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  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_us-gaap_BusinessAcquisitionAxis_1367cf08-f556-4f82-8b97-f5452e996615_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Acquisition [Axis]</link:label>
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    <link:label id="lab_us-gaap_PublicUtilitiesInventoryAxis_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Inventory [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesInventoryAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesInventoryAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesInventoryAxis" xlink:to="lab_us-gaap_PublicUtilitiesInventoryAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesContributiontoConstructionActivities_d18791b7-bdd4-4697-95a2-35d97e16ad52_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesContributiontoConstructionActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contribution to construction activities</link:label>
    <link:label id="lab_pnm_PublicUtilitiesContributiontoConstructionActivities_label_en-US" xlink:label="lab_pnm_PublicUtilitiesContributiontoConstructionActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Contribution to Construction Activities</link:label>
    <link:label id="lab_pnm_PublicUtilitiesContributiontoConstructionActivities_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesContributiontoConstructionActivities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Contribution to Construction Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesContributiontoConstructionActivities" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesContributiontoConstructionActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesContributiontoConstructionActivities" xlink:to="lab_pnm_PublicUtilitiesContributiontoConstructionActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsAbstract_5803aece-0aed-44b1-82d8-9e0148ffad45_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions [Abstract]</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsAbstract_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsAbstract" xlink:to="lab_us-gaap_RelatedPartyTransactionsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_865b2748-f786-4222-9b6d-e0a9d439b0fb_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other liabilities</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Other Noncurrent Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities"/>
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    <link:label id="lab_pnm_LeasesWeightedAverageDiscountRateAbstract_6d2d331c-d9c2-48d8-9714-322b469f619e_terseLabel_en-US" xlink:label="lab_pnm_LeasesWeightedAverageDiscountRateAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted average discount rate:</link:label>
    <link:label id="lab_pnm_LeasesWeightedAverageDiscountRateAbstract_label_en-US" xlink:label="lab_pnm_LeasesWeightedAverageDiscountRateAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leases, Weighted Average Discount Rate [Abstract]</link:label>
    <link:label id="lab_pnm_LeasesWeightedAverageDiscountRateAbstract_documentation_en-US" xlink:label="lab_pnm_LeasesWeightedAverageDiscountRateAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leases, Weighted Average Discount Rate [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LeasesWeightedAverageDiscountRateAbstract" xlink:href="pnm-20230331.xsd#pnm_LeasesWeightedAverageDiscountRateAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LeasesWeightedAverageDiscountRateAbstract" xlink:to="lab_pnm_LeasesWeightedAverageDiscountRateAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NMCapitalMember_c18545bc-2803-432f-b2bd-870a4f70bb10_terseLabel_en-US" xlink:label="lab_pnm_NMCapitalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">NM Capital</link:label>
    <link:label id="lab_pnm_NMCapitalMember_label_en-US" xlink:label="lab_pnm_NMCapitalMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">NM Capital [Member]</link:label>
    <link:label id="lab_pnm_NMCapitalMember_documentation_en-US" xlink:label="lab_pnm_NMCapitalMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">NM Capital [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NMCapitalMember" xlink:href="pnm-20230331.xsd#pnm_NMCapitalMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NMCapitalMember" xlink:to="lab_pnm_NMCapitalMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PaloVerdeNuclearGeneratingStationUnits1And4Member_310211bf-dc7f-446f-8e8e-ae1ab9a1d678_terseLabel_en-US" xlink:label="lab_pnm_PaloVerdeNuclearGeneratingStationUnits1And4Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Palo Verde Nuclear Generating Station, Unit 1 and 4 Leases</link:label>
    <link:label id="lab_pnm_PaloVerdeNuclearGeneratingStationUnits1And4Member_label_en-US" xlink:label="lab_pnm_PaloVerdeNuclearGeneratingStationUnits1And4Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Palo Verde Nuclear Generating Station, Units 1 And 4 [Member]</link:label>
    <link:label id="lab_pnm_PaloVerdeNuclearGeneratingStationUnits1And4Member_documentation_en-US" xlink:label="lab_pnm_PaloVerdeNuclearGeneratingStationUnits1And4Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Palo Verde Nuclear Generating Station, Unit 1 And 4 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PaloVerdeNuclearGeneratingStationUnits1And4Member" xlink:href="pnm-20230331.xsd#pnm_PaloVerdeNuclearGeneratingStationUnits1And4Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PaloVerdeNuclearGeneratingStationUnits1And4Member" xlink:to="lab_pnm_PaloVerdeNuclearGeneratingStationUnits1And4Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeaseRightOfUseAsset_d553ea8f-7372-45f9-8f77-dd05ba947060_totalLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAsset" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-utility property, net</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseRightOfUseAsset_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAsset" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Right-of-Use Asset, after Accumulated Amortization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAsset" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseRightOfUseAsset"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAsset" xlink:to="lab_us-gaap_FinanceLeaseRightOfUseAsset" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_DebtInstrumentExtensionPeriodExercised_7585de06-cc89-48d1-800e-b5181da74907_terseLabel_en-US" xlink:label="lab_pnm_DebtInstrumentExtensionPeriodExercised" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Extension period exercised</link:label>
    <link:label id="lab_pnm_DebtInstrumentExtensionPeriodExercised_label_en-US" xlink:label="lab_pnm_DebtInstrumentExtensionPeriodExercised" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Extension Period Exercised</link:label>
    <link:label id="lab_pnm_DebtInstrumentExtensionPeriodExercised_documentation_en-US" xlink:label="lab_pnm_DebtInstrumentExtensionPeriodExercised" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Extension Period Exercised</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_DebtInstrumentExtensionPeriodExercised" xlink:href="pnm-20230331.xsd#pnm_DebtInstrumentExtensionPeriodExercised"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_DebtInstrumentExtensionPeriodExercised" xlink:to="lab_pnm_DebtInstrumentExtensionPeriodExercised" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PreferredStockSharesOutstanding_878f2625-4e60-4653-ba2d-a3ceadf37e5e_verboseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative preferred stock, shares outstanding (in shares)</link:label>
    <link:label id="lab_us-gaap_PreferredStockSharesOutstanding_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock, Shares Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockSharesOutstanding" xlink:to="lab_us-gaap_PreferredStockSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NonFuelEnergyMember_c5aa568c-e9c3-4730-9595-c16593aa0ca5_terseLabel_en-US" xlink:label="lab_pnm_NonFuelEnergyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-Fuel Energy</link:label>
    <link:label id="lab_pnm_NonFuelEnergyMember_label_en-US" xlink:label="lab_pnm_NonFuelEnergyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-Fuel Energy [Member]</link:label>
    <link:label id="lab_pnm_NonFuelEnergyMember_documentation_en-US" xlink:label="lab_pnm_NonFuelEnergyMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-Fuel Energy [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NonFuelEnergyMember" xlink:href="pnm-20230331.xsd#pnm_NonFuelEnergyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NonFuelEnergyMember" xlink:to="lab_pnm_NonFuelEnergyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GainLossOnInvestments_a7cf3223-a7d2-41c5-9811-09fcaf404a69_verboseLabel_en-US" xlink:label="lab_us-gaap_GainLossOnInvestments" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gains (losses) on investment securities</link:label>
    <link:label id="lab_us-gaap_GainLossOnInvestments_label_en-US" xlink:label="lab_us-gaap_GainLossOnInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gain (Loss) on Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GainLossOnInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnInvestments" xlink:to="lab_us-gaap_GainLossOnInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentAxis_b4f0b555-d5c3-4f2b-89d8-528798538243_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument [Axis]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentAxis_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentAxis" xlink:to="lab_us-gaap_DebtInstrumentAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeaseLiability_041c57ed-2650-446b-bf70-172d1d48b98c_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease liabilities as of March 31, 2023</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseLiability_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiability" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiability"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiability" xlink:to="lab_us-gaap_FinanceLeaseLiability" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsOfDividendsCommonStock_2a104263-bd7c-4b3d-83a8-457b15a847b3_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfDividendsCommonStock" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Dividends paid</link:label>
    <link:label id="lab_us-gaap_PaymentsOfDividendsCommonStock_label_en-US" xlink:label="lab_us-gaap_PaymentsOfDividendsCommonStock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments of Ordinary Dividends, Common Stock</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsOfDividendsCommonStock" xlink:to="lab_us-gaap_PaymentsOfDividendsCommonStock" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PNMRToTNMPMember_e495ce78-56d4-4d4c-90cc-8f86f619b89c_terseLabel_en-US" xlink:label="lab_pnm_PNMRToTNMPMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR to TNMP</link:label>
    <link:label id="lab_pnm_PNMRToTNMPMember_label_en-US" xlink:label="lab_pnm_PNMRToTNMPMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR To TNMP [Member]</link:label>
    <link:label id="lab_pnm_PNMRToTNMPMember_documentation_en-US" xlink:label="lab_pnm_PNMRToTNMPMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pnmr to Tnmp [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PNMRToTNMPMember" xlink:href="pnm-20230331.xsd#pnm_PNMRToTNMPMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PNMRToTNMPMember" xlink:to="lab_pnm_PNMRToTNMPMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdditionalPaidInCapital_4fece941-c8fb-433b-b226-f1eba42fe497_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapital" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Paid-in-capital</link:label>
    <link:label id="lab_us-gaap_AdditionalPaidInCapital_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapital" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Additional Paid in Capital</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapital" xlink:to="lab_us-gaap_AdditionalPaidInCapital" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_34563416-baa8-4ece-87e7-663e71500f49_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">After 5 years through 10 years</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PublicUtilityAxis_15ef16c5-387e-4e3b-b09d-6ace0fcd8f2a_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utility [Axis]</link:label>
    <link:label id="lab_us-gaap_PublicUtilityAxis_label_en-US" xlink:label="lab_us-gaap_PublicUtilityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utility [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilityAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilityAxis" xlink:to="lab_us-gaap_PublicUtilityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueDisclosureItemAmountsDomain_161abf62-c54b-492e-bddc-deff29a0e4c3_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosureItemAmountsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Measurement [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueDisclosureItemAmountsDomain_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosureItemAmountsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Measurement [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosureItemAmountsDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValueDisclosureItemAmountsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosureItemAmountsDomain" xlink:to="lab_us-gaap_FairValueDisclosureItemAmountsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_9d435e04-7db3-4a7d-843f-94706b504f5e_terseLabel_en-US" xlink:label="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financial Instruments [Domain]</link:label>
    <link:label id="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_label_en-US" xlink:label="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financial Instruments [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:to="lab_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NavajoNationAllotteeMattersMember_4454508e-16a3-4454-8a45-8a42c7ec0855_terseLabel_en-US" xlink:label="lab_pnm_NavajoNationAllotteeMattersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Navajo Nation Allottee Matters</link:label>
    <link:label id="lab_pnm_NavajoNationAllotteeMattersMember_label_en-US" xlink:label="lab_pnm_NavajoNationAllotteeMattersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Navajo Nation Allottee Matters [Member]</link:label>
    <link:label id="lab_pnm_NavajoNationAllotteeMattersMember_documentation_en-US" xlink:label="lab_pnm_NavajoNationAllotteeMattersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Navajo Nation Allottee Matters [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NavajoNationAllotteeMattersMember" xlink:href="pnm-20230331.xsd#pnm_NavajoNationAllotteeMattersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NavajoNationAllotteeMattersMember" xlink:to="lab_pnm_NavajoNationAllotteeMattersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_a548fd6c-8ff6-4513-b8ca-40077031b229_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2027</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability, to be Paid, Year Four</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour" xlink:to="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearFour" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FinanceLeaseRightOfUseAssetAccumulatedDepreciation_e1f9d612-af77-47d1-a2eb-1e4ba810fe3d_negatedTerseLabel_en-US" xlink:label="lab_pnm_FinanceLeaseRightOfUseAssetAccumulatedDepreciation" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated depreciation</link:label>
    <link:label id="lab_pnm_FinanceLeaseRightOfUseAssetAccumulatedDepreciation_label_en-US" xlink:label="lab_pnm_FinanceLeaseRightOfUseAssetAccumulatedDepreciation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Right-Of-Use Asset, Accumulated Depreciation</link:label>
    <link:label id="lab_pnm_FinanceLeaseRightOfUseAssetAccumulatedDepreciation_documentation_en-US" xlink:label="lab_pnm_FinanceLeaseRightOfUseAssetAccumulatedDepreciation" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Right-Of-Use Asset, Accumulated Depreciation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FinanceLeaseRightOfUseAssetAccumulatedDepreciation" xlink:href="pnm-20230331.xsd#pnm_FinanceLeaseRightOfUseAssetAccumulatedDepreciation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FinanceLeaseRightOfUseAssetAccumulatedDepreciation" xlink:to="lab_pnm_FinanceLeaseRightOfUseAssetAccumulatedDepreciation" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_9de9c4e4-5c07-454e-b60e-2e25416854bd_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating leases</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Weighted Average Discount Rate, Percent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:to="lab_us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_73584280-9f24-4418-8827-96e9a9f7cd0f_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stated interest rate</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Interest Rate, Stated Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:to="lab_us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfRegulatedUtilities_aacc951b-e639-495c-b665-370d9a376617_terseLabel_en-US" xlink:label="lab_pnm_NumberOfRegulatedUtilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of regulated utilities</link:label>
    <link:label id="lab_pnm_NumberOfRegulatedUtilities_label_en-US" xlink:label="lab_pnm_NumberOfRegulatedUtilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Regulated Utilities</link:label>
    <link:label id="lab_pnm_NumberOfRegulatedUtilities_documentation_en-US" xlink:label="lab_pnm_NumberOfRegulatedUtilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Regulated Utilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfRegulatedUtilities" xlink:href="pnm-20230331.xsd#pnm_NumberOfRegulatedUtilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfRegulatedUtilities" xlink:to="lab_pnm_NumberOfRegulatedUtilities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherCurrentAssetsMember_6feeab65-0493-48d7-967e-85271b7e05a2_terseLabel_en-US" xlink:label="lab_us-gaap_OtherCurrentAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Current Assets</link:label>
    <link:label id="lab_us-gaap_OtherCurrentAssetsMember_label_en-US" xlink:label="lab_us-gaap_OtherCurrentAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Current Assets [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCurrentAssetsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherCurrentAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCurrentAssetsMember" xlink:to="lab_us-gaap_OtherCurrentAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare_92ff1ea3-457a-4a03-9b9d-e9401f912e41_terseLabel_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative preferred stock of subsidiary, stated value (in dollars per share)</link:label>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare_label_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Par Or Stated Value Per Share</link:label>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare_documentation_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Par Or Stated Value Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare" xlink:href="pnm-20230331.xsd#pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare" xlink:to="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsParOrStatedValuePerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherNoncashIncomeExpense_d0d4cde9-1702-42df-a40a-b7b4f9b5c32e_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OtherNoncashIncomeExpense" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other, net</link:label>
    <link:label id="lab_us-gaap_OtherNoncashIncomeExpense_label_en-US" xlink:label="lab_us-gaap_OtherNoncashIncomeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Noncash Income (Expense)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNoncashIncomeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherNoncashIncomeExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNoncashIncomeExpense" xlink:to="lab_us-gaap_OtherNoncashIncomeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_MergerAgreementMember_75fcdd30-357a-45e9-92ba-5cfd9df7eb2e_terseLabel_en-US" xlink:label="lab_pnm_MergerAgreementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Merger Agreement</link:label>
    <link:label id="lab_pnm_MergerAgreementMember_label_en-US" xlink:label="lab_pnm_MergerAgreementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Merger Agreement [Member]</link:label>
    <link:label id="lab_pnm_MergerAgreementMember_documentation_en-US" xlink:label="lab_pnm_MergerAgreementMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Merger Agreement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_MergerAgreementMember" xlink:href="pnm-20230331.xsd#pnm_MergerAgreementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_MergerAgreementMember" xlink:to="lab_pnm_MergerAgreementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearOne_d569b6fe-aa3b-4791-b51a-9634c3a9ec64_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearOne" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Annual funding post-term reclamation trust, year one</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearOne_label_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearOne" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Annual Funding Post-Term Reclamation Trust, Year One</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearOne_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearOne" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Annual Funding Post-Term Reclamation Trust, Year One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearOne" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearOne"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearOne" xlink:to="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearOne" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DividendsPreferredStock_588a9b75-7442-4f96-833d-66ab148679ad_negatedLabel_en-US" xlink:label="lab_us-gaap_DividendsPreferredStock" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock Dividend Requirements</link:label>
    <link:label id="lab_us-gaap_DividendsPreferredStock_f08a8011-965d-4c84-8a7f-06cff5ca7ea8_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DividendsPreferredStock" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsidiary preferred stock dividends</link:label>
    <link:label id="lab_us-gaap_DividendsPreferredStock_label_en-US" xlink:label="lab_us-gaap_DividendsPreferredStock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Dividends, Preferred Stock</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPreferredStock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DividendsPreferredStock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendsPreferredStock" xlink:to="lab_us-gaap_DividendsPreferredStock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UnusualRiskOrUncertaintyNatureDomain_1933a40b-56ba-432a-b686-20e358dc4240_terseLabel_en-US" xlink:label="lab_us-gaap_UnusualRiskOrUncertaintyNatureDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unusual Risk or Uncertainty, Nature [Domain]</link:label>
    <link:label id="lab_us-gaap_UnusualRiskOrUncertaintyNatureDomain_label_en-US" xlink:label="lab_us-gaap_UnusualRiskOrUncertaintyNatureDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unusual Risk or Uncertainty, Nature [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnusualRiskOrUncertaintyNatureDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UnusualRiskOrUncertaintyNatureDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnusualRiskOrUncertaintyNatureDomain" xlink:to="lab_us-gaap_UnusualRiskOrUncertaintyNatureDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_SanJuanGenerationStationUnit1Member_e9d4e4da-e2f2-48c0-8395-885080218b1b_terseLabel_en-US" xlink:label="lab_pnm_SanJuanGenerationStationUnit1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">San Juan Generation Station, Unit 1</link:label>
    <link:label id="lab_pnm_SanJuanGenerationStationUnit1Member_label_en-US" xlink:label="lab_pnm_SanJuanGenerationStationUnit1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">San Juan Generation Station, Unit 1 [Member]</link:label>
    <link:label id="lab_pnm_SanJuanGenerationStationUnit1Member_documentation_en-US" xlink:label="lab_pnm_SanJuanGenerationStationUnit1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">San Juan Generation Station, Unit 1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_SanJuanGenerationStationUnit1Member" xlink:href="pnm-20230331.xsd#pnm_SanJuanGenerationStationUnit1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_SanJuanGenerationStationUnit1Member" xlink:to="lab_pnm_SanJuanGenerationStationUnit1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_c173feb0-25e1-449b-99a7-9d74072356cc_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2026</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability, to be Paid, Year Three</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree" xlink:to="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearThree" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SegmentReportingInformationProfitLossAbstract_ae47c269-1887-4e43-ae2b-b2f7475b7772_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationProfitLossAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segment Reporting Information, Profit (Loss) [Abstract]</link:label>
    <link:label id="lab_us-gaap_SegmentReportingInformationProfitLossAbstract_label_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationProfitLossAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segment Reporting Information, Profit (Loss) [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationProfitLossAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SegmentReportingInformationProfitLossAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingInformationProfitLossAbstract" xlink:to="lab_us-gaap_SegmentReportingInformationProfitLossAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues_699e286f-14d0-4470-88d0-7ca966e96cd8_negatedLabel_en-US" xlink:label="lab_pnm_IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts receivable and unbilled revenues</link:label>
    <link:label id="lab_pnm_IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues_label_en-US" xlink:label="lab_pnm_IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase Decrease In Accounts Receivable And Unbilled Revenues</link:label>
    <link:label id="lab_pnm_IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues_documentation_en-US" xlink:label="lab_pnm_IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">The net change during the period in the amount due from customers for the credit sale of goods and services; includes accounts receivable billed and unbilled.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues" xlink:href="pnm-20230331.xsd#pnm_IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues" xlink:to="lab_pnm_IncreaseDecreaseInAccountsReceivableAndUnbilledRevenues" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_66092512-ca56-4e9c-8be0-d6e903d4aeac_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reclassification adjustment for (gains) included in net earnings, net of income tax expense of $178 and $375</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_702db4d3-bd48-405d-9cdb-b51d723cfe5c_negatedLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reclassification adjustment for (gains) included in net earnings, net of income tax expense of $178 and $375</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesConcentrationRiskAmountToSellDueToAgreement_96230fbe-87f5-4bd6-a3b5-ff5d51c436a6_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesConcentrationRiskAmountToSellDueToAgreement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Power to be sold to third party (in megawatts)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesConcentrationRiskAmountToSellDueToAgreement_label_en-US" xlink:label="lab_pnm_PublicUtilitiesConcentrationRiskAmountToSellDueToAgreement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Concentration Risk, Amount To Sell Due To Agreement</link:label>
    <link:label id="lab_pnm_PublicUtilitiesConcentrationRiskAmountToSellDueToAgreement_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesConcentrationRiskAmountToSellDueToAgreement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Concentration Risk, Amount To Sell Due To Agreement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesConcentrationRiskAmountToSellDueToAgreement" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesConcentrationRiskAmountToSellDueToAgreement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesConcentrationRiskAmountToSellDueToAgreement" xlink:to="lab_pnm_PublicUtilitiesConcentrationRiskAmountToSellDueToAgreement" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquityComponentDomain_0713e5e0-11b6-4746-97d1-64e7a75dc53c_terseLabel_en-US" xlink:label="lab_us-gaap_EquityComponentDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:label id="lab_us-gaap_EquityComponentDomain_label_en-US" xlink:label="lab_us-gaap_EquityComponentDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Component [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityComponentDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EquityComponentDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityComponentDomain" xlink:to="lab_us-gaap_EquityComponentDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LeasesOperatingLineItems_81af1af2-d398-494a-932e-92090dde3643_terseLabel_en-US" xlink:label="lab_pnm_LeasesOperatingLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leases, Operating [Line Items]</link:label>
    <link:label id="lab_pnm_LeasesOperatingLineItems_label_en-US" xlink:label="lab_pnm_LeasesOperatingLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leases, Operating [Line Items]</link:label>
    <link:label id="lab_pnm_LeasesOperatingLineItems_documentation_en-US" xlink:label="lab_pnm_LeasesOperatingLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">[Line Items] for Leases, Operating [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LeasesOperatingLineItems" xlink:href="pnm-20230331.xsd#pnm_LeasesOperatingLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LeasesOperatingLineItems" xlink:to="lab_pnm_LeasesOperatingLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SubsequentEventTypeDomain_30532184-f448-4b0d-bf67-3afa02ccca06_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsequent Event Type [Domain]</link:label>
    <link:label id="lab_us-gaap_SubsequentEventTypeDomain_label_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsequent Event Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SubsequentEventTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventTypeDomain" xlink:to="lab_us-gaap_SubsequentEventTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ProceedsFromTransmissionInterconnectionAndSecurityDepositArrangements_84a3f5be-5897-4f8b-ac50-0a7cbc6b5501_terseLabel_en-US" xlink:label="lab_pnm_ProceedsFromTransmissionInterconnectionAndSecurityDepositArrangements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Transmission interconnection and security deposit arrangements</link:label>
    <link:label id="lab_pnm_ProceedsFromTransmissionInterconnectionAndSecurityDepositArrangements_label_en-US" xlink:label="lab_pnm_ProceedsFromTransmissionInterconnectionAndSecurityDepositArrangements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds From Transmission Interconnection And Security Deposit Arrangements</link:label>
    <link:label id="lab_pnm_ProceedsFromTransmissionInterconnectionAndSecurityDepositArrangements_documentation_en-US" xlink:label="lab_pnm_ProceedsFromTransmissionInterconnectionAndSecurityDepositArrangements" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds From Transmission Interconnection And Security Deposit Arrangements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ProceedsFromTransmissionInterconnectionAndSecurityDepositArrangements" xlink:href="pnm-20230331.xsd#pnm_ProceedsFromTransmissionInterconnectionAndSecurityDepositArrangements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ProceedsFromTransmissionInterconnectionAndSecurityDepositArrangements" xlink:to="lab_pnm_ProceedsFromTransmissionInterconnectionAndSecurityDepositArrangements" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SecuredDebtMember_4f18df9f-ca67-4c31-946e-8cc8685905e9_terseLabel_en-US" xlink:label="lab_us-gaap_SecuredDebtMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Mortgage Bonds</link:label>
    <link:label id="lab_us-gaap_SecuredDebtMember_label_en-US" xlink:label="lab_us-gaap_SecuredDebtMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Secured Debt [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SecuredDebtMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SecuredDebtMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SecuredDebtMember" xlink:to="lab_us-gaap_SecuredDebtMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_OwnershipAxis_6ab2c4fa-5ecd-4f20-bb85-126dcef50095_terseLabel_en-US" xlink:label="lab_srt_OwnershipAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Ownership [Axis]</link:label>
    <link:label id="lab_srt_OwnershipAxis_label_en-US" xlink:label="lab_srt_OwnershipAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Ownership [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipAxis" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_OwnershipAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_OwnershipAxis" xlink:to="lab_srt_OwnershipAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_EquityMethodInvesteeNameDomain_99fb55c5-43a3-4c16-be22-3e7deaae9e41_terseLabel_en-US" xlink:label="lab_srt_EquityMethodInvesteeNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment, Name [Domain]</link:label>
    <link:label id="lab_srt_EquityMethodInvesteeNameDomain_label_en-US" xlink:label="lab_srt_EquityMethodInvesteeNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment, Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EquityMethodInvesteeNameDomain" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_EquityMethodInvesteeNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_EquityMethodInvesteeNameDomain" xlink:to="lab_srt_EquityMethodInvesteeNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LossContingencyEstimateOfPossibleLoss_da13b866-a9ba-4985-b98e-74d96abcca74_terseLabel_en-US" xlink:label="lab_us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Estimate of possible loss</link:label>
    <link:label id="lab_us-gaap_LossContingencyEstimateOfPossibleLoss_label_en-US" xlink:label="lab_us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingency, Estimate of Possible Loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LossContingencyEstimateOfPossibleLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:to="lab_us-gaap_LossContingencyEstimateOfPossibleLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_819e0c1f-7f80-41e9-ba46-ca6124d0b782_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amortization of right-of-use assets</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Right-of-Use Asset, Amortization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseRightOfUseAssetAmortization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:to="lab_us-gaap_FinanceLeaseRightOfUseAssetAmortization" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyDomain_bf8cb916-e9bb-46a0-abcb-2195ef0b1fca_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party [Domain]</link:label>
    <link:label id="lab_us-gaap_RelatedPartyDomain_label_en-US" xlink:label="lab_us-gaap_RelatedPartyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyDomain" xlink:to="lab_us-gaap_RelatedPartyDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_MineReclamationTrustMember_29081682-f079-460a-b6b6-e90949a06b2a_terseLabel_en-US" xlink:label="lab_pnm_MineReclamationTrustMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Mine Reclamation Trust</link:label>
    <link:label id="lab_pnm_MineReclamationTrustMember_label_en-US" xlink:label="lab_pnm_MineReclamationTrustMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Mine Reclamation Trust [Member]</link:label>
    <link:label id="lab_pnm_MineReclamationTrustMember_documentation_en-US" xlink:label="lab_pnm_MineReclamationTrustMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Mine Reclamation Trust [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_MineReclamationTrustMember" xlink:href="pnm-20230331.xsd#pnm_MineReclamationTrustMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_MineReclamationTrustMember" xlink:to="lab_pnm_MineReclamationTrustMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_BankOfAmericaNAMember_2ccfcf57-dc7b-4f25-b76b-d3f90cdb3ce6_terseLabel_en-US" xlink:label="lab_pnm_BankOfAmericaNAMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Bank Of America, N.A.</link:label>
    <link:label id="lab_pnm_BankOfAmericaNAMember_label_en-US" xlink:label="lab_pnm_BankOfAmericaNAMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Bank Of America, N.A. [Member]</link:label>
    <link:label id="lab_pnm_BankOfAmericaNAMember_documentation_en-US" xlink:label="lab_pnm_BankOfAmericaNAMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Bank Of America, N.A.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_BankOfAmericaNAMember" xlink:href="pnm-20230331.xsd#pnm_BankOfAmericaNAMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_BankOfAmericaNAMember" xlink:to="lab_pnm_BankOfAmericaNAMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_df1770ad-176b-4892-8282-82d8caf6dc8c_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available-for-sale debt securities</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_7cb91036-3af8-47a7-b06c-76b2ab677f66_totalLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available-for-sale debt securities</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-Sale</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecurities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtSecurities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_HedgingDesignationDomain_5c2884ee-cff0-4bc8-a86f-74741f07234d_terseLabel_en-US" xlink:label="lab_us-gaap_HedgingDesignationDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Hedging Designation [Domain]</link:label>
    <link:label id="lab_us-gaap_HedgingDesignationDomain_label_en-US" xlink:label="lab_us-gaap_HedgingDesignationDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Hedging Designation [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_HedgingDesignationDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_HedgingDesignationDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_HedgingDesignationDomain" xlink:to="lab_us-gaap_HedgingDesignationDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrust_a961754c-744a-472e-b648-f38910847cf8_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrust" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Annual funding post-term reclamation trust</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrust_label_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrust" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Annual Funding Post-Term Reclamation Trust</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrust_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrust" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Annual Funding Post-Term Reclamation Trust</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrust" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrust"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrust" xlink:to="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrust" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TNMPRevolvingCreditFacilityMember_2a4d1b88-1c21-4e01-a087-ff06c97c40d7_terseLabel_en-US" xlink:label="lab_pnm_TNMPRevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP Revolving Credit Facility</link:label>
    <link:label id="lab_pnm_TNMPRevolvingCreditFacilityMember_label_en-US" xlink:label="lab_pnm_TNMPRevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP Revolving Credit Facility [Member]</link:label>
    <link:label id="lab_pnm_TNMPRevolvingCreditFacilityMember_documentation_en-US" xlink:label="lab_pnm_TNMPRevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP Revolving Credit Facility [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TNMPRevolvingCreditFacilityMember" xlink:href="pnm-20230331.xsd#pnm_TNMPRevolvingCreditFacilityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_TNMPRevolvingCreditFacilityMember" xlink:to="lab_pnm_TNMPRevolvingCreditFacilityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NotesPayableRelatedPartiesCurrentAndNoncurrent_1e660ea1-af5e-469a-aace-4ce6045eceac_terseLabel_en-US" xlink:label="lab_us-gaap_NotesPayableRelatedPartiesCurrentAndNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Notes payable, related parties</link:label>
    <link:label id="lab_us-gaap_NotesPayableRelatedPartiesCurrentAndNoncurrent_label_en-US" xlink:label="lab_us-gaap_NotesPayableRelatedPartiesCurrentAndNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Notes Payable, Related Parties</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableRelatedPartiesCurrentAndNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NotesPayableRelatedPartiesCurrentAndNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NotesPayableRelatedPartiesCurrentAndNoncurrent" xlink:to="lab_us-gaap_NotesPayableRelatedPartiesCurrentAndNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_4da83d7d-296b-4f5e-8afd-f1c89cdb85fb_terseLabel_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Supplemental Cash Flow Disclosures:</link:label>
    <link:label id="lab_us-gaap_SupplementalCashFlowInformationAbstract_label_en-US" xlink:label="lab_us-gaap_SupplementalCashFlowInformationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Supplemental Cash Flow Information [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SupplementalCashFlowInformationAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="lab_us-gaap_SupplementalCashFlowInformationAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_VariableInterestEntitiesAbstract_a3791d6d-301c-40a0-8b6e-00d24da61092_terseLabel_en-US" xlink:label="lab_pnm_VariableInterestEntitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Interest Entities [Abstract]</link:label>
    <link:label id="lab_pnm_VariableInterestEntitiesAbstract_label_en-US" xlink:label="lab_pnm_VariableInterestEntitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Interest Entities [Abstract]</link:label>
    <link:label id="lab_pnm_VariableInterestEntitiesAbstract_documentation_en-US" xlink:label="lab_pnm_VariableInterestEntitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Interest Entities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_VariableInterestEntitiesAbstract" xlink:href="pnm-20230331.xsd#pnm_VariableInterestEntitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_VariableInterestEntitiesAbstract" xlink:to="lab_pnm_VariableInterestEntitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_IndustryWideRetrospectiveAssessmentProgramMember_07f97068-716d-4c16-8955-dae0ab1f0307_terseLabel_en-US" xlink:label="lab_pnm_IndustryWideRetrospectiveAssessmentProgramMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Industry Wide Retrospective Assessment Program</link:label>
    <link:label id="lab_pnm_IndustryWideRetrospectiveAssessmentProgramMember_label_en-US" xlink:label="lab_pnm_IndustryWideRetrospectiveAssessmentProgramMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Industry Wide Retrospective Assessment Program [Member]</link:label>
    <link:label id="lab_pnm_IndustryWideRetrospectiveAssessmentProgramMember_documentation_en-US" xlink:label="lab_pnm_IndustryWideRetrospectiveAssessmentProgramMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Industry Wide Retrospective Assessment Program [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_IndustryWideRetrospectiveAssessmentProgramMember" xlink:href="pnm-20230331.xsd#pnm_IndustryWideRetrospectiveAssessmentProgramMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_IndustryWideRetrospectiveAssessmentProgramMember" xlink:to="lab_pnm_IndustryWideRetrospectiveAssessmentProgramMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PlanNameDomain_d351b948-eca4-4e31-a6dd-66d5b077201a_terseLabel_en-US" xlink:label="lab_us-gaap_PlanNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Plan Name [Domain]</link:label>
    <link:label id="lab_us-gaap_PlanNameDomain_label_en-US" xlink:label="lab_us-gaap_PlanNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Plan Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PlanNameDomain" xlink:to="lab_us-gaap_PlanNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesNoncurrent_3cd0631e-209f-4501-bf0c-90c79f5554fe_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-current liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesNoncurrent_label_en-US" xlink:label="lab_us-gaap_LiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesNoncurrent" xlink:to="lab_us-gaap_LiabilitiesNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CashFlowLesseeLineItems_719568bb-341a-4dc2-9d3b-cd30cf7b1c2d_terseLabel_en-US" xlink:label="lab_pnm_CashFlowLesseeLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash Flow, Lessee [Line Items]</link:label>
    <link:label id="lab_pnm_CashFlowLesseeLineItems_label_en-US" xlink:label="lab_pnm_CashFlowLesseeLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash Flow, Lessee [Line Items]</link:label>
    <link:label id="lab_pnm_CashFlowLesseeLineItems_documentation_en-US" xlink:label="lab_pnm_CashFlowLesseeLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">[Line Items] for Cash Flow, Lessee [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CashFlowLesseeLineItems" xlink:href="pnm-20230331.xsd#pnm_CashFlowLesseeLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CashFlowLesseeLineItems" xlink:to="lab_pnm_CashFlowLesseeLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfMonitoringWellsContainingFreePhaseHydrocarbonProducts_9af2f20d-4a84-4ac5-8471-21a8c90658fa_terseLabel_en-US" xlink:label="lab_pnm_NumberOfMonitoringWellsContainingFreePhaseHydrocarbonProducts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of monitoring wells containing free-phase hydrocarbon products</link:label>
    <link:label id="lab_pnm_NumberOfMonitoringWellsContainingFreePhaseHydrocarbonProducts_label_en-US" xlink:label="lab_pnm_NumberOfMonitoringWellsContainingFreePhaseHydrocarbonProducts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Monitoring Wells Containing Free-Phase Hydrocarbon Products</link:label>
    <link:label id="lab_pnm_NumberOfMonitoringWellsContainingFreePhaseHydrocarbonProducts_documentation_en-US" xlink:label="lab_pnm_NumberOfMonitoringWellsContainingFreePhaseHydrocarbonProducts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Monitoring Wells Containing Free-Phase Hydrocarbon Products</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfMonitoringWellsContainingFreePhaseHydrocarbonProducts" xlink:href="pnm-20230331.xsd#pnm_NumberOfMonitoringWellsContainingFreePhaseHydrocarbonProducts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfMonitoringWellsContainingFreePhaseHydrocarbonProducts" xlink:to="lab_pnm_NumberOfMonitoringWellsContainingFreePhaseHydrocarbonProducts" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressStateOrProvince_7808d371-9b30-471c-9fd2-77702c57eae4_terseLabel_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:label id="lab_dei_EntityAddressStateOrProvince_label_en-US" xlink:label="lab_dei_EntityAddressStateOrProvince" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, State or Province</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressStateOrProvince" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressStateOrProvince"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressStateOrProvince" xlink:to="lab_dei_EntityAddressStateOrProvince" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_e6e2e4a9-9f49-4409-8a57-ebfdb0a0d3ef_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income:</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsTargetedEnergySavings_f2e68252-5c55-4774-8fb9-68ae57f95507_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsTargetedEnergySavings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy efficiency and load management programs targeted energy savings (in Gigawatts)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsTargetedEnergySavings_label_en-US" xlink:label="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsTargetedEnergySavings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Energy Efficiency And Load Management Programs Targeted Energy Savings</link:label>
    <link:label id="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsTargetedEnergySavings_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsTargetedEnergySavings" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Energy Efficiency And Load Management Programs Targeted Energy Savings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsTargetedEnergySavings" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsTargetedEnergySavings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsTargetedEnergySavings" xlink:to="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsTargetedEnergySavings" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RelatedPartyTransactionByTransactionTypeAxis_9d21230e-46c2-4a50-9d7b-4471e3d9ae8f_terseLabel_en-US" xlink:label="lab_pnm_RelatedPartyTransactionByTransactionTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction, By Transaction Type [Axis]</link:label>
    <link:label id="lab_pnm_RelatedPartyTransactionByTransactionTypeAxis_label_en-US" xlink:label="lab_pnm_RelatedPartyTransactionByTransactionTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction, By Transaction Type [Axis]</link:label>
    <link:label id="lab_pnm_RelatedPartyTransactionByTransactionTypeAxis_documentation_en-US" xlink:label="lab_pnm_RelatedPartyTransactionByTransactionTypeAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction, By Transaction Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RelatedPartyTransactionByTransactionTypeAxis" xlink:href="pnm-20230331.xsd#pnm_RelatedPartyTransactionByTransactionTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_RelatedPartyTransactionByTransactionTypeAxis" xlink:to="lab_pnm_RelatedPartyTransactionByTransactionTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FirmCapacityMember_a9c7172b-4170-4e68-af61-8bd437161d90_terseLabel_en-US" xlink:label="lab_pnm_FirmCapacityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Firm Capacity</link:label>
    <link:label id="lab_pnm_FirmCapacityMember_label_en-US" xlink:label="lab_pnm_FirmCapacityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Firm Capacity [Member]</link:label>
    <link:label id="lab_pnm_FirmCapacityMember_documentation_en-US" xlink:label="lab_pnm_FirmCapacityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Firm Capacity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FirmCapacityMember" xlink:href="pnm-20230331.xsd#pnm_FirmCapacityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FirmCapacityMember" xlink:to="lab_pnm_FirmCapacityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AwardTypeAxis_3cd66d1d-1a96-43b0-abda-5be111801085_terseLabel_en-US" xlink:label="lab_us-gaap_AwardTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Award Type [Axis]</link:label>
    <link:label id="lab_us-gaap_AwardTypeAxis_label_en-US" xlink:label="lab_us-gaap_AwardTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Award Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AwardTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AwardTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AwardTypeAxis" xlink:to="lab_us-gaap_AwardTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherPensionPlansDefinedBenefitMember_ab81eb72-66cf-471c-9066-7701b7b19265_terseLabel_en-US" xlink:label="lab_us-gaap_OtherPensionPlansDefinedBenefitMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Executive Retirement Program</link:label>
    <link:label id="lab_us-gaap_OtherPensionPlansDefinedBenefitMember_label_en-US" xlink:label="lab_us-gaap_OtherPensionPlansDefinedBenefitMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Pension Plan [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherPensionPlansDefinedBenefitMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherPensionPlansDefinedBenefitMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherPensionPlansDefinedBenefitMember" xlink:to="lab_us-gaap_OtherPensionPlansDefinedBenefitMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AreaOfLand_2810250a-d8cc-4911-a46f-83c4e689c9af_terseLabel_en-US" xlink:label="lab_us-gaap_AreaOfLand" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Area of land (in acres)</link:label>
    <link:label id="lab_us-gaap_AreaOfLand_label_en-US" xlink:label="lab_us-gaap_AreaOfLand" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Area of Land</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AreaOfLand" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AreaOfLand"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AreaOfLand" xlink:to="lab_us-gaap_AreaOfLand" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_225fc7d4-171b-49fa-8fe3-e6c9fd4be00b_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating lease liabilities</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_07e7fa2e-f44d-4851-895e-7cf7d6c4176b_verboseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current portion of operating lease liabilities</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityCurrent_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Liability, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseLiabilityCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilityCurrent" xlink:to="lab_us-gaap_OperatingLeaseLiabilityCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LeaseCostAbstract_cbb55cbe-180f-4740-8810-03c56c71d3e9_terseLabel_en-US" xlink:label="lab_us-gaap_LeaseCostAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financing lease cost:</link:label>
    <link:label id="lab_us-gaap_LeaseCostAbstract_label_en-US" xlink:label="lab_us-gaap_LeaseCostAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease, Cost [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCostAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseCostAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LeaseCostAbstract" xlink:to="lab_us-gaap_LeaseCostAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearFour_61226199-ddd6-4782-a223-c3eb0470dc7b_terseLabel_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearFour" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maximum number of shares awarded in year four (in shares)</link:label>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearFour_label_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearFour" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-Based Compensation Arrangement By Share-Based Payment Award, Maximum Number Of Shares In Year Four</link:label>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearFour_documentation_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearFour" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-Based Compensation Arrangement By Share-Based Payment Award, Maximum Number Of Shares In Year Four</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearFour" xlink:href="pnm-20230331.xsd#pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearFour"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearFour" xlink:to="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearFour" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FinanceLeaseLiabilityCurrentOther_ecb68653-e314-4790-826d-54498de8cbae_terseLabel_en-US" xlink:label="lab_pnm_FinanceLeaseLiabilityCurrentOther" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other current liabilities</link:label>
    <link:label id="lab_pnm_FinanceLeaseLiabilityCurrentOther_label_en-US" xlink:label="lab_pnm_FinanceLeaseLiabilityCurrentOther" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability, Current, Other</link:label>
    <link:label id="lab_pnm_FinanceLeaseLiabilityCurrentOther_documentation_en-US" xlink:label="lab_pnm_FinanceLeaseLiabilityCurrentOther" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability, Current, Other</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FinanceLeaseLiabilityCurrentOther" xlink:href="pnm-20230331.xsd#pnm_FinanceLeaseLiabilityCurrentOther"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FinanceLeaseLiabilityCurrentOther" xlink:to="lab_pnm_FinanceLeaseLiabilityCurrentOther" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherCommitmentsDomain_3106fa9b-a8b5-498f-a757-475b03efe54a_terseLabel_en-US" xlink:label="lab_us-gaap_OtherCommitmentsDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Commitments [Domain]</link:label>
    <link:label id="lab_us-gaap_OtherCommitmentsDomain_label_en-US" xlink:label="lab_us-gaap_OtherCommitmentsDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Commitments [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherCommitmentsDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherCommitmentsDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherCommitmentsDomain" xlink:to="lab_us-gaap_OtherCommitmentsDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PublicUtilitiesRegulatoryProceedingAxis_4561dad5-1b57-42c2-a0c5-91226cac285a_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRegulatoryProceedingAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Regulatory Proceeding [Axis]</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesRegulatoryProceedingAxis_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRegulatoryProceedingAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Regulatory Proceeding [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesRegulatoryProceedingAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesRegulatoryProceedingAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesRegulatoryProceedingAxis" xlink:to="lab_us-gaap_PublicUtilitiesRegulatoryProceedingAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermDebtNoncurrent_6d2a9956-d182-4515-b432-9a160c551e7f_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Debt, net of Unamortized Premiums, Discounts, and Debt Issuance Costs</link:label>
    <link:label id="lab_us-gaap_LongTermDebtNoncurrent_label_en-US" xlink:label="lab_us-gaap_LongTermDebtNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-Term Debt, Excluding Current Maturities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtNoncurrent" xlink:to="lab_us-gaap_LongTermDebtNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_Liabilities_c418ebf7-83bd-4d7c-863b-026d90cc7ffc_totalLabel_en-US" xlink:label="lab_us-gaap_Liabilities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total liabilities</link:label>
    <link:label id="lab_us-gaap_Liabilities_label_en-US" xlink:label="lab_us-gaap_Liabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Liabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Liabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Liabilities" xlink:to="lab_us-gaap_Liabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_d2aea49d-3fcf-482f-914e-8bc5eb5404aa_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating leases</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Weighted Average Remaining Lease Term</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:to="lab_us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromSaleOfProductiveAssets_c18c4adb-c2eb-418f-bb65-4508a15f572e_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from sale of PVNGS plant assets (Note 13)</link:label>
    <link:label id="lab_us-gaap_ProceedsFromSaleOfProductiveAssets_10f05958-a6d7-45db-bdf5-750cd9d3684e_verboseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from sale of productive assets</link:label>
    <link:label id="lab_us-gaap_ProceedsFromSaleOfProductiveAssets_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from Sale of Productive Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromSaleOfProductiveAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:to="lab_us-gaap_ProceedsFromSaleOfProductiveAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_49a271ce-653c-457a-9f0c-c3298b55a317_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award [Line Items]</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FuelAndPurchasedPowerAdjustmentClauseMember_d14fc6fd-d18a-49e7-8612-d69567c49d47_terseLabel_en-US" xlink:label="lab_pnm_FuelAndPurchasedPowerAdjustmentClauseMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fuel and purchased power costs</link:label>
    <link:label id="lab_pnm_FuelAndPurchasedPowerAdjustmentClauseMember_label_en-US" xlink:label="lab_pnm_FuelAndPurchasedPowerAdjustmentClauseMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fuel and Purchased Power Adjustment Clause [Member]</link:label>
    <link:label id="lab_pnm_FuelAndPurchasedPowerAdjustmentClauseMember_documentation_en-US" xlink:label="lab_pnm_FuelAndPurchasedPowerAdjustmentClauseMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fuel and Purchased Power Adjustment Clause [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FuelAndPurchasedPowerAdjustmentClauseMember" xlink:href="pnm-20230331.xsd#pnm_FuelAndPurchasedPowerAdjustmentClauseMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FuelAndPurchasedPowerAdjustmentClauseMember" xlink:to="lab_pnm_FuelAndPurchasedPowerAdjustmentClauseMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_JointlyOwnedGeneratingFacilitiesAxis_dae1b2c4-aa3f-41a6-a047-79fc6775c263_terseLabel_en-US" xlink:label="lab_pnm_JointlyOwnedGeneratingFacilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Jointly-Owned Generating Facilities [Axis]</link:label>
    <link:label id="lab_pnm_JointlyOwnedGeneratingFacilitiesAxis_label_en-US" xlink:label="lab_pnm_JointlyOwnedGeneratingFacilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Jointly-Owned Generating Facilities [Axis]</link:label>
    <link:label id="lab_pnm_JointlyOwnedGeneratingFacilitiesAxis_documentation_en-US" xlink:label="lab_pnm_JointlyOwnedGeneratingFacilitiesAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Jointly-Owned Generating Facilities [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_JointlyOwnedGeneratingFacilitiesAxis" xlink:href="pnm-20230331.xsd#pnm_JointlyOwnedGeneratingFacilitiesAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_JointlyOwnedGeneratingFacilitiesAxis" xlink:to="lab_pnm_JointlyOwnedGeneratingFacilitiesAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_50f44933-6d02-45b3-bfe4-b3712750f69c_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash Flows From Investing Activities:</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeasedAssetsLineItems_f62adcd8-4cfd-4636-8ab7-173f84f01747_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasedAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Leased Assets [Line Items]</link:label>
    <link:label id="lab_us-gaap_OperatingLeasedAssetsLineItems_label_en-US" xlink:label="lab_us-gaap_OperatingLeasedAssetsLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Leased Assets [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeasedAssetsLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeasedAssetsLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasedAssetsLineItems" xlink:to="lab_us-gaap_OperatingLeasedAssetsLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_b0130a50-58cf-4406-a2ea-512a4ad82a6e_terseLabel_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:label id="lab_dei_EntityCommonStockSharesOutstanding_label_en-US" xlink:label="lab_dei_EntityCommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Common Stock, Shares Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCommonStockSharesOutstanding" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityCommonStockSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCommonStockSharesOutstanding" xlink:to="lab_dei_EntityCommonStockSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FinalPaymentForReliefFromObligations_cec9354e-660a-4a2b-9ec5-38b5ea922f1a_terseLabel_en-US" xlink:label="lab_pnm_FinalPaymentForReliefFromObligations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Final payment for relief from obligations</link:label>
    <link:label id="lab_pnm_FinalPaymentForReliefFromObligations_label_en-US" xlink:label="lab_pnm_FinalPaymentForReliefFromObligations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Final Payment For Relief From Obligations</link:label>
    <link:label id="lab_pnm_FinalPaymentForReliefFromObligations_documentation_en-US" xlink:label="lab_pnm_FinalPaymentForReliefFromObligations" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Final Payment For Relief From Obligations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FinalPaymentForReliefFromObligations" xlink:href="pnm-20230331.xsd#pnm_FinalPaymentForReliefFromObligations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FinalPaymentForReliefFromObligations" xlink:to="lab_pnm_FinalPaymentForReliefFromObligations" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_b6b7e720-fe86-459c-850f-8896456193b5_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Hierarchy and NAV [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Hierarchy and NAV [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="lab_us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RevolvingCreditFacilityMember_2121824e-af32-466e-81c2-81007a4d4e1b_terseLabel_en-US" xlink:label="lab_us-gaap_RevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revolving credit facility</link:label>
    <link:label id="lab_us-gaap_RevolvingCreditFacilityMember_label_en-US" xlink:label="lab_us-gaap_RevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revolving Credit Facility [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevolvingCreditFacilityMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevolvingCreditFacilityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevolvingCreditFacilityMember" xlink:to="lab_us-gaap_RevolvingCreditFacilityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_VariableRateDebtTranche1Member_9eba9167-272c-4846-a976-806f957e6202_terseLabel_en-US" xlink:label="lab_pnm_VariableRateDebtTranche1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt, Tranche 1</link:label>
    <link:label id="lab_pnm_VariableRateDebtTranche1Member_label_en-US" xlink:label="lab_pnm_VariableRateDebtTranche1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt, Tranche 1 [Member]</link:label>
    <link:label id="lab_pnm_VariableRateDebtTranche1Member_documentation_en-US" xlink:label="lab_pnm_VariableRateDebtTranche1Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt, Tranche 1</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_VariableRateDebtTranche1Member" xlink:href="pnm-20230331.xsd#pnm_VariableRateDebtTranche1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_VariableRateDebtTranche1Member" xlink:to="lab_pnm_VariableRateDebtTranche1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_77016835-9582-4994-b4dc-82422ce26191_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unrealized Gains on Available-for-Sale Securities</link:label>
    <link:label id="lab_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember_label_en-US" xlink:label="lab_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xlink:to="lab_us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentType_e5d0d78e-25da-476b-925e-5325381c78b0_terseLabel_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Type</link:label>
    <link:label id="lab_dei_DocumentType_label_en-US" xlink:label="lab_dei_DocumentType" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentType" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentType"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentType" xlink:to="lab_dei_DocumentType" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_InterestChargesMember_1dbe5329-ee05-4bb1-8b47-a1af93abad22_terseLabel_en-US" xlink:label="lab_pnm_InterestChargesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest billings:</link:label>
    <link:label id="lab_pnm_InterestChargesMember_label_en-US" xlink:label="lab_pnm_InterestChargesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest Charges [Member]</link:label>
    <link:label id="lab_pnm_InterestChargesMember_documentation_en-US" xlink:label="lab_pnm_InterestChargesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest Charges [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_InterestChargesMember" xlink:href="pnm-20230331.xsd#pnm_InterestChargesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_InterestChargesMember" xlink:to="lab_pnm_InterestChargesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_da6ea6ae-c7a7-4e1b-a6a7-97c6e7676d4b_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Components of Net Periodic Benefit Cost</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:to="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCostAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TypeOfRegulatoryCostDomain_8af3c89b-4067-4e13-8db5-8a9a49d2f85a_terseLabel_en-US" xlink:label="lab_pnm_TypeOfRegulatoryCostDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Type Of Regulatory Cost [Domain]</link:label>
    <link:label id="lab_pnm_TypeOfRegulatoryCostDomain_label_en-US" xlink:label="lab_pnm_TypeOfRegulatoryCostDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Type Of Regulatory Cost [Domain]</link:label>
    <link:label id="lab_pnm_TypeOfRegulatoryCostDomain_documentation_en-US" xlink:label="lab_pnm_TypeOfRegulatoryCostDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Type Of Regulatory Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TypeOfRegulatoryCostDomain" xlink:href="pnm-20230331.xsd#pnm_TypeOfRegulatoryCostDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_TypeOfRegulatoryCostDomain" xlink:to="lab_pnm_TypeOfRegulatoryCostDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SeveranceCosts1_dd4a1284-8a06-40b4-bef1-dd414b74a404_terseLabel_en-US" xlink:label="lab_us-gaap_SeveranceCosts1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Severance costs</link:label>
    <link:label id="lab_us-gaap_SeveranceCosts1_label_en-US" xlink:label="lab_us-gaap_SeveranceCosts1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Severance Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeveranceCosts1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SeveranceCosts1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SeveranceCosts1" xlink:to="lab_us-gaap_SeveranceCosts1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_4726898d-0a9d-49bc-a3c9-094b4b0d3c28_periodStartLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Outstanding at beginning of period (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_15b4b503-90f6-4edb-9b4d-30ff5aa81a93_periodEndLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Outstanding at end of period (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_187b6f7c-3e1d-4e22-bbf9-3ee2211f4832_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financing</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability, to be Paid [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract" xlink:to="lab_us-gaap_FinanceLeaseLiabilitiesPaymentsDueAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_6719ae35-5cea-42bc-8d0a-b8dff02dbee7_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred income tax expense</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxExpenseBenefit_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:to="lab_us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesMaximumPotentialAssessmentPerIncident_88f43dfc-145b-4149-b062-d078b62a0a61_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesMaximumPotentialAssessmentPerIncident" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maximum potential assessment per incident</link:label>
    <link:label id="lab_pnm_PublicUtilitiesMaximumPotentialAssessmentPerIncident_label_en-US" xlink:label="lab_pnm_PublicUtilitiesMaximumPotentialAssessmentPerIncident" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Maximum Potential Assessment Per Incident</link:label>
    <link:label id="lab_pnm_PublicUtilitiesMaximumPotentialAssessmentPerIncident_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesMaximumPotentialAssessmentPerIncident" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Maximum Potential Assessment Per Incident</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesMaximumPotentialAssessmentPerIncident" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesMaximumPotentialAssessmentPerIncident"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesMaximumPotentialAssessmentPerIncident" xlink:to="lab_pnm_PublicUtilitiesMaximumPotentialAssessmentPerIncident" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfRecommendations_b4b2e041-3703-4f39-a692-e79aac3d2274_terseLabel_en-US" xlink:label="lab_pnm_NumberOfRecommendations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of recommendations</link:label>
    <link:label id="lab_pnm_NumberOfRecommendations_label_en-US" xlink:label="lab_pnm_NumberOfRecommendations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Recommendations</link:label>
    <link:label id="lab_pnm_NumberOfRecommendations_documentation_en-US" xlink:label="lab_pnm_NumberOfRecommendations" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Recommendations</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfRecommendations" xlink:href="pnm-20230331.xsd#pnm_NumberOfRecommendations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfRecommendations" xlink:to="lab_pnm_NumberOfRecommendations" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_OtherReceivablesAllowanceForCreditLossPeriodIncreaseDecrease_0dcfe4f2-309b-4581-a037-f9d5d6d80ad1_terseLabel_en-US" xlink:label="lab_pnm_OtherReceivablesAllowanceForCreditLossPeriodIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other receivables, allowance for credit loss, period increase</link:label>
    <link:label id="lab_pnm_OtherReceivablesAllowanceForCreditLossPeriodIncreaseDecrease_label_en-US" xlink:label="lab_pnm_OtherReceivablesAllowanceForCreditLossPeriodIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Receivables, Allowance For Credit Loss, Period Increase (Decrease)</link:label>
    <link:label id="lab_pnm_OtherReceivablesAllowanceForCreditLossPeriodIncreaseDecrease_documentation_en-US" xlink:label="lab_pnm_OtherReceivablesAllowanceForCreditLossPeriodIncreaseDecrease" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Receivables, Allowance For Credit Loss, Period Increase (Decrease)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_OtherReceivablesAllowanceForCreditLossPeriodIncreaseDecrease" xlink:href="pnm-20230331.xsd#pnm_OtherReceivablesAllowanceForCreditLossPeriodIncreaseDecrease"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_OtherReceivablesAllowanceForCreditLossPeriodIncreaseDecrease" xlink:to="lab_pnm_OtherReceivablesAllowanceForCreditLossPeriodIncreaseDecrease" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable_f5df0a18-134e-4e0e-a515-360591a7ebfb_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase reimbursements</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Insurance Settlements Receivable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable" xlink:to="lab_us-gaap_IncreaseDecreaseInInsuranceSettlementsReceivable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtDisclosureAbstract_dac2fc14-6823-4854-bcb1-20f1352b80ec_terseLabel_en-US" xlink:label="lab_us-gaap_DebtDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Disclosure [Abstract]</link:label>
    <link:label id="lab_us-gaap_DebtDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Disclosure [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtDisclosureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtDisclosureAbstract" xlink:to="lab_us-gaap_DebtDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DefinedBenefitPlanContributionsByEmployer_9636a2ee-b435-4e4c-8cc1-4f4832c03018_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanContributionsByEmployer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contributions by employer</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanContributionsByEmployer_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanContributionsByEmployer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Defined Benefit Plan, Plan Assets, Contributions by Employer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanContributionsByEmployer" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanContributionsByEmployer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanContributionsByEmployer" xlink:to="lab_us-gaap_DefinedBenefitPlanContributionsByEmployer" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UnsecuredDebtMember_aebc6f99-7d6b-4299-9049-62f87e10f561_terseLabel_en-US" xlink:label="lab_us-gaap_UnsecuredDebtMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unsecured Debt</link:label>
    <link:label id="lab_us-gaap_UnsecuredDebtMember_label_en-US" xlink:label="lab_us-gaap_UnsecuredDebtMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unsecured Debt [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredDebtMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UnsecuredDebtMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnsecuredDebtMember" xlink:to="lab_us-gaap_UnsecuredDebtMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_AEPOnSitePartnersMember_5b1bb80e-45b5-4fb1-b0f8-5f67bc95bae1_terseLabel_en-US" xlink:label="lab_pnm_AEPOnSitePartnersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">AEP OnSite Partners</link:label>
    <link:label id="lab_pnm_AEPOnSitePartnersMember_label_en-US" xlink:label="lab_pnm_AEPOnSitePartnersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">AEP OnSite Partners [Member]</link:label>
    <link:label id="lab_pnm_AEPOnSitePartnersMember_documentation_en-US" xlink:label="lab_pnm_AEPOnSitePartnersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">AEP OnSite Partners</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_AEPOnSitePartnersMember" xlink:href="pnm-20230331.xsd#pnm_AEPOnSitePartnersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_AEPOnSitePartnersMember" xlink:to="lab_pnm_AEPOnSitePartnersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermDebtCurrent_eb2fb108-e952-44cc-b7ad-4bfcd8c5697d_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermDebtCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current installments of long-term debt</link:label>
    <link:label id="lab_us-gaap_LongTermDebtCurrent_label_en-US" xlink:label="lab_us-gaap_LongTermDebtCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-Term Debt, Current Maturities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermDebtCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermDebtCurrent" xlink:to="lab_us-gaap_LongTermDebtCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_e90dadc8-7a98-40f5-8a0a-ea002c05f486_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net cash flows from financing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:type="arc" order="1"/>
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    <link:label id="lab_us-gaap_MunicipalBondsMember_29ef73e2-bfa2-440a-8623-e87e43804793_terseLabel_en-US" xlink:label="lab_us-gaap_MunicipalBondsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Municipals</link:label>
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    <link:label id="lab_pnm_AchievedSpecifiedPerformanceTargetTimeFrameDomain_f4f3f4e7-3e4d-4897-a3ef-18383116bdf0_terseLabel_en-US" xlink:label="lab_pnm_AchievedSpecifiedPerformanceTargetTimeFrameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Achieved Specified Performance Target Time Frame [Domain]</link:label>
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    <link:label id="lab_pnm_AchievedSpecifiedPerformanceTargetTimeFrameDomain_documentation_en-US" xlink:label="lab_pnm_AchievedSpecifiedPerformanceTargetTimeFrameDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Achieved Specified Performance Target Time Frame</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_AchievedSpecifiedPerformanceTargetTimeFrameDomain" xlink:href="pnm-20230331.xsd#pnm_AchievedSpecifiedPerformanceTargetTimeFrameDomain"/>
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    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_7975404e-3734-4e87-b71d-d4d1c9258120_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other OCI changes (pre-tax)</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), before Reclassifications, Net of Tax</link:label>
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    <link:label id="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock_aaaba584-c7f5-4784-9d33-7c2e2d19342a_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByBalanceSheetGroupingTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Carrying Amount and Fair Value of Items Not Recorded at Fair Value</link:label>
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    <link:label id="lab_us-gaap_DerivativeContractTypeDomain_df339df3-f1be-458a-bf87-e67c6a3efcc9_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeContractTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative Contract [Domain]</link:label>
    <link:label id="lab_us-gaap_DerivativeContractTypeDomain_label_en-US" xlink:label="lab_us-gaap_DerivativeContractTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative Contract [Domain]</link:label>
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    <link:label id="lab_us-gaap_GrossProfit_592d0153-636a-4629-a648-6a4e4fe14981_totalLabel_en-US" xlink:label="lab_us-gaap_GrossProfit" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Utility margin</link:label>
    <link:label id="lab_us-gaap_GrossProfit_4eb969ea-c7f8-4282-8b92-577128bb81ef_terseLabel_en-US" xlink:label="lab_us-gaap_GrossProfit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gross margin</link:label>
    <link:label id="lab_us-gaap_GrossProfit_label_en-US" xlink:label="lab_us-gaap_GrossProfit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gross Profit</link:label>
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    <link:label id="lab_dei_EntityRegistrantName_45bf0c63-5a1e-4a16-b5d6-a90aafe47dc5_terseLabel_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:label id="lab_dei_EntityRegistrantName_label_en-US" xlink:label="lab_dei_EntityRegistrantName" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Registrant Name</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityRegistrantName" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityRegistrantName"/>
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    <link:label id="lab_pnm_PortfolioOneMember_42d07fb7-40b8-4fd3-9e23-72218e755ff0_terseLabel_en-US" xlink:label="lab_pnm_PortfolioOneMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portfolio One</link:label>
    <link:label id="lab_pnm_PortfolioOneMember_label_en-US" xlink:label="lab_pnm_PortfolioOneMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portfolio One [Member]</link:label>
    <link:label id="lab_pnm_PortfolioOneMember_documentation_en-US" xlink:label="lab_pnm_PortfolioOneMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portfolio One</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PortfolioOneMember" xlink:to="lab_pnm_PortfolioOneMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesRevenueDeficiencyDriverYearsOfOperation_06685fb3-1660-48d8-90aa-92ce9d1006c0_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesRevenueDeficiencyDriverYearsOfOperation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue deficiency driver, years of operation</link:label>
    <link:label id="lab_pnm_PublicUtilitiesRevenueDeficiencyDriverYearsOfOperation_label_en-US" xlink:label="lab_pnm_PublicUtilitiesRevenueDeficiencyDriverYearsOfOperation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Revenue Deficiency Driver, Years Of Operation</link:label>
    <link:label id="lab_pnm_PublicUtilitiesRevenueDeficiencyDriverYearsOfOperation_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesRevenueDeficiencyDriverYearsOfOperation" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Revenue Deficiency Driver, Years Of Operation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesRevenueDeficiencyDriverYearsOfOperation" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesRevenueDeficiencyDriverYearsOfOperation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesRevenueDeficiencyDriverYearsOfOperation" xlink:to="lab_pnm_PublicUtilitiesRevenueDeficiencyDriverYearsOfOperation" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_DefinedBenefitPlanPlanAssetsDisbursementsByEmployer_68887f06-df5b-4306-8d0b-2f173cf3b402_terseLabel_en-US" xlink:label="lab_pnm_DefinedBenefitPlanPlanAssetsDisbursementsByEmployer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disbursements by employer</link:label>
    <link:label id="lab_pnm_DefinedBenefitPlanPlanAssetsDisbursementsByEmployer_label_en-US" xlink:label="lab_pnm_DefinedBenefitPlanPlanAssetsDisbursementsByEmployer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Defined Benefit Plan, Plan Assets, Disbursements By Employer</link:label>
    <link:label id="lab_pnm_DefinedBenefitPlanPlanAssetsDisbursementsByEmployer_documentation_en-US" xlink:label="lab_pnm_DefinedBenefitPlanPlanAssetsDisbursementsByEmployer" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Defined Benefit Plan, Plan Assets, Disbursements By Employer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_DefinedBenefitPlanPlanAssetsDisbursementsByEmployer" xlink:href="pnm-20230331.xsd#pnm_DefinedBenefitPlanPlanAssetsDisbursementsByEmployer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_DefinedBenefitPlanPlanAssetsDisbursementsByEmployer" xlink:to="lab_pnm_DefinedBenefitPlanPlanAssetsDisbursementsByEmployer" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_AvangridMember_c3388f54-bd3b-410e-8cfa-ca2bd45412ee_terseLabel_en-US" xlink:label="lab_pnm_AvangridMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Avangrid</link:label>
    <link:label id="lab_pnm_AvangridMember_label_en-US" xlink:label="lab_pnm_AvangridMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Avangrid [Member]</link:label>
    <link:label id="lab_pnm_AvangridMember_documentation_en-US" xlink:label="lab_pnm_AvangridMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Avangrid</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_AvangridMember" xlink:href="pnm-20230331.xsd#pnm_AvangridMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_AvangridMember" xlink:to="lab_pnm_AvangridMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesAllowedReturnOnEquityAdditional_62a2810c-5bf9-424d-bbee-3a62791d32c9_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesAllowedReturnOnEquityAdditional" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Allowed return on equity, additional</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAllowedReturnOnEquityAdditional_label_en-US" xlink:label="lab_pnm_PublicUtilitiesAllowedReturnOnEquityAdditional" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Allowed Return On Equity, Additional</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAllowedReturnOnEquityAdditional_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesAllowedReturnOnEquityAdditional" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Allowed Return On Equity, Additional</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesAllowedReturnOnEquityAdditional" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesAllowedReturnOnEquityAdditional"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesAllowedReturnOnEquityAdditional" xlink:to="lab_pnm_PublicUtilitiesAllowedReturnOnEquityAdditional" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesRenewableEnergyPercentage_76dd63a0-1fc4-43c8-9c5e-1a8548f3e12f_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesRenewableEnergyPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Renewable energy, percentage</link:label>
    <link:label id="lab_pnm_PublicUtilitiesRenewableEnergyPercentage_label_en-US" xlink:label="lab_pnm_PublicUtilitiesRenewableEnergyPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Renewable Energy, Percentage</link:label>
    <link:label id="lab_pnm_PublicUtilitiesRenewableEnergyPercentage_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesRenewableEnergyPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Renewable Energy, Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesRenewableEnergyPercentage" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesRenewableEnergyPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesRenewableEnergyPercentage" xlink:to="lab_pnm_PublicUtilitiesRenewableEnergyPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LossContingencyDecreaseInDecommissioningObligation_cc030801-56bc-4309-bfa3-4ff885372d4f_terseLabel_en-US" xlink:label="lab_pnm_LossContingencyDecreaseInDecommissioningObligation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Decrease in decommissioning obligation</link:label>
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    <link:label id="lab_pnm_LossContingencyDecreaseInDecommissioningObligation_documentation_en-US" xlink:label="lab_pnm_LossContingencyDecreaseInDecommissioningObligation" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingency, Decrease In Decommissioning Obligation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LossContingencyDecreaseInDecommissioningObligation" xlink:href="pnm-20230331.xsd#pnm_LossContingencyDecreaseInDecommissioningObligation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LossContingencyDecreaseInDecommissioningObligation" xlink:to="lab_pnm_LossContingencyDecreaseInDecommissioningObligation" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TransmissionAndDistributionCosts_7019362a-99c2-4e3e-9730-94b04d11a396_terseLabel_en-US" xlink:label="lab_pnm_TransmissionAndDistributionCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Transmission and distribution costs</link:label>
    <link:label id="lab_pnm_TransmissionAndDistributionCosts_label_en-US" xlink:label="lab_pnm_TransmissionAndDistributionCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Transmission And Distribution Costs</link:label>
    <link:label id="lab_pnm_TransmissionAndDistributionCosts_documentation_en-US" xlink:label="lab_pnm_TransmissionAndDistributionCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Costs incurred for transmission and distribution of electricity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TransmissionAndDistributionCosts" xlink:href="pnm-20230331.xsd#pnm_TransmissionAndDistributionCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_TransmissionAndDistributionCosts" xlink:to="lab_pnm_TransmissionAndDistributionCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_c0ee255d-1083-4afc-9082-e6c05d01dec9_terseLabel_en-US" xlink:label="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pension and Other Postretirement Benefit Plans</link:label>
    <link:label id="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retirement Benefits [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:to="lab_us-gaap_PensionAndOtherPostretirementBenefitsDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesAllowedReturnOnEquity_d5d5119d-f92f-4d8f-8397-209bd21353b9_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesAllowedReturnOnEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Allowed return on equity</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAllowedReturnOnEquity_label_en-US" xlink:label="lab_pnm_PublicUtilitiesAllowedReturnOnEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Allowed Return On Equity</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAllowedReturnOnEquity_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesAllowedReturnOnEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Allowed Return On Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesAllowedReturnOnEquity" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesAllowedReturnOnEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesAllowedReturnOnEquity" xlink:to="lab_pnm_PublicUtilitiesAllowedReturnOnEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LeasesAbstract_e849af5f-f437-4573-a0c4-0b711dfd64d7_terseLabel_en-US" xlink:label="lab_us-gaap_LeasesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leases [Abstract]</link:label>
    <link:label id="lab_us-gaap_LeasesAbstract_label_en-US" xlink:label="lab_us-gaap_LeasesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leases [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeasesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeasesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LeasesAbstract" xlink:to="lab_us-gaap_LeasesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_1906ab6f-f97f-4346-bab5-ea77469c8ebf_totalLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total equity</link:label>
    <link:label id="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_16150fc3-c3bd-4828-9740-950eea78c50d_periodStartLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Beginning balance</link:label>
    <link:label id="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_3f224797-663d-4670-8d2f-292a0b4a3cdd_periodEndLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Ending balance</link:label>
    <link:label id="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_label_en-US" xlink:label="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:to="lab_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ConsolidationPolicyTextBlock_9a7b6af6-0e57-47dd-a7ad-59f2dde6ab37_terseLabel_en-US" xlink:label="lab_us-gaap_ConsolidationPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Principles of Consolidation</link:label>
    <link:label id="lab_us-gaap_ConsolidationPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_ConsolidationPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Consolidation, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ConsolidationPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ConsolidationPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ConsolidationPolicyTextBlock" xlink:to="lab_us-gaap_ConsolidationPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RevenueNotFromContractWithCustomer_d5aec45f-c88e-4772-97a5-cc4edfe576c4_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueNotFromContractWithCustomer" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Alternative revenue programs</link:label>
    <link:label id="lab_us-gaap_RevenueNotFromContractWithCustomer_label_en-US" xlink:label="lab_us-gaap_RevenueNotFromContractWithCustomer" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue Not from Contract with Customer</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomer" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueNotFromContractWithCustomer"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueNotFromContractWithCustomer" xlink:to="lab_us-gaap_RevenueNotFromContractWithCustomer" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_MinimumMember_cedd32c7-2670-448b-8f51-729a83cabdce_terseLabel_en-US" xlink:label="lab_srt_MinimumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Minimum</link:label>
    <link:label id="lab_srt_MinimumMember_label_en-US" xlink:label="lab_srt_MinimumMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Minimum [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_MinimumMember" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_MinimumMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_MinimumMember" xlink:to="lab_srt_MinimumMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CustomerReclamationFundingCostMaximum_fb62ad72-ae26-4969-8fe4-e05efc7885c7_terseLabel_en-US" xlink:label="lab_pnm_CustomerReclamationFundingCostMaximum" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Customer reclamation funding cost</link:label>
    <link:label id="lab_pnm_CustomerReclamationFundingCostMaximum_label_en-US" xlink:label="lab_pnm_CustomerReclamationFundingCostMaximum" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Customer Reclamation Funding Cost, Maximum</link:label>
    <link:label id="lab_pnm_CustomerReclamationFundingCostMaximum_documentation_en-US" xlink:label="lab_pnm_CustomerReclamationFundingCostMaximum" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Customer Reclamation Funding Cost, Maximum</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CustomerReclamationFundingCostMaximum" xlink:href="pnm-20230331.xsd#pnm_CustomerReclamationFundingCostMaximum"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CustomerReclamationFundingCostMaximum" xlink:to="lab_pnm_CustomerReclamationFundingCostMaximum" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CleanAirActRelatedToRegionalHazeMember_2bbcfe03-6d9e-4884-add5-169392e4438f_terseLabel_en-US" xlink:label="lab_pnm_CleanAirActRelatedToRegionalHazeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Clean Air Act related to regional haze</link:label>
    <link:label id="lab_pnm_CleanAirActRelatedToRegionalHazeMember_label_en-US" xlink:label="lab_pnm_CleanAirActRelatedToRegionalHazeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Clean Air Act Related To Regional Haze [Member]</link:label>
    <link:label id="lab_pnm_CleanAirActRelatedToRegionalHazeMember_documentation_en-US" xlink:label="lab_pnm_CleanAirActRelatedToRegionalHazeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Clean Air Act related to Regional Haze [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CleanAirActRelatedToRegionalHazeMember" xlink:href="pnm-20230331.xsd#pnm_CleanAirActRelatedToRegionalHazeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CleanAirActRelatedToRegionalHazeMember" xlink:to="lab_pnm_CleanAirActRelatedToRegionalHazeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_b5bcfc7a-915c-4ba3-a042-3cc199351d9a_terseLabel_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:label id="lab_dei_EntityEmergingGrowthCompany_label_en-US" xlink:label="lab_dei_EntityEmergingGrowthCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Emerging Growth Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityEmergingGrowthCompany" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityEmergingGrowthCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityEmergingGrowthCompany" xlink:to="lab_dei_EntityEmergingGrowthCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_37b3c209-4d6d-4d3a-bc59-eaf0d952f4e4_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock, par value (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_CommonStockParOrStatedValuePerShare_label_en-US" xlink:label="lab_us-gaap_CommonStockParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock, Par or Stated Value Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockParOrStatedValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockParOrStatedValuePerShare" xlink:to="lab_us-gaap_CommonStockParOrStatedValuePerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LossContingencySuretyBond_a418a65a-478d-4c78-a2fd-e2507b9fd29f_terseLabel_en-US" xlink:label="lab_pnm_LossContingencySuretyBond" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Surety bond</link:label>
    <link:label id="lab_pnm_LossContingencySuretyBond_label_en-US" xlink:label="lab_pnm_LossContingencySuretyBond" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingency, Surety Bond</link:label>
    <link:label id="lab_pnm_LossContingencySuretyBond_documentation_en-US" xlink:label="lab_pnm_LossContingencySuretyBond" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingency, Surety Bond</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LossContingencySuretyBond" xlink:href="pnm-20230331.xsd#pnm_LossContingencySuretyBond"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LossContingencySuretyBond" xlink:to="lab_pnm_LossContingencySuretyBond" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_c20e6e70-5b4b-4b6d-b8ee-b924b9c45f11_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in fair market value, net of income tax (expense) of $43 and $0</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossBeforeReclassificationAfterTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax_754f3243-106c-4cb4-82ae-ae47b1c302dd_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income tax impact of other OCI changes</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss) before Reclassifications, Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract_fc523494-3e30-4a91-9569-9882d385df32_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commitments and Contingencies Disclosure [Abstract]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:to="lab_us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_553b9e56-06ad-4e92-b838-b9f3617d354e_terseLabel_en-US" xlink:label="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment, Name [Axis]</link:label>
    <link:label id="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis_label_en-US" xlink:label="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment, Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:to="lab_srt_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsOfDividendsMinorityInterest_61fc2d69-e8bb-4dff-9576-6c92d7c444cb_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfDividendsMinorityInterest" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Valencia&#8217;s transactions with its owner</link:label>
    <link:label id="lab_us-gaap_PaymentsOfDividendsMinorityInterest_label_en-US" xlink:label="lab_us-gaap_PaymentsOfDividendsMinorityInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments of Ordinary Dividends, Noncontrolling Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsMinorityInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsOfDividendsMinorityInterest"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsOfDividendsMinorityInterest" xlink:to="lab_us-gaap_PaymentsOfDividendsMinorityInterest" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_TradingSymbol_078dd642-9ffe-4830-9c4c-a46cccaedccf_terseLabel_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trading Symbol</link:label>
    <link:label id="lab_dei_TradingSymbol_label_en-US" xlink:label="lab_dei_TradingSymbol" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Trading Symbol</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_TradingSymbol" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_TradingSymbol"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_TradingSymbol" xlink:to="lab_dei_TradingSymbol" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityFileNumber_71e3134c-7e0c-45d8-b98b-e2fad7cbf23a_terseLabel_en-US" xlink:label="lab_dei_EntityFileNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity File Number</link:label>
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    <link:label id="lab_pnm_FirstMortgageBondsDue2019Series2009Aat9point50percentMember_14028900-fd9e-45cc-b386-c3f635fbe591_terseLabel_en-US" xlink:label="lab_pnm_FirstMortgageBondsDue2019Series2009Aat9point50percentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">First mortgage bonds</link:label>
    <link:label id="lab_pnm_FirstMortgageBondsDue2019Series2009Aat9point50percentMember_label_en-US" xlink:label="lab_pnm_FirstMortgageBondsDue2019Series2009Aat9point50percentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">First Mortgage Bonds Due 2019, Series 2009A, at 9 point 50 percent [Member]</link:label>
    <link:label id="lab_pnm_FirstMortgageBondsDue2019Series2009Aat9point50percentMember_documentation_en-US" xlink:label="lab_pnm_FirstMortgageBondsDue2019Series2009Aat9point50percentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">First Mortgage Bonds Due 2019, Series 2009A, at 9 point 50 percent [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FirstMortgageBondsDue2019Series2009Aat9point50percentMember" xlink:href="pnm-20230331.xsd#pnm_FirstMortgageBondsDue2019Series2009Aat9point50percentMember"/>
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    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_1003b7ff-0121-4c91-a6e7-017b96a4a81e_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Line Items]</link:label>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Line Items]</link:label>
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    <link:label id="lab_us-gaap_PublicUtilitiesRegulatoryProceedingDomain_b71bed32-b30b-4fed-9849-05264bc836c6_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRegulatoryProceedingDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Regulatory Proceeding [Domain]</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesRegulatoryProceedingDomain_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesRegulatoryProceedingDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Regulatory Proceeding [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesRegulatoryProceedingDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesRegulatoryProceedingDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesRegulatoryProceedingDomain" xlink:to="lab_us-gaap_PublicUtilitiesRegulatoryProceedingDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TypeOfRegulatoryCostAxis_4d2deffb-469c-4e63-a46c-a918dea1a7af_terseLabel_en-US" xlink:label="lab_pnm_TypeOfRegulatoryCostAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Type Of Regulatory Cost [Axis]</link:label>
    <link:label id="lab_pnm_TypeOfRegulatoryCostAxis_label_en-US" xlink:label="lab_pnm_TypeOfRegulatoryCostAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Type Of Regulatory Cost [Axis]</link:label>
    <link:label id="lab_pnm_TypeOfRegulatoryCostAxis_documentation_en-US" xlink:label="lab_pnm_TypeOfRegulatoryCostAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Type Of Regulatory Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TypeOfRegulatoryCostAxis" xlink:href="pnm-20230331.xsd#pnm_TypeOfRegulatoryCostAxis"/>
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    <link:label id="lab_pnm_RelatedPartyTransactionByTransactionTypeDomain_fe11d7ff-5175-44f9-aff8-d635b2d68204_terseLabel_en-US" xlink:label="lab_pnm_RelatedPartyTransactionByTransactionTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction, by Transaction Type [Domain]</link:label>
    <link:label id="lab_pnm_RelatedPartyTransactionByTransactionTypeDomain_label_en-US" xlink:label="lab_pnm_RelatedPartyTransactionByTransactionTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction, by Transaction Type [Domain]</link:label>
    <link:label id="lab_pnm_RelatedPartyTransactionByTransactionTypeDomain_documentation_en-US" xlink:label="lab_pnm_RelatedPartyTransactionByTransactionTypeDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction, by Transaction Type [Domain]</link:label>
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    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_8ba4a55b-c8d1-41b2-ac9c-d7c459d357ad_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Comprehensive (Income) Attributable to Valencia Non-controlling Interest</link:label>
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest_label_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest"/>
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    <link:label id="lab_pnm_PublicUtilitiesPotentialLossOnRateChange_6729fcdd-723c-4396-8881-47c991d0a496_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesPotentialLossOnRateChange" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Potential loss on rate change</link:label>
    <link:label id="lab_pnm_PublicUtilitiesPotentialLossOnRateChange_label_en-US" xlink:label="lab_pnm_PublicUtilitiesPotentialLossOnRateChange" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Potential Loss On Rate Change</link:label>
    <link:label id="lab_pnm_PublicUtilitiesPotentialLossOnRateChange_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesPotentialLossOnRateChange" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Potential Loss On Rate Change</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesPotentialLossOnRateChange" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesPotentialLossOnRateChange"/>
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    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRate_4590967f-75e3-4ced-94a3-317ed7ec35e5_terseLabel_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Vesting rate</link:label>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRate_label_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Vesting Rate</link:label>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRate_documentation_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Vesting Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRate" xlink:href="pnm-20230331.xsd#pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRate" xlink:to="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingRate" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_TitleOfIndividualAxis_0c28098e-cc22-43e8-abdf-bb34de7a33a3_terseLabel_en-US" xlink:label="lab_srt_TitleOfIndividualAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of Individual [Axis]</link:label>
    <link:label id="lab_srt_TitleOfIndividualAxis_label_en-US" xlink:label="lab_srt_TitleOfIndividualAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of Individual [Axis]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_TitleOfIndividualAxis" xlink:to="lab_srt_TitleOfIndividualAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod_ab219b3d-5bb0-4db4-a52c-9e59e42dac8d_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Granted (in shares)</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod"/>
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    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperations_43602d4d-553f-443e-927a-2f9526c31985_terseLabel_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Effective tax rate</link:label>
    <link:label id="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperations_label_en-US" xlink:label="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Effective Income Tax Rate Reconciliation, Percent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EffectiveIncomeTaxRateContinuingOperations"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:to="lab_us-gaap_EffectiveIncomeTaxRateContinuingOperations" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DueFromRelatedPartiesCurrent_182e301c-83fd-456b-b83b-b499d53980cb_verboseLabel_en-US" xlink:label="lab_us-gaap_DueFromRelatedPartiesCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Affiliate receivables</link:label>
    <link:label id="lab_us-gaap_DueFromRelatedPartiesCurrent_fb568b42-fe94-4a9e-bd63-f7aca9e9af4f_terseLabel_en-US" xlink:label="lab_us-gaap_DueFromRelatedPartiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Due from Related Parties, Current</link:label>
    <link:label id="lab_us-gaap_DueFromRelatedPartiesCurrent_label_en-US" xlink:label="lab_us-gaap_DueFromRelatedPartiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Due from Related Parties, Current</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DueFromRelatedPartiesCurrent" xlink:to="lab_us-gaap_DueFromRelatedPartiesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessCombinationDisclosureTextBlock_996f6938-91f6-4fd8-8c6a-4b2025d4bd06_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessCombinationDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Merger</link:label>
    <link:label id="lab_us-gaap_BusinessCombinationDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Combination Disclosure [Text Block]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationDisclosureTextBlock" xlink:to="lab_us-gaap_BusinessCombinationDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherNonoperatingIncomeExpenseAbstract_e03c9e35-567a-4be2-8f26-e4c558075910_terseLabel_en-US" xlink:label="lab_us-gaap_OtherNonoperatingIncomeExpenseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Income and Deductions:</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherNonoperatingIncomeExpenseAbstract" xlink:to="lab_us-gaap_OtherNonoperatingIncomeExpenseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAccountsPayable_65177ee5-7844-483a-aaa6-170b94b816d0_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAccountsPayable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts payable</link:label>
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    <link:label id="lab_pnm_FourCornersMember_58836469-43cb-4f02-90c6-23d49149cd3e_terseLabel_en-US" xlink:label="lab_pnm_FourCornersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Four Corners</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue_f14063b8-66fe-45ef-bab0-430a2cfce297_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total fair value of restricted shares that vested</link:label>
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    <link:label id="lab_pnm_NuclearDecommissioningTrustMember_a8c059fc-3ee8-44e7-8d8a-fad425a1cc69_terseLabel_en-US" xlink:label="lab_pnm_NuclearDecommissioningTrustMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Nuclear Decommissioning Trust</link:label>
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    <link:label id="lab_us-gaap_UnsecuredLongTermDebt_cb7f521e-d8f7-4060-a9e3-872e5f1e272c_terseLabel_en-US" xlink:label="lab_us-gaap_UnsecuredLongTermDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unsecured long-term debt, noncurrent</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnsecuredLongTermDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UnsecuredLongTermDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnsecuredLongTermDebt" xlink:to="lab_us-gaap_UnsecuredLongTermDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ScheduleOfRegulatoryRateMattersAxis_56f6f3b8-8376-47c6-b002-77457f58edb4_terseLabel_en-US" xlink:label="lab_pnm_ScheduleOfRegulatoryRateMattersAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Regulatory Rate Matters [Axis]</link:label>
    <link:label id="lab_pnm_ScheduleOfRegulatoryRateMattersAxis_label_en-US" xlink:label="lab_pnm_ScheduleOfRegulatoryRateMattersAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Regulatory Rate Matters [Axis]</link:label>
    <link:label id="lab_pnm_ScheduleOfRegulatoryRateMattersAxis_documentation_en-US" xlink:label="lab_pnm_ScheduleOfRegulatoryRateMattersAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Regulatory Rate Matters [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ScheduleOfRegulatoryRateMattersAxis" xlink:href="pnm-20230331.xsd#pnm_ScheduleOfRegulatoryRateMattersAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ScheduleOfRegulatoryRateMattersAxis" xlink:to="lab_pnm_ScheduleOfRegulatoryRateMattersAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FinanceLeaseLiabilityDeferredCreditsOther_8cbf0903-d89b-4f32-bf7a-306f463355dd_terseLabel_en-US" xlink:label="lab_pnm_FinanceLeaseLiabilityDeferredCreditsOther" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other deferred credits</link:label>
    <link:label id="lab_pnm_FinanceLeaseLiabilityDeferredCreditsOther_label_en-US" xlink:label="lab_pnm_FinanceLeaseLiabilityDeferredCreditsOther" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability, Deferred Credits, Other</link:label>
    <link:label id="lab_pnm_FinanceLeaseLiabilityDeferredCreditsOther_documentation_en-US" xlink:label="lab_pnm_FinanceLeaseLiabilityDeferredCreditsOther" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability, Deferred Credits, Other</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FinanceLeaseLiabilityDeferredCreditsOther" xlink:href="pnm-20230331.xsd#pnm_FinanceLeaseLiabilityDeferredCreditsOther"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FinanceLeaseLiabilityDeferredCreditsOther" xlink:to="lab_pnm_FinanceLeaseLiabilityDeferredCreditsOther" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PrepaidExpenseCurrent_1fd3b8e6-bf07-47d6-97c8-658152810c5c_terseLabel_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Prepaid assets</link:label>
    <link:label id="lab_us-gaap_PrepaidExpenseCurrent_label_en-US" xlink:label="lab_us-gaap_PrepaidExpenseCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Prepaid Expense, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PrepaidExpenseCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PrepaidExpenseCurrent" xlink:to="lab_us-gaap_PrepaidExpenseCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_OwnershipDomain_460b9a3e-f3b8-45df-aa2e-fdbbe8e33244_terseLabel_en-US" xlink:label="lab_srt_OwnershipDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Ownership [Domain]</link:label>
    <link:label id="lab_srt_OwnershipDomain_label_en-US" xlink:label="lab_srt_OwnershipDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Ownership [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_OwnershipDomain" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_OwnershipDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_OwnershipDomain" xlink:to="lab_srt_OwnershipDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ForwardContractIndexedToIssuersEquityForwardRate_15d146e3-16dd-4a10-b1d0-e06d85623c55_terseLabel_en-US" xlink:label="lab_us-gaap_ForwardContractIndexedToIssuersEquityForwardRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Forward sale agreement (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_ForwardContractIndexedToIssuersEquityForwardRate_label_en-US" xlink:label="lab_us-gaap_ForwardContractIndexedToIssuersEquityForwardRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForwardContractIndexedToIssuersEquityForwardRate" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ForwardContractIndexedToIssuersEquityForwardRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ForwardContractIndexedToIssuersEquityForwardRate" xlink:to="lab_us-gaap_ForwardContractIndexedToIssuersEquityForwardRate" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FairValueOfDerivativeAndOtherFinancialInstrumentsAbstract_a3298a8f-e1c7-4476-81ac-d1a7531526ad_terseLabel_en-US" xlink:label="lab_pnm_FairValueOfDerivativeAndOtherFinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value of Derivative and Other Financial Instruments [Abstract]</link:label>
    <link:label id="lab_pnm_FairValueOfDerivativeAndOtherFinancialInstrumentsAbstract_label_en-US" xlink:label="lab_pnm_FairValueOfDerivativeAndOtherFinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value of Derivative and Other Financial Instruments [Abstract]</link:label>
    <link:label id="lab_pnm_FairValueOfDerivativeAndOtherFinancialInstrumentsAbstract_documentation_en-US" xlink:label="lab_pnm_FairValueOfDerivativeAndOtherFinancialInstrumentsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value of Derivative and Other Financial Instruments [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FairValueOfDerivativeAndOtherFinancialInstrumentsAbstract" xlink:href="pnm-20230331.xsd#pnm_FairValueOfDerivativeAndOtherFinancialInstrumentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FairValueOfDerivativeAndOtherFinancialInstrumentsAbstract" xlink:to="lab_pnm_FairValueOfDerivativeAndOtherFinancialInstrumentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityInteractiveDataCurrent_cf84943a-b02a-4b49-ae40-48e865328e6f_terseLabel_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Interactive Data Current</link:label>
    <link:label id="lab_dei_EntityInteractiveDataCurrent_label_en-US" xlink:label="lab_dei_EntityInteractiveDataCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Interactive Data Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityInteractiveDataCurrent" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityInteractiveDataCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityInteractiveDataCurrent" xlink:to="lab_dei_EntityInteractiveDataCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_9819709b-c09a-4881-bc76-808aedad8ccd_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Changes in certain assets and liabilities:</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Operating Capital [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInOperatingCapitalAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:to="lab_us-gaap_IncreaseDecreaseInOperatingCapitalAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LesseeRightOfWayLeaseAnnualPayments_aed72db0-bdd2-4aa0-bdc8-711a816b086a_terseLabel_en-US" xlink:label="lab_pnm_LesseeRightOfWayLeaseAnnualPayments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Annual lease payments</link:label>
    <link:label id="lab_pnm_LesseeRightOfWayLeaseAnnualPayments_label_en-US" xlink:label="lab_pnm_LesseeRightOfWayLeaseAnnualPayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Right-Of-Way Lease, Annual Payments</link:label>
    <link:label id="lab_pnm_LesseeRightOfWayLeaseAnnualPayments_documentation_en-US" xlink:label="lab_pnm_LesseeRightOfWayLeaseAnnualPayments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Annual lease payments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LesseeRightOfWayLeaseAnnualPayments" xlink:href="pnm-20230331.xsd#pnm_LesseeRightOfWayLeaseAnnualPayments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LesseeRightOfWayLeaseAnnualPayments" xlink:to="lab_pnm_LesseeRightOfWayLeaseAnnualPayments" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_DeferredRegulatoryAssetIncreaseDecreaseDuringThePeriod_140ab959-b4e8-4c98-9ac1-6e4fa4b37226_terseLabel_en-US" xlink:label="lab_pnm_DeferredRegulatoryAssetIncreaseDecreaseDuringThePeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase in deferred regulatory assets</link:label>
    <link:label id="lab_pnm_DeferredRegulatoryAssetIncreaseDecreaseDuringThePeriod_label_en-US" xlink:label="lab_pnm_DeferredRegulatoryAssetIncreaseDecreaseDuringThePeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred Regulatory Asset, Increase (Decrease) During The Period</link:label>
    <link:label id="lab_pnm_DeferredRegulatoryAssetIncreaseDecreaseDuringThePeriod_documentation_en-US" xlink:label="lab_pnm_DeferredRegulatoryAssetIncreaseDecreaseDuringThePeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred Regulatory Asset, Increase (Decrease) During The Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_DeferredRegulatoryAssetIncreaseDecreaseDuringThePeriod" xlink:href="pnm-20230331.xsd#pnm_DeferredRegulatoryAssetIncreaseDecreaseDuringThePeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_DeferredRegulatoryAssetIncreaseDecreaseDuringThePeriod" xlink:to="lab_pnm_DeferredRegulatoryAssetIncreaseDecreaseDuringThePeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_2c390990-5bd6-4f95-ad77-6d15e22a0b5e_terseLabel_en-US" xlink:label="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portion at Fair Value Measurement</link:label>
    <link:label id="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember_label_en-US" xlink:label="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portion at Fair Value Measurement [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PortionAtFairValueFairValueDisclosureMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:to="lab_us-gaap_PortionAtFairValueFairValueDisclosureMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_WholesaleEnergySalesMember_af9da62f-0a64-46c3-a9a8-3193333e0f69_terseLabel_en-US" xlink:label="lab_pnm_WholesaleEnergySalesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Wholesale energy sales</link:label>
    <link:label id="lab_pnm_WholesaleEnergySalesMember_label_en-US" xlink:label="lab_pnm_WholesaleEnergySalesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Wholesale Energy Sales [Member]</link:label>
    <link:label id="lab_pnm_WholesaleEnergySalesMember_documentation_en-US" xlink:label="lab_pnm_WholesaleEnergySalesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Wholesale Energy Sales</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_WholesaleEnergySalesMember" xlink:href="pnm-20230331.xsd#pnm_WholesaleEnergySalesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_WholesaleEnergySalesMember" xlink:to="lab_pnm_WholesaleEnergySalesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_DisincentivesAndIncentivesAddedMember_2f15a4f9-e195-4f24-b95f-5203f9ba5413_terseLabel_en-US" xlink:label="lab_pnm_DisincentivesAndIncentivesAddedMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disincentives and Incentives Added</link:label>
    <link:label id="lab_pnm_DisincentivesAndIncentivesAddedMember_label_en-US" xlink:label="lab_pnm_DisincentivesAndIncentivesAddedMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disincentives and Incentives Added [Member]</link:label>
    <link:label id="lab_pnm_DisincentivesAndIncentivesAddedMember_documentation_en-US" xlink:label="lab_pnm_DisincentivesAndIncentivesAddedMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disincentives and Incentives Added</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_DisincentivesAndIncentivesAddedMember" xlink:href="pnm-20230331.xsd#pnm_DisincentivesAndIncentivesAddedMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_DisincentivesAndIncentivesAddedMember" xlink:to="lab_pnm_DisincentivesAndIncentivesAddedMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_3bb147c7-4277-4af5-9555-7e6a09be25ad_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Awards of common stock</link:label>
    <link:label id="lab_us-gaap_PaymentsForRepurchaseOfCommonStock_label_en-US" xlink:label="lab_us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments for Repurchase of Common Stock</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsForRepurchaseOfCommonStock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:to="lab_us-gaap_PaymentsForRepurchaseOfCommonStock" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued_842efb97-18ab-4bb9-b097-89971dc1516c_terseLabel_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative preferred stock of subsidiary, shares issued (in shares)</link:label>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued_label_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Issued</link:label>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued_documentation_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued" xlink:href="pnm-20230331.xsd#pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued" xlink:to="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TNMP2022BondPurchaseAgreementMember_482ff486-d14c-4af9-aaac-6d482da68e52_terseLabel_en-US" xlink:label="lab_pnm_TNMP2022BondPurchaseAgreementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP 2022 Bond Purchase Agreement</link:label>
    <link:label id="lab_pnm_TNMP2022BondPurchaseAgreementMember_label_en-US" xlink:label="lab_pnm_TNMP2022BondPurchaseAgreementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP 2022 Bond Purchase Agreement [Member]</link:label>
    <link:label id="lab_pnm_TNMP2022BondPurchaseAgreementMember_documentation_en-US" xlink:label="lab_pnm_TNMP2022BondPurchaseAgreementMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP 2022 Bond Purchase Agreement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TNMP2022BondPurchaseAgreementMember" xlink:href="pnm-20230331.xsd#pnm_TNMP2022BondPurchaseAgreementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_TNMP2022BondPurchaseAgreementMember" xlink:to="lab_pnm_TNMP2022BondPurchaseAgreementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesGovernmentStandardEmissionLimit_a99518f8-2914-4e8d-9d8b-5b362af425fb_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesGovernmentStandardEmissionLimit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Government standard emission limit (in ozone parts per million)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesGovernmentStandardEmissionLimit_label_en-US" xlink:label="lab_pnm_PublicUtilitiesGovernmentStandardEmissionLimit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Government Standard Emission Limit</link:label>
    <link:label id="lab_pnm_PublicUtilitiesGovernmentStandardEmissionLimit_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesGovernmentStandardEmissionLimit" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Government Standard Emission Limit</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesGovernmentStandardEmissionLimit" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesGovernmentStandardEmissionLimit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesGovernmentStandardEmissionLimit" xlink:to="lab_pnm_PublicUtilitiesGovernmentStandardEmissionLimit" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentQuarterlyReport_6efe824b-457d-4501-802b-bae96f7b0dd6_terseLabel_en-US" xlink:label="lab_dei_DocumentQuarterlyReport" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Quarterly Report</link:label>
    <link:label id="lab_dei_DocumentQuarterlyReport_label_en-US" xlink:label="lab_dei_DocumentQuarterlyReport" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Quarterly Report</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentQuarterlyReport" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentQuarterlyReport"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentQuarterlyReport" xlink:to="lab_dei_DocumentQuarterlyReport" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesPlanningPeriodCoveredOfIRP_e720c152-2939-4e20-a277-e7af1d57bbdd_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesPlanningPeriodCoveredOfIRP" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Planning period covered of IRP</link:label>
    <link:label id="lab_pnm_PublicUtilitiesPlanningPeriodCoveredOfIRP_label_en-US" xlink:label="lab_pnm_PublicUtilitiesPlanningPeriodCoveredOfIRP" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Planning Period Covered Of IRP</link:label>
    <link:label id="lab_pnm_PublicUtilitiesPlanningPeriodCoveredOfIRP_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesPlanningPeriodCoveredOfIRP" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Planning Period Covered Of IRP</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesPlanningPeriodCoveredOfIRP" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesPlanningPeriodCoveredOfIRP"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesPlanningPeriodCoveredOfIRP" xlink:to="lab_pnm_PublicUtilitiesPlanningPeriodCoveredOfIRP" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_d780021a-52bd-45fc-b945-559794d6266b_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current Assets:</link:label>
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_label_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets, Current [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsCurrentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsCurrentAbstract" xlink:to="lab_us-gaap_AssetsCurrentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_d90f516d-f8de-4cf7-8abc-76b906974e90_terseLabel_en-US" xlink:label="lab_pnm_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Later years</link:label>
    <link:label id="lab_pnm_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_label_en-US" xlink:label="lab_pnm_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, after Year Four</link:label>
    <link:label id="lab_pnm_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour_documentation_en-US" xlink:label="lab_pnm_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, after Year Four</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" xlink:href="pnm-20230331.xsd#pnm_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" xlink:to="lab_pnm_LesseeOperatingLeaseLiabilityToBePaidAfterYearFour" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UnbilledReceivablesCurrent_c8574385-02d1-45a6-8943-e7e2c59b07fc_terseLabel_en-US" xlink:label="lab_us-gaap_UnbilledReceivablesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unbilled revenues</link:label>
    <link:label id="lab_us-gaap_UnbilledReceivablesCurrent_label_en-US" xlink:label="lab_us-gaap_UnbilledReceivablesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unbilled Receivables, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnbilledReceivablesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UnbilledReceivablesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnbilledReceivablesCurrent" xlink:to="lab_us-gaap_UnbilledReceivablesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquitySecuritiesFvNiRealizedGainLoss_f4ed6190-1274-4706-9981-0228bb05d144_terseLabel_en-US" xlink:label="lab_us-gaap_EquitySecuritiesFvNiRealizedGainLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net gains (losses) from equity securities sold</link:label>
    <link:label id="lab_us-gaap_EquitySecuritiesFvNiRealizedGainLoss_label_en-US" xlink:label="lab_us-gaap_EquitySecuritiesFvNiRealizedGainLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Securities, FV-NI, Realized Gain (Loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiRealizedGainLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EquitySecuritiesFvNiRealizedGainLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquitySecuritiesFvNiRealizedGainLoss" xlink:to="lab_us-gaap_EquitySecuritiesFvNiRealizedGainLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_357a82ae-2dbc-43e7-b0ec-2175a1854bef_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retained earnings</link:label>
    <link:label id="lab_us-gaap_RetainedEarningsAccumulatedDeficit_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retained Earnings (Accumulated Deficit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:to="lab_us-gaap_RetainedEarningsAccumulatedDeficit" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedChangeAmount_10d7cccd-b193-4c04-8db4-9ef96fee13c9_terseLabel_en-US" xlink:label="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedChangeAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy efficiency cost recovery, requested change amount</link:label>
    <link:label id="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedChangeAmount_label_en-US" xlink:label="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedChangeAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy Efficiency Cost Recovery Factor, Requested Change Amount</link:label>
    <link:label id="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedChangeAmount_documentation_en-US" xlink:label="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedChangeAmount" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy Efficiency Cost Recovery Factor, Requested Change Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_EnergyEfficiencyCostRecoveryFactorRequestedChangeAmount" xlink:href="pnm-20230331.xsd#pnm_EnergyEfficiencyCostRecoveryFactorRequestedChangeAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_EnergyEfficiencyCostRecoveryFactorRequestedChangeAmount" xlink:to="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedChangeAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ScenarioUnspecifiedDomain_5d4669e9-585a-451e-8a31-455496d2c70e_terseLabel_en-US" xlink:label="lab_srt_ScenarioUnspecifiedDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Scenario [Domain]</link:label>
    <link:label id="lab_srt_ScenarioUnspecifiedDomain_label_en-US" xlink:label="lab_srt_ScenarioUnspecifiedDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Scenario [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioUnspecifiedDomain" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ScenarioUnspecifiedDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ScenarioUnspecifiedDomain" xlink:to="lab_srt_ScenarioUnspecifiedDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NavajoNationMember_a5113d93-fd86-48e0-b0dd-818021bb6562_terseLabel_en-US" xlink:label="lab_pnm_NavajoNationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Navajo Nation</link:label>
    <link:label id="lab_pnm_NavajoNationMember_label_en-US" xlink:label="lab_pnm_NavajoNationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Navajo Nation [Member]</link:label>
    <link:label id="lab_pnm_NavajoNationMember_documentation_en-US" xlink:label="lab_pnm_NavajoNationMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Navajo Nation [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NavajoNationMember" xlink:href="pnm-20230331.xsd#pnm_NavajoNationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NavajoNationMember" xlink:to="lab_pnm_NavajoNationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueMeasurementsRecurringMember_dfbd2de3-ef75-440d-b567-56808ae05779_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsRecurringMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Recurring</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementsRecurringMember_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsRecurringMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Recurring [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValueMeasurementsRecurringMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueMeasurementsRecurringMember" xlink:to="lab_us-gaap_FairValueMeasurementsRecurringMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_6a228f38-a741-4534-b2b0-74bc060416d9_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transactions Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionsDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:to="lab_us-gaap_RelatedPartyTransactionsDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LeasedInterestTerminationOnJanuary152023Member_1625a77c-f108-46d2-a030-b7e8859a67b1_terseLabel_en-US" xlink:label="lab_pnm_LeasedInterestTerminationOnJanuary152023Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leased Interest Termination on January 15, 2023</link:label>
    <link:label id="lab_pnm_LeasedInterestTerminationOnJanuary152023Member_label_en-US" xlink:label="lab_pnm_LeasedInterestTerminationOnJanuary152023Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leased Interest Termination On January 15, 2023 [Member]</link:label>
    <link:label id="lab_pnm_LeasedInterestTerminationOnJanuary152023Member_documentation_en-US" xlink:label="lab_pnm_LeasedInterestTerminationOnJanuary152023Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leased Interest Termination On January 15, 2023</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LeasedInterestTerminationOnJanuary152023Member" xlink:href="pnm-20230331.xsd#pnm_LeasedInterestTerminationOnJanuary152023Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LeasedInterestTerminationOnJanuary152023Member" xlink:to="lab_pnm_LeasedInterestTerminationOnJanuary152023Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_ceb5f005-2fd7-4dde-9555-c4f948f78e26_verboseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Approved return on equity</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Approved Return on Equity, Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage" xlink:to="lab_us-gaap_PublicUtilitiesApprovedReturnOnEquityPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax_5e587bf5-2237-49a7-90d7-1f0c7de1fdfa_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reclassification adjustment for (gains) losses included in net earnings, income tax expense (benefit)</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax"/>
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    <link:label id="lab_dei_DocumentFiscalYearFocus_c79670fe-3af0-4a89-be37-736f0963dd8c_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalYearFocus_label_en-US" xlink:label="lab_dei_DocumentFiscalYearFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Fiscal Year Focus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalYearFocus" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentFiscalYearFocus"/>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_8d43937e-db2b-47f6-aead-a552b8b5695d_terseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeasePrincipalPayments_cca6bb89-4dfb-42f5-b4c4-f0205b77b628_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeasePrincipalPayments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance cash flows from financing leases</link:label>
    <link:label id="lab_us-gaap_FinanceLeasePrincipalPayments_label_en-US" xlink:label="lab_us-gaap_FinanceLeasePrincipalPayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Principal Payments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeasePrincipalPayments" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeasePrincipalPayments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeasePrincipalPayments" xlink:to="lab_us-gaap_FinanceLeasePrincipalPayments" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TerminationFees_bcb36a6b-593a-4b97-a0cb-314116276d7f_terseLabel_en-US" xlink:label="lab_pnm_TerminationFees" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Termination fees</link:label>
    <link:label id="lab_pnm_TerminationFees_label_en-US" xlink:label="lab_pnm_TerminationFees" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Termination Fees</link:label>
    <link:label id="lab_pnm_TerminationFees_documentation_en-US" xlink:label="lab_pnm_TerminationFees" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Termination Fees</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TerminationFees" xlink:href="pnm-20230331.xsd#pnm_TerminationFees"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_TerminationFees" xlink:to="lab_pnm_TerminationFees" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ElectricGenerationPortfolioStandardMember_447107e7-1a57-4b8a-9ffb-4da6ced9c6f9_terseLabel_en-US" xlink:label="lab_pnm_ElectricGenerationPortfolioStandardMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Electric-Generation Portfolio Standard</link:label>
    <link:label id="lab_pnm_ElectricGenerationPortfolioStandardMember_label_en-US" xlink:label="lab_pnm_ElectricGenerationPortfolioStandardMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Electric-Generation Portfolio Standard [Member]</link:label>
    <link:label id="lab_pnm_ElectricGenerationPortfolioStandardMember_documentation_en-US" xlink:label="lab_pnm_ElectricGenerationPortfolioStandardMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Electric-Generation Portfolio Standard [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ElectricGenerationPortfolioStandardMember" xlink:href="pnm-20230331.xsd#pnm_ElectricGenerationPortfolioStandardMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ElectricGenerationPortfolioStandardMember" xlink:to="lab_pnm_ElectricGenerationPortfolioStandardMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_e5d3f7cb-df54-419a-938e-e569d49cb7c1_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Hierarchy and NAV [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis_label_en-US" xlink:label="lab_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Hierarchy and NAV [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/>
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    <link:label id="lab_pnm_DebtMaturitiesTable_e3fa4ca2-aa5e-4e28-9798-6cc2d8ea841b_terseLabel_en-US" xlink:label="lab_pnm_DebtMaturitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Maturities [Table]</link:label>
    <link:label id="lab_pnm_DebtMaturitiesTable_label_en-US" xlink:label="lab_pnm_DebtMaturitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Maturities [Table]</link:label>
    <link:label id="lab_pnm_DebtMaturitiesTable_documentation_en-US" xlink:label="lab_pnm_DebtMaturitiesTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Maturities [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_DebtMaturitiesTable" xlink:href="pnm-20230331.xsd#pnm_DebtMaturitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_DebtMaturitiesTable" xlink:to="lab_pnm_DebtMaturitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CoalFiredElectricityGeneratingFacilityDemolitionAndRemediationOrdinanceMember_5733e11f-338b-43a0-b549-71ade3560673_terseLabel_en-US" xlink:label="lab_pnm_CoalFiredElectricityGeneratingFacilityDemolitionAndRemediationOrdinanceMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Coal-Fired Electricity Generating Facility Demolition And Remediation Ordinance</link:label>
    <link:label id="lab_pnm_CoalFiredElectricityGeneratingFacilityDemolitionAndRemediationOrdinanceMember_label_en-US" xlink:label="lab_pnm_CoalFiredElectricityGeneratingFacilityDemolitionAndRemediationOrdinanceMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Coal-Fired Electricity Generating Facility Demolition And Remediation Ordinance [Member]</link:label>
    <link:label id="lab_pnm_CoalFiredElectricityGeneratingFacilityDemolitionAndRemediationOrdinanceMember_documentation_en-US" xlink:label="lab_pnm_CoalFiredElectricityGeneratingFacilityDemolitionAndRemediationOrdinanceMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Coal-Fired Electricity Generating Facility Demolition And Remediation Ordinance</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CoalFiredElectricityGeneratingFacilityDemolitionAndRemediationOrdinanceMember" xlink:href="pnm-20230331.xsd#pnm_CoalFiredElectricityGeneratingFacilityDemolitionAndRemediationOrdinanceMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CoalFiredElectricityGeneratingFacilityDemolitionAndRemediationOrdinanceMember" xlink:to="lab_pnm_CoalFiredElectricityGeneratingFacilityDemolitionAndRemediationOrdinanceMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_EarningsPerShareBasicAndDilutedEPSAbstract_84847f70-ee41-499b-9082-470e28dadbb1_terseLabel_en-US" xlink:label="lab_pnm_EarningsPerShareBasicAndDilutedEPSAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Earnings Per Share of Common Stock:</link:label>
    <link:label id="lab_pnm_EarningsPerShareBasicAndDilutedEPSAbstract_label_en-US" xlink:label="lab_pnm_EarningsPerShareBasicAndDilutedEPSAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Earnings Per Share, Basic And Diluted, EPS [Abstract]</link:label>
    <link:label id="lab_pnm_EarningsPerShareBasicAndDilutedEPSAbstract_documentation_en-US" xlink:label="lab_pnm_EarningsPerShareBasicAndDilutedEPSAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Earnings Per Share, Basic And Diluted, EPS</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_EarningsPerShareBasicAndDilutedEPSAbstract" xlink:href="pnm-20230331.xsd#pnm_EarningsPerShareBasicAndDilutedEPSAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_EarningsPerShareBasicAndDilutedEPSAbstract" xlink:to="lab_pnm_EarningsPerShareBasicAndDilutedEPSAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FinancialStatementLocationAxis_8dde889d-df49-45a9-92ed-5a95a3d11257_terseLabel_en-US" xlink:label="lab_pnm_FinancialStatementLocationAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financial Statement Location [Axis]</link:label>
    <link:label id="lab_pnm_FinancialStatementLocationAxis_label_en-US" xlink:label="lab_pnm_FinancialStatementLocationAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financial Statement Location [Axis]</link:label>
    <link:label id="lab_pnm_FinancialStatementLocationAxis_documentation_en-US" xlink:label="lab_pnm_FinancialStatementLocationAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financial Statement Location [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FinancialStatementLocationAxis" xlink:href="pnm-20230331.xsd#pnm_FinancialStatementLocationAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FinancialStatementLocationAxis" xlink:to="lab_pnm_FinancialStatementLocationAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LossOnLongTermPurchaseCommitmentMember_5acc1f8b-8cfe-44e3-8bae-5bb0af72f54b_terseLabel_en-US" xlink:label="lab_us-gaap_LossOnLongTermPurchaseCommitmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss on long-term purchase commitment</link:label>
    <link:label id="lab_us-gaap_LossOnLongTermPurchaseCommitmentMember_label_en-US" xlink:label="lab_us-gaap_LossOnLongTermPurchaseCommitmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss on Long-Term Purchase Commitment [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossOnLongTermPurchaseCommitmentMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LossOnLongTermPurchaseCommitmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LossOnLongTermPurchaseCommitmentMember" xlink:to="lab_us-gaap_LossOnLongTermPurchaseCommitmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_UtilityMargin_b3d87c3f-7b5d-4054-bd10-b7df403213f3_totalLabel_en-US" xlink:label="lab_pnm_UtilityMargin" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Utility margin</link:label>
    <link:label id="lab_pnm_UtilityMargin_label_en-US" xlink:label="lab_pnm_UtilityMargin" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Utility Margin</link:label>
    <link:label id="lab_pnm_UtilityMargin_documentation_en-US" xlink:label="lab_pnm_UtilityMargin" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Utility Margin</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_UtilityMargin" xlink:href="pnm-20230331.xsd#pnm_UtilityMargin"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_UtilityMargin" xlink:to="lab_pnm_UtilityMargin" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RegulatoryAssetAxis_3a6a18f3-dde8-4564-bf84-e70d2cda61eb_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Asset [Axis]</link:label>
    <link:label id="lab_us-gaap_RegulatoryAssetAxis_label_en-US" xlink:label="lab_us-gaap_RegulatoryAssetAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Asset [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAssetAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RegulatoryAssetAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryAssetAxis" xlink:to="lab_us-gaap_RegulatoryAssetAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseExpense_503d1e7c-a4d9-4bef-bc84-54325ab81ad9_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total operating lease expense</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseExpense_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseExpense" xlink:to="lab_us-gaap_OperatingLeaseExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_288a8f4e-515b-4a59-a7fe-19eec4c733dc_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Utility plant additions</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireProductiveAssets_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireProductiveAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments to Acquire Productive Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToAcquireProductiveAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireProductiveAssets" xlink:to="lab_us-gaap_PaymentsToAcquireProductiveAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CoalSupplyMember_ac7552b6-7938-41e2-a3bd-c3384897df94_terseLabel_en-US" xlink:label="lab_pnm_CoalSupplyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Coal supply</link:label>
    <link:label id="lab_pnm_CoalSupplyMember_label_en-US" xlink:label="lab_pnm_CoalSupplyMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Coal Supply [Member]</link:label>
    <link:label id="lab_pnm_CoalSupplyMember_documentation_en-US" xlink:label="lab_pnm_CoalSupplyMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Coal Supply [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CoalSupplyMember" xlink:href="pnm-20230331.xsd#pnm_CoalSupplyMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CoalSupplyMember" xlink:to="lab_pnm_CoalSupplyMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyInYearThree_6312f11e-4b69-4994-8a7b-1bdc201488a3_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyInYearThree" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Program costs related to energy efficiency, in year three</link:label>
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    <link:label id="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyInYearThree_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyInYearThree" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Program Costs Related To Energy Efficiency, in Year Three</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyInYearThree" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyInYearThree"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyInYearThree" xlink:to="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyInYearThree" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInInventories_8cd24b82-4f69-4d98-8e81-ec3663db22a0_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInventories" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Materials, supplies, and fuel stock</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInInventories_fb5ed9a4-cf07-4c1b-a800-e903719cefee_netLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInventories" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reduction to inventories</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInInventories_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInInventories" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Inventories</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInInventories" xlink:to="lab_us-gaap_IncreaseDecreaseInInventories" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ContractWithCustomerCashCollateral_fd78c385-7f19-412a-86b1-ef4a9bf77359_terseLabel_en-US" xlink:label="lab_pnm_ContractWithCustomerCashCollateral" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Existing Cash Collateral</link:label>
    <link:label id="lab_pnm_ContractWithCustomerCashCollateral_label_en-US" xlink:label="lab_pnm_ContractWithCustomerCashCollateral" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contract With Customer, Cash Collateral</link:label>
    <link:label id="lab_pnm_ContractWithCustomerCashCollateral_documentation_en-US" xlink:label="lab_pnm_ContractWithCustomerCashCollateral" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contract With Customer, Cash Collateral</link:label>
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    <link:label id="lab_pnm_CompanyCommonStockholdersEquity_6cc7c06c-016f-4319-8254-b165bf7d5352_terseLabel_en-US" xlink:label="lab_pnm_CompanyCommonStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM common stockholder&#8217;s equity:</link:label>
    <link:label id="lab_pnm_CompanyCommonStockholdersEquity_label_en-US" xlink:label="lab_pnm_CompanyCommonStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Company Common Stockholders Equity</link:label>
    <link:label id="lab_pnm_CompanyCommonStockholdersEquity_documentation_en-US" xlink:label="lab_pnm_CompanyCommonStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Company Common Stockholders Equity</link:label>
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    <link:label id="lab_pnm_FinanceLeaseCost_36b3c839-d4f8-4082-9dbd-f0e1b8d2a048_totalLabel_en-US" xlink:label="lab_pnm_FinanceLeaseCost" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total financing lease expense</link:label>
    <link:label id="lab_pnm_FinanceLeaseCost_label_en-US" xlink:label="lab_pnm_FinanceLeaseCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Cost</link:label>
    <link:label id="lab_pnm_FinanceLeaseCost_documentation_en-US" xlink:label="lab_pnm_FinanceLeaseCost" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FinanceLeaseCost" xlink:href="pnm-20230331.xsd#pnm_FinanceLeaseCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FinanceLeaseCost" xlink:to="lab_pnm_FinanceLeaseCost" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsProfitIncentive_39224176-12f5-46b4-a815-e71313e57302_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsProfitIncentive" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy efficiency and load management programs</link:label>
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    <link:label id="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsProfitIncentive_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsProfitIncentive" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Energy Efficiency And Load Management Programs Profit Incentive</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsProfitIncentive" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsProfitIncentive"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsProfitIncentive" xlink:to="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsProfitIncentive" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfStatesToAddressRegionalHaze_ea516a3f-ca81-455c-8713-728b5e25f91c_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfStatesToAddressRegionalHaze" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of states to address regional haze (in states)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfStatesToAddressRegionalHaze_label_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfStatesToAddressRegionalHaze" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Number of States To Address Regional Haze</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfStatesToAddressRegionalHaze_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfStatesToAddressRegionalHaze" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Number of States To Address Regional Haze</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesNumberOfStatesToAddressRegionalHaze" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesNumberOfStatesToAddressRegionalHaze"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesNumberOfStatesToAddressRegionalHaze" xlink:to="lab_pnm_PublicUtilitiesNumberOfStatesToAddressRegionalHaze" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_49197d1f-7e21-4b5d-a879-5e3628092dce_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock, shares outstanding (in shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockSharesOutstanding_label_en-US" xlink:label="lab_us-gaap_CommonStockSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock, Shares, Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockSharesOutstanding" xlink:to="lab_us-gaap_CommonStockSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_Goodwill_b20a321f-54ea-4a5a-b6be-81f109bbb9de_terseLabel_en-US" xlink:label="lab_us-gaap_Goodwill" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill</link:label>
    <link:label id="lab_us-gaap_Goodwill_label_en-US" xlink:label="lab_us-gaap_Goodwill" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_Goodwill"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Goodwill" xlink:to="lab_us-gaap_Goodwill" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BalanceSheetRelatedDisclosuresAbstract_7f605cd3-1671-4408-9457-6e4528eefdb0_terseLabel_en-US" xlink:label="lab_us-gaap_BalanceSheetRelatedDisclosuresAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financial Position</link:label>
    <link:label id="lab_us-gaap_BalanceSheetRelatedDisclosuresAbstract_label_en-US" xlink:label="lab_us-gaap_BalanceSheetRelatedDisclosuresAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Balance Sheet Related Disclosures [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_BalanceSheetRelatedDisclosuresAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BalanceSheetRelatedDisclosuresAbstract" xlink:to="lab_us-gaap_BalanceSheetRelatedDisclosuresAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TNMP2023BondPurchaseAgreementMember_adf65bca-d3d2-449b-a68e-e500f5abf216_terseLabel_en-US" xlink:label="lab_pnm_TNMP2023BondPurchaseAgreementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP 2023 Bond Purchase Agreement</link:label>
    <link:label id="lab_pnm_TNMP2023BondPurchaseAgreementMember_label_en-US" xlink:label="lab_pnm_TNMP2023BondPurchaseAgreementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP 2023 Bond Purchase Agreement [Member]</link:label>
    <link:label id="lab_pnm_TNMP2023BondPurchaseAgreementMember_documentation_en-US" xlink:label="lab_pnm_TNMP2023BondPurchaseAgreementMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP 2023 Bond Purchase Agreement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TNMP2023BondPurchaseAgreementMember" xlink:href="pnm-20230331.xsd#pnm_TNMP2023BondPurchaseAgreementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_TNMP2023BondPurchaseAgreementMember" xlink:to="lab_pnm_TNMP2023BondPurchaseAgreementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_561442c4-e300-4186-8469-29c06718ff70_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Property, Plant and Equipment, Type [Axis]</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-Lived Tangible Asset [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization_123000b0-f3c1-4d2f-a840-3f6f3b793e7d_terseLabel_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Depreciation and amortization</link:label>
    <link:label id="lab_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization_label_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost, Depreciation and Amortization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization" xlink:to="lab_us-gaap_CostOfGoodsAndServicesSoldDepreciationAndAmortization" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PerformancePeriod_5ff62561-e6ee-4c0b-80f9-627324e12e2d_terseLabel_en-US" xlink:label="lab_pnm_PerformancePeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Performance period</link:label>
    <link:label id="lab_pnm_PerformancePeriod_label_en-US" xlink:label="lab_pnm_PerformancePeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Performance Period</link:label>
    <link:label id="lab_pnm_PerformancePeriod_documentation_en-US" xlink:label="lab_pnm_PerformancePeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Performance period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PerformancePeriod" xlink:href="pnm-20230331.xsd#pnm_PerformancePeriod"/>
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    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_9ad5785e-7203-44cd-8ae0-b0b89c0017c9_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Taxes (Benefits)</link:label>
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    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_36f53f21-bdac-4485-8ac9-fef4c7a2030c_verboseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income taxes (benefit)</link:label>
    <link:label id="lab_us-gaap_IncomeTaxExpenseBenefit_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Tax Expense (Benefit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExpenseBenefit" xlink:to="lab_us-gaap_IncomeTaxExpenseBenefit" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_29a32ada-1f59-4540-9fdd-06ec0e0a60ce_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated deferred income taxes</link:label>
    <link:label id="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet_label_en-US" xlink:label="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred Income Tax Liabilities, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:to="lab_us-gaap_DeferredIncomeTaxLiabilitiesNet" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PortfolioThreeMember_6237fd7a-cbc1-4777-a13c-67b083a9173d_terseLabel_en-US" xlink:label="lab_pnm_PortfolioThreeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portfolio Three</link:label>
    <link:label id="lab_pnm_PortfolioThreeMember_label_en-US" xlink:label="lab_pnm_PortfolioThreeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portfolio Three [Member]</link:label>
    <link:label id="lab_pnm_PortfolioThreeMember_documentation_en-US" xlink:label="lab_pnm_PortfolioThreeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portfolio Three</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PortfolioThreeMember" xlink:href="pnm-20230331.xsd#pnm_PortfolioThreeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PortfolioThreeMember" xlink:to="lab_pnm_PortfolioThreeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_a150b16f-dd08-4ffa-9001-2b7dd9dc5755_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Hedging Relationship [Axis]</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Hedging Relationship [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:to="lab_us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BalanceSheetLocationDomain_47d63bd3-d065-4a7a-b2a0-c9da2a438880_terseLabel_en-US" xlink:label="lab_us-gaap_BalanceSheetLocationDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Balance Sheet Location [Domain]</link:label>
    <link:label id="lab_us-gaap_BalanceSheetLocationDomain_label_en-US" xlink:label="lab_us-gaap_BalanceSheetLocationDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Balance Sheet Location [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BalanceSheetLocationDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_BalanceSheetLocationDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BalanceSheetLocationDomain" xlink:to="lab_us-gaap_BalanceSheetLocationDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_VariableInterestEntityStatementOfOperationAbstract_63f446a8-3d9d-438d-afb2-61d36b043965_terseLabel_en-US" xlink:label="lab_pnm_VariableInterestEntityStatementOfOperationAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Results of Operations</link:label>
    <link:label id="lab_pnm_VariableInterestEntityStatementOfOperationAbstract_label_en-US" xlink:label="lab_pnm_VariableInterestEntityStatementOfOperationAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Interest Entity, Statement Of Operation [Abstract]</link:label>
    <link:label id="lab_pnm_VariableInterestEntityStatementOfOperationAbstract_documentation_en-US" xlink:label="lab_pnm_VariableInterestEntityStatementOfOperationAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Interest Entity, Statement Of Operation [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_VariableInterestEntityStatementOfOperationAbstract" xlink:href="pnm-20230331.xsd#pnm_VariableInterestEntityStatementOfOperationAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_VariableInterestEntityStatementOfOperationAbstract" xlink:to="lab_pnm_VariableInterestEntityStatementOfOperationAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CostOfGoodsAndServicesSold_440cb3ed-b95a-4816-9d36-3396a7b86e74_verboseLabel_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSold" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy costs</link:label>
    <link:label id="lab_us-gaap_CostOfGoodsAndServicesSold_7185d7f2-b44d-4b37-af61-68f3cd5ec3ab_terseLabel_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSold" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost of energy</link:label>
    <link:label id="lab_us-gaap_CostOfGoodsAndServicesSold_label_en-US" xlink:label="lab_us-gaap_CostOfGoodsAndServicesSold" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cost of Goods and Services Sold</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CostOfGoodsAndServicesSold" xlink:to="lab_us-gaap_CostOfGoodsAndServicesSold" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeLiabilities_54a300e3-d63d-46e8-a573-3d3926b18e7a_negatedTotalLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities" xlink:role="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative liability</link:label>
    <link:label id="lab_us-gaap_DerivativeLiabilities_label_en-US" xlink:label="lab_us-gaap_DerivativeLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative Liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeLiabilities" xlink:to="lab_us-gaap_DerivativeLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeCollateralRightToReclaimCash_eb07edd0-860e-4485-b372-079f29ec10a2_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeCollateralRightToReclaimCash" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amounts recognized for right to reclaim cash</link:label>
    <link:label id="lab_us-gaap_DerivativeCollateralRightToReclaimCash_label_en-US" xlink:label="lab_us-gaap_DerivativeCollateralRightToReclaimCash" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeCollateralRightToReclaimCash" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeCollateralRightToReclaimCash"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeCollateralRightToReclaimCash" xlink:to="lab_us-gaap_DerivativeCollateralRightToReclaimCash" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract_f6834a84-6853-4885-8dbf-b40ee51a8799_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pension Liability Adjustment:</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:to="lab_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_WEBLOCFacilityMember_d43eb9c5-3337-4b59-a9cc-6e48bc6c45f6_terseLabel_en-US" xlink:label="lab_pnm_WEBLOCFacilityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">WEB LOC Facility</link:label>
    <link:label id="lab_pnm_WEBLOCFacilityMember_label_en-US" xlink:label="lab_pnm_WEBLOCFacilityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">WEB LOC Facility [Member]</link:label>
    <link:label id="lab_pnm_WEBLOCFacilityMember_documentation_en-US" xlink:label="lab_pnm_WEBLOCFacilityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">WEB LOC Facility</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_WEBLOCFacilityMember" xlink:href="pnm-20230331.xsd#pnm_WEBLOCFacilityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_WEBLOCFacilityMember" xlink:to="lab_pnm_WEBLOCFacilityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearOne_1d5c5ea5-8116-4073-9346-38db37261bf3_terseLabel_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearOne" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maximum number of shares awarded in year one (in shares)</link:label>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearOne_label_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearOne" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares in Year One</link:label>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearOne_documentation_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearOne" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares in Year One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearOne" xlink:href="pnm-20230331.xsd#pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearOne"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearOne" xlink:to="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearOne" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PNMRToPNMMember_0af95e08-2c0b-4510-a601-aa2960f9f8db_terseLabel_en-US" xlink:label="lab_pnm_PNMRToPNMMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR to PNM</link:label>
    <link:label id="lab_pnm_PNMRToPNMMember_label_en-US" xlink:label="lab_pnm_PNMRToPNMMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR To PNM [Member]</link:label>
    <link:label id="lab_pnm_PNMRToPNMMember_documentation_en-US" xlink:label="lab_pnm_PNMRToPNMMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pnmr to Pnm [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PNMRToPNMMember" xlink:href="pnm-20230331.xsd#pnm_PNMRToPNMMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PNMRToPNMMember" xlink:to="lab_pnm_PNMRToPNMMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedPerformanceBonus_4ba5bb17-d5e5-4a31-99bd-378815c50fa1_terseLabel_en-US" xlink:label="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedPerformanceBonus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy efficiency cost recovery, requested bonus</link:label>
    <link:label id="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedPerformanceBonus_label_en-US" xlink:label="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedPerformanceBonus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy Efficiency Cost Recovery Factor, Requested Performance Bonus</link:label>
    <link:label id="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedPerformanceBonus_documentation_en-US" xlink:label="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedPerformanceBonus" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy Efficiency Cost Recovery Factor, Requested Performance Bonus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_EnergyEfficiencyCostRecoveryFactorRequestedPerformanceBonus" xlink:href="pnm-20230331.xsd#pnm_EnergyEfficiencyCostRecoveryFactorRequestedPerformanceBonus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_EnergyEfficiencyCostRecoveryFactorRequestedPerformanceBonus" xlink:to="lab_pnm_EnergyEfficiencyCostRecoveryFactorRequestedPerformanceBonus" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyNumberOfPrograms_6294f183-be0c-4d42-949b-0bb7f385b3d6_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyNumberOfPrograms" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Program costs related to energy efficiency, number of programs</link:label>
    <link:label id="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyNumberOfPrograms_label_en-US" xlink:label="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyNumberOfPrograms" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Program Costs Related To Energy Efficiency, Number Of Programs</link:label>
    <link:label id="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyNumberOfPrograms_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyNumberOfPrograms" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Program Costs Related To Energy Efficiency, Number Of Programs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyNumberOfPrograms" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyNumberOfPrograms"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyNumberOfPrograms" xlink:to="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyNumberOfPrograms" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_IncreaseDecreaseInAccruedInterestAndTaxes_fa6010aa-2d69-4bda-9c3f-7fd7ffbde02d_terseLabel_en-US" xlink:label="lab_pnm_IncreaseDecreaseInAccruedInterestAndTaxes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accrued interest and taxes</link:label>
    <link:label id="lab_pnm_IncreaseDecreaseInAccruedInterestAndTaxes_label_en-US" xlink:label="lab_pnm_IncreaseDecreaseInAccruedInterestAndTaxes" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase Decrease In Accrued Interest And Taxes</link:label>
    <link:label id="lab_pnm_IncreaseDecreaseInAccruedInterestAndTaxes_documentation_en-US" xlink:label="lab_pnm_IncreaseDecreaseInAccruedInterestAndTaxes" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) In Accrued Interest And Taxes</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_IncreaseDecreaseInAccruedInterestAndTaxes" xlink:href="pnm-20230331.xsd#pnm_IncreaseDecreaseInAccruedInterestAndTaxes"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_IncreaseDecreaseInAccruedInterestAndTaxes" xlink:to="lab_pnm_IncreaseDecreaseInAccruedInterestAndTaxes" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesAggregateAmountOfAllRiskInsurance_35a18ed5-ae4d-491b-839e-d5a65381bcfb_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesAggregateAmountOfAllRiskInsurance" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Aggregate amount of all risk insurance</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAggregateAmountOfAllRiskInsurance_label_en-US" xlink:label="lab_pnm_PublicUtilitiesAggregateAmountOfAllRiskInsurance" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Aggregate Amount of All Risk Insurance</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAggregateAmountOfAllRiskInsurance_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesAggregateAmountOfAllRiskInsurance" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Aggregate Amount of All Risk Insurance</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesAggregateAmountOfAllRiskInsurance" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesAggregateAmountOfAllRiskInsurance"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesAggregateAmountOfAllRiskInsurance" xlink:to="lab_pnm_PublicUtilitiesAggregateAmountOfAllRiskInsurance" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_IntegratedResourcePlan2011Member_fbf9c6cd-b56e-42ea-a1de-68f30c3610fd_terseLabel_en-US" xlink:label="lab_pnm_IntegratedResourcePlan2011Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Integrated Resource Plan, 2011</link:label>
    <link:label id="lab_pnm_IntegratedResourcePlan2011Member_label_en-US" xlink:label="lab_pnm_IntegratedResourcePlan2011Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Integrated Resource Plan, 2011 [Member]</link:label>
    <link:label id="lab_pnm_IntegratedResourcePlan2011Member_documentation_en-US" xlink:label="lab_pnm_IntegratedResourcePlan2011Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Integrated Resource Plan, 2011 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_IntegratedResourcePlan2011Member" xlink:href="pnm-20230331.xsd#pnm_IntegratedResourcePlan2011Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_IntegratedResourcePlan2011Member" xlink:to="lab_pnm_IntegratedResourcePlan2011Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockValue_1d8e2ec8-8c1c-43c7-abc0-511d0545b0f5_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock (no par value; 120,000,000 shares authorized; issued and outstanding 85,834,874 shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockValue_1e7026b9-27d5-4932-8ed7-069a38c18e60_verboseLabel_en-US" xlink:label="lab_us-gaap_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock (no par value; 40,000,000 shares authorized; issued and outstanding 39,117,799 shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockValue_049b6b9e-dd99-4b7e-b08f-e9998eee7ec1_netLabel_en-US" xlink:label="lab_us-gaap_CommonStockValue" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock ($10 par value; 12,000,000 shares authorized; issued and outstanding 6,358 shares)</link:label>
    <link:label id="lab_us-gaap_CommonStockValue_label_en-US" xlink:label="lab_us-gaap_CommonStockValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock, Value, Issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockValue" xlink:to="lab_us-gaap_CommonStockValue" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesForecastedUndepreciatedInvestment_d38aea2b-3184-4412-bb21-ec9b09cca08d_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesForecastedUndepreciatedInvestment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Forecasted undepreciated investment</link:label>
    <link:label id="lab_pnm_PublicUtilitiesForecastedUndepreciatedInvestment_label_en-US" xlink:label="lab_pnm_PublicUtilitiesForecastedUndepreciatedInvestment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Forecasted Undepreciated Investment</link:label>
    <link:label id="lab_pnm_PublicUtilitiesForecastedUndepreciatedInvestment_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesForecastedUndepreciatedInvestment" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, forecasted undepreciated investment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesForecastedUndepreciatedInvestment" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesForecastedUndepreciatedInvestment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesForecastedUndepreciatedInvestment" xlink:to="lab_pnm_PublicUtilitiesForecastedUndepreciatedInvestment" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentNameDomain_1e6c016a-6082-4118-8b57-c57d90714d7f_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Name [Domain]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentNameDomain_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Name [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentNameDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentNameDomain" xlink:to="lab_us-gaap_DebtInstrumentNameDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_2b496e30-8963-4cde-bf98-f722b2195c95_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Acquisition, Acquiree [Domain]</link:label>
    <link:label id="lab_us-gaap_BusinessAcquisitionAcquireeDomain_label_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Acquisition, Acquiree [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_BusinessAcquisitionAcquireeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:to="lab_us-gaap_BusinessAcquisitionAcquireeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PreferredStockMember_a7b7ef07-780c-4479-94b9-ae6f4c1be4f7_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Corporate stocks, preferred</link:label>
    <link:label id="lab_us-gaap_PreferredStockMember_label_en-US" xlink:label="lab_us-gaap_PreferredStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockMember" xlink:to="lab_us-gaap_PreferredStockMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SeniorNotesMember_162eba6a-77ea-45ac-b5ec-062c69d30af1_terseLabel_en-US" xlink:label="lab_us-gaap_SeniorNotesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Senior Notes</link:label>
    <link:label id="lab_us-gaap_SeniorNotesMember_label_en-US" xlink:label="lab_us-gaap_SeniorNotesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Senior Notes [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SeniorNotesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SeniorNotesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SeniorNotesMember" xlink:to="lab_us-gaap_SeniorNotesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherIncome_e60990f4-4f28-4c4c-a3c0-371fa5e7267c_terseLabel_en-US" xlink:label="lab_us-gaap_OtherIncome" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other income</link:label>
    <link:label id="lab_us-gaap_OtherIncome_label_en-US" xlink:label="lab_us-gaap_OtherIncome" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Income</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherIncome" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherIncome"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherIncome" xlink:to="lab_us-gaap_OtherIncome" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_VariableInterestEntityLineItems_976508a2-ae19-4a46-aa15-f7a0714148fe_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Interest Entity [Line Items]</link:label>
    <link:label id="lab_us-gaap_VariableInterestEntityLineItems_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Interest Entity [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableInterestEntityLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableInterestEntityLineItems" xlink:to="lab_us-gaap_VariableInterestEntityLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_5e87bd1b-459e-4d99-b2d2-6f98bd5db604_periodStartLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash, Restricted Cash, and Equivalents at Beginning of Period</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_3d6e27e0-cee6-4263-9ace-04380c6e0123_periodEndLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash, Restricted Cash, and Equivalents at End of Period</link:label>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents_label_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:to="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LesseeOperatingLeaseLeaseNotYetCommencedFixedConsideration_73c24722-81c5-4d47-ab46-505ac4dcddaa_terseLabel_en-US" xlink:label="lab_pnm_LesseeOperatingLeaseLeaseNotYetCommencedFixedConsideration" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease to be executed, fixed consideration</link:label>
    <link:label id="lab_pnm_LesseeOperatingLeaseLeaseNotYetCommencedFixedConsideration_label_en-US" xlink:label="lab_pnm_LesseeOperatingLeaseLeaseNotYetCommencedFixedConsideration" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Lease Not Yet Commenced, Fixed Consideration</link:label>
    <link:label id="lab_pnm_LesseeOperatingLeaseLeaseNotYetCommencedFixedConsideration_documentation_en-US" xlink:label="lab_pnm_LesseeOperatingLeaseLeaseNotYetCommencedFixedConsideration" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Lease Not Yet Commenced, Fixed Consideration</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LesseeOperatingLeaseLeaseNotYetCommencedFixedConsideration" xlink:href="pnm-20230331.xsd#pnm_LesseeOperatingLeaseLeaseNotYetCommencedFixedConsideration"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LesseeOperatingLeaseLeaseNotYetCommencedFixedConsideration" xlink:to="lab_pnm_LesseeOperatingLeaseLeaseNotYetCommencedFixedConsideration" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_TextBlockAbstract_label_en-US" xlink:label="lab_us-gaap_TextBlockAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Text Block [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TextBlockAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_TextBlockAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_TextBlockAbstract" xlink:to="lab_us-gaap_TextBlockAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_6deb2039-d663-46c6-a295-5f35a2f25da9_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current Liabilities:</link:label>
    <link:label id="lab_us-gaap_LiabilitiesCurrentAbstract_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities, Current [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesCurrentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrentAbstract" xlink:to="lab_us-gaap_LiabilitiesCurrentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTable_9423ddf1-7d7b-46b8-8b0d-38fe78a1d3b8_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities General Disclosures [Table]</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTable_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities General Disclosures [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesGeneralDisclosuresTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesGeneralDisclosuresTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesGeneralDisclosuresTable" xlink:to="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityCurrent_e09ced1d-e052-4061-ab3c-478b406b42a5_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Customer deposits</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerLiabilityCurrent_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiabilityCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contract with Customer, Liability, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerLiabilityCurrent" xlink:to="lab_us-gaap_ContractWithCustomerLiabilityCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ProceedsFromSecuritizationBonds_f142fa22-c002-4bc1-83b8-9ff9d6b60ab7_terseLabel_en-US" xlink:label="lab_pnm_ProceedsFromSecuritizationBonds" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from securitization bonds</link:label>
    <link:label id="lab_pnm_ProceedsFromSecuritizationBonds_label_en-US" xlink:label="lab_pnm_ProceedsFromSecuritizationBonds" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds From Securitization Bonds</link:label>
    <link:label id="lab_pnm_ProceedsFromSecuritizationBonds_documentation_en-US" xlink:label="lab_pnm_ProceedsFromSecuritizationBonds" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds From Securitization Bonds</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ProceedsFromSecuritizationBonds" xlink:href="pnm-20230331.xsd#pnm_ProceedsFromSecuritizationBonds"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ProceedsFromSecuritizationBonds" xlink:to="lab_pnm_ProceedsFromSecuritizationBonds" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeaseInterestExpense_3fc16138-b6b1-40c6-b7b2-96dde9e1b729_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest on lease liabilities</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseInterestExpense_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Interest Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseInterestExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseInterestExpense" xlink:to="lab_us-gaap_FinanceLeaseInterestExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ParentMember_e9e87c08-4f44-4f61-b7d1-abfcb329b622_terseLabel_en-US" xlink:label="lab_us-gaap_ParentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total PNMR Common Stockholders&#8217; Equity</link:label>
    <link:label id="lab_us-gaap_ParentMember_label_en-US" xlink:label="lab_us-gaap_ParentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Parent [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ParentMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ParentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ParentMember" xlink:to="lab_us-gaap_ParentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RetirementPlanTypeDomain_8cd86b96-677f-4436-b6d2-6cf8bdb469c7_terseLabel_en-US" xlink:label="lab_us-gaap_RetirementPlanTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retirement Plan Type [Domain]</link:label>
    <link:label id="lab_us-gaap_RetirementPlanTypeDomain_label_en-US" xlink:label="lab_us-gaap_RetirementPlanTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retirement Plan Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RetirementPlanTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetirementPlanTypeDomain" xlink:to="lab_us-gaap_RetirementPlanTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfLeasesExpiring_9616d10d-0efa-4d5b-aeba-79a44613f725_terseLabel_en-US" xlink:label="lab_pnm_NumberOfLeasesExpiring" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of leases, expiring</link:label>
    <link:label id="lab_pnm_NumberOfLeasesExpiring_label_en-US" xlink:label="lab_pnm_NumberOfLeasesExpiring" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Leases, Expiring</link:label>
    <link:label id="lab_pnm_NumberOfLeasesExpiring_documentation_en-US" xlink:label="lab_pnm_NumberOfLeasesExpiring" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Leases, Expiring</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfLeasesExpiring" xlink:href="pnm-20230331.xsd#pnm_NumberOfLeasesExpiring"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfLeasesExpiring" xlink:to="lab_pnm_NumberOfLeasesExpiring" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_AmendmentFlag_240685cd-91e4-4d6e-aff9-13b2864f852b_terseLabel_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amendment Flag</link:label>
    <link:label id="lab_dei_AmendmentFlag_label_en-US" xlink:label="lab_dei_AmendmentFlag" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amendment Flag</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_AmendmentFlag" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_AmendmentFlag"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_AmendmentFlag" xlink:to="lab_dei_AmendmentFlag" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseCost_68aef6fa-3cc5-4d68-996a-47bfc23ac166_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating lease cost:</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseCost_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseCost" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseCost" xlink:to="lab_us-gaap_OperatingLeaseCost" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_0fcd6819-c858-4700-884e-da3fe97f6caa_totalLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total Other Comprehensive Income (Loss)</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_03357c36-35b7-4ae1-a67d-458604e3cc41_netLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total other comprehensive income (loss)</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_0a01c0ae-f044-4691-976c-607bac0a2e37_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total Other Comprehensive Income (Loss)</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), Net of Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract_971ed75a-c4a6-43a5-b3b3-9f4803f3cae0_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unrealized Gains on Available-for-Sale Debt Securities:</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment and Tax [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:to="lab_us-gaap_OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_8dfaaf7d-6cce-4c9a-9c78-29085ddfd9e7_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill and Intangible Assets Disclosure [Abstract]</link:label>
    <link:label id="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill and Intangible Assets Disclosure [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:to="lab_us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_VariableRateDebtTranche2Member_35b0673b-505a-47d6-a1ea-2fa54493b1d7_terseLabel_en-US" xlink:label="lab_pnm_VariableRateDebtTranche2Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt, Tranche 2</link:label>
    <link:label id="lab_pnm_VariableRateDebtTranche2Member_label_en-US" xlink:label="lab_pnm_VariableRateDebtTranche2Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt, Tranche 2 [Member]</link:label>
    <link:label id="lab_pnm_VariableRateDebtTranche2Member_documentation_en-US" xlink:label="lab_pnm_VariableRateDebtTranche2Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt, Tranche 2</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_VariableRateDebtTranche2Member" xlink:href="pnm-20230331.xsd#pnm_VariableRateDebtTranche2Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_VariableRateDebtTranche2Member" xlink:to="lab_pnm_VariableRateDebtTranche2Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_78a5b3f1-ad50-4033-a7c1-ef565e825c0f_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAdditionalDisclosuresAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfRealizedGainLossTableTextBlock_b7f4c9ae-03c4-47e4-9a17-99f00c6a3606_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRealizedGainLossTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Gross Realized Gains and Losses</link:label>
    <link:label id="lab_us-gaap_ScheduleOfRealizedGainLossTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRealizedGainLossTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Realized Gain (Loss) [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRealizedGainLossTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfRealizedGainLossTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfRealizedGainLossTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfRealizedGainLossTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_16a6d190-9321-4122-b574-7653b1101082_terseLabel_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Depreciation and amortization</link:label>
    <link:label id="lab_us-gaap_DepreciationDepletionAndAmortization_label_en-US" xlink:label="lab_us-gaap_DepreciationDepletionAndAmortization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Depreciation, Depletion and Amortization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DepreciationDepletionAndAmortization" xlink:to="lab_us-gaap_DepreciationDepletionAndAmortization" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesAnnualRateCredits_93685060-26b8-4cac-9720-a6e5c493e33c_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualRateCredits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Annual rate credits</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAnnualRateCredits_label_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualRateCredits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Annual Rate Credits</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAnnualRateCredits_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualRateCredits" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Annual Rate Credits</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesAnnualRateCredits" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesAnnualRateCredits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesAnnualRateCredits" xlink:to="lab_pnm_PublicUtilitiesAnnualRateCredits" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesLossContingency_ab503d2a-3f18-4a4a-b960-15c6769ac33f_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesLossContingency" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss contingency</link:label>
    <link:label id="lab_pnm_PublicUtilitiesLossContingency_label_en-US" xlink:label="lab_pnm_PublicUtilitiesLossContingency" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Loss Contingency</link:label>
    <link:label id="lab_pnm_PublicUtilitiesLossContingency_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesLossContingency" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Loss Contingency</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesLossContingency" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesLossContingency"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesLossContingency" xlink:to="lab_pnm_PublicUtilitiesLossContingency" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LesseeOperatingLeasePaymentsToLessorUponOccurrenceOfCertainEvents_d4669e18-3ea2-419b-a4d9-197625fbdd7e_terseLabel_en-US" xlink:label="lab_pnm_LesseeOperatingLeasePaymentsToLessorUponOccurrenceOfCertainEvents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating lease, payments to lessor upon occurrence of certain events</link:label>
    <link:label id="lab_pnm_LesseeOperatingLeasePaymentsToLessorUponOccurrenceOfCertainEvents_label_en-US" xlink:label="lab_pnm_LesseeOperatingLeasePaymentsToLessorUponOccurrenceOfCertainEvents" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Payments To Lessor Upon Occurrence Of Certain Events</link:label>
    <link:label id="lab_pnm_LesseeOperatingLeasePaymentsToLessorUponOccurrenceOfCertainEvents_documentation_en-US" xlink:label="lab_pnm_LesseeOperatingLeasePaymentsToLessorUponOccurrenceOfCertainEvents" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Payments To Lessor Upon Occurrence Of Certain Events</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LesseeOperatingLeasePaymentsToLessorUponOccurrenceOfCertainEvents" xlink:href="pnm-20230331.xsd#pnm_LesseeOperatingLeasePaymentsToLessorUponOccurrenceOfCertainEvents"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LesseeOperatingLeasePaymentsToLessorUponOccurrenceOfCertainEvents" xlink:to="lab_pnm_LesseeOperatingLeasePaymentsToLessorUponOccurrenceOfCertainEvents" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FirmPowerPurchasesMember_f87f4e00-fbc2-4aa2-9950-f19c8833337e_terseLabel_en-US" xlink:label="lab_pnm_FirmPowerPurchasesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Firm Power Purchases</link:label>
    <link:label id="lab_pnm_FirmPowerPurchasesMember_label_en-US" xlink:label="lab_pnm_FirmPowerPurchasesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Firm Power Purchases [Member]</link:label>
    <link:label id="lab_pnm_FirmPowerPurchasesMember_documentation_en-US" xlink:label="lab_pnm_FirmPowerPurchasesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Firm Power Purchases</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FirmPowerPurchasesMember" xlink:href="pnm-20230331.xsd#pnm_FirmPowerPurchasesMember"/>
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    <link:label id="lab_us-gaap_CommodityContractMember_dcc447d6-bc85-4ff4-97cf-c03ece1bbcbe_terseLabel_en-US" xlink:label="lab_us-gaap_CommodityContractMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commodity derivatives</link:label>
    <link:label id="lab_us-gaap_CommodityContractMember_label_en-US" xlink:label="lab_us-gaap_CommodityContractMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commodity Contract [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommodityContractMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommodityContractMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommodityContractMember" xlink:to="lab_us-gaap_CommodityContractMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_CounterpartyNameAxis_fa961dfc-c557-4a83-afd0-cdb85da2c800_terseLabel_en-US" xlink:label="lab_srt_CounterpartyNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Counterparty Name [Axis]</link:label>
    <link:label id="lab_srt_CounterpartyNameAxis_label_en-US" xlink:label="lab_srt_CounterpartyNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Counterparty Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_CounterpartyNameAxis" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_CounterpartyNameAxis"/>
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    <link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_da6d197c-a5ec-4560-9161-9216ea94ef31_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Related Party Transactions</link:label>
    <link:label id="lab_us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Related Party Transactions [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfRelatedPartyTransactionsTableTextBlock"/>
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    <link:label id="lab_pnm_PublicUtilitiesReasonableCostThresholdInMegawattsPerHour_481e5bf6-01da-4c68-96bd-e8ed8c3d441d_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesReasonableCostThresholdInMegawattsPerHour" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reasonable cost threshold in megawatts per hour</link:label>
    <link:label id="lab_pnm_PublicUtilitiesReasonableCostThresholdInMegawattsPerHour_label_en-US" xlink:label="lab_pnm_PublicUtilitiesReasonableCostThresholdInMegawattsPerHour" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Reasonable Cost Threshold In Megawatts Per Hour</link:label>
    <link:label id="lab_pnm_PublicUtilitiesReasonableCostThresholdInMegawattsPerHour_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesReasonableCostThresholdInMegawattsPerHour" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Reasonable Cost Threshold In Megawatts Per Hour</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesReasonableCostThresholdInMegawattsPerHour" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesReasonableCostThresholdInMegawattsPerHour"/>
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    <link:label id="lab_us-gaap_IncomeTaxExaminationEstimateOfPossibleLoss_6c3459e6-bb26-47e2-ba45-a99c5984c89a_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxExaminationEstimateOfPossibleLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income tax assessment</link:label>
    <link:label id="lab_us-gaap_IncomeTaxExaminationEstimateOfPossibleLoss_label_en-US" xlink:label="lab_us-gaap_IncomeTaxExaminationEstimateOfPossibleLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Tax Examination, Estimate of Possible Loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExaminationEstimateOfPossibleLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeTaxExaminationEstimateOfPossibleLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxExaminationEstimateOfPossibleLoss" xlink:to="lab_us-gaap_IncomeTaxExaminationEstimateOfPossibleLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_d823f8da-4305-4b85-ab33-5ddbc8296e1c_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Table]</link:label>
    <link:label id="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable_label_en-US" xlink:label="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss) [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:to="lab_us-gaap_AccumulatedOtherComprehensiveIncomeLossTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit_16e15d69-4d73-4160-ad00-cd1da74d8976_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred federal, state and local, income taxes</link:label>
    <link:label id="lab_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit_label_en-US" xlink:label="lab_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred Federal, State and Local, Tax Expense (Benefit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit" xlink:to="lab_us-gaap_DeferredFederalStateAndLocalTaxExpenseBenefit" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_46635ceb-b537-4186-940e-f43c7a4378e6_terseLabel_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:label id="lab_dei_EntityIncorporationStateCountryCode_label_en-US" xlink:label="lab_dei_EntityIncorporationStateCountryCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Incorporation, State or Country Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityIncorporationStateCountryCode" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityIncorporationStateCountryCode"/>
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    <link:label id="lab_pnm_RequiredPercentageby2045Member_be9eaaa0-889b-45a6-85b7-252c6db22d52_terseLabel_en-US" xlink:label="lab_pnm_RequiredPercentageby2045Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Required Percentage by 2045</link:label>
    <link:label id="lab_pnm_RequiredPercentageby2045Member_label_en-US" xlink:label="lab_pnm_RequiredPercentageby2045Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Required Percentage by 2045 [Member]</link:label>
    <link:label id="lab_pnm_RequiredPercentageby2045Member_documentation_en-US" xlink:label="lab_pnm_RequiredPercentageby2045Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Required Percentage by 2045 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RequiredPercentageby2045Member" xlink:href="pnm-20230331.xsd#pnm_RequiredPercentageby2045Member"/>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_0054f5e7-04ea-4375-8aaf-7369cf581640_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted Stock, Shares</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonOptionEquityInstrumentsOutstandingRollForward" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeasePayments_229e8711-ca76-433b-9364-506e5166feff_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeasePayments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating cash flows from operating leases</link:label>
    <link:label id="lab_us-gaap_OperatingLeasePayments_label_en-US" xlink:label="lab_us-gaap_OperatingLeasePayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Payments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeasePayments" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeasePayments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeasePayments" xlink:to="lab_us-gaap_OperatingLeasePayments" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FinanceLeaseRightOfUseAssetGross_4f47a56d-b66d-4fa3-a6d2-3eb3d5a0c043_terseLabel_en-US" xlink:label="lab_pnm_FinanceLeaseRightOfUseAssetGross" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-utility property</link:label>
    <link:label id="lab_pnm_FinanceLeaseRightOfUseAssetGross_label_en-US" xlink:label="lab_pnm_FinanceLeaseRightOfUseAssetGross" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Right-Of-Use Asset, Gross</link:label>
    <link:label id="lab_pnm_FinanceLeaseRightOfUseAssetGross_documentation_en-US" xlink:label="lab_pnm_FinanceLeaseRightOfUseAssetGross" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Right-Of-Use Asset, Gross</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FinanceLeaseRightOfUseAssetGross" xlink:href="pnm-20230331.xsd#pnm_FinanceLeaseRightOfUseAssetGross"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FinanceLeaseRightOfUseAssetGross" xlink:to="lab_pnm_FinanceLeaseRightOfUseAssetGross" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue_b10c7723-1653-47b2-b02a-fe732da7aa89_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsInHedgesAssetsAtFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative instruments in hedges, fair value</link:label>
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    <link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_b9c52ff6-0aad-45f7-bf76-18e2e31a1d9b_terseLabel_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Allowance for uncollectible accounts</link:label>
    <link:label id="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent_label_en-US" xlink:label="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts Receivable, Allowance for Credit Loss, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:to="lab_us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UtilitiesOperatingExpense_3063c6de-1a45-423f-88b5-523c4c4fb911_totalLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpense" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total operating expenses</link:label>
    <link:label id="lab_us-gaap_UtilitiesOperatingExpense_9d43c35a-8067-491e-b2b2-8fef6fb8a8e0_terseLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating expenses</link:label>
    <link:label id="lab_us-gaap_UtilitiesOperatingExpense_label_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Utilities Operating Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UtilitiesOperatingExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UtilitiesOperatingExpense"/>
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    <link:label id="lab_pnm_RepaymentsFromTransmissionInterconnectionArrangement_6ed5b270-3140-4c4b-9e52-b3ec3ed2c05b_negatedTerseLabel_en-US" xlink:label="lab_pnm_RepaymentsFromTransmissionInterconnectionArrangement" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Refunds paid under transmission interconnection arrangements</link:label>
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    <link:label id="lab_us-gaap_CommonStockSharesAuthorized_777258ea-26aa-4c01-bafb-c8e6323fef11_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock, shares authorized (in shares)</link:label>
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    <link:label id="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract_f26009ef-a346-42a4-9499-e07c5ad41bed_terseLabel_en-US" xlink:label="lab_us-gaap_StatementOfIncomeAndComprehensiveIncomeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Comprehensive Income [Abstract]</link:label>
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    <link:label id="lab_us-gaap_OperatingExpenses_a2cb5399-3a85-47e0-8ea4-334f8af6a6a2_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingExpenses" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating expenses</link:label>
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    <link:label id="lab_srt_MaximumMember_2afb80fb-360a-4f76-8435-ba5184dbfdc0_terseLabel_en-US" xlink:label="lab_srt_MaximumMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maximum</link:label>
    <link:label id="lab_srt_MaximumMember_label_en-US" xlink:label="lab_srt_MaximumMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maximum [Member]</link:label>
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    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesGrossUnrealizedGain_692bc564-8c52-46c5-80ad-5f6d2f51be73_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesGrossUnrealizedGain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investments, unrealized gain</link:label>
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    <link:label id="lab_pnm_SolarAgreementMember_6248b0ce-958f-4c71-9aee-0c9e11bb7d41_terseLabel_en-US" xlink:label="lab_pnm_SolarAgreementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Solar Agreement</link:label>
    <link:label id="lab_pnm_SolarAgreementMember_label_en-US" xlink:label="lab_pnm_SolarAgreementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Solar Agreement [Member]</link:label>
    <link:label id="lab_pnm_SolarAgreementMember_documentation_en-US" xlink:label="lab_pnm_SolarAgreementMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Solar Agreement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_SolarAgreementMember" xlink:href="pnm-20230331.xsd#pnm_SolarAgreementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_SolarAgreementMember" xlink:to="lab_pnm_SolarAgreementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_2dfe15c4-bb56-4465-b0f6-20cb0ab00bf5_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Business Acquisitions, by Acquisition [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Business Acquisitions, by Acquisition [Table]</link:label>
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    <link:label id="lab_us-gaap_PublicUtilitiesInventoryTypeDomain_e4fa4027-0a1d-43c9-b2fc-aa6b827efda7_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Inventory [Domain]</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesInventoryTypeDomain_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesInventoryTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Inventory [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesInventoryTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesInventoryTypeDomain"/>
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    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_e917c35f-2466-4324-8a1d-4ed526208ff4_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and Cash Equivalents, at Carrying Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:to="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquitySecuritiesFvNiGainLoss_531a39c7-17d2-4ff9-a8ec-46126198e0fd_totalLabel_en-US" xlink:label="lab_us-gaap_EquitySecuritiesFvNiGainLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total net gains (losses) on equity securities</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquitySecuritiesFvNiGainLoss" xlink:to="lab_us-gaap_EquitySecuritiesFvNiGainLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DesignatedAsHedgingInstrumentMember_4d1f7830-a9c0-47db-b9d7-35a4856bb9d6_terseLabel_en-US" xlink:label="lab_us-gaap_DesignatedAsHedgingInstrumentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Designated as Hedging Instrument</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DesignatedAsHedgingInstrumentMember" xlink:to="lab_us-gaap_DesignatedAsHedgingInstrumentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_OtherDeferredCostsNetIncludingDeferredFinanceCostsMember_70e64b37-5e5f-42a7-97c6-75de61dae370_terseLabel_en-US" xlink:label="lab_pnm_OtherDeferredCostsNetIncludingDeferredFinanceCostsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Deferred Costs Net Including Deferred Finance Costs</link:label>
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    <link:label id="lab_pnm_NumberOfOptionsForMeetingBTAStandards_021c3fa4-c0c7-48fe-b51b-d9936433b8fb_terseLabel_en-US" xlink:label="lab_pnm_NumberOfOptionsForMeetingBTAStandards" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of options for meeting BTA standards</link:label>
    <link:label id="lab_pnm_NumberOfOptionsForMeetingBTAStandards_label_en-US" xlink:label="lab_pnm_NumberOfOptionsForMeetingBTAStandards" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Options For Meeting BTA Standards</link:label>
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    <link:label id="lab_us-gaap_BusinessAcquisitionLineItems_a1f19653-b0f8-4193-8856-46e659b80f7a_terseLabel_en-US" xlink:label="lab_us-gaap_BusinessAcquisitionLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Acquisition [Line Items]</link:label>
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    <link:label id="lab_us-gaap_FairValueMeasurementFrequencyDomain_56c9b47d-b086-49db-b7ad-8f3619057764_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementFrequencyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Measurement Frequency [Domain]</link:label>
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    <link:label id="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock_836fefff-78d9-4739-b3a8-f21c462d578d_terseLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated Other Comprehensive Income (Loss)</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:to="lab_us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_88e1d48a-0d02-4423-b715-0f0df574e2d1_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Net Benefit Costs</link:label>
    <link:label id="lab_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Net Benefit Costs [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfNetBenefitCostsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock" xlink:to="lab_us-gaap_ScheduleOfNetBenefitCostsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesRegulatoryTimeFrameForProposedPPAsAndBatteryStorageAgreements_c911fa47-1da2-489c-9865-2c8a8a580a24_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesRegulatoryTimeFrameForProposedPPAsAndBatteryStorageAgreements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory time frame for proposed PPAs and battery storage agreements</link:label>
    <link:label id="lab_pnm_PublicUtilitiesRegulatoryTimeFrameForProposedPPAsAndBatteryStorageAgreements_label_en-US" xlink:label="lab_pnm_PublicUtilitiesRegulatoryTimeFrameForProposedPPAsAndBatteryStorageAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Regulatory Time Frame For Proposed PPAs And Battery Storage Agreements</link:label>
    <link:label id="lab_pnm_PublicUtilitiesRegulatoryTimeFrameForProposedPPAsAndBatteryStorageAgreements_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesRegulatoryTimeFrameForProposedPPAsAndBatteryStorageAgreements" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Regulatory Time Frame For Proposed PPAs And Battery Storage Agreements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesRegulatoryTimeFrameForProposedPPAsAndBatteryStorageAgreements" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesRegulatoryTimeFrameForProposedPPAsAndBatteryStorageAgreements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesRegulatoryTimeFrameForProposedPPAsAndBatteryStorageAgreements" xlink:to="lab_pnm_PublicUtilitiesRegulatoryTimeFrameForProposedPPAsAndBatteryStorageAgreements" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ReclamationTrustFundingYearOne_7db63cef-6632-451e-9f60-72745e80402a_terseLabel_en-US" xlink:label="lab_pnm_ReclamationTrustFundingYearOne" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reclamation trust funding, year one</link:label>
    <link:label id="lab_pnm_ReclamationTrustFundingYearOne_label_en-US" xlink:label="lab_pnm_ReclamationTrustFundingYearOne" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reclamation Trust Funding, Year One</link:label>
    <link:label id="lab_pnm_ReclamationTrustFundingYearOne_documentation_en-US" xlink:label="lab_pnm_ReclamationTrustFundingYearOne" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reclamation Trust Funding, Year One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ReclamationTrustFundingYearOne" xlink:href="pnm-20230331.xsd#pnm_ReclamationTrustFundingYearOne"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ReclamationTrustFundingYearOne" xlink:to="lab_pnm_ReclamationTrustFundingYearOne" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UnusualOrInfrequentItemDomain_aabe3f1b-0699-4022-b9b3-2fdcebe437d5_terseLabel_en-US" xlink:label="lab_us-gaap_UnusualOrInfrequentItemDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unusual or Infrequent Item, or Both [Domain]</link:label>
    <link:label id="lab_us-gaap_UnusualOrInfrequentItemDomain_label_en-US" xlink:label="lab_us-gaap_UnusualOrInfrequentItemDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unusual or Infrequent Item, or Both [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnusualOrInfrequentItemDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UnusualOrInfrequentItemDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnusualOrInfrequentItemDomain" xlink:to="lab_us-gaap_UnusualOrInfrequentItemDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TotalOtherPropertyAndInvestments_fab7f8b3-d8e9-40ee-af64-ba64a3f826fa_totalLabel_en-US" xlink:label="lab_pnm_TotalOtherPropertyAndInvestments" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total other property and investments</link:label>
    <link:label id="lab_pnm_TotalOtherPropertyAndInvestments_label_en-US" xlink:label="lab_pnm_TotalOtherPropertyAndInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total Other Property And Investments</link:label>
    <link:label id="lab_pnm_TotalOtherPropertyAndInvestments_documentation_en-US" xlink:label="lab_pnm_TotalOtherPropertyAndInvestments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total Other Property And Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TotalOtherPropertyAndInvestments" xlink:href="pnm-20230331.xsd#pnm_TotalOtherPropertyAndInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_TotalOtherPropertyAndInvestments" xlink:to="lab_pnm_TotalOtherPropertyAndInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PortfolioTwoMember_08499ad8-149a-4d4c-8484-499ddbece610_terseLabel_en-US" xlink:label="lab_pnm_PortfolioTwoMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portfolio Two</link:label>
    <link:label id="lab_pnm_PortfolioTwoMember_label_en-US" xlink:label="lab_pnm_PortfolioTwoMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portfolio Two [Member]</link:label>
    <link:label id="lab_pnm_PortfolioTwoMember_documentation_en-US" xlink:label="lab_pnm_PortfolioTwoMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Portfolio Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PortfolioTwoMember" xlink:href="pnm-20230331.xsd#pnm_PortfolioTwoMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PortfolioTwoMember" xlink:to="lab_pnm_PortfolioTwoMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_OtherOperatingExpenses_cb66a530-86d3-4230-9579-3402444e94f1_terseLabel_en-US" xlink:label="lab_pnm_OtherOperatingExpenses" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other operating expenses</link:label>
    <link:label id="lab_pnm_OtherOperatingExpenses_label_en-US" xlink:label="lab_pnm_OtherOperatingExpenses" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Operating Expenses</link:label>
    <link:label id="lab_pnm_OtherOperatingExpenses_documentation_en-US" xlink:label="lab_pnm_OtherOperatingExpenses" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Operating Expenses</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_OtherOperatingExpenses" xlink:href="pnm-20230331.xsd#pnm_OtherOperatingExpenses"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_OtherOperatingExpenses" xlink:to="lab_pnm_OtherOperatingExpenses" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherLongTermInvestments_b611645c-99d3-4c05-9f16-8fa72985344d_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLongTermInvestments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other investments</link:label>
    <link:label id="lab_us-gaap_OtherLongTermInvestments_label_en-US" xlink:label="lab_us-gaap_OtherLongTermInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Long-Term Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherLongTermInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLongTermInvestments" xlink:to="lab_us-gaap_OtherLongTermInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ManagementMember_a2da6431-a5e4-4eac-a06f-3a74be7c0bb1_terseLabel_en-US" xlink:label="lab_srt_ManagementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Executive</link:label>
    <link:label id="lab_srt_ManagementMember_label_en-US" xlink:label="lab_srt_ManagementMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Management [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ManagementMember" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ManagementMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ManagementMember" xlink:to="lab_srt_ManagementMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShortTermBorrowings_5a774678-9ffc-4c67-a50a-56de5f3d09e5_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermBorrowings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-term debt</link:label>
    <link:label id="lab_us-gaap_ShortTermBorrowings_label_en-US" xlink:label="lab_us-gaap_ShortTermBorrowings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-Term Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShortTermBorrowings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShortTermBorrowings" xlink:to="lab_us-gaap_ShortTermBorrowings" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_Security12bTitle_d792665c-89fb-4145-88d1-fc80ab26bf2b_terseLabel_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:label id="lab_dei_Security12bTitle_label_en-US" xlink:label="lab_dei_Security12bTitle" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of 12(b) Security</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_Security12bTitle" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_Security12bTitle"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_Security12bTitle" xlink:to="lab_dei_Security12bTitle" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_cdd83e1b-6ae0-4292-9937-dc3174b8c0dd_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Defined Benefit Plans Disclosures [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Defined Benefit Plans Disclosures [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:to="lab_us-gaap_ScheduleOfDefinedBenefitPlansDisclosuresTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemCosts_4850cc9a-9806-45df-94fb-999bf6302a0d_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Battery energy storage system, costs</link:label>
    <link:label id="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemCosts_label_en-US" xlink:label="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Battery Energy Storage System, Costs</link:label>
    <link:label id="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemCosts_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Battery Energy Storage System, Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesBatteryEnergyStorageSystemCosts" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesBatteryEnergyStorageSystemCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesBatteryEnergyStorageSystemCosts" xlink:to="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_e84e4c3b-c7ba-4846-9d5c-9d97b31dc873_terseLabel_en-US" xlink:label="lab_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Noncontrolling interest, ownership percentage by noncontrolling owners</link:label>
    <link:label id="lab_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners_label_en-US" xlink:label="lab_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:to="lab_us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeAssetsNoncurrent_102c3632-16b6-48cc-b29a-3305b94ada97_verboseLabel_en-US" xlink:label="lab_us-gaap_DerivativeAssetsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other deferred charges</link:label>
    <link:label id="lab_us-gaap_DerivativeAssetsNoncurrent_label_en-US" xlink:label="lab_us-gaap_DerivativeAssetsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative Asset, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetsNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeAssetsNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeAssetsNoncurrent" xlink:to="lab_us-gaap_DerivativeAssetsNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeTaxContingencyLineItems_d4fc84aa-0a7c-4709-9045-a5bdce5f9b0f_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxContingencyLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Tax Contingency [Line Items]</link:label>
    <link:label id="lab_us-gaap_IncomeTaxContingencyLineItems_label_en-US" xlink:label="lab_us-gaap_IncomeTaxContingencyLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Tax Contingency [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxContingencyLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeTaxContingencyLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxContingencyLineItems" xlink:to="lab_us-gaap_IncomeTaxContingencyLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SegmentReportingDisclosureTextBlock_c1e77ae8-fbad-428e-838e-40a4106ce15a_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segment Information</link:label>
    <link:label id="lab_us-gaap_SegmentReportingDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_SegmentReportingDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segment Reporting Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SegmentReportingDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingDisclosureTextBlock" xlink:to="lab_us-gaap_SegmentReportingDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherReceivables_6bbacafd-c029-404d-8df1-f171eef20231_terseLabel_en-US" xlink:label="lab_us-gaap_OtherReceivables" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other receivables</link:label>
    <link:label id="lab_us-gaap_OtherReceivables_label_en-US" xlink:label="lab_us-gaap_OtherReceivables" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Receivables</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherReceivables" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherReceivables"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherReceivables" xlink:to="lab_us-gaap_OtherReceivables" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesRecoveryOfBaseRate_10d9bf04-22aa-4cc1-bddf-e857ebce1d59_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesRecoveryOfBaseRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Recovery of base rate</link:label>
    <link:label id="lab_pnm_PublicUtilitiesRecoveryOfBaseRate_label_en-US" xlink:label="lab_pnm_PublicUtilitiesRecoveryOfBaseRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Recovery Of Base Rate</link:label>
    <link:label id="lab_pnm_PublicUtilitiesRecoveryOfBaseRate_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesRecoveryOfBaseRate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Recovery Of Base Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesRecoveryOfBaseRate" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesRecoveryOfBaseRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesRecoveryOfBaseRate" xlink:to="lab_pnm_PublicUtilitiesRecoveryOfBaseRate" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_98f1c7b3-4469-4809-ac08-74a7260d8e19_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">LIABILITIES AND STOCKHOLDER&#8217;S EQUITY</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities and Equity [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesAndStockholdersEquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RedMesaWindMember_9428b94c-1e3c-4bf1-b5d9-2fafe728b6f6_terseLabel_en-US" xlink:label="lab_pnm_RedMesaWindMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Red Mesa Wind</link:label>
    <link:label id="lab_pnm_RedMesaWindMember_label_en-US" xlink:label="lab_pnm_RedMesaWindMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Red Mesa Wind [Member]</link:label>
    <link:label id="lab_pnm_RedMesaWindMember_documentation_en-US" xlink:label="lab_pnm_RedMesaWindMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Red Mesa Wind [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RedMesaWindMember" xlink:href="pnm-20230331.xsd#pnm_RedMesaWindMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_RedMesaWindMember" xlink:to="lab_pnm_RedMesaWindMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_UnamortizedCostOfPrepaidRightOfWayAgreements_0d92fe74-b7a2-464c-ba82-d1fdd8dccf1e_terseLabel_en-US" xlink:label="lab_pnm_UnamortizedCostOfPrepaidRightOfWayAgreements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unamortized cost, right-of-way lease payments</link:label>
    <link:label id="lab_pnm_UnamortizedCostOfPrepaidRightOfWayAgreements_label_en-US" xlink:label="lab_pnm_UnamortizedCostOfPrepaidRightOfWayAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unamortized Cost Of Prepaid Right-Of-Way Agreements</link:label>
    <link:label id="lab_pnm_UnamortizedCostOfPrepaidRightOfWayAgreements_documentation_en-US" xlink:label="lab_pnm_UnamortizedCostOfPrepaidRightOfWayAgreements" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unamortized Cost Of Prepaid Right-Of-Way Agreements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_UnamortizedCostOfPrepaidRightOfWayAgreements" xlink:href="pnm-20230331.xsd#pnm_UnamortizedCostOfPrepaidRightOfWayAgreements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_UnamortizedCostOfPrepaidRightOfWayAgreements" xlink:to="lab_pnm_UnamortizedCostOfPrepaidRightOfWayAgreements" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_f0e52c89-cf05-4b37-ace1-9c6b85220129_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Recurring and Nonrecurring [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:to="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_AccruedInterestAndTaxesPayable_079d2963-91fb-4621-8652-f917c2307695_terseLabel_en-US" xlink:label="lab_pnm_AccruedInterestAndTaxesPayable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accrued interest and taxes</link:label>
    <link:label id="lab_pnm_AccruedInterestAndTaxesPayable_label_en-US" xlink:label="lab_pnm_AccruedInterestAndTaxesPayable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accrued Interest And Taxes Payable</link:label>
    <link:label id="lab_pnm_AccruedInterestAndTaxesPayable_documentation_en-US" xlink:label="lab_pnm_AccruedInterestAndTaxesPayable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accrued Interest And Taxes Payable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_AccruedInterestAndTaxesPayable" xlink:href="pnm-20230331.xsd#pnm_AccruedInterestAndTaxesPayable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_AccruedInterestAndTaxesPayable" xlink:to="lab_pnm_AccruedInterestAndTaxesPayable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_1cd034eb-b419-4ddf-a952-5321d7039fb2_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Dilutive Effect of Common Stock Equivalents:</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Diluted [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:to="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_SaleOfStockDistributionAgreementAggregateValue_991a03b4-3987-42bc-b9b0-44e7f3e72f47_terseLabel_en-US" xlink:label="lab_pnm_SaleOfStockDistributionAgreementAggregateValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Distribution agreement</link:label>
    <link:label id="lab_pnm_SaleOfStockDistributionAgreementAggregateValue_label_en-US" xlink:label="lab_pnm_SaleOfStockDistributionAgreementAggregateValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale Of Stock, Distribution Agreement, Aggregate Value</link:label>
    <link:label id="lab_pnm_SaleOfStockDistributionAgreementAggregateValue_documentation_en-US" xlink:label="lab_pnm_SaleOfStockDistributionAgreementAggregateValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale Of Stock, Distribution Agreement, Aggregate Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_SaleOfStockDistributionAgreementAggregateValue" xlink:href="pnm-20230331.xsd#pnm_SaleOfStockDistributionAgreementAggregateValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_SaleOfStockDistributionAgreementAggregateValue" xlink:to="lab_pnm_SaleOfStockDistributionAgreementAggregateValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InventoryNet_a68e6401-e4af-4481-bdef-c6aaa702d107_terseLabel_en-US" xlink:label="lab_us-gaap_InventoryNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Materials, supplies, and fuel stock</link:label>
    <link:label id="lab_us-gaap_InventoryNet_label_en-US" xlink:label="lab_us-gaap_InventoryNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Inventory, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryNet" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InventoryNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InventoryNet" xlink:to="lab_us-gaap_InventoryNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccountsPayableCurrent_636d9b03-6a38-4e02-8992-6c7275ecb8c0_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts payable</link:label>
    <link:label id="lab_us-gaap_AccountsPayableCurrent_label_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts Payable, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsPayableCurrent" xlink:to="lab_us-gaap_AccountsPayableCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_11dc22e9-81a2-47af-baf1-7a73b45c0c96_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Less accumulated depreciation and amortization</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Property, Plant and Equipment, Accumulated Depreciation</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:to="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LesseeOperatingLeaseUnguaranteedResidualValue_4ca74acb-958f-43f0-ad9f-3feeda733790_terseLabel_en-US" xlink:label="lab_pnm_LesseeOperatingLeaseUnguaranteedResidualValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, operating lease, unguaranteed residual value</link:label>
    <link:label id="lab_pnm_LesseeOperatingLeaseUnguaranteedResidualValue_label_en-US" xlink:label="lab_pnm_LesseeOperatingLeaseUnguaranteedResidualValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Unguaranteed Residual Value</link:label>
    <link:label id="lab_pnm_LesseeOperatingLeaseUnguaranteedResidualValue_documentation_en-US" xlink:label="lab_pnm_LesseeOperatingLeaseUnguaranteedResidualValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Unguaranteed Residual Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LesseeOperatingLeaseUnguaranteedResidualValue" xlink:href="pnm-20230331.xsd#pnm_LesseeOperatingLeaseUnguaranteedResidualValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LesseeOperatingLeaseUnguaranteedResidualValue" xlink:to="lab_pnm_LesseeOperatingLeaseUnguaranteedResidualValue" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_OperatingLeaseAssetsAndLiabilitiesLesseeAbstract_708d749b-d55a-4887-9348-b81dd1a30f4e_terseLabel_en-US" xlink:label="lab_pnm_OperatingLeaseAssetsAndLiabilitiesLesseeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating leases:</link:label>
    <link:label id="lab_pnm_OperatingLeaseAssetsAndLiabilitiesLesseeAbstract_label_en-US" xlink:label="lab_pnm_OperatingLeaseAssetsAndLiabilitiesLesseeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Assets And Liabilities, Lessee [Abstract]</link:label>
    <link:label id="lab_pnm_OperatingLeaseAssetsAndLiabilitiesLesseeAbstract_documentation_en-US" xlink:label="lab_pnm_OperatingLeaseAssetsAndLiabilitiesLesseeAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Assets and Liabilities, Lessee [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_OperatingLeaseAssetsAndLiabilitiesLesseeAbstract" xlink:href="pnm-20230331.xsd#pnm_OperatingLeaseAssetsAndLiabilitiesLesseeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_OperatingLeaseAssetsAndLiabilitiesLesseeAbstract" xlink:to="lab_pnm_OperatingLeaseAssetsAndLiabilitiesLesseeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_c1468854-8292-41b3-b788-c22cff4866b6_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Basic (dollars per share)</link:label>
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income (Loss) from Continuing Operations, Per Basic Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:to="lab_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_OtherDeferredCreditsMember_aefe2c94-81d4-477d-ad72-682e7476b10c_terseLabel_en-US" xlink:label="lab_pnm_OtherDeferredCreditsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other deferred credits</link:label>
    <link:label id="lab_pnm_OtherDeferredCreditsMember_label_en-US" xlink:label="lab_pnm_OtherDeferredCreditsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Deferred Credits [Member]</link:label>
    <link:label id="lab_pnm_OtherDeferredCreditsMember_documentation_en-US" xlink:label="lab_pnm_OtherDeferredCreditsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Deferred Credits [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_OtherDeferredCreditsMember" xlink:href="pnm-20230331.xsd#pnm_OtherDeferredCreditsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_OtherDeferredCreditsMember" xlink:to="lab_pnm_OtherDeferredCreditsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_e490bfcf-5a5b-48cf-9dfe-a3229735de07_totalLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Average Shares &#8211; Basic (in shares)</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic"/>
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    <link:label id="lab_us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount_dbff2359-181e-42c8-a145-559ac61a66c0_terseLabel_en-US" xlink:label="lab_us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill fair value exceeded by its carrying value</link:label>
    <link:label id="lab_us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount_label_en-US" xlink:label="lab_us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ReportingUnitPercentageOfFairValueInExcessOfCarryingAmount"/>
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    <link:label id="lab_pnm_DeferredCOVID19CostsMember_3dcb569a-5a3c-43fe-9fdf-35470ed65be2_terseLabel_en-US" xlink:label="lab_pnm_DeferredCOVID19CostsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred COVID-19 Costs</link:label>
    <link:label id="lab_pnm_DeferredCOVID19CostsMember_label_en-US" xlink:label="lab_pnm_DeferredCOVID19CostsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred COVID-19 Costs [Member]</link:label>
    <link:label id="lab_pnm_DeferredCOVID19CostsMember_documentation_en-US" xlink:label="lab_pnm_DeferredCOVID19CostsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred COVID-19 Costs</link:label>
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    <link:label id="lab_us-gaap_DebtInstrumentCollateralAmount_03891ace-8230-49a4-a3fe-170795962148_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentCollateralAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Collateral amount</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentCollateralAmount_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentCollateralAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Collateral Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentCollateralAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentCollateralAmount"/>
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    <link:label id="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_10a011d7-bb03-4b0b-8df5-05a57c205f3c_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Summarized Financial Information</link:label>
    <link:label id="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Variable Interest Entities [Table Text Block]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock" xlink:to="lab_us-gaap_ScheduleOfVariableInterestEntitiesTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesFilingPeriodWithExtension_71d0b70d-aabf-4311-8041-3b53f29823c5_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesFilingPeriodWithExtension" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Filing period, with extension</link:label>
    <link:label id="lab_pnm_PublicUtilitiesFilingPeriodWithExtension_label_en-US" xlink:label="lab_pnm_PublicUtilitiesFilingPeriodWithExtension" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Filing Period, With Extension</link:label>
    <link:label id="lab_pnm_PublicUtilitiesFilingPeriodWithExtension_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesFilingPeriodWithExtension" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Filing Period, With Extension</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesFilingPeriodWithExtension" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesFilingPeriodWithExtension"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesFilingPeriodWithExtension" xlink:to="lab_pnm_PublicUtilitiesFilingPeriodWithExtension" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesActualAnnualIncreaseAnnualDistributionRevenueRequirement_a71f6e79-a661-452e-a542-1d280d6d4efe_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesActualAnnualIncreaseAnnualDistributionRevenueRequirement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Annual Increase in Revenue</link:label>
    <link:label id="lab_pnm_PublicUtilitiesActualAnnualIncreaseAnnualDistributionRevenueRequirement_label_en-US" xlink:label="lab_pnm_PublicUtilitiesActualAnnualIncreaseAnnualDistributionRevenueRequirement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Actual Annual Increase Annual Distribution Revenue Requirement</link:label>
    <link:label id="lab_pnm_PublicUtilitiesActualAnnualIncreaseAnnualDistributionRevenueRequirement_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesActualAnnualIncreaseAnnualDistributionRevenueRequirement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Actual Annual Increase Annual Distribution Revenue Requirement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesActualAnnualIncreaseAnnualDistributionRevenueRequirement" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesActualAnnualIncreaseAnnualDistributionRevenueRequirement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesActualAnnualIncreaseAnnualDistributionRevenueRequirement" xlink:to="lab_pnm_PublicUtilitiesActualAnnualIncreaseAnnualDistributionRevenueRequirement" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedQuarterlyDividendRate_eabace8c-da8d-437a-bc22-d5fba0d671be_terseLabel_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedQuarterlyDividendRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Expected quarterly dividends per share (in dollars per share)</link:label>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedQuarterlyDividendRate_label_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedQuarterlyDividendRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Compensation Arrangement by Share Based Payment Award Fair Value Assumptions Expected Quarterly Dividend Rate</link:label>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedQuarterlyDividendRate_documentation_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedQuarterlyDividendRate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share Based Compensation Arrangement by Share Based Payment Award Fair Value Assumptions Expected Quarterly Dividend Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedQuarterlyDividendRate" xlink:href="pnm-20230331.xsd#pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedQuarterlyDividendRate"/>
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    <link:label id="lab_us-gaap_LossContingencyAccrualAtCarryingValue_054382e0-7ed6-44d9-ab16-36858d9155e6_terseLabel_en-US" xlink:label="lab_us-gaap_LossContingencyAccrualAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss contingency accrual</link:label>
    <link:label id="lab_us-gaap_LossContingencyAccrualAtCarryingValue_label_en-US" xlink:label="lab_us-gaap_LossContingencyAccrualAtCarryingValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingency Accrual</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyAccrualAtCarryingValue" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LossContingencyAccrualAtCarryingValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LossContingencyAccrualAtCarryingValue" xlink:to="lab_us-gaap_LossContingencyAccrualAtCarryingValue" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RetailElectricPublicAuthorityCustomersMember_4e51af27-ae80-4e00-b929-c827a90e178c_terseLabel_en-US" xlink:label="lab_pnm_RetailElectricPublicAuthorityCustomersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public authority</link:label>
    <link:label id="lab_pnm_RetailElectricPublicAuthorityCustomersMember_label_en-US" xlink:label="lab_pnm_RetailElectricPublicAuthorityCustomersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retail Electric, Public Authority Customers [Member]</link:label>
    <link:label id="lab_pnm_RetailElectricPublicAuthorityCustomersMember_documentation_en-US" xlink:label="lab_pnm_RetailElectricPublicAuthorityCustomersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retail Electric, Public Authority Customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RetailElectricPublicAuthorityCustomersMember" xlink:href="pnm-20230331.xsd#pnm_RetailElectricPublicAuthorityCustomersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_RetailElectricPublicAuthorityCustomersMember" xlink:to="lab_pnm_RetailElectricPublicAuthorityCustomersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquityMethodInvestmentOwnershipPercentage_3358c37c-d77c-4bdd-a8dc-197e7f6533e3_terseLabel_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Ownership</link:label>
    <link:label id="lab_us-gaap_EquityMethodInvestmentOwnershipPercentage_label_en-US" xlink:label="lab_us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Method Investment, Ownership Percentage</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:to="lab_us-gaap_EquityMethodInvestmentOwnershipPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ForwardContractIndexedToIssuersEquityShares_db81b4bf-362e-430e-bde2-2eb4bcc7a03d_terseLabel_en-US" xlink:label="lab_us-gaap_ForwardContractIndexedToIssuersEquityShares" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Forward sale agreement (in shares)</link:label>
    <link:label id="lab_us-gaap_ForwardContractIndexedToIssuersEquityShares_label_en-US" xlink:label="lab_us-gaap_ForwardContractIndexedToIssuersEquityShares" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Forward Contract Indexed to Issuer's Equity, Shares</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ForwardContractIndexedToIssuersEquityShares" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ForwardContractIndexedToIssuersEquityShares"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ForwardContractIndexedToIssuersEquityShares" xlink:to="lab_us-gaap_ForwardContractIndexedToIssuersEquityShares" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtAndEquitySecuritiesGainLoss_ecd5375a-b0a5-4853-82ee-0c4f13158375_totalLabel_en-US" xlink:label="lab_us-gaap_DebtAndEquitySecuritiesGainLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net gains (losses) on investment securities</link:label>
    <link:label id="lab_us-gaap_DebtAndEquitySecuritiesGainLoss_label_en-US" xlink:label="lab_us-gaap_DebtAndEquitySecuritiesGainLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt and Equity Securities, Gain (Loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtAndEquitySecuritiesGainLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtAndEquitySecuritiesGainLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtAndEquitySecuritiesGainLoss" xlink:to="lab_us-gaap_DebtAndEquitySecuritiesGainLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PaloVerdeNuclearGeneratingStationMember_13a384de-b1d1-4476-8453-42f7a7645af4_terseLabel_en-US" xlink:label="lab_pnm_PaloVerdeNuclearGeneratingStationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Palo Verde Nuclear Generating Station</link:label>
    <link:label id="lab_pnm_PaloVerdeNuclearGeneratingStationMember_label_en-US" xlink:label="lab_pnm_PaloVerdeNuclearGeneratingStationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Palo Verde Nuclear Generating Station [Member]</link:label>
    <link:label id="lab_pnm_PaloVerdeNuclearGeneratingStationMember_documentation_en-US" xlink:label="lab_pnm_PaloVerdeNuclearGeneratingStationMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Palo Verde Nuclear Generating Station [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PaloVerdeNuclearGeneratingStationMember" xlink:href="pnm-20230331.xsd#pnm_PaloVerdeNuclearGeneratingStationMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PaloVerdeNuclearGeneratingStationMember" xlink:to="lab_pnm_PaloVerdeNuclearGeneratingStationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_OtherIncomeDeductionsExcludingInterest_c0fefabc-0567-40c8-b4ec-431116687f0f_terseLabel_en-US" xlink:label="lab_pnm_OtherIncomeDeductionsExcludingInterest" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other income (deductions)</link:label>
    <link:label id="lab_pnm_OtherIncomeDeductionsExcludingInterest_label_en-US" xlink:label="lab_pnm_OtherIncomeDeductionsExcludingInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Income Deductions Excluding Interest</link:label>
    <link:label id="lab_pnm_OtherIncomeDeductionsExcludingInterest_documentation_en-US" xlink:label="lab_pnm_OtherIncomeDeductionsExcludingInterest" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Income Deductions Excluding Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_OtherIncomeDeductionsExcludingInterest" xlink:href="pnm-20230331.xsd#pnm_OtherIncomeDeductionsExcludingInterest"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_OtherIncomeDeductionsExcludingInterest" xlink:to="lab_pnm_OtherIncomeDeductionsExcludingInterest" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeNotionalAmount_f43d64e1-7fc8-4a8c-8670-5fe30c703912_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeNotionalAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative, notional amount</link:label>
    <link:label id="lab_us-gaap_DerivativeNotionalAmount_label_en-US" xlink:label="lab_us-gaap_DerivativeNotionalAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative, Notional Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNotionalAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeNotionalAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeNotionalAmount" xlink:to="lab_us-gaap_DerivativeNotionalAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RestrictedStockMember_02b79e32-4ac7-44ed-bdc7-7c81c2031d51_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted Stock</link:label>
    <link:label id="lab_us-gaap_RestrictedStockMember_label_en-US" xlink:label="lab_us-gaap_RestrictedStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted Stock [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RestrictedStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RestrictedStockMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedStockMember" xlink:to="lab_us-gaap_RestrictedStockMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShortTermDebtTypeDomain_882333a1-8044-4958-8687-6a7023b8105c_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermDebtTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-term Debt, Type [Domain]</link:label>
    <link:label id="lab_us-gaap_ShortTermDebtTypeDomain_label_en-US" xlink:label="lab_us-gaap_ShortTermDebtTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-Term Debt, Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShortTermDebtTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShortTermDebtTypeDomain" xlink:to="lab_us-gaap_ShortTermDebtTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfOperatingLeasedAssetsTable_d95532a4-05d7-4ce1-9a10-7021528a245d_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfOperatingLeasedAssetsTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Operating Leased Assets [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfOperatingLeasedAssetsTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfOperatingLeasedAssetsTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Operating Leased Assets [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfOperatingLeasedAssetsTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfOperatingLeasedAssetsTable" xlink:to="lab_us-gaap_ScheduleOfOperatingLeasedAssetsTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_InterconnectionBillingsMember_c2c7de96-1c72-477a-9e57-92de579cf6de_terseLabel_en-US" xlink:label="lab_pnm_InterconnectionBillingsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interconnection and facility study billings:</link:label>
    <link:label id="lab_pnm_InterconnectionBillingsMember_label_en-US" xlink:label="lab_pnm_InterconnectionBillingsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interconnection Billings [Member]</link:label>
    <link:label id="lab_pnm_InterconnectionBillingsMember_documentation_en-US" xlink:label="lab_pnm_InterconnectionBillingsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interconnection Billings [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_InterconnectionBillingsMember" xlink:href="pnm-20230331.xsd#pnm_InterconnectionBillingsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_InterconnectionBillingsMember" xlink:to="lab_pnm_InterconnectionBillingsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecreaseAbstract_9e952663-bce7-4b09-9bd8-2511bd526e9e_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Adjustment for Cash Flow Hedges:</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecreaseAbstract_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecreaseAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecreaseAbstract"/>
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    <link:label id="lab_us-gaap_DebtInstrumentTable_2e23053b-7c1f-41d2-bb26-17f06f20f367_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table]</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentTable_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Long-Term Debt Instruments [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentTable" xlink:to="lab_us-gaap_DebtInstrumentTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AssetsNoncurrent_0103d851-d6a4-42a1-b2f3-136b097a978a_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-current assets</link:label>
    <link:label id="lab_us-gaap_AssetsNoncurrent_label_en-US" xlink:label="lab_us-gaap_AssetsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsNoncurrent" xlink:to="lab_us-gaap_AssetsNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesGridModernizationInitialTerm_5d991d00-13fa-4d29-be37-3d6e760f439d_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesGridModernizationInitialTerm" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Grid modernization, initial term</link:label>
    <link:label id="lab_pnm_PublicUtilitiesGridModernizationInitialTerm_label_en-US" xlink:label="lab_pnm_PublicUtilitiesGridModernizationInitialTerm" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Grid Modernization, Initial Term</link:label>
    <link:label id="lab_pnm_PublicUtilitiesGridModernizationInitialTerm_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesGridModernizationInitialTerm" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Grid Modernization, Initial Term</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesGridModernizationInitialTerm" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesGridModernizationInitialTerm"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesGridModernizationInitialTerm" xlink:to="lab_pnm_PublicUtilitiesGridModernizationInitialTerm" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PreferredStockDividendRequirementsOfSubsidiary_5274a51d-7e3b-405c-aed5-e11814bfc902_negatedTerseLabel_en-US" xlink:label="lab_pnm_PreferredStockDividendRequirementsOfSubsidiary" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock Dividend Requirements of Subsidiary</link:label>
    <link:label id="lab_pnm_PreferredStockDividendRequirementsOfSubsidiary_cf660e1b-968c-4ade-a469-79e0b1b9db8c_negatedLabel_en-US" xlink:label="lab_pnm_PreferredStockDividendRequirementsOfSubsidiary" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsidiary preferred stock dividends</link:label>
    <link:label id="lab_pnm_PreferredStockDividendRequirementsOfSubsidiary_label_en-US" xlink:label="lab_pnm_PreferredStockDividendRequirementsOfSubsidiary" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock Dividend Requirements of Subsidiary</link:label>
    <link:label id="lab_pnm_PreferredStockDividendRequirementsOfSubsidiary_documentation_en-US" xlink:label="lab_pnm_PreferredStockDividendRequirementsOfSubsidiary" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred stock cash dividend declared by a subsidiary of the entity during the period. This element includes paid and unpaid dividends declared during the period.</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PreferredStockDividendRequirementsOfSubsidiary" xlink:href="pnm-20230331.xsd#pnm_PreferredStockDividendRequirementsOfSubsidiary"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PreferredStockDividendRequirementsOfSubsidiary" xlink:to="lab_pnm_PreferredStockDividendRequirementsOfSubsidiary" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_MiscellaneousRevenueFromContractsWithCustomersMember_367e2637-6279-42b7-b13a-91c0e3c6fda1_terseLabel_en-US" xlink:label="lab_pnm_MiscellaneousRevenueFromContractsWithCustomersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Miscellaneous</link:label>
    <link:label id="lab_pnm_MiscellaneousRevenueFromContractsWithCustomersMember_label_en-US" xlink:label="lab_pnm_MiscellaneousRevenueFromContractsWithCustomersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Miscellaneous Revenue From Contracts With Customers [Member]</link:label>
    <link:label id="lab_pnm_MiscellaneousRevenueFromContractsWithCustomersMember_documentation_en-US" xlink:label="lab_pnm_MiscellaneousRevenueFromContractsWithCustomersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Miscellaneous Revenue From Contracts With Customers [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_MiscellaneousRevenueFromContractsWithCustomersMember" xlink:href="pnm-20230331.xsd#pnm_MiscellaneousRevenueFromContractsWithCustomersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_MiscellaneousRevenueFromContractsWithCustomersMember" xlink:to="lab_pnm_MiscellaneousRevenueFromContractsWithCustomersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent_ac0d693b-e3e1-43c4-ab88-2961e436280f_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment securities</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-Sale, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_3e9fb4ac-44ce-42af-b7e5-0fec07fe3feb_terseLabel_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock-Based Compensation</link:label>
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock_label_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-Based Payment Arrangement [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:to="lab_us-gaap_DisclosureOfCompensationRelatedCostsShareBasedPaymentsTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent_c9d9fe66-2284-482e-a5fc-b112dbd38912_terseLabel_en-US" xlink:label="lab_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-term debt - affiliate</link:label>
    <link:label id="lab_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent_label_en-US" xlink:label="lab_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Notes Payable, Related Parties, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NotesPayableRelatedPartiesClassifiedCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent" xlink:to="lab_us-gaap_NotesPayableRelatedPartiesClassifiedCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_BusinessCombinationsAbstract_label_en-US" xlink:label="lab_us-gaap_BusinessCombinationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Combinations [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_BusinessCombinationsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_BusinessCombinationsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_BusinessCombinationsAbstract" xlink:to="lab_us-gaap_BusinessCombinationsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsAdditionalIncentiveTargetedEnergySavings_11cb3174-d99a-4c48-af15-adab707333f6_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsAdditionalIncentiveTargetedEnergySavings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy efficiency and load management programs additional incentive targeted energy savings (in Gigawatts)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsAdditionalIncentiveTargetedEnergySavings_label_en-US" xlink:label="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsAdditionalIncentiveTargetedEnergySavings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Energy Efficiency And Load Management Programs Additional Incentive Targeted Energy Savings</link:label>
    <link:label id="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsAdditionalIncentiveTargetedEnergySavings_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsAdditionalIncentiveTargetedEnergySavings" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Energy Efficiency And Load Management Programs Additional Incentive Targeted Energy Savings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsAdditionalIncentiveTargetedEnergySavings" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsAdditionalIncentiveTargetedEnergySavings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsAdditionalIncentiveTargetedEnergySavings" xlink:to="lab_pnm_PublicUtilitiesEnergyEfficiencyAndLoadManagementProgramsAdditionalIncentiveTargetedEnergySavings" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_SanJuanGeneratingStationAndFourCornersMember_224121eb-cb73-415c-bb36-88c3cd8a79df_terseLabel_en-US" xlink:label="lab_pnm_SanJuanGeneratingStationAndFourCornersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">San Juan Generating Station and Four Corners</link:label>
    <link:label id="lab_pnm_SanJuanGeneratingStationAndFourCornersMember_label_en-US" xlink:label="lab_pnm_SanJuanGeneratingStationAndFourCornersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">San Juan Generating Station And Four Corners [Member]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_pnm_SanJuanGeneratingStationAndFourCornersMember" xlink:href="pnm-20230331.xsd#pnm_SanJuanGeneratingStationAndFourCornersMember"/>
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    <link:label id="lab_us-gaap_JointlyOwnedUtilityPlantDomain_43520932-0d78-437a-b649-e34f498e5f2c_terseLabel_en-US" xlink:label="lab_us-gaap_JointlyOwnedUtilityPlantDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Jointly Owned Utility Plant [Domain]</link:label>
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    <link:label id="lab_pnm_ShortTermLeaseTypeDomain_06261cfc-10fa-464e-8c68-30c624820034_terseLabel_en-US" xlink:label="lab_pnm_ShortTermLeaseTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-Term Lease Type [Domain]</link:label>
    <link:label id="lab_pnm_ShortTermLeaseTypeDomain_label_en-US" xlink:label="lab_pnm_ShortTermLeaseTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-Term Lease Type [Domain]</link:label>
    <link:label id="lab_pnm_ShortTermLeaseTypeDomain_documentation_en-US" xlink:label="lab_pnm_ShortTermLeaseTypeDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-Term Lease Type [Domain]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesCommitmentsAndContingenciesTable" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesCommitmentsAndContingenciesTable"/>
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    <link:label id="lab_us-gaap_NoncontrollingInterestMember_e32aafe2-f126-4a61-a95e-f6209cc0b4a7_terseLabel_en-US" xlink:label="lab_us-gaap_NoncontrollingInterestMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non- controlling Interest in Valencia</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_pnm_EnergyEfficiencyCostRecoveryFactorApprovedPerformanceBonus" xlink:href="pnm-20230331.xsd#pnm_EnergyEfficiencyCostRecoveryFactorApprovedPerformanceBonus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_EnergyEfficiencyCostRecoveryFactorApprovedPerformanceBonus" xlink:to="lab_pnm_EnergyEfficiencyCostRecoveryFactorApprovedPerformanceBonus" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentTerm_451685f8-dae0-431d-bf81-242b673640ec_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentTerm" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Term of loan</link:label>
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    <link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_e281d880-8c6f-4771-b373-43b94ab86ca2_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party [Axis]</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="lab_us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RequiredPercentageby2040Member_a7b12a99-912c-4074-8ffd-dec24b976ad1_terseLabel_en-US" xlink:label="lab_pnm_RequiredPercentageby2040Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Required Percentage by 2040</link:label>
    <link:label id="lab_pnm_RequiredPercentageby2040Member_label_en-US" xlink:label="lab_pnm_RequiredPercentageby2040Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Required Percentage by 2040 [Member]</link:label>
    <link:label id="lab_pnm_RequiredPercentageby2040Member_documentation_en-US" xlink:label="lab_pnm_RequiredPercentageby2040Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Required Percentage by 2040 [Member]</link:label>
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    <link:label id="lab_pnm_SanJuanGeneratingStationMember_9f009835-e3d4-4de9-8349-52d8e764a7b0_terseLabel_en-US" xlink:label="lab_pnm_SanJuanGeneratingStationMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">San Juan Generating Station</link:label>
    <link:label id="lab_pnm_SanJuanGeneratingStationMember_label_en-US" xlink:label="lab_pnm_SanJuanGeneratingStationMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">San Juan Generating Station [Member]</link:label>
    <link:label id="lab_pnm_SanJuanGeneratingStationMember_documentation_en-US" xlink:label="lab_pnm_SanJuanGeneratingStationMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">San Juan Generating Station [Member]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_SanJuanGeneratingStationMember" xlink:to="lab_pnm_SanJuanGeneratingStationMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements_00462632-2dbf-4bef-a904-6350b6d27405_terseLabel_en-US" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Restricted stock (in shares)</link:label>
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    <link:label id="lab_pnm_RenewableEnergyPurchasesMember_b0cfc46f-db0d-47fb-a670-8330e0d6e345_terseLabel_en-US" xlink:label="lab_pnm_RenewableEnergyPurchasesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Renewable energy purchases:</link:label>
    <link:label id="lab_pnm_RenewableEnergyPurchasesMember_label_en-US" xlink:label="lab_pnm_RenewableEnergyPurchasesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Renewable Energy Purchases [Member]</link:label>
    <link:label id="lab_pnm_RenewableEnergyPurchasesMember_documentation_en-US" xlink:label="lab_pnm_RenewableEnergyPurchasesMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Renewable Energy Purchases [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RenewableEnergyPurchasesMember" xlink:href="pnm-20230331.xsd#pnm_RenewableEnergyPurchasesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_RenewableEnergyPurchasesMember" xlink:to="lab_pnm_RenewableEnergyPurchasesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_JointlyOwnedUtilityPlantAxis_799739fc-d2fc-4525-9bf6-982c786bd024_terseLabel_en-US" xlink:label="lab_us-gaap_JointlyOwnedUtilityPlantAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Jointly Owned Utility Plant [Axis]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_JointlyOwnedUtilityPlantAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_JointlyOwnedUtilityPlantAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_JointlyOwnedUtilityPlantAxis" xlink:to="lab_us-gaap_JointlyOwnedUtilityPlantAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueInputsLevel2Member_8a4779f7-6eff-428a-9fc9-9eed828ca24c_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Level 2</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel2Member_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel2Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Inputs, Level 2 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel2Member" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValueInputsLevel2Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel2Member" xlink:to="lab_us-gaap_FairValueInputsLevel2Member" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesInitialFundingRequirement_cbafbddc-8ef0-48ee-94a5-b99348dbc9e6_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesInitialFundingRequirement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Initial funding requirement</link:label>
    <link:label id="lab_pnm_PublicUtilitiesInitialFundingRequirement_label_en-US" xlink:label="lab_pnm_PublicUtilitiesInitialFundingRequirement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Initial Funding Requirement</link:label>
    <link:label id="lab_pnm_PublicUtilitiesInitialFundingRequirement_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesInitialFundingRequirement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Initial Funding Requirement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesInitialFundingRequirement" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesInitialFundingRequirement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesInitialFundingRequirement" xlink:to="lab_pnm_PublicUtilitiesInitialFundingRequirement" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CurrentFiscalYearEndDate_c0c92262-ef6c-448a-a88a-eaa5c2b7e9f7_terseLabel_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:label id="lab_dei_CurrentFiscalYearEndDate_label_en-US" xlink:label="lab_dei_CurrentFiscalYearEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current Fiscal Year End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CurrentFiscalYearEndDate" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CurrentFiscalYearEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CurrentFiscalYearEndDate" xlink:to="lab_dei_CurrentFiscalYearEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_SeniorUnsecuredNotedPollutionControlRevenueBondsMember_11bd09bd-f8c7-4b3c-813e-604387405659_terseLabel_en-US" xlink:label="lab_pnm_SeniorUnsecuredNotedPollutionControlRevenueBondsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Senior Unsecured Noted, Pollution Control Revenue Bonds</link:label>
    <link:label id="lab_pnm_SeniorUnsecuredNotedPollutionControlRevenueBondsMember_label_en-US" xlink:label="lab_pnm_SeniorUnsecuredNotedPollutionControlRevenueBondsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Senior Unsecured Noted, Pollution Control Revenue Bonds [Member]</link:label>
    <link:label id="lab_pnm_SeniorUnsecuredNotedPollutionControlRevenueBondsMember_documentation_en-US" xlink:label="lab_pnm_SeniorUnsecuredNotedPollutionControlRevenueBondsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Senior Unsecured Noted, Pollution Control Revenue Bonds</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_SeniorUnsecuredNotedPollutionControlRevenueBondsMember" xlink:href="pnm-20230331.xsd#pnm_SeniorUnsecuredNotedPollutionControlRevenueBondsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_SeniorUnsecuredNotedPollutionControlRevenueBondsMember" xlink:to="lab_pnm_SeniorUnsecuredNotedPollutionControlRevenueBondsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfMegawattsPeakDuringPeriod_29bb414d-3a80-4f20-aabf-76d850e7f12d_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfMegawattsPeakDuringPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of megawatts, peak during period (in megawatts)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfMegawattsPeakDuringPeriod_label_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfMegawattsPeakDuringPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Number Of Megawatts, Peak During Period</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfMegawattsPeakDuringPeriod_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfMegawattsPeakDuringPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Number Of Megawatts, Peak During Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesNumberOfMegawattsPeakDuringPeriod" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesNumberOfMegawattsPeakDuringPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesNumberOfMegawattsPeakDuringPeriod" xlink:to="lab_pnm_PublicUtilitiesNumberOfMegawattsPeakDuringPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_AssetsAndLiabilitiesLesseeTable_23f3bb52-ec44-48d9-89f5-61cbf6dc8107_terseLabel_en-US" xlink:label="lab_pnm_AssetsAndLiabilitiesLesseeTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets and Liabilities, Lessee [Table]</link:label>
    <link:label id="lab_pnm_AssetsAndLiabilitiesLesseeTable_label_en-US" xlink:label="lab_pnm_AssetsAndLiabilitiesLesseeTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets And Liabilities, Lessee [Table]</link:label>
    <link:label id="lab_pnm_AssetsAndLiabilitiesLesseeTable_documentation_en-US" xlink:label="lab_pnm_AssetsAndLiabilitiesLesseeTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets and Liabilities, Lessee [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_AssetsAndLiabilitiesLesseeTable" xlink:href="pnm-20230331.xsd#pnm_AssetsAndLiabilitiesLesseeTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_AssetsAndLiabilitiesLesseeTable" xlink:to="lab_pnm_AssetsAndLiabilitiesLesseeTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_OtherDeferredCostsNetIncludingDeferredFinanceCosts_ce9693d0-e18f-419f-b126-18c155418b70_terseLabel_en-US" xlink:label="lab_pnm_OtherDeferredCostsNetIncludingDeferredFinanceCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other deferred charges</link:label>
    <link:label id="lab_pnm_OtherDeferredCostsNetIncludingDeferredFinanceCosts_label_en-US" xlink:label="lab_pnm_OtherDeferredCostsNetIncludingDeferredFinanceCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Deferred Costs Net Including Deferred Finance Costs</link:label>
    <link:label id="lab_pnm_OtherDeferredCostsNetIncludingDeferredFinanceCosts_documentation_en-US" xlink:label="lab_pnm_OtherDeferredCostsNetIncludingDeferredFinanceCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Deferred Costs Net Including Deferred Finance Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_OtherDeferredCostsNetIncludingDeferredFinanceCosts" xlink:href="pnm-20230331.xsd#pnm_OtherDeferredCostsNetIncludingDeferredFinanceCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_OtherDeferredCostsNetIncludingDeferredFinanceCosts" xlink:to="lab_pnm_OtherDeferredCostsNetIncludingDeferredFinanceCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage_9508c800-7a07-4720-b826-a5b061f14edd_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Approved equity capital structure</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Approved Equity Capital Structure, Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage" xlink:to="lab_us-gaap_PublicUtilitiesApprovedEquityCapitalStructurePercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LeaseCostLineItems_e272f21f-d11d-4e7d-a5da-abf0cdf3dfb8_terseLabel_en-US" xlink:label="lab_pnm_LeaseCostLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease, Cost [Line Items]</link:label>
    <link:label id="lab_pnm_LeaseCostLineItems_label_en-US" xlink:label="lab_pnm_LeaseCostLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease, Cost [Line Items]</link:label>
    <link:label id="lab_pnm_LeaseCostLineItems_documentation_en-US" xlink:label="lab_pnm_LeaseCostLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">[Line Items] for Lease, Cost [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LeaseCostLineItems" xlink:href="pnm-20230331.xsd#pnm_LeaseCostLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LeaseCostLineItems" xlink:to="lab_pnm_LeaseCostLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized_fe66f885-e9f6-4428-b9e2-91ad073b1866_terseLabel_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative preferred stock of subsidiary, shares authorized (in shares)</link:label>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized_label_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Authorized</link:label>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized_documentation_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Authorized</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized" xlink:href="pnm-20230331.xsd#pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized" xlink:to="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesAuthorized" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_d20a5dc5-7633-4dff-bf72-abd2f219e5ec_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stock based compensation expense</link:label>
    <link:label id="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">APIC, Share-Based Payment Arrangement, Increase for Cost Recognition</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:to="lab_us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ReplacementResourcePortfolioThreeMember_c4cbc1e0-cc8d-4409-8b4e-a3c7436509df_terseLabel_en-US" xlink:label="lab_pnm_ReplacementResourcePortfolioThreeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Replacement Resource Portfolio Three</link:label>
    <link:label id="lab_pnm_ReplacementResourcePortfolioThreeMember_label_en-US" xlink:label="lab_pnm_ReplacementResourcePortfolioThreeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Replacement Resource Portfolio Three [Member]</link:label>
    <link:label id="lab_pnm_ReplacementResourcePortfolioThreeMember_documentation_en-US" xlink:label="lab_pnm_ReplacementResourcePortfolioThreeMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Replacement Resource Portfolio Three</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ReplacementResourcePortfolioThreeMember" xlink:href="pnm-20230331.xsd#pnm_ReplacementResourcePortfolioThreeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ReplacementResourcePortfolioThreeMember" xlink:to="lab_pnm_ReplacementResourcePortfolioThreeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesCurrent_4bada185-60b8-4411-97bf-e5e716cda5cd_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total current liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesCurrent_e5bfea48-5f47-47a0-9f89-754569feb756_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total current liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesCurrent_fa64c9fb-2eb7-4309-af0d-9f283c6fd193_verboseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current liabilities</link:label>
    <link:label id="lab_us-gaap_LiabilitiesCurrent_label_en-US" xlink:label="lab_us-gaap_LiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesCurrent" xlink:to="lab_us-gaap_LiabilitiesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_DebtInstrumentExtensionPeriod_9e8fb76d-d3bf-4c3a-b4d3-8ede9d6c1011_terseLabel_en-US" xlink:label="lab_pnm_DebtInstrumentExtensionPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Extension period</link:label>
    <link:label id="lab_pnm_DebtInstrumentExtensionPeriod_label_en-US" xlink:label="lab_pnm_DebtInstrumentExtensionPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Extension Period</link:label>
    <link:label id="lab_pnm_DebtInstrumentExtensionPeriod_documentation_en-US" xlink:label="lab_pnm_DebtInstrumentExtensionPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Extension Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_DebtInstrumentExtensionPeriod" xlink:href="pnm-20230331.xsd#pnm_DebtInstrumentExtensionPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_DebtInstrumentExtensionPeriod" xlink:to="lab_pnm_DebtInstrumentExtensionPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccountsPayableCurrentAndNoncurrent_6f244273-c40b-4b51-b85f-992317f01ea5_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrentAndNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current liabilities</link:label>
    <link:label id="lab_us-gaap_AccountsPayableCurrentAndNoncurrent_label_en-US" xlink:label="lab_us-gaap_AccountsPayableCurrentAndNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts Payable</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrentAndNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsPayableCurrentAndNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsPayableCurrentAndNoncurrent" xlink:to="lab_us-gaap_AccountsPayableCurrentAndNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfFieldWorkReports_e96d0ccf-fbbb-43a2-bff1-3e65108e839e_terseLabel_en-US" xlink:label="lab_pnm_NumberOfFieldWorkReports" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of field work reports</link:label>
    <link:label id="lab_pnm_NumberOfFieldWorkReports_label_en-US" xlink:label="lab_pnm_NumberOfFieldWorkReports" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Field Work Reports</link:label>
    <link:label id="lab_pnm_NumberOfFieldWorkReports_documentation_en-US" xlink:label="lab_pnm_NumberOfFieldWorkReports" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Field Work Reports</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfFieldWorkReports" xlink:href="pnm-20230331.xsd#pnm_NumberOfFieldWorkReports"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfFieldWorkReports" xlink:to="lab_pnm_NumberOfFieldWorkReports" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfLeasesRenewed_00658383-c5ed-447a-84f4-fa77b67277f2_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfLeasesRenewed" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of leases renewed</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfLeasesRenewed_label_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfLeasesRenewed" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Number Of Leases Renewed</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfLeasesRenewed_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfLeasesRenewed" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Number Of Leases Renewed</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesNumberOfLeasesRenewed" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesNumberOfLeasesRenewed"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesNumberOfLeasesRenewed" xlink:to="lab_pnm_PublicUtilitiesNumberOfLeasesRenewed" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativesAndFairValueTextBlock_dcfe2ca4-6957-49e6-b6a8-9f6023ad0bb2_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativesAndFairValueTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value of Derivative and Other Financial Instruments</link:label>
    <link:label id="lab_us-gaap_DerivativesAndFairValueTextBlock_label_en-US" xlink:label="lab_us-gaap_DerivativesAndFairValueTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivatives and Fair Value [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativesAndFairValueTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativesAndFairValueTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativesAndFairValueTextBlock" xlink:to="lab_us-gaap_DerivativesAndFairValueTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract_3790eb68-ec6e-4951-9594-4239d3f17e95_terseLabel_en-US" xlink:label="lab_pnm_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-cash information related to right-of-use assets obtained in exchange for lease obligations:</link:label>
    <link:label id="lab_pnm_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract_label_en-US" xlink:label="lab_pnm_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Right-Of-Use Asset Obtained In Exchange For Lease Liability [Abstract]</link:label>
    <link:label id="lab_pnm_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract_documentation_en-US" xlink:label="lab_pnm_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Right-Of-Use Asset Obtained In Exchange For Lease Liability [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract" xlink:href="pnm-20230331.xsd#pnm_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract" xlink:to="lab_pnm_RightOfUseAssetObtainedInExchangeForLeaseLiabilityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_ac133c4c-1c3b-419a-9911-cb75354c9c48_terseLabel_en-US" xlink:label="lab_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net gains (losses) from equity securities still held</link:label>
    <link:label id="lab_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss_label_en-US" xlink:label="lab_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Securities, FV-NI, Unrealized Gain (Loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss" xlink:to="lab_us-gaap_EquitySecuritiesFvNiUnrealizedGainLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PNMRevolvingCreditFacilityMember_272ba360-f0cd-4208-9dba-4e2351e9ad10_terseLabel_en-US" xlink:label="lab_pnm_PNMRevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM Revolving Credit Facility</link:label>
    <link:label id="lab_pnm_PNMRevolvingCreditFacilityMember_label_en-US" xlink:label="lab_pnm_PNMRevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM Revolving Credit Facility [Member]</link:label>
    <link:label id="lab_pnm_PNMRevolvingCreditFacilityMember_documentation_en-US" xlink:label="lab_pnm_PNMRevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM Revolving Credit Facility</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PNMRevolvingCreditFacilityMember" xlink:href="pnm-20230331.xsd#pnm_PNMRevolvingCreditFacilityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PNMRevolvingCreditFacilityMember" xlink:to="lab_pnm_PNMRevolvingCreditFacilityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_SanJuanGeneratingStationUnit4Member_fcdc6152-04f5-4eba-9a6e-e4181672ba52_terseLabel_en-US" xlink:label="lab_pnm_SanJuanGeneratingStationUnit4Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">San Juan Generating Station, Unit 4</link:label>
    <link:label id="lab_pnm_SanJuanGeneratingStationUnit4Member_label_en-US" xlink:label="lab_pnm_SanJuanGeneratingStationUnit4Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">San Juan Generating Station, Unit 4 [Member]</link:label>
    <link:label id="lab_pnm_SanJuanGeneratingStationUnit4Member_documentation_en-US" xlink:label="lab_pnm_SanJuanGeneratingStationUnit4Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">San Juan Generating Station, Unit 4</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_SanJuanGeneratingStationUnit4Member" xlink:href="pnm-20230331.xsd#pnm_SanJuanGeneratingStationUnit4Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_SanJuanGeneratingStationUnit4Member" xlink:to="lab_pnm_SanJuanGeneratingStationUnit4Member" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesReturnOnEquityPercentage_287ad77f-f1e7-4431-8913-e18ec44dac81_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesReturnOnEquityPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Return on equity</link:label>
    <link:label id="lab_pnm_PublicUtilitiesReturnOnEquityPercentage_label_en-US" xlink:label="lab_pnm_PublicUtilitiesReturnOnEquityPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Return On Equity, Percentage</link:label>
    <link:label id="lab_pnm_PublicUtilitiesReturnOnEquityPercentage_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesReturnOnEquityPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Return On Equity, Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesReturnOnEquityPercentage" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesReturnOnEquityPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesReturnOnEquityPercentage" xlink:to="lab_pnm_PublicUtilitiesReturnOnEquityPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ElectricTransmissionServiceMember_673980e0-b95d-4a67-aedb-2d1cd382741f_terseLabel_en-US" xlink:label="lab_pnm_ElectricTransmissionServiceMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Transmission</link:label>
    <link:label id="lab_pnm_ElectricTransmissionServiceMember_label_en-US" xlink:label="lab_pnm_ElectricTransmissionServiceMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Electric Transmission Service [Member]</link:label>
    <link:label id="lab_pnm_ElectricTransmissionServiceMember_documentation_en-US" xlink:label="lab_pnm_ElectricTransmissionServiceMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Electric Transmission Service</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ElectricTransmissionServiceMember" xlink:href="pnm-20230331.xsd#pnm_ElectricTransmissionServiceMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ElectricTransmissionServiceMember" xlink:to="lab_pnm_ElectricTransmissionServiceMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_ea77c1e5-e4de-47ec-a2a9-bf792e1f4a90_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt issuance costs and other, net</link:label>
    <link:label id="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_label_en-US" xlink:label="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from (Payments for) Other Financing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:to="lab_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherAssetsNoncurrentAbstract_a445bb77-3926-430d-a369-459b089f775f_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred Charges and Other Assets:</link:label>
    <link:label id="lab_us-gaap_OtherAssetsNoncurrentAbstract_label_en-US" xlink:label="lab_us-gaap_OtherAssetsNoncurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Assets, Noncurrent [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherAssetsNoncurrentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssetsNoncurrentAbstract" xlink:to="lab_us-gaap_OtherAssetsNoncurrentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeCollateralObligationToReturnCash_801d6070-ead5-42a6-bdf6-4b52326d417b_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeCollateralObligationToReturnCash" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Obligations to return cash</link:label>
    <link:label id="lab_us-gaap_DerivativeCollateralObligationToReturnCash_label_en-US" xlink:label="lab_us-gaap_DerivativeCollateralObligationToReturnCash" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeCollateralObligationToReturnCash" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeCollateralObligationToReturnCash"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeCollateralObligationToReturnCash" xlink:to="lab_us-gaap_DerivativeCollateralObligationToReturnCash" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_eb32c6f9-a5e5-4c21-80ed-f97070281fac_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financing leases</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Weighted Average Remaining Lease Term</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1" xlink:to="lab_us-gaap_FinanceLeaseWeightedAverageRemainingLeaseTerm1" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RequiredPercentageby2025Member_2cd3d885-1c06-45ec-906f-0dd91d689258_terseLabel_en-US" xlink:label="lab_pnm_RequiredPercentageby2025Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Required Percentage by 2025</link:label>
    <link:label id="lab_pnm_RequiredPercentageby2025Member_label_en-US" xlink:label="lab_pnm_RequiredPercentageby2025Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Required Percentage by 2025 [Member]</link:label>
    <link:label id="lab_pnm_RequiredPercentageby2025Member_documentation_en-US" xlink:label="lab_pnm_RequiredPercentageby2025Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Required Percentage by 2025 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RequiredPercentageby2025Member" xlink:href="pnm-20230331.xsd#pnm_RequiredPercentageby2025Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_RequiredPercentageby2025Member" xlink:to="lab_pnm_RequiredPercentageby2025Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueDisclosuresAbstract_07b54e6f-816b-4926-8725-af0600809f7f_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Disclosures [Abstract]</link:label>
    <link:label id="lab_us-gaap_FairValueDisclosuresAbstract_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value Disclosures [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValueDisclosuresAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueDisclosuresAbstract" xlink:to="lab_us-gaap_FairValueDisclosuresAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterFifteenYearsThroughTwentyYearsFairValue_31302687-d652-4959-b1e4-bd6c06700464_terseLabel_en-US" xlink:label="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterFifteenYearsThroughTwentyYearsFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">After 15 years through 20 years</link:label>
    <link:label id="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterFifteenYearsThroughTwentyYearsFairValue_label_en-US" xlink:label="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterFifteenYearsThroughTwentyYearsFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, after Fifteen Years Through Twenty Years, Fair Value</link:label>
    <link:label id="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterFifteenYearsThroughTwentyYearsFairValue_documentation_en-US" xlink:label="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterFifteenYearsThroughTwentyYearsFairValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, after Fifteen Years Through Twenty Years, Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterFifteenYearsThroughTwentyYearsFairValue" xlink:href="pnm-20230331.xsd#pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterFifteenYearsThroughTwentyYearsFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterFifteenYearsThroughTwentyYearsFairValue" xlink:to="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterFifteenYearsThroughTwentyYearsFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_DebtInstrumentsNMPRCApprovedCreditFacility_927e1ee3-6c11-4222-aae4-969efe6ae46c_terseLabel_en-US" xlink:label="lab_pnm_DebtInstrumentsNMPRCApprovedCreditFacility" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">NMPRC approved credit facility</link:label>
    <link:label id="lab_pnm_DebtInstrumentsNMPRCApprovedCreditFacility_label_en-US" xlink:label="lab_pnm_DebtInstrumentsNMPRCApprovedCreditFacility" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instruments, NMPRC Approved Credit Facility</link:label>
    <link:label id="lab_pnm_DebtInstrumentsNMPRCApprovedCreditFacility_documentation_en-US" xlink:label="lab_pnm_DebtInstrumentsNMPRCApprovedCreditFacility" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instruments, NMPRC Approved Credit Facility</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_DebtInstrumentsNMPRCApprovedCreditFacility" xlink:href="pnm-20230331.xsd#pnm_DebtInstrumentsNMPRCApprovedCreditFacility"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_DebtInstrumentsNMPRCApprovedCreditFacility" xlink:to="lab_pnm_DebtInstrumentsNMPRCApprovedCreditFacility" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CreditFacilityAxis_05d8d9c6-5cc7-461c-a5e6-8a79cfb2a5ae_terseLabel_en-US" xlink:label="lab_us-gaap_CreditFacilityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Credit Facility [Axis]</link:label>
    <link:label id="lab_us-gaap_CreditFacilityAxis_label_en-US" xlink:label="lab_us-gaap_CreditFacilityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Credit Facility [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CreditFacilityAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CreditFacilityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CreditFacilityAxis" xlink:to="lab_us-gaap_CreditFacilityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_2471db7c-a79a-4e20-95b3-5b26c465d2d6_terseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net change in unrealized holding gains (losses) arising during the period, net of income tax (expense) benefit of $(1,059) and $1,657</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_09e3f3ff-ad47-449a-a95b-c2d9df349c5e_verboseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net change in unrealized holding gains (losses) arising during the period, net of income tax (expense) benefit of $(1,059) and $1,657</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:to="lab_us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RelatedPartyTransactionAmountsOfTransaction_d6bc6ad1-5b24-49f5-b024-629f4ba94798_terseLabel_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionAmountsOfTransaction" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amount of related party transaction</link:label>
    <link:label id="lab_us-gaap_RelatedPartyTransactionAmountsOfTransaction_label_en-US" xlink:label="lab_us-gaap_RelatedPartyTransactionAmountsOfTransaction" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Related Party Transaction, Amounts of Transaction</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RelatedPartyTransactionAmountsOfTransaction"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RelatedPartyTransactionAmountsOfTransaction" xlink:to="lab_us-gaap_RelatedPartyTransactionAmountsOfTransaction" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EquityAbstract_dbf956c0-ed5b-4592-af5f-29634e0e38e4_terseLabel_en-US" xlink:label="lab_us-gaap_EquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity:</link:label>
    <link:label id="lab_us-gaap_EquityAbstract_label_en-US" xlink:label="lab_us-gaap_EquityAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EquityAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EquityAbstract" xlink:to="lab_us-gaap_EquityAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ShortTermLeaseTypeAxis_4f63da48-8ff8-4f35-8baf-88da4558ec73_terseLabel_en-US" xlink:label="lab_pnm_ShortTermLeaseTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-Term Lease Type [Axis]</link:label>
    <link:label id="lab_pnm_ShortTermLeaseTypeAxis_label_en-US" xlink:label="lab_pnm_ShortTermLeaseTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-Term Lease Type [Axis]</link:label>
    <link:label id="lab_pnm_ShortTermLeaseTypeAxis_documentation_en-US" xlink:label="lab_pnm_ShortTermLeaseTypeAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-Term Lease Type</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ShortTermLeaseTypeAxis" xlink:href="pnm-20230331.xsd#pnm_ShortTermLeaseTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ShortTermLeaseTypeAxis" xlink:to="lab_pnm_ShortTermLeaseTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_775fb19b-4622-4975-abae-dcbb4018ffc5_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Exercised (in shares)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PNMtoPNMRMember_54ef65a4-28f8-4e3b-9470-dfbd2102558a_terseLabel_en-US" xlink:label="lab_pnm_PNMtoPNMRMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM to PNMR</link:label>
    <link:label id="lab_pnm_PNMtoPNMRMember_label_en-US" xlink:label="lab_pnm_PNMtoPNMRMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM to PNMR [Member]</link:label>
    <link:label id="lab_pnm_PNMtoPNMRMember_documentation_en-US" xlink:label="lab_pnm_PNMtoPNMRMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM to PNMR [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PNMtoPNMRMember" xlink:href="pnm-20230331.xsd#pnm_PNMtoPNMRMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PNMtoPNMRMember" xlink:to="lab_pnm_PNMtoPNMRMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_aeeb3e36-a43b-4f27-8bbf-e251141cd919_terseLabel_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:label id="lab_dei_EntityTaxIdentificationNumber_label_en-US" xlink:label="lab_dei_EntityTaxIdentificationNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Tax Identification Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityTaxIdentificationNumber" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityTaxIdentificationNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityTaxIdentificationNumber" xlink:to="lab_dei_EntityTaxIdentificationNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativesFairValueLineItems_533d7351-4b3f-409a-857f-96ae9eee28d7_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativesFairValueLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivatives, Fair Value [Line Items]</link:label>
    <link:label id="lab_us-gaap_DerivativesFairValueLineItems_label_en-US" xlink:label="lab_us-gaap_DerivativesFairValueLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivatives, Fair Value [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativesFairValueLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativesFairValueLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativesFairValueLineItems" xlink:to="lab_us-gaap_DerivativesFairValueLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeFixedInterestRate_d18a16db-53bc-4a15-bb9a-4ec53393567c_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeFixedInterestRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fixed interest rate</link:label>
    <link:label id="lab_us-gaap_DerivativeFixedInterestRate_label_en-US" xlink:label="lab_us-gaap_DerivativeFixedInterestRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative, Fixed Interest Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeFixedInterestRate" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeFixedInterestRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeFixedInterestRate" xlink:to="lab_us-gaap_DerivativeFixedInterestRate" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfShortTermDebtTable_95e08e27-6c00-4581-bf3c-902789e6565b_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShortTermDebtTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Short-term Debt [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfShortTermDebtTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfShortTermDebtTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Short-Term Debt [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShortTermDebtTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfShortTermDebtTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfShortTermDebtTable" xlink:to="lab_us-gaap_ScheduleOfShortTermDebtTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesMegawattRepurchase_fe2fb7b6-4e3d-4761-8596-a20f77748b14_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesMegawattRepurchase" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Megawatt repurchase</link:label>
    <link:label id="lab_pnm_PublicUtilitiesMegawattRepurchase_label_en-US" xlink:label="lab_pnm_PublicUtilitiesMegawattRepurchase" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Megawatt Repurchase</link:label>
    <link:label id="lab_pnm_PublicUtilitiesMegawattRepurchase_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesMegawattRepurchase" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Megawatt Repurchase</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesMegawattRepurchase" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesMegawattRepurchase"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesMegawattRepurchase" xlink:to="lab_pnm_PublicUtilitiesMegawattRepurchase" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_MarketableSecuritiesAbstract_271e76ec-fa15-4495-8574-0a48b86cf864_terseLabel_en-US" xlink:label="lab_us-gaap_MarketableSecuritiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity securities:</link:label>
    <link:label id="lab_us-gaap_MarketableSecuritiesAbstract_label_en-US" xlink:label="lab_us-gaap_MarketableSecuritiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Marketable Securities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_MarketableSecuritiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_MarketableSecuritiesAbstract" xlink:to="lab_us-gaap_MarketableSecuritiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ConsolidatedEntitiesDomain_e924ef8d-4d2e-485e-b44a-abe57b66b8e8_terseLabel_en-US" xlink:label="lab_srt_ConsolidatedEntitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Consolidated Entities [Domain]</link:label>
    <link:label id="lab_srt_ConsolidatedEntitiesDomain_label_en-US" xlink:label="lab_srt_ConsolidatedEntitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Consolidated Entities [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ConsolidatedEntitiesDomain" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ConsolidatedEntitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ConsolidatedEntitiesDomain" xlink:to="lab_srt_ConsolidatedEntitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_OperatingLeaseCapitalizedCosts_02120ef2-75c3-40ed-bd5a-d8d80417d394_negatedLabel_en-US" xlink:label="lab_pnm_OperatingLeaseCapitalizedCosts" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amounts capitalized</link:label>
    <link:label id="lab_pnm_OperatingLeaseCapitalizedCosts_label_en-US" xlink:label="lab_pnm_OperatingLeaseCapitalizedCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Capitalized Costs</link:label>
    <link:label id="lab_pnm_OperatingLeaseCapitalizedCosts_documentation_en-US" xlink:label="lab_pnm_OperatingLeaseCapitalizedCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Capitalized Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_OperatingLeaseCapitalizedCosts" xlink:href="pnm-20230331.xsd#pnm_OperatingLeaseCapitalizedCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_OperatingLeaseCapitalizedCosts" xlink:to="lab_pnm_OperatingLeaseCapitalizedCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PerformanceEquityPlanMember_e9949ac0-009f-4c19-9050-54a509bec7ad_terseLabel_en-US" xlink:label="lab_pnm_PerformanceEquityPlanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Performance Equity Plan</link:label>
    <link:label id="lab_pnm_PerformanceEquityPlanMember_label_en-US" xlink:label="lab_pnm_PerformanceEquityPlanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Performance Equity Plan [Member]</link:label>
    <link:label id="lab_pnm_PerformanceEquityPlanMember_documentation_en-US" xlink:label="lab_pnm_PerformanceEquityPlanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Performance Equity Plan [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PerformanceEquityPlanMember" xlink:href="pnm-20230331.xsd#pnm_PerformanceEquityPlanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PerformanceEquityPlanMember" xlink:to="lab_pnm_PerformanceEquityPlanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ClassificationOfMineAxis_94f4d316-e56c-43ef-ae48-87b834d902c0_terseLabel_en-US" xlink:label="lab_pnm_ClassificationOfMineAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Classification of Mine [Axis]</link:label>
    <link:label id="lab_pnm_ClassificationOfMineAxis_label_en-US" xlink:label="lab_pnm_ClassificationOfMineAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Classification of Mine [Axis]</link:label>
    <link:label id="lab_pnm_ClassificationOfMineAxis_documentation_en-US" xlink:label="lab_pnm_ClassificationOfMineAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Classification of Mine [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ClassificationOfMineAxis" xlink:href="pnm-20230331.xsd#pnm_ClassificationOfMineAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ClassificationOfMineAxis" xlink:to="lab_pnm_ClassificationOfMineAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TNMPToPNMRMember_bc06859f-4412-4405-bcb8-f2993c821d8b_terseLabel_en-US" xlink:label="lab_pnm_TNMPToPNMRMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP to PNMR</link:label>
    <link:label id="lab_pnm_TNMPToPNMRMember_label_en-US" xlink:label="lab_pnm_TNMPToPNMRMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP To PNMR [Member]</link:label>
    <link:label id="lab_pnm_TNMPToPNMRMember_documentation_en-US" xlink:label="lab_pnm_TNMPToPNMRMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Tnmp to Pnmr [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TNMPToPNMRMember" xlink:href="pnm-20230331.xsd#pnm_TNMPToPNMRMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_TNMPToPNMRMember" xlink:to="lab_pnm_TNMPToPNMRMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect_bd9705a3-eaa8-459d-8d22-bc565034b3bc_totalLabel_en-US" xlink:label="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Change in Cash, Restricted Cash, and Equivalents</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:to="lab_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCentralIndexKey_795afa23-b7c5-437b-b21e-c6750199b3f9_terseLabel_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:label id="lab_dei_EntityCentralIndexKey_label_en-US" xlink:label="lab_dei_EntityCentralIndexKey" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Central Index Key</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCentralIndexKey" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityCentralIndexKey"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCentralIndexKey" xlink:to="lab_dei_EntityCentralIndexKey" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InvestmentIncomeInterest_47da3f17-de36-4b73-baf2-a9a715c1788a_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentIncomeInterest" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest income</link:label>
    <link:label id="lab_us-gaap_InvestmentIncomeInterest_label_en-US" xlink:label="lab_us-gaap_InvestmentIncomeInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment Income, Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InvestmentIncomeInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InvestmentIncomeInterest"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InvestmentIncomeInterest" xlink:to="lab_us-gaap_InvestmentIncomeInterest" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesProposedTermToProvideCustomersWithBenefitsRelatedToReductionInFederalCorporateIncomeTaxRate_96512c0f-793c-45c3-a7d4-34b9af97ff57_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesProposedTermToProvideCustomersWithBenefitsRelatedToReductionInFederalCorporateIncomeTaxRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Period of time for proposed return to customers the benefit of the reduction in federal corporate income tax rate</link:label>
    <link:label id="lab_pnm_PublicUtilitiesProposedTermToProvideCustomersWithBenefitsRelatedToReductionInFederalCorporateIncomeTaxRate_label_en-US" xlink:label="lab_pnm_PublicUtilitiesProposedTermToProvideCustomersWithBenefitsRelatedToReductionInFederalCorporateIncomeTaxRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Proposed Term to Provide Customers with Benefits Related to Reduction in Federal Corporate Income Tax Rate</link:label>
    <link:label id="lab_pnm_PublicUtilitiesProposedTermToProvideCustomersWithBenefitsRelatedToReductionInFederalCorporateIncomeTaxRate_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesProposedTermToProvideCustomersWithBenefitsRelatedToReductionInFederalCorporateIncomeTaxRate" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Proposed Term To Provide Customers With Benefits Related To Reduction In Federal Corporate Income Tax Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesProposedTermToProvideCustomersWithBenefitsRelatedToReductionInFederalCorporateIncomeTaxRate" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesProposedTermToProvideCustomersWithBenefitsRelatedToReductionInFederalCorporateIncomeTaxRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesProposedTermToProvideCustomersWithBenefitsRelatedToReductionInFederalCorporateIncomeTaxRate" xlink:to="lab_pnm_PublicUtilitiesProposedTermToProvideCustomersWithBenefitsRelatedToReductionInFederalCorporateIncomeTaxRate" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_6a81adfb-8355-4619-922a-6671d83f93f7_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:to="lab_us-gaap_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardTable" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityDomain_33ee7795-addc-4481-b9b3-ed7b74b308ba_terseLabel_en-US" xlink:label="lab_dei_EntityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity [Domain]</link:label>
    <link:label id="lab_dei_EntityDomain_label_en-US" xlink:label="lab_dei_EntityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityDomain" xlink:to="lab_dei_EntityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CityAreaCode_fe3ab183-30ad-42ea-98d2-6c39a2efc03d_terseLabel_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">City Area Code</link:label>
    <link:label id="lab_dei_CityAreaCode_label_en-US" xlink:label="lab_dei_CityAreaCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">City Area Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CityAreaCode" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CityAreaCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_CityAreaCode" xlink:to="lab_dei_CityAreaCode" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AssetsAbstract_d7eb1d79-fd60-4422-9f48-b65ca311f6d1_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">ASSETS</link:label>
    <link:label id="lab_us-gaap_AssetsAbstract_label_en-US" xlink:label="lab_us-gaap_AssetsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AssetsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AssetsAbstract" xlink:to="lab_us-gaap_AssetsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustRemainderOfYear_cb2ff340-e5b3-4580-bbe4-02f4735cfc15_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustRemainderOfYear" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Annual funding post-term reclamation trust, remainder of year</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustRemainderOfYear_label_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustRemainderOfYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Annual Funding Post-Term Reclamation Trust, Remainder Of Year</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustRemainderOfYear_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustRemainderOfYear" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Annual Funding Post-Term Reclamation Trust, Remainder Of Year</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustRemainderOfYear" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustRemainderOfYear"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustRemainderOfYear" xlink:to="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustRemainderOfYear" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherCurrentAssets_38365470-447a-4867-86e7-0711b8a7b3eb_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherCurrentAssets" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other current assets</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherCurrentAssets_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherCurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Other Current Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherCurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PaloVerdeNuclearGeneratingStationUnit2Member_177bccec-8e76-446b-9de8-0f14de75c193_terseLabel_en-US" xlink:label="lab_pnm_PaloVerdeNuclearGeneratingStationUnit2Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Palo Verde Nuclear Generating Station, Unit 2 Leases</link:label>
    <link:label id="lab_pnm_PaloVerdeNuclearGeneratingStationUnit2Member_label_en-US" xlink:label="lab_pnm_PaloVerdeNuclearGeneratingStationUnit2Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Palo Verde Nuclear Generating Station, Unit 2 [Member]</link:label>
    <link:label id="lab_pnm_PaloVerdeNuclearGeneratingStationUnit2Member_documentation_en-US" xlink:label="lab_pnm_PaloVerdeNuclearGeneratingStationUnit2Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Palo Verde Nuclear Generating Station, Unit 2 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PaloVerdeNuclearGeneratingStationUnit2Member" xlink:href="pnm-20230331.xsd#pnm_PaloVerdeNuclearGeneratingStationUnit2Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PaloVerdeNuclearGeneratingStationUnit2Member" xlink:to="lab_pnm_PaloVerdeNuclearGeneratingStationUnit2Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SubsidiarySaleOfStockAxis_f6c33ef0-ed25-48b6-91de-90a882cdea18_terseLabel_en-US" xlink:label="lab_us-gaap_SubsidiarySaleOfStockAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale of Stock [Axis]</link:label>
    <link:label id="lab_us-gaap_SubsidiarySaleOfStockAxis_label_en-US" xlink:label="lab_us-gaap_SubsidiarySaleOfStockAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale of Stock [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsidiarySaleOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SubsidiarySaleOfStockAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsidiarySaleOfStockAxis" xlink:to="lab_us-gaap_SubsidiarySaleOfStockAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesConcentrationRiskPotentialMarketRisk_01e94051-fbee-461b-8e76-3f4e0ac17fc4_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesConcentrationRiskPotentialMarketRisk" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Expected exposure to market risk (in megawatts)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesConcentrationRiskPotentialMarketRisk_label_en-US" xlink:label="lab_pnm_PublicUtilitiesConcentrationRiskPotentialMarketRisk" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Concentration Risk, Potential Market Risk</link:label>
    <link:label id="lab_pnm_PublicUtilitiesConcentrationRiskPotentialMarketRisk_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesConcentrationRiskPotentialMarketRisk" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Concentration Risk, Potential Market Risk</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesConcentrationRiskPotentialMarketRisk" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesConcentrationRiskPotentialMarketRisk"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesConcentrationRiskPotentialMarketRisk" xlink:to="lab_pnm_PublicUtilitiesConcentrationRiskPotentialMarketRisk" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_2af0aaf1-9258-4d7d-a88c-404f9df33c3f_terseLabel_en-US" xlink:label="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Supplemental schedule of noncash investing activities:</link:label>
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    <link:label id="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability_b11f9968-c5cc-4905-afd9-9220832334d4_terseLabel_en-US" xlink:label="lab_us-gaap_RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating leases</link:label>
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    <link:label id="lab_pnm_PublicUtilitiesRenewableEnergyProcurementPlanProposedRecoveryAmount_cc676493-f191-47db-8e02-7303de021132_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesRenewableEnergyProcurementPlanProposedRecoveryAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proposed revision to rider that will allow for recovery</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesRenewableEnergyProcurementPlanProposedRecoveryAmount" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesRenewableEnergyProcurementPlanProposedRecoveryAmount"/>
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    <link:label id="lab_pnm_RenewablePortfolioStandard2014Member_d5407352-cf6d-4910-bc90-a54261376734_terseLabel_en-US" xlink:label="lab_pnm_RenewablePortfolioStandard2014Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Renewable Portfolio Standard 2014</link:label>
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    <link:label id="lab_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd_95cbda94-cf51-418c-9387-a2801fdb1da5_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Line of credit facility, interest rate at period end</link:label>
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    <link:label id="lab_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember_7dee5976-925f-4eaf-8d39-f49b4dc347de_terseLabel_en-US" xlink:label="lab_us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">OPEB Plan</link:label>
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    <link:label id="lab_srt_NameOfMajorCustomerDomain_df081240-9759-48e6-9ef4-3157e915a4d2_terseLabel_en-US" xlink:label="lab_srt_NameOfMajorCustomerDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Customer [Domain]</link:label>
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    <link:label id="lab_pnm_PublicUtilitiesNumberofMegaWattsofSolarPhotovoltaicCapacityCurrentOutput_3ff00d41-d93a-4d20-acf5-e4ee132b2b19_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberofMegaWattsofSolarPhotovoltaicCapacityCurrentOutput" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current output in the geothermal facility (in megawatts)</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesNumberofMegaWattsofSolarPhotovoltaicCapacityCurrentOutput" xlink:to="lab_pnm_PublicUtilitiesNumberofMegaWattsofSolarPhotovoltaicCapacityCurrentOutput" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NuclearFuelNetOfAmortization_34240673-fe4b-4c30-b8af-34b5abde3445_verboseLabel_en-US" xlink:label="lab_us-gaap_NuclearFuelNetOfAmortization" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Nuclear fuel, net of accumulated amortization of $38,626 and $43,985</link:label>
    <link:label id="lab_us-gaap_NuclearFuelNetOfAmortization_cb140417-f6bb-4aa4-8fef-19fdeac91f98_terseLabel_en-US" xlink:label="lab_us-gaap_NuclearFuelNetOfAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Nuclear fuel, net of accumulated amortization of $38,626 and $43,985</link:label>
    <link:label id="lab_us-gaap_NuclearFuelNetOfAmortization_label_en-US" xlink:label="lab_us-gaap_NuclearFuelNetOfAmortization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Nuclear Fuel, Net of Amortization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NuclearFuelNetOfAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NuclearFuelNetOfAmortization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NuclearFuelNetOfAmortization" xlink:to="lab_us-gaap_NuclearFuelNetOfAmortization" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_MaterialsSuppliesAndFuelStockMember_5aa7008f-1893-425a-97bf-c6270171c30f_terseLabel_en-US" xlink:label="lab_pnm_MaterialsSuppliesAndFuelStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Materials, Supplies, and Fuel Stock</link:label>
    <link:label id="lab_pnm_MaterialsSuppliesAndFuelStockMember_label_en-US" xlink:label="lab_pnm_MaterialsSuppliesAndFuelStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Materials, Supplies, and Fuel Stock [Member]</link:label>
    <link:label id="lab_pnm_MaterialsSuppliesAndFuelStockMember_documentation_en-US" xlink:label="lab_pnm_MaterialsSuppliesAndFuelStockMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Materials, Supplies, and Fuel Stock</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_MaterialsSuppliesAndFuelStockMember" xlink:href="pnm-20230331.xsd#pnm_MaterialsSuppliesAndFuelStockMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_MaterialsSuppliesAndFuelStockMember" xlink:to="lab_pnm_MaterialsSuppliesAndFuelStockMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_f217b3db-145e-4988-a875-be78709709bc_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Within 1 year</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue"/>
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    <link:label id="lab_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_9fb333a3-e583-4152-b8e2-da6d989c97db_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amounts reclassified from AOCI (pre-tax)</link:label>
    <link:label id="lab_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax_label_en-US" xlink:label="lab_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:to="lab_us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DeferredCreditsAndOtherLiabilitiesNoncurrent_34d293d6-45f6-4ee5-aec7-8592dad908f0_terseLabel_en-US" xlink:label="lab_us-gaap_DeferredCreditsAndOtherLiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other deferred credits</link:label>
    <link:label id="lab_us-gaap_DeferredCreditsAndOtherLiabilitiesNoncurrent_label_en-US" xlink:label="lab_us-gaap_DeferredCreditsAndOtherLiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred Credits and Other Liabilities, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredCreditsAndOtherLiabilitiesNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DeferredCreditsAndOtherLiabilitiesNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DeferredCreditsAndOtherLiabilitiesNoncurrent" xlink:to="lab_us-gaap_DeferredCreditsAndOtherLiabilitiesNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_81cd8ace-7773-4320-8848-955a1aab4528_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Stockholders' Equity [Roll Forward]</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Stockholders' Equity [Roll Forward]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInStockholdersEquityRollForward"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:to="lab_us-gaap_IncreaseDecreaseInStockholdersEquityRollForward" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_09c611dd-01ae-43b2-8e34-be62f352bdfc_totalLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total minimum lease payments</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProfitLoss_33b520aa-8ebf-4c6a-92fd-efa9c5ae7522_totalLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Earnings</link:label>
    <link:label id="lab_us-gaap_ProfitLoss_d929f6a9-0805-4508-9a59-3bd899e47552_netLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Earnings</link:label>
    <link:label id="lab_us-gaap_ProfitLoss_342b7a5a-097b-4d2e-85b2-607a0f429391_verboseLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net earnings before subsidiary preferred stock dividends</link:label>
    <link:label id="lab_us-gaap_ProfitLoss_33574587-3ef1-46fb-a033-f6e6aa4ac132_terseLabel_en-US" xlink:label="lab_us-gaap_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Earnings</link:label>
    <link:label id="lab_us-gaap_ProfitLoss_label_en-US" xlink:label="lab_us-gaap_ProfitLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Income (Loss), Including Portion Attributable to Noncontrolling Interest</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProfitLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProfitLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProfitLoss" xlink:to="lab_us-gaap_ProfitLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_4a2582b5-efa6-4477-a19e-57adcfb74dde_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Valencia</link:label>
    <link:label id="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Interest Entity, Primary Beneficiary [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_VariableInterestEntityPrimaryBeneficiaryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:to="lab_us-gaap_VariableInterestEntityPrimaryBeneficiaryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesNonRecurringCosts_3c2a77d7-0218-4b0b-9c1e-b000837173b4_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesNonRecurringCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-recurring costs</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNonRecurringCosts_label_en-US" xlink:label="lab_pnm_PublicUtilitiesNonRecurringCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Non-Recurring Costs</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNonRecurringCosts_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesNonRecurringCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Non-Recurring Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesNonRecurringCosts" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesNonRecurringCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesNonRecurringCosts" xlink:to="lab_pnm_PublicUtilitiesNonRecurringCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressPostalZipCode_3a6513ea-606c-475f-9948-2f6387fdfaba_terseLabel_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:label id="lab_dei_EntityAddressPostalZipCode_label_en-US" xlink:label="lab_dei_EntityAddressPostalZipCode" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Postal Zip Code</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressPostalZipCode" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressPostalZipCode"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressPostalZipCode" xlink:to="lab_dei_EntityAddressPostalZipCode" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RegulatoryAndRateMattersTextBlock_7ee97a31-feee-4715-b686-b1c4dd7cc8c5_terseLabel_en-US" xlink:label="lab_pnm_RegulatoryAndRateMattersTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory and Rate Matters</link:label>
    <link:label id="lab_pnm_RegulatoryAndRateMattersTextBlock_label_en-US" xlink:label="lab_pnm_RegulatoryAndRateMattersTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory And Rate Matters [Text Block]</link:label>
    <link:label id="lab_pnm_RegulatoryAndRateMattersTextBlock_documentation_en-US" xlink:label="lab_pnm_RegulatoryAndRateMattersTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory And Rate Matters [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RegulatoryAndRateMattersTextBlock" xlink:href="pnm-20230331.xsd#pnm_RegulatoryAndRateMattersTextBlock"/>
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    <link:label id="lab_pnm_PublicUtilitiesFrequencyOfIRPFilings_a9f74d20-f449-4a88-a906-9466c8a438d0_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesFrequencyOfIRPFilings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Frequency of IRP filings</link:label>
    <link:label id="lab_pnm_PublicUtilitiesFrequencyOfIRPFilings_label_en-US" xlink:label="lab_pnm_PublicUtilitiesFrequencyOfIRPFilings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Frequency of IRP Filings</link:label>
    <link:label id="lab_pnm_PublicUtilitiesFrequencyOfIRPFilings_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesFrequencyOfIRPFilings" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Frequency of IRP Filings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesFrequencyOfIRPFilings" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesFrequencyOfIRPFilings"/>
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    <link:label id="lab_us-gaap_DebtSecuritiesRealizedGainLoss_17f105c2-04cd-4371-8404-84d7b23c810c_terseLabel_en-US" xlink:label="lab_us-gaap_DebtSecuritiesRealizedGainLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net (losses) on debt securities</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesRealizedGainLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesRealizedGainLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtSecuritiesRealizedGainLoss" xlink:to="lab_us-gaap_DebtSecuritiesRealizedGainLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CashUsedToSupportBankLetterOrCreditArrangement_7c1472d4-d0d1-4165-9893-6c75b5f4e102_terseLabel_en-US" xlink:label="lab_pnm_CashUsedToSupportBankLetterOrCreditArrangement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash used to support bank letter or credit arrangement</link:label>
    <link:label id="lab_pnm_CashUsedToSupportBankLetterOrCreditArrangement_label_en-US" xlink:label="lab_pnm_CashUsedToSupportBankLetterOrCreditArrangement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash Used To Support Bank Letter Or Credit Arrangement</link:label>
    <link:label id="lab_pnm_CashUsedToSupportBankLetterOrCreditArrangement_documentation_en-US" xlink:label="lab_pnm_CashUsedToSupportBankLetterOrCreditArrangement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash used to support bank letter or credit arrangement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CashUsedToSupportBankLetterOrCreditArrangement" xlink:href="pnm-20230331.xsd#pnm_CashUsedToSupportBankLetterOrCreditArrangement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CashUsedToSupportBankLetterOrCreditArrangement" xlink:to="lab_pnm_CashUsedToSupportBankLetterOrCreditArrangement" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_InsuranceCarrierDomain_d90a0333-39a9-453e-8c88-f4443c245c2f_terseLabel_en-US" xlink:label="lab_pnm_InsuranceCarrierDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Insurance Carrier [Domain]</link:label>
    <link:label id="lab_pnm_InsuranceCarrierDomain_label_en-US" xlink:label="lab_pnm_InsuranceCarrierDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Insurance Carrier [Domain]</link:label>
    <link:label id="lab_pnm_InsuranceCarrierDomain_documentation_en-US" xlink:label="lab_pnm_InsuranceCarrierDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Insurance Carrier [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_InsuranceCarrierDomain" xlink:href="pnm-20230331.xsd#pnm_InsuranceCarrierDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_InsuranceCarrierDomain" xlink:to="lab_pnm_InsuranceCarrierDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesIncrementalDistributionInvestments_1ffee2c8-9d3e-4513-ad09-030538ceebd9_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesIncrementalDistributionInvestments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Incremental distribution investments</link:label>
    <link:label id="lab_pnm_PublicUtilitiesIncrementalDistributionInvestments_label_en-US" xlink:label="lab_pnm_PublicUtilitiesIncrementalDistributionInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Incremental Distribution Investments</link:label>
    <link:label id="lab_pnm_PublicUtilitiesIncrementalDistributionInvestments_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesIncrementalDistributionInvestments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Incremental Distribution Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesIncrementalDistributionInvestments" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesIncrementalDistributionInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesIncrementalDistributionInvestments" xlink:to="lab_pnm_PublicUtilitiesIncrementalDistributionInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_fd75f45d-36e6-40a9-b8cf-db5a0b7e84bd_terseLabel_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financing capacity</link:label>
    <link:label id="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity_label_en-US" xlink:label="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Line of Credit Facility, Maximum Borrowing Capacity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:to="lab_us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeTaxDisclosureAbstract_e4f0c298-49db-45d0-b668-ab4605eb7a33_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Tax Disclosure [Abstract]</link:label>
    <link:label id="lab_us-gaap_IncomeTaxDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_IncomeTaxDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Tax Disclosure [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeTaxDisclosureAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeTaxDisclosureAbstract" xlink:to="lab_us-gaap_IncomeTaxDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_IncomeLossFromContinuingOperationsAttributableToParentPerShareAbstract_7b85199e-01a5-4bf9-bb9f-cec6309275ef_terseLabel_en-US" xlink:label="lab_pnm_IncomeLossFromContinuingOperationsAttributableToParentPerShareAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Earnings Attributable to PNMR per Common Share:</link:label>
    <link:label id="lab_pnm_IncomeLossFromContinuingOperationsAttributableToParentPerShareAbstract_label_en-US" xlink:label="lab_pnm_IncomeLossFromContinuingOperationsAttributableToParentPerShareAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Loss From Continuing Operations Attributable To Parent Per Share [Abstract]</link:label>
    <link:label id="lab_pnm_IncomeLossFromContinuingOperationsAttributableToParentPerShareAbstract_documentation_en-US" xlink:label="lab_pnm_IncomeLossFromContinuingOperationsAttributableToParentPerShareAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Loss From Continuing Operations Attributable To Parent Per Share [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_IncomeLossFromContinuingOperationsAttributableToParentPerShareAbstract" xlink:href="pnm-20230331.xsd#pnm_IncomeLossFromContinuingOperationsAttributableToParentPerShareAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_IncomeLossFromContinuingOperationsAttributableToParentPerShareAbstract" xlink:to="lab_pnm_IncomeLossFromContinuingOperationsAttributableToParentPerShareAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermContractForPurchaseOfElectricPowerDomain_02a14261-35a9-4b01-aa6c-30d63e91936a_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermContractForPurchaseOfElectricPowerDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Contract for Purchase of Electric Power [Domain]</link:label>
    <link:label id="lab_us-gaap_LongTermContractForPurchaseOfElectricPowerDomain_label_en-US" xlink:label="lab_us-gaap_LongTermContractForPurchaseOfElectricPowerDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-Term Contract for Purchase of Electric Power [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermContractForPurchaseOfElectricPowerDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerDomain" xlink:to="lab_us-gaap_LongTermContractForPurchaseOfElectricPowerDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LeasesOperatingTable_daa80092-32db-48aa-8dd5-ab3c559b7156_terseLabel_en-US" xlink:label="lab_pnm_LeasesOperatingTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leases, Operating [Table]</link:label>
    <link:label id="lab_pnm_LeasesOperatingTable_label_en-US" xlink:label="lab_pnm_LeasesOperatingTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leases, Operating [Table]</link:label>
    <link:label id="lab_pnm_LeasesOperatingTable_documentation_en-US" xlink:label="lab_pnm_LeasesOperatingTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leases, Operating [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LeasesOperatingTable" xlink:href="pnm-20230331.xsd#pnm_LeasesOperatingTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LeasesOperatingTable" xlink:to="lab_pnm_LeasesOperatingTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NuclearSpentFuelAndWasteDisposalMember_271f2ee3-080f-4a45-a1e7-fc89f43a6271_terseLabel_en-US" xlink:label="lab_pnm_NuclearSpentFuelAndWasteDisposalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Nuclear spent fuel and waste disposal</link:label>
    <link:label id="lab_pnm_NuclearSpentFuelAndWasteDisposalMember_label_en-US" xlink:label="lab_pnm_NuclearSpentFuelAndWasteDisposalMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Nuclear Spent Fuel And Waste Disposal [Member]</link:label>
    <link:label id="lab_pnm_NuclearSpentFuelAndWasteDisposalMember_documentation_en-US" xlink:label="lab_pnm_NuclearSpentFuelAndWasteDisposalMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Nuclear Spent Fuel And Waste Disposal [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NuclearSpentFuelAndWasteDisposalMember" xlink:href="pnm-20230331.xsd#pnm_NuclearSpentFuelAndWasteDisposalMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NuclearSpentFuelAndWasteDisposalMember" xlink:to="lab_pnm_NuclearSpentFuelAndWasteDisposalMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_056b5c47-118c-4018-8dd5-ff5e2479f699_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other, net</link:label>
    <link:label id="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_label_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments for (Proceeds from) Other Investing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:to="lab_us-gaap_PaymentsForProceedsFromOtherInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RangeMember_3da7a62b-2cb4-4bf4-9433-4ecbdaac4081_terseLabel_en-US" xlink:label="lab_srt_RangeMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statistical Measurement [Domain]</link:label>
    <link:label id="lab_srt_RangeMember_label_en-US" xlink:label="lab_srt_RangeMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statistical Measurement [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeMember" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RangeMember" xlink:to="lab_srt_RangeMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PNM2023SUNsAtFivePointNinetyTwoPercentDueApril282053Member_6da2490d-f820-44a2-a923-0b634eb66f94_terseLabel_en-US" xlink:label="lab_pnm_PNM2023SUNsAtFivePointNinetyTwoPercentDueApril282053Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM 2023 SUNs At 5.92%, Due April 28, 2053</link:label>
    <link:label id="lab_pnm_PNM2023SUNsAtFivePointNinetyTwoPercentDueApril282053Member_label_en-US" xlink:label="lab_pnm_PNM2023SUNsAtFivePointNinetyTwoPercentDueApril282053Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM 2023 SUNs At Five Point Ninety Two Percent Due April 28, 2053 [Member]</link:label>
    <link:label id="lab_pnm_PNM2023SUNsAtFivePointNinetyTwoPercentDueApril282053Member_documentation_en-US" xlink:label="lab_pnm_PNM2023SUNsAtFivePointNinetyTwoPercentDueApril282053Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM 2023 SUNs At Five Point Ninety Two Percent Due April 28, 2053</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PNM2023SUNsAtFivePointNinetyTwoPercentDueApril282053Member" xlink:href="pnm-20230331.xsd#pnm_PNM2023SUNsAtFivePointNinetyTwoPercentDueApril282053Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PNM2023SUNsAtFivePointNinetyTwoPercentDueApril282053Member" xlink:to="lab_pnm_PNM2023SUNsAtFivePointNinetyTwoPercentDueApril282053Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount_1233c0c6-53e2-4bea-96e8-b65117013682_verboseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Approved Increase in Rate Base</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount_8b24bcbc-c95b-43c0-abd9-ae7927a0272a_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Approved Increase in Rate Base</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Approved Rate Increase (Decrease), Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount" xlink:to="lab_us-gaap_PublicUtilitiesApprovedRateIncreaseDecreaseAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShortTermDebtTypeAxis_df9e0c31-4a1d-4e9d-924c-56a147d5f9f8_terseLabel_en-US" xlink:label="lab_us-gaap_ShortTermDebtTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-term Debt, Type [Axis]</link:label>
    <link:label id="lab_us-gaap_ShortTermDebtTypeAxis_label_en-US" xlink:label="lab_us-gaap_ShortTermDebtTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Short-Term Debt, Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermDebtTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShortTermDebtTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShortTermDebtTypeAxis" xlink:to="lab_us-gaap_ShortTermDebtTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ClassificationOfMineDomain_7964ee5d-d622-4e97-a057-40782d57ab32_terseLabel_en-US" xlink:label="lab_pnm_ClassificationOfMineDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Classification of Mine [Domain]</link:label>
    <link:label id="lab_pnm_ClassificationOfMineDomain_label_en-US" xlink:label="lab_pnm_ClassificationOfMineDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Classification of Mine [Domain]</link:label>
    <link:label id="lab_pnm_ClassificationOfMineDomain_documentation_en-US" xlink:label="lab_pnm_ClassificationOfMineDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Classification of Mine [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ClassificationOfMineDomain" xlink:href="pnm-20230331.xsd#pnm_ClassificationOfMineDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ClassificationOfMineDomain" xlink:to="lab_pnm_ClassificationOfMineDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_d1e9d91a-334d-4c52-a252-f2e2ac9f32c9_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from sales of investment securities</link:label>
    <link:label id="lab_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from Sale and Maturity of Marketable Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:to="lab_us-gaap_ProceedsFromSaleAndMaturityOfMarketableSecurities" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearTwo_3cb1c412-7538-4eb4-acf5-1f7a6d455835_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearTwo" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Annual funding post-term reclamation trust, year two</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearTwo_label_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearTwo" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Annual Funding Post-Term Reclamation Trust, Year Two</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearTwo_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearTwo" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Annual Funding Post-Term Reclamation Trust, Year Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearTwo" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearTwo"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearTwo" xlink:to="lab_pnm_PublicUtilitiesAnnualFundingPostTermReclamationTrustYearTwo" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_ab1c57b5-150c-40dd-8560-d307c6661580_terseLabel_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Payment Arrangement [Abstract]</link:label>
    <link:label id="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract_label_en-US" xlink:label="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-Based Payment Arrangement [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:to="lab_us-gaap_DisclosureOfCompensationRelatedCostsSharebasedPaymentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesLiabilityInsuranceCoverage_ec808c9e-d899-44bd-a0b3-1c6d9faba443_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesLiabilityInsuranceCoverage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liability insurance coverage</link:label>
    <link:label id="lab_pnm_PublicUtilitiesLiabilityInsuranceCoverage_label_en-US" xlink:label="lab_pnm_PublicUtilitiesLiabilityInsuranceCoverage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Liability Insurance Coverage</link:label>
    <link:label id="lab_pnm_PublicUtilitiesLiabilityInsuranceCoverage_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesLiabilityInsuranceCoverage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Liability Insurance Coverage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesLiabilityInsuranceCoverage" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesLiabilityInsuranceCoverage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesLiabilityInsuranceCoverage" xlink:to="lab_pnm_PublicUtilitiesLiabilityInsuranceCoverage" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_108caa1d-ab08-4283-a74b-5b0fc26fdf93_totalLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Periodic Benefit Cost (Income)</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Defined Benefit Plan, Net Periodic Benefit Cost (Credit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:to="lab_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_VariableRateDebtTranche3Member_4dc54b9f-aad1-494a-8797-59204cedd193_terseLabel_en-US" xlink:label="lab_pnm_VariableRateDebtTranche3Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt, Tranche 3</link:label>
    <link:label id="lab_pnm_VariableRateDebtTranche3Member_label_en-US" xlink:label="lab_pnm_VariableRateDebtTranche3Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt, Tranche 3 [Member]</link:label>
    <link:label id="lab_pnm_VariableRateDebtTranche3Member_documentation_en-US" xlink:label="lab_pnm_VariableRateDebtTranche3Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt, Tranche 3</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_VariableRateDebtTranche3Member" xlink:href="pnm-20230331.xsd#pnm_VariableRateDebtTranche3Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_VariableRateDebtTranche3Member" xlink:to="lab_pnm_VariableRateDebtTranche3Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_02548ed8-932d-449e-a707-df863c44a2ee_terseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other current liabilities</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Other Current Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInOtherCurrentLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RenewablePortfolioStandardMember_917a1729-7df6-4ff0-931c-46adf7987f9d_terseLabel_en-US" xlink:label="lab_pnm_RenewablePortfolioStandardMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Renewable Portfolio Standard</link:label>
    <link:label id="lab_pnm_RenewablePortfolioStandardMember_label_en-US" xlink:label="lab_pnm_RenewablePortfolioStandardMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Renewable Portfolio Standard [Member]</link:label>
    <link:label id="lab_pnm_RenewablePortfolioStandardMember_documentation_en-US" xlink:label="lab_pnm_RenewablePortfolioStandardMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Renewable Portfolio Standard [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RenewablePortfolioStandardMember" xlink:href="pnm-20230331.xsd#pnm_RenewablePortfolioStandardMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_RenewablePortfolioStandardMember" xlink:to="lab_pnm_RenewablePortfolioStandardMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetIncomeLoss_0a02f661-2fe1-4541-81fa-a97dce4e507f_totalLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Earnings Attributable to PNM</link:label>
    <link:label id="lab_us-gaap_NetIncomeLoss_36485f10-274f-4a31-a887-9440feca901a_verboseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net earnings</link:label>
    <link:label id="lab_us-gaap_NetIncomeLoss_label_en-US" xlink:label="lab_us-gaap_NetIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Income (Loss) Attributable to Parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetIncomeLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLoss" xlink:to="lab_us-gaap_NetIncomeLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_e958fa75-6961-45bf-8d5b-2a7db7227f80_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">After 1 year through 5 years</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeFinanceLeasesTextBlock_20dbc6aa-5f4e-454c-a2d1-5f70bec539f8_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeFinanceLeasesTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease Commitments</link:label>
    <link:label id="lab_us-gaap_LesseeFinanceLeasesTextBlock_label_en-US" xlink:label="lab_us-gaap_LesseeFinanceLeasesTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Finance Leases [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeFinanceLeasesTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeFinanceLeasesTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeFinanceLeasesTextBlock" xlink:to="lab_us-gaap_LesseeFinanceLeasesTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_e0cc829b-be36-47d9-bcb5-23b9003aa346_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Remainder of 2023</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability, to be Paid, Remainder of Fiscal Year</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:to="lab_us-gaap_FinanceLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesProjectedReserveMargin_a8837234-cd65-42f0-ac60-4f143807f052_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesProjectedReserveMargin" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reserve margin</link:label>
    <link:label id="lab_pnm_PublicUtilitiesProjectedReserveMargin_label_en-US" xlink:label="lab_pnm_PublicUtilitiesProjectedReserveMargin" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Projected Reserve Margin</link:label>
    <link:label id="lab_pnm_PublicUtilitiesProjectedReserveMargin_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesProjectedReserveMargin" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Projected Reserve Margin</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesProjectedReserveMargin" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesProjectedReserveMargin"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesProjectedReserveMargin" xlink:to="lab_pnm_PublicUtilitiesProjectedReserveMargin" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_2506707d-af4b-46d3-9aaa-8a4f67d0f20f_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amortization of prior service cost</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Defined Benefit Plan, Amortization of Prior Service Cost (Credit)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:to="lab_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SubsequentEventTypeAxis_e7f7709b-3728-4ac7-8b1d-70acd6bee666_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsequent Event Type [Axis]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SubsequentEventTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventTypeAxis" xlink:to="lab_us-gaap_SubsequentEventTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeAssetNumberOfInstrumentsHeld_10515868-e106-4679-b362-67e58d83a7fd_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeAssetNumberOfInstrumentsHeld" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of instruments held</link:label>
    <link:label id="lab_us-gaap_DerivativeAssetNumberOfInstrumentsHeld_label_en-US" xlink:label="lab_us-gaap_DerivativeAssetNumberOfInstrumentsHeld" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative Asset, Number of Instruments Held</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetNumberOfInstrumentsHeld" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeAssetNumberOfInstrumentsHeld"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeAssetNumberOfInstrumentsHeld" xlink:to="lab_us-gaap_DerivativeAssetNumberOfInstrumentsHeld" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesGridModernizationTerm_0729683d-22c0-41a9-9dea-5db39c50e0da_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesGridModernizationTerm" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Grid modernization term</link:label>
    <link:label id="lab_pnm_PublicUtilitiesGridModernizationTerm_label_en-US" xlink:label="lab_pnm_PublicUtilitiesGridModernizationTerm" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Grid Modernization Term</link:label>
    <link:label id="lab_pnm_PublicUtilitiesGridModernizationTerm_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesGridModernizationTerm" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Grid Modernization Term</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesGridModernizationTerm" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesGridModernizationTerm"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesGridModernizationTerm" xlink:to="lab_pnm_PublicUtilitiesGridModernizationTerm" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_StatementScenarioAxis_e7fcabc2-a1a6-448f-ab44-ac86bb09d52a_terseLabel_en-US" xlink:label="lab_srt_StatementScenarioAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Scenario [Axis]</link:label>
    <link:label id="lab_srt_StatementScenarioAxis_label_en-US" xlink:label="lab_srt_StatementScenarioAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Scenario [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_StatementScenarioAxis" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_StatementScenarioAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_StatementScenarioAxis" xlink:to="lab_srt_StatementScenarioAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeasesTextBlock_7ee91b1a-eb69-47af-80c7-d9da458e7e6f_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeasesTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease Commitments</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeasesTextBlock_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeasesTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Leases [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeasesTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeasesTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeasesTextBlock" xlink:to="lab_us-gaap_LesseeOperatingLeasesTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1_dd4139fd-c7bf-4b00-bbf3-3cce3ca46957_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease to be executed, term of contract</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Lease Not yet Commenced, Term of Contract</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1" xlink:to="lab_us-gaap_LesseeOperatingLeaseLeaseNotYetCommencedTermOfContract1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PlanNameAxis_05b33140-27b8-4fba-b484-928644ef896b_terseLabel_en-US" xlink:label="lab_us-gaap_PlanNameAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Plan Name [Axis]</link:label>
    <link:label id="lab_us-gaap_PlanNameAxis_label_en-US" xlink:label="lab_us-gaap_PlanNameAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Plan Name [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PlanNameAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PlanNameAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PlanNameAxis" xlink:to="lab_us-gaap_PlanNameAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ContractWithCustomerAssetNet_9d82b8ac-22fe-49f0-82c4-664ce40061c0_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts receivable</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerAssetNet_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerAssetNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contract with Customer, Asset, after Allowance for Credit Loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerAssetNet" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ContractWithCustomerAssetNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerAssetNet" xlink:to="lab_us-gaap_ContractWithCustomerAssetNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_5fb12298-4007-45a1-b0d1-ab1a2d9179b6_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Diluted (dollars per share)</link:label>
    <link:label id="lab_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_label_en-US" xlink:label="lab_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income (Loss) from Continuing Operations, Per Diluted Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:to="lab_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeInstrumentRiskAxis_26a72d2a-427f-43a6-b80f-3444b5f8606c_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentRiskAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative Instrument [Axis]</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentRiskAxis_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentRiskAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative Instrument [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeInstrumentRiskAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeInstrumentRiskAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentRiskAxis" xlink:to="lab_us-gaap_DerivativeInstrumentRiskAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ForeignGovernmentMember_ce53053d-e02c-4d94-82c4-b806786f3eab_terseLabel_en-US" xlink:label="lab_pnm_ForeignGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">International government</link:label>
    <link:label id="lab_pnm_ForeignGovernmentMember_label_en-US" xlink:label="lab_pnm_ForeignGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Foreign Government [Member]</link:label>
    <link:label id="lab_pnm_ForeignGovernmentMember_documentation_en-US" xlink:label="lab_pnm_ForeignGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Foreign Government [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ForeignGovernmentMember" xlink:href="pnm-20230331.xsd#pnm_ForeignGovernmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ForeignGovernmentMember" xlink:to="lab_pnm_ForeignGovernmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NumberOfOperatingSegments_07746c38-a5d2-494b-8945-ba8880dd3062_terseLabel_en-US" xlink:label="lab_us-gaap_NumberOfOperatingSegments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of operating segments</link:label>
    <link:label id="lab_us-gaap_NumberOfOperatingSegments_label_en-US" xlink:label="lab_us-gaap_NumberOfOperatingSegments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of Operating Segments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NumberOfOperatingSegments" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NumberOfOperatingSegments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NumberOfOperatingSegments" xlink:to="lab_us-gaap_NumberOfOperatingSegments" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RegulatedOperationsAbstract_1bd75d13-cce4-47bd-8f68-8b5b5eeab7c0_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatedOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulated Operations [Abstract]</link:label>
    <link:label id="lab_us-gaap_RegulatedOperationsAbstract_label_en-US" xlink:label="lab_us-gaap_RegulatedOperationsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulated Operations [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatedOperationsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RegulatedOperationsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatedOperationsAbstract" xlink:to="lab_us-gaap_RegulatedOperationsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_9e9c3677-e270-4d0d-8999-7f32d020ba93_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Remainder of 2023</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GoodwillLineItems_02251bca-a055-4ffc-bcdd-4468bf0f8fdd_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill [Line Items]</link:label>
    <link:label id="lab_us-gaap_GoodwillLineItems_label_en-US" xlink:label="lab_us-gaap_GoodwillLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GoodwillLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GoodwillLineItems" xlink:to="lab_us-gaap_GoodwillLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LesseeRightOfWayLeasePayments_6829b9f6-6652-4deb-aed1-e47a1426cc8d_terseLabel_en-US" xlink:label="lab_pnm_LesseeRightOfWayLeasePayments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Right-of-way lease payments</link:label>
    <link:label id="lab_pnm_LesseeRightOfWayLeasePayments_label_en-US" xlink:label="lab_pnm_LesseeRightOfWayLeasePayments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Right-Of-Way Lease, Payments</link:label>
    <link:label id="lab_pnm_LesseeRightOfWayLeasePayments_documentation_en-US" xlink:label="lab_pnm_LesseeRightOfWayLeasePayments" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Right-Of-Way Lease Payments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LesseeRightOfWayLeasePayments" xlink:href="pnm-20230331.xsd#pnm_LesseeRightOfWayLeasePayments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LesseeRightOfWayLeasePayments" xlink:to="lab_pnm_LesseeRightOfWayLeasePayments" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_163fc5e2-571b-4550-ab8a-8c240d64e10f_terseLabel_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:label id="lab_us-gaap_StatementOfCashFlowsAbstract_label_en-US" xlink:label="lab_us-gaap_StatementOfCashFlowsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Cash Flows [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementOfCashFlowsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementOfCashFlowsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementOfCashFlowsAbstract" xlink:to="lab_us-gaap_StatementOfCashFlowsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValueInputsLevel1Member_4e2e042e-97b5-4fcb-bd3e-f2a49c10f703_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Level 1</link:label>
    <link:label id="lab_us-gaap_FairValueInputsLevel1Member_label_en-US" xlink:label="lab_us-gaap_FairValueInputsLevel1Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value, Inputs, Level 1 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueInputsLevel1Member" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValueInputsLevel1Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueInputsLevel1Member" xlink:to="lab_us-gaap_FairValueInputsLevel1Member" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTableTextBlock_b68895f3-5f7e-4b37-8eec-f949c83df2e3_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities General Disclosures</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTableTextBlock_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities General Disclosures [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesGeneralDisclosuresTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesGeneralDisclosuresTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesGeneralDisclosuresTableTextBlock" xlink:to="lab_us-gaap_PublicUtilitiesGeneralDisclosuresTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_EnergyEfficiencyCostRecoveryFactorSettlementAmount_ffd7d90a-2bdd-40cb-b0b0-25f54ddbe379_terseLabel_en-US" xlink:label="lab_pnm_EnergyEfficiencyCostRecoveryFactorSettlementAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy efficiency cost recovery factor, approved settlement amount</link:label>
    <link:label id="lab_pnm_EnergyEfficiencyCostRecoveryFactorSettlementAmount_label_en-US" xlink:label="lab_pnm_EnergyEfficiencyCostRecoveryFactorSettlementAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy Efficiency Cost Recovery Factor, Settlement Amount</link:label>
    <link:label id="lab_pnm_EnergyEfficiencyCostRecoveryFactorSettlementAmount_documentation_en-US" xlink:label="lab_pnm_EnergyEfficiencyCostRecoveryFactorSettlementAmount" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy Efficiency Cost Recovery Factor, Settlement Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_EnergyEfficiencyCostRecoveryFactorSettlementAmount" xlink:href="pnm-20230331.xsd#pnm_EnergyEfficiencyCostRecoveryFactorSettlementAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_EnergyEfficiencyCostRecoveryFactorSettlementAmount" xlink:to="lab_pnm_EnergyEfficiencyCostRecoveryFactorSettlementAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NMRDMember_d58abc19-6dad-42be-bba0-609c5106734d_terseLabel_en-US" xlink:label="lab_pnm_NMRDMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">NMRD</link:label>
    <link:label id="lab_pnm_NMRDMember_label_en-US" xlink:label="lab_pnm_NMRDMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">NMRD [Member]</link:label>
    <link:label id="lab_pnm_NMRDMember_documentation_en-US" xlink:label="lab_pnm_NMRDMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">NMRD [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NMRDMember" xlink:href="pnm-20230331.xsd#pnm_NMRDMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NMRDMember" xlink:to="lab_pnm_NMRDMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FinanceLeaseLiabilityToBePaidAfterYearFour_5f200b49-63ce-4b20-8df8-75e60ac54905_terseLabel_en-US" xlink:label="lab_pnm_FinanceLeaseLiabilityToBePaidAfterYearFour" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Later years</link:label>
    <link:label id="lab_pnm_FinanceLeaseLiabilityToBePaidAfterYearFour_label_en-US" xlink:label="lab_pnm_FinanceLeaseLiabilityToBePaidAfterYearFour" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability, to be Paid, after Year Four</link:label>
    <link:label id="lab_pnm_FinanceLeaseLiabilityToBePaidAfterYearFour_documentation_en-US" xlink:label="lab_pnm_FinanceLeaseLiabilityToBePaidAfterYearFour" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability, to be Paid, after Year Four</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FinanceLeaseLiabilityToBePaidAfterYearFour" xlink:href="pnm-20230331.xsd#pnm_FinanceLeaseLiabilityToBePaidAfterYearFour"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FinanceLeaseLiabilityToBePaidAfterYearFour" xlink:to="lab_pnm_FinanceLeaseLiabilityToBePaidAfterYearFour" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PNMOwnedAssetsMember_e68803b1-8905-4370-801f-bcb318636e0b_terseLabel_en-US" xlink:label="lab_pnm_PNMOwnedAssetsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM Owned Assets</link:label>
    <link:label id="lab_pnm_PNMOwnedAssetsMember_label_en-US" xlink:label="lab_pnm_PNMOwnedAssetsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM Owned Assets [Member]</link:label>
    <link:label id="lab_pnm_PNMOwnedAssetsMember_documentation_en-US" xlink:label="lab_pnm_PNMOwnedAssetsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM Owned Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PNMOwnedAssetsMember" xlink:href="pnm-20230331.xsd#pnm_PNMOwnedAssetsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PNMOwnedAssetsMember" xlink:to="lab_pnm_PNMOwnedAssetsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_32945898-53be-4869-aaa6-104aa1095692_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Average Number of Common Shares:</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Number of Shares Outstanding, Basic [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" xlink:to="lab_us-gaap_WeightedAverageNumberOfSharesOutstandingBasicAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_3970f557-d636-401f-8e52-a21847f9124f_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net cash flows from operating activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Operating Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:to="lab_us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeAssets_86aef2c8-6cf9-4d93-a6a5-0a8b7a924b28_totalLabel_en-US" xlink:label="lab_us-gaap_DerivativeAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative asset</link:label>
    <link:label id="lab_us-gaap_DerivativeAssets_label_en-US" xlink:label="lab_us-gaap_DerivativeAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative Asset</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeAssets" xlink:to="lab_us-gaap_DerivativeAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent_e89cff3e-f369-4113-a41b-3145c918ef18_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pension liability adjustment, income tax expense (benefit)</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax, Attributable to Parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent" xlink:to="lab_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansTaxPortionAttributableToParent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearThree_0481a770-d03a-4b7f-b0c7-9b043c6d4a2c_terseLabel_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearThree" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maximum number of shares awarded in year three (in shares)</link:label>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearThree_label_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearThree" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares in Year Three</link:label>
    <link:label id="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearThree_documentation_en-US" xlink:label="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearThree" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-based Compensation Arrangement by Share-based Payment Award, Maximum Number of Shares in Year Three</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearThree" xlink:href="pnm-20230331.xsd#pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearThree"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearThree" xlink:to="lab_pnm_ShareBasedCompensationArrangementByShareBasedPaymentAwardMaximumNumberOfSharesInYearThree" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_DebtInstrumentCovenantDebtToCapitalizationRatio_b7523491-b0cb-435d-9688-aa3f92af43ad_terseLabel_en-US" xlink:label="lab_pnm_DebtInstrumentCovenantDebtToCapitalizationRatio" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Ratio of debt to capital (less than or equal to)</link:label>
    <link:label id="lab_pnm_DebtInstrumentCovenantDebtToCapitalizationRatio_label_en-US" xlink:label="lab_pnm_DebtInstrumentCovenantDebtToCapitalizationRatio" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Covenant, Debt To Capitalization Ratio</link:label>
    <link:label id="lab_pnm_DebtInstrumentCovenantDebtToCapitalizationRatio_documentation_en-US" xlink:label="lab_pnm_DebtInstrumentCovenantDebtToCapitalizationRatio" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Covenant, Debt To Capitalization Ratio</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_DebtInstrumentCovenantDebtToCapitalizationRatio" xlink:href="pnm-20230331.xsd#pnm_DebtInstrumentCovenantDebtToCapitalizationRatio"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_DebtInstrumentCovenantDebtToCapitalizationRatio" xlink:to="lab_pnm_DebtInstrumentCovenantDebtToCapitalizationRatio" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_LegalEntityAxis_28f1f3dc-75af-42d3-8ed8-8bf2675f02cf_terseLabel_en-US" xlink:label="lab_dei_LegalEntityAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:label id="lab_dei_LegalEntityAxis_label_en-US" xlink:label="lab_dei_LegalEntityAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Legal Entity [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_LegalEntityAxis" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_LegalEntityAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LegalEntityAxis" xlink:to="lab_dei_LegalEntityAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfProceedings_a8197ffd-e104-4bce-8018-7ce8011b9503_terseLabel_en-US" xlink:label="lab_pnm_NumberOfProceedings" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of proceedings</link:label>
    <link:label id="lab_pnm_NumberOfProceedings_label_en-US" xlink:label="lab_pnm_NumberOfProceedings" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Proceedings</link:label>
    <link:label id="lab_pnm_NumberOfProceedings_documentation_en-US" xlink:label="lab_pnm_NumberOfProceedings" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Proceedings</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfProceedings" xlink:href="pnm-20230331.xsd#pnm_NumberOfProceedings"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfProceedings" xlink:to="lab_pnm_NumberOfProceedings" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure_2fb9831d-a276-4c55-bbbb-844828226898_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Economic Hedges (in mmbtu and mwh)</link:label>
    <link:label id="lab_us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure_label_en-US" xlink:label="lab_us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative, Nonmonetary Notional Amount, Energy Measure</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure" xlink:to="lab_us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongTermContractForPurchaseOfElectricPowerAxis_968f1d26-0d1f-4cd1-809e-f959e3583550_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermContractForPurchaseOfElectricPowerAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Contract for Purchase of Electric Power [Axis]</link:label>
    <link:label id="lab_us-gaap_LongTermContractForPurchaseOfElectricPowerAxis_label_en-US" xlink:label="lab_us-gaap_LongTermContractForPurchaseOfElectricPowerAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-Term Contract for Purchase of Electric Power [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongTermContractForPurchaseOfElectricPowerAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermContractForPurchaseOfElectricPowerAxis" xlink:to="lab_us-gaap_LongTermContractForPurchaseOfElectricPowerAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesIssuedBasic_870d56b1-2f4f-424c-aa40-ae8bf72a4b48_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesIssuedBasic" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Outstanding during period (in shares)</link:label>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesIssuedBasic_label_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesIssuedBasic" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Weighted Average Number of Shares Issued, Basic</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_WeightedAverageNumberOfSharesIssuedBasic" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_WeightedAverageNumberOfSharesIssuedBasic"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_WeightedAverageNumberOfSharesIssuedBasic" xlink:to="lab_us-gaap_WeightedAverageNumberOfSharesIssuedBasic" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UtilityPlantDomain_6a0377d6-958a-4192-a115-5cedbc73a703_terseLabel_en-US" xlink:label="lab_us-gaap_UtilityPlantDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Utility Plant [Domain]</link:label>
    <link:label id="lab_us-gaap_UtilityPlantDomain_label_en-US" xlink:label="lab_us-gaap_UtilityPlantDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Utility Plant [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UtilityPlantDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UtilityPlantDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UtilityPlantDomain" xlink:to="lab_us-gaap_UtilityPlantDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_389adb13-d794-4bfa-92fc-418a22a32608_terseLabel_en-US" xlink:label="lab_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accrued pension liability and postretirement benefit cost</link:label>
    <link:label id="lab_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_label_en-US" xlink:label="lab_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liability, Defined Benefit Plan, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:to="lab_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfLandownersInvolvedInTheAppeal_c35d36ad-3c62-4f0c-afec-de598bf80ec7_terseLabel_en-US" xlink:label="lab_pnm_NumberOfLandownersInvolvedInTheAppeal" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of landowners involved in the appeal</link:label>
    <link:label id="lab_pnm_NumberOfLandownersInvolvedInTheAppeal_label_en-US" xlink:label="lab_pnm_NumberOfLandownersInvolvedInTheAppeal" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Landowners Involved In The Appeal</link:label>
    <link:label id="lab_pnm_NumberOfLandownersInvolvedInTheAppeal_documentation_en-US" xlink:label="lab_pnm_NumberOfLandownersInvolvedInTheAppeal" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Landowners Involved In The Appeal</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfLandownersInvolvedInTheAppeal" xlink:href="pnm-20230331.xsd#pnm_NumberOfLandownersInvolvedInTheAppeal"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfLandownersInvolvedInTheAppeal" xlink:to="lab_pnm_NumberOfLandownersInvolvedInTheAppeal" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeLiabilitiesCurrent_3f21e7cf-e7ac-479a-9591-ddfb5d3672f3_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current derivative liability</link:label>
    <link:label id="lab_us-gaap_DerivativeLiabilitiesCurrent_c4a0a1b9-b5bf-4eb1-9b78-f528d7dc68da_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DerivativeLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other current liabilities</link:label>
    <link:label id="lab_us-gaap_DerivativeLiabilitiesCurrent_label_en-US" xlink:label="lab_us-gaap_DerivativeLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative Liability, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeLiabilitiesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeLiabilitiesCurrent" xlink:to="lab_us-gaap_DerivativeLiabilitiesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements_921685bf-cb83-4f78-83d3-1dad4473ddb2_verboseLabel_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Preferred Stock of Subsidiary without mandatory redemption requirements ($100 stated value; 10,000,000 shares authorized; issued and outstanding 115,293 shares)</link:label>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements_75228676-5a77-4086-9940-6bdea51ccfa1_terseLabel_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Preferred Stock without mandatory redemption requirements ($100 stated value; 10,000,000 shares authorized; issued and outstanding 115,293 shares)</link:label>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements_label_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements</link:label>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements_documentation_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements" xlink:href="pnm-20230331.xsd#pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements" xlink:to="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirements" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DividendsPreferredStockCash_0e459b81-ebe1-4b8c-8be3-0f836730f6e9_negatedLabel_en-US" xlink:label="lab_us-gaap_DividendsPreferredStockCash" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Dividends declared on preferred stock</link:label>
    <link:label id="lab_us-gaap_DividendsPreferredStockCash_label_en-US" xlink:label="lab_us-gaap_DividendsPreferredStockCash" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Dividends, Preferred Stock, Cash</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPreferredStockCash" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DividendsPreferredStockCash"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendsPreferredStockCash" xlink:to="lab_us-gaap_DividendsPreferredStockCash" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesExcessReturnOnJurisdictionalEquityThatWouldRequireRefund_da4dbfe2-107a-4319-b3f5-1bf0f34a1a17_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesExcessReturnOnJurisdictionalEquityThatWouldRequireRefund" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Excess return on jurisdictional equity that would require refund</link:label>
    <link:label id="lab_pnm_PublicUtilitiesExcessReturnOnJurisdictionalEquityThatWouldRequireRefund_label_en-US" xlink:label="lab_pnm_PublicUtilitiesExcessReturnOnJurisdictionalEquityThatWouldRequireRefund" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Excess Return On Jurisdictional Equity That Would Require Refund</link:label>
    <link:label id="lab_pnm_PublicUtilitiesExcessReturnOnJurisdictionalEquityThatWouldRequireRefund_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesExcessReturnOnJurisdictionalEquityThatWouldRequireRefund" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Excess Return On Jurisdictional Equity That Would Require Refund</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesExcessReturnOnJurisdictionalEquityThatWouldRequireRefund" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesExcessReturnOnJurisdictionalEquityThatWouldRequireRefund"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesExcessReturnOnJurisdictionalEquityThatWouldRequireRefund" xlink:to="lab_pnm_PublicUtilitiesExcessReturnOnJurisdictionalEquityThatWouldRequireRefund" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PreferredStockSharesIssued_28178a4b-5c83-4f34-ae28-4e5b85e79848_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative preferred stock, shares issued (in shares)</link:label>
    <link:label id="lab_us-gaap_PreferredStockSharesIssued_label_en-US" xlink:label="lab_us-gaap_PreferredStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock, Shares Issued</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockSharesIssued"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockSharesIssued" xlink:to="lab_us-gaap_PreferredStockSharesIssued" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CashFlowLesseeAbstract_0183c1a8-a9ce-405c-9cd0-b0699bc534f1_terseLabel_en-US" xlink:label="lab_pnm_CashFlowLesseeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash paid for amounts included in the measurement of lease liabilities:</link:label>
    <link:label id="lab_pnm_CashFlowLesseeAbstract_label_en-US" xlink:label="lab_pnm_CashFlowLesseeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash Flow, Lessee [Abstract]</link:label>
    <link:label id="lab_pnm_CashFlowLesseeAbstract_documentation_en-US" xlink:label="lab_pnm_CashFlowLesseeAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash Flow, Lessee [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CashFlowLesseeAbstract" xlink:href="pnm-20230331.xsd#pnm_CashFlowLesseeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CashFlowLesseeAbstract" xlink:to="lab_pnm_CashFlowLesseeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_OtherPropertyAndInvestmentsAbstract_2da6799c-f016-4a5f-9f91-131d40870c7c_terseLabel_en-US" xlink:label="lab_pnm_OtherPropertyAndInvestmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Property and Investments:</link:label>
    <link:label id="lab_pnm_OtherPropertyAndInvestmentsAbstract_label_en-US" xlink:label="lab_pnm_OtherPropertyAndInvestmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Property And Investments [Abstract]</link:label>
    <link:label id="lab_pnm_OtherPropertyAndInvestmentsAbstract_documentation_en-US" xlink:label="lab_pnm_OtherPropertyAndInvestmentsAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Property And Investments [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_OtherPropertyAndInvestmentsAbstract" xlink:href="pnm-20230331.xsd#pnm_OtherPropertyAndInvestmentsAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_OtherPropertyAndInvestmentsAbstract" xlink:to="lab_pnm_OtherPropertyAndInvestmentsAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementBusinessSegmentsAxis_d0abcbb5-fed8-46ea-889e-4ceeb4c63fdc_terseLabel_en-US" xlink:label="lab_us-gaap_StatementBusinessSegmentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segments [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementBusinessSegmentsAxis_label_en-US" xlink:label="lab_us-gaap_StatementBusinessSegmentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segments [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementBusinessSegmentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis" xlink:to="lab_us-gaap_StatementBusinessSegmentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtDisclosureTextBlock_ed2e9d45-9694-42b9-84da-2327db5a5448_terseLabel_en-US" xlink:label="lab_us-gaap_DebtDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financing</link:label>
    <link:label id="lab_us-gaap_DebtDisclosureTextBlock_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Disclosure [Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtDisclosureTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtDisclosureTextBlock" xlink:to="lab_us-gaap_DebtDisclosureTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UnusualRiskOrUncertaintyByNatureAxis_ac965dd9-8d31-4372-90cc-1f3cc59aea83_terseLabel_en-US" xlink:label="lab_us-gaap_UnusualRiskOrUncertaintyByNatureAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unusual Risk or Uncertainty, Nature [Axis]</link:label>
    <link:label id="lab_us-gaap_UnusualRiskOrUncertaintyByNatureAxis_label_en-US" xlink:label="lab_us-gaap_UnusualRiskOrUncertaintyByNatureAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unusual Risk or Uncertainty, Nature [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnusualRiskOrUncertaintyByNatureAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UnusualRiskOrUncertaintyByNatureAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnusualRiskOrUncertaintyByNatureAxis" xlink:to="lab_us-gaap_UnusualRiskOrUncertaintyByNatureAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RetailElectricEconomyEnergyServiceCustomersMember_a38e3dd5-ef3a-457e-9c9d-724cf482138a_terseLabel_en-US" xlink:label="lab_pnm_RetailElectricEconomyEnergyServiceCustomersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Economy energy service</link:label>
    <link:label id="lab_pnm_RetailElectricEconomyEnergyServiceCustomersMember_label_en-US" xlink:label="lab_pnm_RetailElectricEconomyEnergyServiceCustomersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retail Electric, Economy Energy Service Customers [Member]</link:label>
    <link:label id="lab_pnm_RetailElectricEconomyEnergyServiceCustomersMember_documentation_en-US" xlink:label="lab_pnm_RetailElectricEconomyEnergyServiceCustomersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retail Electric, Economy Energy Service Customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RetailElectricEconomyEnergyServiceCustomersMember" xlink:href="pnm-20230331.xsd#pnm_RetailElectricEconomyEnergyServiceCustomersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_RetailElectricEconomyEnergyServiceCustomersMember" xlink:to="lab_pnm_RetailElectricEconomyEnergyServiceCustomersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ProductsAndServicesDomain_71aab4a2-d637-40e7-b439-436e101512c5_terseLabel_en-US" xlink:label="lab_srt_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Product and Service [Domain]</link:label>
    <link:label id="lab_srt_ProductsAndServicesDomain_label_en-US" xlink:label="lab_srt_ProductsAndServicesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Product and Service [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductsAndServicesDomain" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ProductsAndServicesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductsAndServicesDomain" xlink:to="lab_srt_ProductsAndServicesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityShellCompany_3dece82a-2d03-489b-aca1-2831ae0663ab_terseLabel_en-US" xlink:label="lab_dei_EntityShellCompany" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Shell Company</link:label>
    <link:label id="lab_dei_EntityShellCompany_label_en-US" xlink:label="lab_dei_EntityShellCompany" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Shell Company</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityShellCompany" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityShellCompany"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityShellCompany" xlink:to="lab_dei_EntityShellCompany" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CoolingTowersMember_e61dd6df-b1db-47c5-8c39-ec333c2f5382_terseLabel_en-US" xlink:label="lab_pnm_CoolingTowersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cooling Towers</link:label>
    <link:label id="lab_pnm_CoolingTowersMember_label_en-US" xlink:label="lab_pnm_CoolingTowersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cooling Towers [Member]</link:label>
    <link:label id="lab_pnm_CoolingTowersMember_documentation_en-US" xlink:label="lab_pnm_CoolingTowersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cooling Towers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CoolingTowersMember" xlink:href="pnm-20230331.xsd#pnm_CoolingTowersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CoolingTowersMember" xlink:to="lab_pnm_CoolingTowersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RetailElectricIndustrialCustomersMember_cd4809ba-aac1-4e71-99b0-f0b92cad802f_terseLabel_en-US" xlink:label="lab_pnm_RetailElectricIndustrialCustomersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Industrial</link:label>
    <link:label id="lab_pnm_RetailElectricIndustrialCustomersMember_label_en-US" xlink:label="lab_pnm_RetailElectricIndustrialCustomersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retail Electric, Industrial Customers [Member]</link:label>
    <link:label id="lab_pnm_RetailElectricIndustrialCustomersMember_documentation_en-US" xlink:label="lab_pnm_RetailElectricIndustrialCustomersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retail Electric, Industrial Customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RetailElectricIndustrialCustomersMember" xlink:href="pnm-20230331.xsd#pnm_RetailElectricIndustrialCustomersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_RetailElectricIndustrialCustomersMember" xlink:to="lab_pnm_RetailElectricIndustrialCustomersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_BusinessCombinationCashRightPerCommonShare_a149ce77-12df-421e-b6bf-2b1bf16c2861_terseLabel_en-US" xlink:label="lab_pnm_BusinessCombinationCashRightPerCommonShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business combination, cash right per common share (in dollars per share)</link:label>
    <link:label id="lab_pnm_BusinessCombinationCashRightPerCommonShare_label_en-US" xlink:label="lab_pnm_BusinessCombinationCashRightPerCommonShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Combination, Cash Right Per Common Share</link:label>
    <link:label id="lab_pnm_BusinessCombinationCashRightPerCommonShare_documentation_en-US" xlink:label="lab_pnm_BusinessCombinationCashRightPerCommonShare" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Business Combination, Cash Right Per Common Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_BusinessCombinationCashRightPerCommonShare" xlink:href="pnm-20230331.xsd#pnm_BusinessCombinationCashRightPerCommonShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_BusinessCombinationCashRightPerCommonShare" xlink:to="lab_pnm_BusinessCombinationCashRightPerCommonShare" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfLeasesUnderWhichLeaseTermWasExtended_278e1a27-3d4a-42e9-9d0a-8442acc51021_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfLeasesUnderWhichLeaseTermWasExtended" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of leases under which lease term was extended</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfLeasesUnderWhichLeaseTermWasExtended_label_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfLeasesUnderWhichLeaseTermWasExtended" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Number Of Leases Under Which Lease Term Was Extended</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfLeasesUnderWhichLeaseTermWasExtended_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfLeasesUnderWhichLeaseTermWasExtended" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Number Of Leases Under Which Lease Term Was Extended</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesNumberOfLeasesUnderWhichLeaseTermWasExtended" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesNumberOfLeasesUnderWhichLeaseTermWasExtended"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesNumberOfLeasesUnderWhichLeaseTermWasExtended" xlink:to="lab_pnm_PublicUtilitiesNumberOfLeasesUnderWhichLeaseTermWasExtended" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_789c2478-c4b7-4e9b-94f1-f86629f53e77_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2024</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, Year One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ReplacementResourcePortfolioTwoMember_75301a00-f7c7-48da-bbc3-1bcdff2036e2_terseLabel_en-US" xlink:label="lab_pnm_ReplacementResourcePortfolioTwoMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Replacement Resource Portfolio Two</link:label>
    <link:label id="lab_pnm_ReplacementResourcePortfolioTwoMember_label_en-US" xlink:label="lab_pnm_ReplacementResourcePortfolioTwoMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Replacement Resource Portfolio Two [Member]</link:label>
    <link:label id="lab_pnm_ReplacementResourcePortfolioTwoMember_documentation_en-US" xlink:label="lab_pnm_ReplacementResourcePortfolioTwoMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Replacement Resource Portfolio Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ReplacementResourcePortfolioTwoMember" xlink:href="pnm-20230331.xsd#pnm_ReplacementResourcePortfolioTwoMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ReplacementResourcePortfolioTwoMember" xlink:to="lab_pnm_ReplacementResourcePortfolioTwoMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_EnergyEfficiencyAndLoadManagementProgramMember_8b4a3adb-bf8d-458d-9cc1-4b619d0e346a_terseLabel_en-US" xlink:label="lab_pnm_EnergyEfficiencyAndLoadManagementProgramMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy Efficiency and Load Management Program</link:label>
    <link:label id="lab_pnm_EnergyEfficiencyAndLoadManagementProgramMember_label_en-US" xlink:label="lab_pnm_EnergyEfficiencyAndLoadManagementProgramMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy Efficiency and Load Management Program [Member]</link:label>
    <link:label id="lab_pnm_EnergyEfficiencyAndLoadManagementProgramMember_documentation_en-US" xlink:label="lab_pnm_EnergyEfficiencyAndLoadManagementProgramMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy Efficiency and Load Management Program</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_EnergyEfficiencyAndLoadManagementProgramMember" xlink:href="pnm-20230331.xsd#pnm_EnergyEfficiencyAndLoadManagementProgramMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_EnergyEfficiencyAndLoadManagementProgramMember" xlink:to="lab_pnm_EnergyEfficiencyAndLoadManagementProgramMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfAllotmentParcelsAtIssueNotToBeCondemned_bcd94f41-9638-4cde-bfcb-b7972b4255f7_terseLabel_en-US" xlink:label="lab_pnm_NumberOfAllotmentParcelsAtIssueNotToBeCondemned" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of allotment parcels at issue that are not to be condemned</link:label>
    <link:label id="lab_pnm_NumberOfAllotmentParcelsAtIssueNotToBeCondemned_label_en-US" xlink:label="lab_pnm_NumberOfAllotmentParcelsAtIssueNotToBeCondemned" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Allotment Parcels' At Issue, Not To Be Condemned</link:label>
    <link:label id="lab_pnm_NumberOfAllotmentParcelsAtIssueNotToBeCondemned_documentation_en-US" xlink:label="lab_pnm_NumberOfAllotmentParcelsAtIssueNotToBeCondemned" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of allotment parcels' at issue, Not to be condemned</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfAllotmentParcelsAtIssueNotToBeCondemned" xlink:href="pnm-20230331.xsd#pnm_NumberOfAllotmentParcelsAtIssueNotToBeCondemned"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfAllotmentParcelsAtIssueNotToBeCondemned" xlink:to="lab_pnm_NumberOfAllotmentParcelsAtIssueNotToBeCondemned" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinancialInstrumentAxis_fc97d99e-3b60-45ce-ae51-69a3d6e81170_terseLabel_en-US" xlink:label="lab_us-gaap_FinancialInstrumentAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Available-for-sale Securities, Major Types of Debt and Equity Securities [Axis]</link:label>
    <link:label id="lab_us-gaap_FinancialInstrumentAxis_label_en-US" xlink:label="lab_us-gaap_FinancialInstrumentAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financial Instrument [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinancialInstrumentAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinancialInstrumentAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinancialInstrumentAxis" xlink:to="lab_us-gaap_FinancialInstrumentAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesGridModernizationInvestment_c29c8571-0d27-4a6e-a967-1c43b0327fbf_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesGridModernizationInvestment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Grid modernization investment</link:label>
    <link:label id="lab_pnm_PublicUtilitiesGridModernizationInvestment_label_en-US" xlink:label="lab_pnm_PublicUtilitiesGridModernizationInvestment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Grid Modernization Investment</link:label>
    <link:label id="lab_pnm_PublicUtilitiesGridModernizationInvestment_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesGridModernizationInvestment" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Grid Modernization Investment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesGridModernizationInvestment" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesGridModernizationInvestment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesGridModernizationInvestment" xlink:to="lab_pnm_PublicUtilitiesGridModernizationInvestment" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DerivativeNonmonetaryNotionalAmount_c345d0b8-9a7d-46f3-a50c-10c90fcb26b2_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeNonmonetaryNotionalAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative, Nonmonetary Notional Amount</link:label>
    <link:label id="lab_us-gaap_DerivativeNonmonetaryNotionalAmount_label_en-US" xlink:label="lab_us-gaap_DerivativeNonmonetaryNotionalAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative, Nonmonetary Notional Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeNonmonetaryNotionalAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DerivativeNonmonetaryNotionalAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeNonmonetaryNotionalAmount" xlink:to="lab_us-gaap_DerivativeNonmonetaryNotionalAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LongTermContractForPurchaseOfElectricPowerFixedCosts_4931b0a4-5065-4cd9-a316-ed1b341e7442_terseLabel_en-US" xlink:label="lab_pnm_LongTermContractForPurchaseOfElectricPowerFixedCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payment for fixed costs</link:label>
    <link:label id="lab_pnm_LongTermContractForPurchaseOfElectricPowerFixedCosts_label_en-US" xlink:label="lab_pnm_LongTermContractForPurchaseOfElectricPowerFixedCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long Term Contract For Purchase of Electric Power Fixed Costs</link:label>
    <link:label id="lab_pnm_LongTermContractForPurchaseOfElectricPowerFixedCosts_documentation_en-US" xlink:label="lab_pnm_LongTermContractForPurchaseOfElectricPowerFixedCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long Term Contract For Purchase of Electric Power Fixed Charges</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LongTermContractForPurchaseOfElectricPowerFixedCosts" xlink:href="pnm-20230331.xsd#pnm_LongTermContractForPurchaseOfElectricPowerFixedCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LongTermContractForPurchaseOfElectricPowerFixedCosts" xlink:to="lab_pnm_LongTermContractForPurchaseOfElectricPowerFixedCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SubsequentEventMember_e4477cb1-c3b1-4508-bdcf-a7739b2eb59b_terseLabel_en-US" xlink:label="lab_us-gaap_SubsequentEventMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsequent event</link:label>
    <link:label id="lab_us-gaap_SubsequentEventMember_label_en-US" xlink:label="lab_us-gaap_SubsequentEventMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Subsequent Event [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SubsequentEventMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SubsequentEventMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsequentEventMember" xlink:to="lab_us-gaap_SubsequentEventMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentPeriodEndDate_3dc93345-ea34-4361-9735-882581cac3d5_terseLabel_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Period End Date</link:label>
    <link:label id="lab_dei_DocumentPeriodEndDate_label_en-US" xlink:label="lab_dei_DocumentPeriodEndDate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Period End Date</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentPeriodEndDate" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentPeriodEndDate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentPeriodEndDate" xlink:to="lab_dei_DocumentPeriodEndDate" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseProductsAndServices_dcaab1d9-8f1f-412f-9d9b-405778c69bdb_terseLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseProductsAndServices" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy production costs</link:label>
    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseProductsAndServices_label_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseProductsAndServices" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Utilities Operating Expense, Products and Services</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseProductsAndServices" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UtilitiesOperatingExpenseProductsAndServices"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UtilitiesOperatingExpenseProductsAndServices" xlink:to="lab_us-gaap_UtilitiesOperatingExpenseProductsAndServices" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TotalNumberOfAgreements_86f26cb4-5610-471c-9859-7b336905dc1f_terseLabel_en-US" xlink:label="lab_pnm_TotalNumberOfAgreements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total number of agreements</link:label>
    <link:label id="lab_pnm_TotalNumberOfAgreements_label_en-US" xlink:label="lab_pnm_TotalNumberOfAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total Number Of Agreements</link:label>
    <link:label id="lab_pnm_TotalNumberOfAgreements_documentation_en-US" xlink:label="lab_pnm_TotalNumberOfAgreements" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total Number Of Agreements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TotalNumberOfAgreements" xlink:href="pnm-20230331.xsd#pnm_TotalNumberOfAgreements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_TotalNumberOfAgreements" xlink:to="lab_pnm_TotalNumberOfAgreements" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_GainLossOnSaleOfInvestments_322784a1-0985-4081-b97b-4aa8f1c6679b_negatedLabel_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfInvestments" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">(Gains) losses on investment securities</link:label>
    <link:label id="lab_us-gaap_GainLossOnSaleOfInvestments_label_en-US" xlink:label="lab_us-gaap_GainLossOnSaleOfInvestments" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gain (Loss) on Sale of Investments</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GainLossOnSaleOfInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_GainLossOnSaleOfInvestments"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GainLossOnSaleOfInvestments" xlink:to="lab_us-gaap_GainLossOnSaleOfInvestments" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue_b0ff0f90-20a1-43f4-98ff-321d6bf6f4e3_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Annual Increase in Revenue</link:label>
    <link:label id="lab_pnm_PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue_label_en-US" xlink:label="lab_pnm_PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Increase Annual Transmission Service Revenue</link:label>
    <link:label id="lab_pnm_PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Increase Annual Transmission Service Revenue</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue" xlink:to="lab_pnm_PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UnusualOrInfrequentItemAxis_2663821a-2335-490a-9f4d-0ab18f7d191b_terseLabel_en-US" xlink:label="lab_us-gaap_UnusualOrInfrequentItemAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unusual or Infrequent Item, or Both [Axis]</link:label>
    <link:label id="lab_us-gaap_UnusualOrInfrequentItemAxis_label_en-US" xlink:label="lab_us-gaap_UnusualOrInfrequentItemAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unusual or Infrequent Item, or Both [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnusualOrInfrequentItemAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UnusualOrInfrequentItemAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UnusualOrInfrequentItemAxis" xlink:to="lab_us-gaap_UnusualOrInfrequentItemAxis" xlink:type="arc" order="1"/>
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    <link:label id="lab_us-gaap_SegmentDomain_label_en-US" xlink:label="lab_us-gaap_SegmentDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segments [Domain]</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfGoodwillTable_febf1d29-2e40-47fe-8f82-7c33d06ba27b_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfGoodwillTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Goodwill [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfGoodwillTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfGoodwillTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Goodwill [Table]</link:label>
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    <link:label id="lab_us-gaap_EarningsPerShareTextBlock_e504b237-4476-4073-b60c-40c6323aa0d9_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Earnings Per Share</link:label>
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    <link:label id="lab_pnm_AccumulatedAmortizationNuclearFuel_0d854dff-69df-4cda-8de8-b1e5b9dd0ded_terseLabel_en-US" xlink:label="lab_pnm_AccumulatedAmortizationNuclearFuel" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated depreciation, nuclear fuel</link:label>
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    <link:label id="lab_pnm_AccumulatedAmortizationNuclearFuel_documentation_en-US" xlink:label="lab_pnm_AccumulatedAmortizationNuclearFuel" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated amortization, nuclear fuel</link:label>
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    <link:label id="lab_us-gaap_RegulatoryAssetDomain_9ee72c9c-ee96-4a11-8464-e8f9841dd216_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Asset [Domain]</link:label>
    <link:label id="lab_us-gaap_RegulatoryAssetDomain_label_en-US" xlink:label="lab_us-gaap_RegulatoryAssetDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Asset [Domain]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryAssetDomain" xlink:to="lab_us-gaap_RegulatoryAssetDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesLeasedPVNGSCapacityExpiration_68305855-1485-430c-a93d-ba68b830d835_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesLeasedPVNGSCapacityExpiration" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leased PVNGS capacity, expiration</link:label>
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    <link:label id="lab_pnm_PublicUtilitiesLeasedPVNGSCapacityExpiration_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesLeasedPVNGSCapacityExpiration" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Leased PVNGS Capacity, Expiration</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesLeasedPVNGSCapacityExpiration" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesLeasedPVNGSCapacityExpiration"/>
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    <link:label id="lab_pnm_SJGSDecommissioningTrustMember_5a066a2e-9adf-4e0f-9c01-3b8875250720_terseLabel_en-US" xlink:label="lab_pnm_SJGSDecommissioningTrustMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">SJGS Decommissioning Trust</link:label>
    <link:label id="lab_pnm_SJGSDecommissioningTrustMember_label_en-US" xlink:label="lab_pnm_SJGSDecommissioningTrustMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">SJGS Decommissioning Trust [Member]</link:label>
    <link:label id="lab_pnm_SJGSDecommissioningTrustMember_documentation_en-US" xlink:label="lab_pnm_SJGSDecommissioningTrustMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">SJGS Decommissioning Trust</link:label>
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    <link:label id="lab_us-gaap_ScheduleOfShortTermDebtTextBlock_c0d5d610-fd3a-46bf-9d80-cc373ff38f79_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfShortTermDebtTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Short-term Debt</link:label>
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    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_704fafde-1ca5-463c-bcca-70ae93af0460_totalLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Comprehensive Income</link:label>
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest_label_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_c6de35e6-e68e-4d20-910a-72ef1d02caf8_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Award Type [Domain]</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Award Type [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardAwardTypeAndPlanNameDomain"/>
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    <link:label id="lab_pnm_LaJoyaWindMember_037e9691-61fc-498d-9b9c-da2e762bf566_terseLabel_en-US" xlink:label="lab_pnm_LaJoyaWindMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">La Joya Wind</link:label>
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    <link:label id="lab_pnm_LaJoyaWindMember_documentation_en-US" xlink:label="lab_pnm_LaJoyaWindMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">La Joya Wind [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LaJoyaWindMember" xlink:href="pnm-20230331.xsd#pnm_LaJoyaWindMember"/>
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    <link:label id="lab_us-gaap_IncomeTaxContingencyTable_f45d81fe-3c40-444d-8431-d057addcff6b_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxContingencyTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Tax Contingency [Table]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxContingencyTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeTaxContingencyTable"/>
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    <link:label id="lab_us-gaap_OperatingLeaseResidualValueOfLeasedAsset_f18f4cbb-49ad-49d3-a1bd-08de1459b1b8_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseResidualValueOfLeasedAsset" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating lease, residual value of leased asset</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseResidualValueOfLeasedAsset" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseResidualValueOfLeasedAsset"/>
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    <link:label id="lab_us-gaap_IncomeTaxesReceivable_a90fa1d5-ec6f-4dbb-b7fa-78b493fc8011_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeTaxesReceivable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income taxes receivable</link:label>
    <link:label id="lab_us-gaap_IncomeTaxesReceivable_label_en-US" xlink:label="lab_us-gaap_IncomeTaxesReceivable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Taxes Receivable, Current</link:label>
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    <link:label id="lab_pnm_CommercialProvidersMember_054abf2b-43fc-4951-9c78-f4d9775744f2_terseLabel_en-US" xlink:label="lab_pnm_CommercialProvidersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commercial providers</link:label>
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    <link:label id="lab_pnm_CommercialProvidersMember_documentation_en-US" xlink:label="lab_pnm_CommercialProvidersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commercial Providers [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CommercialProvidersMember" xlink:href="pnm-20230331.xsd#pnm_CommercialProvidersMember"/>
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    <link:label id="lab_us-gaap_RegulatoryAgencyAxis_4f1d31ab-fef4-4abd-b2d6-053e007adea4_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAgencyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Agency [Axis]</link:label>
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    <link:label id="lab_pnm_PublicUtilitiesNumberOfMegaWattsOfSolarPhotovoltaicCapacity_737a8f2b-0466-471d-a882-31a56a2746f0_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfMegaWattsOfSolarPhotovoltaicCapacity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of megawatts of Solar PV facilities</link:label>
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    <link:label id="lab_us-gaap_OperatingExpensesAbstract_ce4cf860-1d2f-40ea-bed8-97028f7dcb76_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingExpensesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Expenses:</link:label>
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    <link:label id="lab_pnm_DefinedBenefitPlanEstimatedFutureContributionsYearFive_cd203cb0-3403-490d-84de-8b9d2cc9c06f_terseLabel_en-US" xlink:label="lab_pnm_DefinedBenefitPlanEstimatedFutureContributionsYearFive" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Estimated future contributions, year five</link:label>
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    <link:label id="lab_us-gaap_StatementOfFinancialPositionAbstract_db63ac94-4673-43bf-8005-64b8d261d5e2_terseLabel_en-US" xlink:label="lab_us-gaap_StatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Financial Position [Abstract]</link:label>
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    <link:label id="lab_pnm_PNM202175MillionTermLoanMember_8ebb23e3-4aa6-42d5-b01b-4df93a43fb4c_terseLabel_en-US" xlink:label="lab_pnm_PNM202175MillionTermLoanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM 2021 75 Million Term Loan</link:label>
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    <link:label id="lab_us-gaap_AssetRetirementObligationsNoncurrent_42d0b5c9-01a1-4955-bda3-f421e8a33252_verboseLabel_en-US" xlink:label="lab_us-gaap_AssetRetirementObligationsNoncurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Asset retirement obligations</link:label>
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    <link:label id="lab_us-gaap_PensionPlansDefinedBenefitMember_a5f08e2f-1042-4e41-bab5-6ed7bbec38fe_terseLabel_en-US" xlink:label="lab_us-gaap_PensionPlansDefinedBenefitMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pension Plan</link:label>
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    <link:label id="lab_us-gaap_ReclassificationFromAociCurrentPeriodTax_39dc968f-3650-4a81-a150-bd19168ace7a_terseLabel_en-US" xlink:label="lab_us-gaap_ReclassificationFromAociCurrentPeriodTax" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income tax impact of amounts reclassified</link:label>
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    <link:label id="lab_us-gaap_EquipmentMember_1ea7f5f0-ed71-453b-abb1-a6d52c60de35_terseLabel_en-US" xlink:label="lab_us-gaap_EquipmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equipment</link:label>
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    <link:label id="lab_pnm_DefinedBenefitPlanPlanAssetsEstimatedDisbursementByEmployerCurrentYear_afbb67b4-9de9-4d4a-8963-6f6b77dea055_terseLabel_en-US" xlink:label="lab_pnm_DefinedBenefitPlanPlanAssetsEstimatedDisbursementByEmployerCurrentYear" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Estimated disbursement by employer, current year</link:label>
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    <link:label id="lab_us-gaap_VariableInterestEntityDisclosureTextBlock_3fd94178-7974-422d-93a4-00aa4a4481b4_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Interest Entities</link:label>
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    <link:label id="lab_pnm_IncreaseDecreaseInOtherThanTemporaryLossesInvestmentsPortionRecognizedInEarningsNetAvailableForSaleSecurities_ee8c047d-3edf-4603-b078-3445595fc10d_terseLabel_en-US" xlink:label="lab_pnm_IncreaseDecreaseInOtherThanTemporaryLossesInvestmentsPortionRecognizedInEarningsNetAvailableForSaleSecurities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">(Increase)/decrease in other than temporary losses of available-for-sale securities, net portion recognized in earnings</link:label>
    <link:label id="lab_pnm_IncreaseDecreaseInOtherThanTemporaryLossesInvestmentsPortionRecognizedInEarningsNetAvailableForSaleSecurities_label_en-US" xlink:label="lab_pnm_IncreaseDecreaseInOtherThanTemporaryLossesInvestmentsPortionRecognizedInEarningsNetAvailableForSaleSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">(Increase)/Decrease In Other Than Temporary Losses, Investments, Portion Recognized In Earnings, Net, Available-For-Sale Securities</link:label>
    <link:label id="lab_pnm_IncreaseDecreaseInOtherThanTemporaryLossesInvestmentsPortionRecognizedInEarningsNetAvailableForSaleSecurities_documentation_en-US" xlink:label="lab_pnm_IncreaseDecreaseInOtherThanTemporaryLossesInvestmentsPortionRecognizedInEarningsNetAvailableForSaleSecurities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">(Increase)/Decrease In Other Than Temporary Losses, Investments, Portion Recognized In Earnings, Net, Available-For-Sale Securities</link:label>
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    <link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_3e18f443-b974-4def-8951-5054ca969d54_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and cash equivalents</link:label>
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    <link:label id="lab_pnm_PaymentsForReliefFromObligations_0c686012-20b2-4f77-abe7-06ea6e307dbf_terseLabel_en-US" xlink:label="lab_pnm_PaymentsForReliefFromObligations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments for relief from obligations</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_pnm_PaymentsForReliefFromObligations" xlink:href="pnm-20230331.xsd#pnm_PaymentsForReliefFromObligations"/>
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    <link:label id="lab_us-gaap_Revenues_c0d40ccc-140f-4e46-9fe9-43e6b60e923a_terseLabel_en-US" xlink:label="lab_us-gaap_Revenues" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Electric Operating Revenues</link:label>
    <link:label id="lab_us-gaap_Revenues_0da83664-727c-4ebb-b970-5d8af4a5c4ff_verboseLabel_en-US" xlink:label="lab_us-gaap_Revenues" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Electric operating revenues</link:label>
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    <link:label id="lab_us-gaap_InvestmentIncomeNet_b17517cb-343c-4cda-95df-a521eab218fe_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentIncomeNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest income (expense)</link:label>
    <link:label id="lab_us-gaap_InvestmentIncomeNet_label_en-US" xlink:label="lab_us-gaap_InvestmentIncomeNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investment Income, Net</link:label>
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    <link:label id="lab_us-gaap_RegulatoryAssetsCurrent_17b13c5e-2c18-411f-afe4-3b21ccb040b3_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory assets</link:label>
    <link:label id="lab_us-gaap_RegulatoryAssetsCurrent_label_en-US" xlink:label="lab_us-gaap_RegulatoryAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Asset, Current</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RegulatoryAssetsCurrent" xlink:to="lab_us-gaap_RegulatoryAssetsCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LongTermContractOptionToPurchasePurchasePricePercentageOfFMV_882d304a-a183-4c00-b346-6a645a273d00_terseLabel_en-US" xlink:label="lab_pnm_LongTermContractOptionToPurchasePurchasePricePercentageOfFMV" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term contract option to purchase, purchase price - percentage of FMV</link:label>
    <link:label id="lab_pnm_LongTermContractOptionToPurchasePurchasePricePercentageOfFMV_label_en-US" xlink:label="lab_pnm_LongTermContractOptionToPurchasePurchasePricePercentageOfFMV" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long Term Contract Option To Purchase, Purchase Price - Percentage Of FMV</link:label>
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    <link:label id="lab_us-gaap_InterestPaidNet_5f28173f-e4fb-43df-b951-77116c8f66b9_terseLabel_en-US" xlink:label="lab_us-gaap_InterestPaidNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest paid, net of amounts capitalized</link:label>
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    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_6bce194c-b24c-4c2b-b11d-863df457f94e_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2026</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, Year Three</link:label>
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    <link:label id="lab_us-gaap_DefinedBenefitPlanDisclosureLineItems_1bc50a28-4bf8-4143-a961-a9339426a519_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanDisclosureLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Defined Benefit Plan Disclosure [Line Items]</link:label>
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    <link:label id="lab_pnm_PublicServiceCompanyOfNewMexicoMember_1d8cdc0e-6b28-45a4-abf6-dfd6a230509c_verboseLabel_en-US" xlink:label="lab_pnm_PublicServiceCompanyOfNewMexicoMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM</link:label>
    <link:label id="lab_pnm_PublicServiceCompanyOfNewMexicoMember_8e17f613-8489-426e-b47f-2639ef07567b_terseLabel_en-US" xlink:label="lab_pnm_PublicServiceCompanyOfNewMexicoMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Service Company of New Mexico</link:label>
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    <link:label id="lab_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_f9e76b67-31ad-4c5a-a256-1a25a4842fa6_terseLabel_en-US" xlink:label="lab_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Pension Liability Adjustment</link:label>
    <link:label id="lab_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember_label_en-US" xlink:label="lab_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember"/>
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    <link:label id="lab_pnm_PublicUtilitiesProfitIncentiveSlidingScaleMultiplier_3cd464e2-f4b4-45b6-a054-1e26501cb812_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesProfitIncentiveSlidingScaleMultiplier" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Profit incentive sliding scale multiplier</link:label>
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    <link:label id="lab_pnm_PublicUtilitiesProfitIncentiveSlidingScaleMultiplier_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesProfitIncentiveSlidingScaleMultiplier" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Profit Incentive Sliding Scale Multiplier</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesProfitIncentiveSlidingScaleMultiplier" xlink:to="lab_pnm_PublicUtilitiesProfitIncentiveSlidingScaleMultiplier" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis_f224de90-1f7f-42a1-8fb5-d1393a2212a8_terseLabel_en-US" xlink:label="lab_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchase Commitment, Excluding Long-term Commitment [Axis]</link:label>
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    <link:label id="lab_srt_RepurchaseAgreementCounterpartyNameDomain_959dbd3d-c1b7-4b66-a195-482dedf00b5e_terseLabel_en-US" xlink:label="lab_srt_RepurchaseAgreementCounterpartyNameDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Counterparty Name [Domain]</link:label>
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    <link:label id="lab_us-gaap_StockholdersEquity_baaceaaa-9e97-4014-a019-f828f2dd363b_totalLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total PNM common stockholder&#8217;s equity</link:label>
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    <link:label id="lab_us-gaap_StockholdersEquity_ba0f3067-72a2-4c92-9853-6e2b0f4c69c5_periodEndLabel_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/periodEndLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Ending balance TNMP</link:label>
    <link:label id="lab_us-gaap_StockholdersEquity_label_en-US" xlink:label="lab_us-gaap_StockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Stockholders' Equity Attributable to Parent</link:label>
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    <link:label id="lab_pnm_PNMToNMRDMember_def22e29-136f-4153-8dc5-15f2dea3b7dc_terseLabel_en-US" xlink:label="lab_pnm_PNMToNMRDMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM from NMRD</link:label>
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    <link:label id="lab_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability_e685b43e-afb4-4b1a-8fbb-8d592bfb2748_terseLabel_en-US" xlink:label="lab_us-gaap_RightOfUseAssetObtainedInExchangeForFinanceLeaseLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financing leases</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue_11100ab2-9c2f-4b1d-bc46-e3866bd315e6_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Forfeited (in dollars per share)</link:label>
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    <link:label id="lab_pnm_RetailElectricResidentialCustomersMember_05c3e17d-ed84-4dd9-8102-c1c4f95d07a2_terseLabel_en-US" xlink:label="lab_pnm_RetailElectricResidentialCustomersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Residential</link:label>
    <link:label id="lab_pnm_RetailElectricResidentialCustomersMember_label_en-US" xlink:label="lab_pnm_RetailElectricResidentialCustomersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retail Electric, Residential Customers [Member]</link:label>
    <link:label id="lab_pnm_RetailElectricResidentialCustomersMember_documentation_en-US" xlink:label="lab_pnm_RetailElectricResidentialCustomersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retail Electric, Residential Customers</link:label>
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    <link:label id="lab_pnm_DefinedBenefitPlanEstimatedFutureEmployerContributionsRemainderOfFiscalYearThroughYearFour_553e97cd-a5dd-47c8-b02e-3954260a6c1b_terseLabel_en-US" xlink:label="lab_pnm_DefinedBenefitPlanEstimatedFutureEmployerContributionsRemainderOfFiscalYearThroughYearFour" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Estimated employer contributions for remainder of fiscal year through year four</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_pnm_DefinedBenefitPlanEstimatedFutureEmployerContributionsRemainderOfFiscalYearThroughYearFour" xlink:href="pnm-20230331.xsd#pnm_DefinedBenefitPlanEstimatedFutureEmployerContributionsRemainderOfFiscalYearThroughYearFour"/>
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    <link:label id="lab_pnm_TNMP2023BondPurchaseAgreementAtFivePointZeroOnePercentDueApril282033Member_66c685d8-09f3-4393-881e-0a3eed1058fc_terseLabel_en-US" xlink:label="lab_pnm_TNMP2023BondPurchaseAgreementAtFivePointZeroOnePercentDueApril282033Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP 2023 Bond Purchase Agreement At 5.01%, Due April 28, 2033</link:label>
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    <link:label id="lab_pnm_VariableInterestEntityStatementOfFinancialPositionAbstract_2ba78d77-928c-4354-9439-a2d62ad640b2_terseLabel_en-US" xlink:label="lab_pnm_VariableInterestEntityStatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financial Position</link:label>
    <link:label id="lab_pnm_VariableInterestEntityStatementOfFinancialPositionAbstract_label_en-US" xlink:label="lab_pnm_VariableInterestEntityStatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Interest Entity, Statement Of Financial Position [Abstract]</link:label>
    <link:label id="lab_pnm_VariableInterestEntityStatementOfFinancialPositionAbstract_documentation_en-US" xlink:label="lab_pnm_VariableInterestEntityStatementOfFinancialPositionAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Interest Entity, Statement Of Financial Position</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_VariableInterestEntityStatementOfFinancialPositionAbstract" xlink:href="pnm-20230331.xsd#pnm_VariableInterestEntityStatementOfFinancialPositionAbstract"/>
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    <link:label id="lab_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_9ca53c4d-18bd-4eba-98d6-90b1dda166fc_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from sales</link:label>
    <link:label id="lab_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt_label_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Proceeds from Sale of Debt Securities, Available-for-Sale</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt" xlink:to="lab_us-gaap_ProceedsFromSaleOfAvailableForSaleSecuritiesDebt" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RetainedEarningsMember_72bb0c64-bffe-431b-a184-48c16953bb92_terseLabel_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retained Earnings</link:label>
    <link:label id="lab_us-gaap_RetainedEarningsMember_label_en-US" xlink:label="lab_us-gaap_RetainedEarningsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retained Earnings [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RetainedEarningsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetainedEarningsMember" xlink:to="lab_us-gaap_RetainedEarningsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SegmentReportingInformationLineItems_d15edea3-4584-4d8b-96bb-df9a2f923b11_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segment Reporting Information [Line Items]</link:label>
    <link:label id="lab_us-gaap_SegmentReportingInformationLineItems_label_en-US" xlink:label="lab_us-gaap_SegmentReportingInformationLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segment Reporting Information [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SegmentReportingInformationLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SegmentReportingInformationLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SegmentReportingInformationLineItems" xlink:to="lab_us-gaap_SegmentReportingInformationLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DividendsCommonStockCash_fb465b18-56f5-41de-b81b-0afdce881c46_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DividendsCommonStockCash" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Dividends declared on common stock</link:label>
    <link:label id="lab_us-gaap_DividendsCommonStockCash_label_en-US" xlink:label="lab_us-gaap_DividendsCommonStockCash" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Dividends, Common Stock, Cash</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsCommonStockCash" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DividendsCommonStockCash"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendsCommonStockCash" xlink:to="lab_us-gaap_DividendsCommonStockCash" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LeaseCost_81c621e7-5e2c-458a-8950-182b84ba329b_totalLabel_en-US" xlink:label="lab_us-gaap_LeaseCost" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total lease expense for the period</link:label>
    <link:label id="lab_us-gaap_LeaseCost_label_en-US" xlink:label="lab_us-gaap_LeaseCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease, Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCost" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LeaseCost" xlink:to="lab_us-gaap_LeaseCost" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesUpfrontFinancingCosts_6133c1ba-f4b1-4a67-b6f5-c24731fb139d_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesUpfrontFinancingCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Upfront financing costs</link:label>
    <link:label id="lab_pnm_PublicUtilitiesUpfrontFinancingCosts_label_en-US" xlink:label="lab_pnm_PublicUtilitiesUpfrontFinancingCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Upfront Financing Costs</link:label>
    <link:label id="lab_pnm_PublicUtilitiesUpfrontFinancingCosts_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesUpfrontFinancingCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Upfront Financing Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesUpfrontFinancingCosts" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesUpfrontFinancingCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesUpfrontFinancingCosts" xlink:to="lab_pnm_PublicUtilitiesUpfrontFinancingCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockMember_0178b762-669e-47b2-989a-6402feee4e30_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock</link:label>
    <link:label id="lab_us-gaap_CommonStockMember_71de794d-9921-4092-bc78-14175a462eb8_verboseLabel_en-US" xlink:label="lab_us-gaap_CommonStockMember" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Corporate stocks, common</link:label>
    <link:label id="lab_us-gaap_CommonStockMember_label_en-US" xlink:label="lab_us-gaap_CommonStockMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockMember" xlink:to="lab_us-gaap_CommonStockMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LeaseCostTableTextBlock_ca8d43e4-bcc9-4068-b707-2d4fd9632dad_terseLabel_en-US" xlink:label="lab_us-gaap_LeaseCostTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease, Cost</link:label>
    <link:label id="lab_us-gaap_LeaseCostTableTextBlock_label_en-US" xlink:label="lab_us-gaap_LeaseCostTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease, Cost [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LeaseCostTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LeaseCostTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LeaseCostTableTextBlock" xlink:to="lab_us-gaap_LeaseCostTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementTable_5ec70d8d-fb21-4fa5-8dd7-4382d42c9e79_terseLabel_en-US" xlink:label="lab_us-gaap_StatementTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement [Table]</link:label>
    <link:label id="lab_us-gaap_StatementTable_label_en-US" xlink:label="lab_us-gaap_StatementTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementTable" xlink:to="lab_us-gaap_StatementTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentDomain_bbfb0178-86e6-45c7-bde0-7ae5802375ab_terseLabel_en-US" xlink:label="lab_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchase Commitment, Excluding Long-term Commitment [Domain]</link:label>
    <link:label id="lab_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentDomain_label_en-US" xlink:label="lab_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchase Commitment, Excluding Long-Term Commitment [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PurchaseCommitmentExcludingLongtermCommitmentDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentDomain" xlink:to="lab_us-gaap_PurchaseCommitmentExcludingLongtermCommitmentDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateEffectivePercentage_a91854c0-f1de-481f-a6b3-998754e1dfff_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable interest rate</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentInterestRateEffectivePercentage_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Interest Rate, Effective Percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:to="lab_us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_75881dee-e393-4ced-9148-1f5714f38b21_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Exercised (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PNMRRevolvingCreditFacilityMember_6ae6dc7b-2673-45bc-b933-b527ec7eaab2_terseLabel_en-US" xlink:label="lab_pnm_PNMRRevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR Revolving Credit Facility</link:label>
    <link:label id="lab_pnm_PNMRRevolvingCreditFacilityMember_label_en-US" xlink:label="lab_pnm_PNMRRevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR Revolving Credit Facility [Member]</link:label>
    <link:label id="lab_pnm_PNMRRevolvingCreditFacilityMember_documentation_en-US" xlink:label="lab_pnm_PNMRRevolvingCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR Revolving Credit Facility [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PNMRRevolvingCreditFacilityMember" xlink:href="pnm-20230331.xsd#pnm_PNMRRevolvingCreditFacilityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PNMRRevolvingCreditFacilityMember" xlink:to="lab_pnm_PNMRRevolvingCreditFacilityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesHearingRequestSuspensionPeriod_96306cce-4883-42a6-833e-bb5bd8978b76_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesHearingRequestSuspensionPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Request suspension period</link:label>
    <link:label id="lab_pnm_PublicUtilitiesHearingRequestSuspensionPeriod_label_en-US" xlink:label="lab_pnm_PublicUtilitiesHearingRequestSuspensionPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Hearing, Request Suspension Period</link:label>
    <link:label id="lab_pnm_PublicUtilitiesHearingRequestSuspensionPeriod_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesHearingRequestSuspensionPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Hearing, Request Suspension Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesHearingRequestSuspensionPeriod" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesHearingRequestSuspensionPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesHearingRequestSuspensionPeriod" xlink:to="lab_pnm_PublicUtilitiesHearingRequestSuspensionPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements_21fac64d-901f-47c4-a6c5-0e19abcc9be7_terseLabel_en-US" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR 2020 Forward Equity Sale Agreements (in shares)</link:label>
    <link:label id="lab_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements_label_en-US" xlink:label="lab_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Incremental Common Shares Attributable to Dilutive Effect of Equity Forward Agreements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements" xlink:to="lab_us-gaap_IncrementalCommonSharesAttributableToEquityForwardAgreements" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_6e697275-c683-45b0-b10b-d8aa8c7937f9_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating lease liabilities</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_464707f8-96e8-4dfa-a040-232fdfdb5750_verboseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term portion of operating lease liabilities</link:label>
    <link:label id="lab_us-gaap_OperatingLeaseLiabilityNoncurrent_label_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Lease, Liability, Noncurrent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingLeaseLiabilityNoncurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:to="lab_us-gaap_OperatingLeaseLiabilityNoncurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ReplacementResourcePortfolioOneMember_4b0d66c5-cadd-495f-a7d0-41d3970c3e4d_terseLabel_en-US" xlink:label="lab_pnm_ReplacementResourcePortfolioOneMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Replacement Resource Portfolio One</link:label>
    <link:label id="lab_pnm_ReplacementResourcePortfolioOneMember_label_en-US" xlink:label="lab_pnm_ReplacementResourcePortfolioOneMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Replacement Resource Portfolio One [Member]</link:label>
    <link:label id="lab_pnm_ReplacementResourcePortfolioOneMember_documentation_en-US" xlink:label="lab_pnm_ReplacementResourcePortfolioOneMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Replacement Resource Portfolio One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ReplacementResourcePortfolioOneMember" xlink:href="pnm-20230331.xsd#pnm_ReplacementResourcePortfolioOneMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ReplacementResourcePortfolioOneMember" xlink:to="lab_pnm_ReplacementResourcePortfolioOneMember" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_RangeAxis_9d711759-e86d-4607-bf51-63568556f59b_terseLabel_en-US" xlink:label="lab_srt_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statistical Measurement [Axis]</link:label>
    <link:label id="lab_srt_RangeAxis_label_en-US" xlink:label="lab_srt_RangeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statistical Measurement [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_RangeAxis" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_RangeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_RangeAxis" xlink:to="lab_srt_RangeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_VariableRateDebtMember_92d2eb46-680c-463c-b5cb-0d2b197cbb46_terseLabel_en-US" xlink:label="lab_pnm_VariableRateDebtMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt</link:label>
    <link:label id="lab_pnm_VariableRateDebtMember_label_en-US" xlink:label="lab_pnm_VariableRateDebtMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt [Member]</link:label>
    <link:label id="lab_pnm_VariableRateDebtMember_documentation_en-US" xlink:label="lab_pnm_VariableRateDebtMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_VariableRateDebtMember" xlink:href="pnm-20230331.xsd#pnm_VariableRateDebtMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_VariableRateDebtMember" xlink:to="lab_pnm_VariableRateDebtMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesMaturityTermOverWhichFinancingsRequireRegulatorApproval_8d701a8a-c461-4629-b500-fa755e8d941c_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesMaturityTermOverWhichFinancingsRequireRegulatorApproval" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maturity term over which financings require regulator approval (more than)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesMaturityTermOverWhichFinancingsRequireRegulatorApproval_label_en-US" xlink:label="lab_pnm_PublicUtilitiesMaturityTermOverWhichFinancingsRequireRegulatorApproval" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Maturity Term Over Which Financings Require Regulator Approval</link:label>
    <link:label id="lab_pnm_PublicUtilitiesMaturityTermOverWhichFinancingsRequireRegulatorApproval_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesMaturityTermOverWhichFinancingsRequireRegulatorApproval" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Maturity Term Over Which Financings Require Regulator Approval</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesMaturityTermOverWhichFinancingsRequireRegulatorApproval" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesMaturityTermOverWhichFinancingsRequireRegulatorApproval"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesMaturityTermOverWhichFinancingsRequireRegulatorApproval" xlink:to="lab_pnm_PublicUtilitiesMaturityTermOverWhichFinancingsRequireRegulatorApproval" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TransmissionInterconnectionArrangementLiabilities_11123766-74f1-4548-92ed-13b7d6e017ce_terseLabel_en-US" xlink:label="lab_pnm_TransmissionInterconnectionArrangementLiabilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Transmission interconnection arrangement liabilities</link:label>
    <link:label id="lab_pnm_TransmissionInterconnectionArrangementLiabilities_label_en-US" xlink:label="lab_pnm_TransmissionInterconnectionArrangementLiabilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Transmission Interconnection Arrangement Liabilities</link:label>
    <link:label id="lab_pnm_TransmissionInterconnectionArrangementLiabilities_documentation_en-US" xlink:label="lab_pnm_TransmissionInterconnectionArrangementLiabilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Transmission Interconnection Arrangement Liabilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TransmissionInterconnectionArrangementLiabilities" xlink:href="pnm-20230331.xsd#pnm_TransmissionInterconnectionArrangementLiabilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_TransmissionInterconnectionArrangementLiabilities" xlink:to="lab_pnm_TransmissionInterconnectionArrangementLiabilities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_e487e3fb-856e-4d1d-a30a-afe2a8e0308d_verboseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts receivable, net of allowance for credit losses of $4,884 and $4,925</link:label>
    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_f01000dc-958e-4d91-a8ab-4e6f664dfc25_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts receivable, net of allowance for credit losses of $4,884 and $4,925</link:label>
    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_e964c30e-2e2b-4eb1-97d1-5fd99be23db7_netLabel_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent" xlink:role="http://www.xbrl.org/2009/role/netLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts receivable</link:label>
    <link:label id="lab_us-gaap_AccountsReceivableNetCurrent_label_en-US" xlink:label="lab_us-gaap_AccountsReceivableNetCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts Receivable, after Allowance for Credit Loss, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsReceivableNetCurrent" xlink:to="lab_us-gaap_AccountsReceivableNetCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NonEmployeeMembersOfTheBoardOfDirectorsMember_6c8bf617-b2de-442b-a669-c2759a41fba0_terseLabel_en-US" xlink:label="lab_pnm_NonEmployeeMembersOfTheBoardOfDirectorsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-employee Members of the Board of Directors</link:label>
    <link:label id="lab_pnm_NonEmployeeMembersOfTheBoardOfDirectorsMember_label_en-US" xlink:label="lab_pnm_NonEmployeeMembersOfTheBoardOfDirectorsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-employee Members of the Board of Directors [Member]</link:label>
    <link:label id="lab_pnm_NonEmployeeMembersOfTheBoardOfDirectorsMember_documentation_en-US" xlink:label="lab_pnm_NonEmployeeMembersOfTheBoardOfDirectorsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-employee Members of the Board of Directors</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NonEmployeeMembersOfTheBoardOfDirectorsMember" xlink:href="pnm-20230331.xsd#pnm_NonEmployeeMembersOfTheBoardOfDirectorsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NonEmployeeMembersOfTheBoardOfDirectorsMember" xlink:to="lab_pnm_NonEmployeeMembersOfTheBoardOfDirectorsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PaymentsToAcquireMarketableSecurities_a0aa0a2b-9aae-4ce3-9351-d3e699838bad_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireMarketableSecurities" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchases of investment securities</link:label>
    <link:label id="lab_us-gaap_PaymentsToAcquireMarketableSecurities_label_en-US" xlink:label="lab_us-gaap_PaymentsToAcquireMarketableSecurities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payments to Acquire Marketable Securities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireMarketableSecurities" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PaymentsToAcquireMarketableSecurities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsToAcquireMarketableSecurities" xlink:to="lab_us-gaap_PaymentsToAcquireMarketableSecurities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_USTreasuryAndGovernmentMember_df36d193-f959-4c8c-946c-bc1b21f529e4_terseLabel_en-US" xlink:label="lab_us-gaap_USTreasuryAndGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">U.S. government</link:label>
    <link:label id="lab_us-gaap_USTreasuryAndGovernmentMember_label_en-US" xlink:label="lab_us-gaap_USTreasuryAndGovernmentMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">US Treasury and Government [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_USTreasuryAndGovernmentMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_USTreasuryAndGovernmentMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_USTreasuryAndGovernmentMember" xlink:to="lab_us-gaap_USTreasuryAndGovernmentMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_37632f17-d4be-4a75-b7a9-5f0298105f24_terseLabel_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_e4305d8c-f4da-4aad-8622-f131587e97b5_verboseLabel_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:label id="lab_us-gaap_StatementEquityComponentsAxis_label_en-US" xlink:label="lab_us-gaap_StatementEquityComponentsAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity Components [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StatementEquityComponentsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_StatementEquityComponentsAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_StatementEquityComponentsAxis" xlink:to="lab_us-gaap_StatementEquityComponentsAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_2a6c7bc9-d920-4f68-99fc-1f9aeb6fc23f_terseLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Depreciation and amortization</link:label>
    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization_label_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Utilities Operating Expense, Depreciation and Amortization</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:to="lab_us-gaap_UtilitiesOperatingExpenseDepreciationAndAmortization" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CashFlowLesseeTable_25d1da07-9b4a-49e3-a769-f2a8e861b432_terseLabel_en-US" xlink:label="lab_pnm_CashFlowLesseeTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash Flow, Lessee [Table]</link:label>
    <link:label id="lab_pnm_CashFlowLesseeTable_label_en-US" xlink:label="lab_pnm_CashFlowLesseeTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash Flow, Lessee [Table]</link:label>
    <link:label id="lab_pnm_CashFlowLesseeTable_documentation_en-US" xlink:label="lab_pnm_CashFlowLesseeTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash Flow, Lessee [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CashFlowLesseeTable" xlink:href="pnm-20230331.xsd#pnm_CashFlowLesseeTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CashFlowLesseeTable" xlink:to="lab_pnm_CashFlowLesseeTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TotalDeferredChargesAndOtherAssets_1dc7df00-8e91-473a-9802-9905ecbb8f36_totalLabel_en-US" xlink:label="lab_pnm_TotalDeferredChargesAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total deferred charges and other assets</link:label>
    <link:label id="lab_pnm_TotalDeferredChargesAndOtherAssets_label_en-US" xlink:label="lab_pnm_TotalDeferredChargesAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total Deferred Charges And Other Assets</link:label>
    <link:label id="lab_pnm_TotalDeferredChargesAndOtherAssets_documentation_en-US" xlink:label="lab_pnm_TotalDeferredChargesAndOtherAssets" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total Deferred Charges And Other Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TotalDeferredChargesAndOtherAssets" xlink:href="pnm-20230331.xsd#pnm_TotalDeferredChargesAndOtherAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_TotalDeferredChargesAndOtherAssets" xlink:to="lab_pnm_TotalDeferredChargesAndOtherAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfAllotmentParcelsAtIssue_7ead23ab-cbe6-40e5-b1e0-e13fe0ede5a8_terseLabel_en-US" xlink:label="lab_pnm_NumberOfAllotmentParcelsAtIssue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of allotment parcels at issue</link:label>
    <link:label id="lab_pnm_NumberOfAllotmentParcelsAtIssue_label_en-US" xlink:label="lab_pnm_NumberOfAllotmentParcelsAtIssue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Allotment Parcels' At Issue</link:label>
    <link:label id="lab_pnm_NumberOfAllotmentParcelsAtIssue_documentation_en-US" xlink:label="lab_pnm_NumberOfAllotmentParcelsAtIssue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of allotment parcels' at issue</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfAllotmentParcelsAtIssue" xlink:href="pnm-20230331.xsd#pnm_NumberOfAllotmentParcelsAtIssue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfAllotmentParcelsAtIssue" xlink:to="lab_pnm_NumberOfAllotmentParcelsAtIssue" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ElectricityMember_37aa332b-b2da-4217-a3d9-ab2fddd18948_terseLabel_en-US" xlink:label="lab_us-gaap_ElectricityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy</link:label>
    <link:label id="lab_us-gaap_ElectricityMember_label_en-US" xlink:label="lab_us-gaap_ElectricityMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Electricity [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ElectricityMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ElectricityMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ElectricityMember" xlink:to="lab_us-gaap_ElectricityMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RegulatoryAgencyDomain_0067fccb-205f-4b36-b27b-ad248223c78d_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryAgencyDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Agency [Domain]</link:label>
    <link:label id="lab_us-gaap_RegulatoryAgencyDomain_label_en-US" xlink:label="lab_us-gaap_RegulatoryAgencyDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Agency [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAgencyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RegulatoryAgencyDomain"/>
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    <link:label id="lab_pnm_A2021EnergyEfficiencyAnnualReportMember_558ae62c-f0a2-49b5-8540-c400a33c151a_terseLabel_en-US" xlink:label="lab_pnm_A2021EnergyEfficiencyAnnualReportMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2021 Energy Efficiency Annual Report</link:label>
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    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber_28194540-2bcd-4ac7-8184-49d0e4677811_periodStartLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber" xlink:role="http://www.xbrl.org/2003/role/periodStartLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Outstanding at beginning of period (in shares)</link:label>
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    <link:label id="lab_pnm_PNM2017NewMexicoCreditFacilityMember_2b093200-4ba6-476e-ba10-b25750ce1007_terseLabel_en-US" xlink:label="lab_pnm_PNM2017NewMexicoCreditFacilityMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM New Mexico Credit Facility</link:label>
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    <link:label id="lab_us-gaap_GoodwillDisclosureTextBlock_14298a13-90b8-4c21-b0de-11510a9321db_terseLabel_en-US" xlink:label="lab_us-gaap_GoodwillDisclosureTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Goodwill</link:label>
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    <link:label id="lab_pnm_DebtInstrumentNumberOfExtensions_fb86b5b0-5151-44a9-a220-9d9732dab781_terseLabel_en-US" xlink:label="lab_pnm_DebtInstrumentNumberOfExtensions" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of extensions</link:label>
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    <link:label id="lab_us-gaap_StockRepurchasedDuringPeriodValue_0405d943-7278-49c6-8739-d3e8374c7624_negatedLabel_en-US" xlink:label="lab_us-gaap_StockRepurchasedDuringPeriodValue" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Awards of common stock</link:label>
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    <link:label id="lab_pnm_LeasedInterestTerminationOnJanuary152024Member_905ff82a-c0d4-4ea8-838d-2e74c29e4efb_terseLabel_en-US" xlink:label="lab_pnm_LeasedInterestTerminationOnJanuary152024Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Leased Interest Termination on January 15, 2024</link:label>
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    <link:label id="lab_dei_DocumentTransitionReport_fafc5a35-8b53-40a0-a5f8-31de807608ae_terseLabel_en-US" xlink:label="lab_dei_DocumentTransitionReport" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Transition Report</link:label>
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    <link:label id="lab_dei_LocalPhoneNumber_732a4ec0-40dd-470b-ad48-42f611977531_terseLabel_en-US" xlink:label="lab_dei_LocalPhoneNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Local Phone Number</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_dei_LocalPhoneNumber" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_LocalPhoneNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_LocalPhoneNumber" xlink:to="lab_dei_LocalPhoneNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_JointlyOwnedGeneratingFacilitiesDomain_0e190a4e-a65b-4ee7-bef9-8c60053138c5_terseLabel_en-US" xlink:label="lab_pnm_JointlyOwnedGeneratingFacilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Jointly-Owned Generating Facilities [Domain]</link:label>
    <link:label id="lab_pnm_JointlyOwnedGeneratingFacilitiesDomain_label_en-US" xlink:label="lab_pnm_JointlyOwnedGeneratingFacilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Jointly-Owned Generating Facilities [Domain]</link:label>
    <link:label id="lab_pnm_JointlyOwnedGeneratingFacilitiesDomain_documentation_en-US" xlink:label="lab_pnm_JointlyOwnedGeneratingFacilitiesDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Jointly-Owned Generating Facilities [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_JointlyOwnedGeneratingFacilitiesDomain" xlink:href="pnm-20230331.xsd#pnm_JointlyOwnedGeneratingFacilitiesDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_JointlyOwnedGeneratingFacilitiesDomain" xlink:to="lab_pnm_JointlyOwnedGeneratingFacilitiesDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OperatingIncomeLoss_5a76705e-c702-454b-ad7e-280ef712f152_totalLabel_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating income</link:label>
    <link:label id="lab_us-gaap_OperatingIncomeLoss_label_en-US" xlink:label="lab_us-gaap_OperatingIncomeLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating Income (Loss)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OperatingIncomeLoss" xlink:to="lab_us-gaap_OperatingIncomeLoss" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_385811bc-9ee9-48ec-bdbf-ccd9fc9dfa11_terseLabel_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">New Accounting Pronouncements</link:label>
    <link:label id="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock_label_en-US" xlink:label="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">New Accounting Pronouncements, Policy [Policy Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:to="lab_us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesAnnualPaymentLimitationRelatedToIncident_59c9eba6-c67c-4822-bc5e-e3ad5ad49043_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualPaymentLimitationRelatedToIncident" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Annual payment limitation related to incident</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAnnualPaymentLimitationRelatedToIncident_label_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualPaymentLimitationRelatedToIncident" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Annual Payment Limitation Related to Incident</link:label>
    <link:label id="lab_pnm_PublicUtilitiesAnnualPaymentLimitationRelatedToIncident_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesAnnualPaymentLimitationRelatedToIncident" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Annual Payment Limitation Related to Incident</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesAnnualPaymentLimitationRelatedToIncident" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesAnnualPaymentLimitationRelatedToIncident"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesAnnualPaymentLimitationRelatedToIncident" xlink:to="lab_pnm_PublicUtilitiesAnnualPaymentLimitationRelatedToIncident" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfReplacementResources_935334f4-1ce2-452e-b720-fc8355ba96b4_terseLabel_en-US" xlink:label="lab_pnm_NumberOfReplacementResources" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of replacement resources</link:label>
    <link:label id="lab_pnm_NumberOfReplacementResources_label_en-US" xlink:label="lab_pnm_NumberOfReplacementResources" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Replacement Resources</link:label>
    <link:label id="lab_pnm_NumberOfReplacementResources_documentation_en-US" xlink:label="lab_pnm_NumberOfReplacementResources" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Replacement Resources</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfReplacementResources" xlink:href="pnm-20230331.xsd#pnm_NumberOfReplacementResources"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfReplacementResources" xlink:to="lab_pnm_NumberOfReplacementResources" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction_fb63dbb6-eb81-4238-a224-72c138885d7c_negatedLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Allowance for equity funds used during construction</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Allowance for Equity Funds Used During Construction</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction" xlink:to="lab_us-gaap_IncreaseDecreaseInAllowanceForEquityFundsUsedDuringConstruction" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_DebtInstrumentNumberOfDebtIssuances_e7cb8aff-3711-4245-b81d-7ea9b67efc25_terseLabel_en-US" xlink:label="lab_pnm_DebtInstrumentNumberOfDebtIssuances" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of debt issuances</link:label>
    <link:label id="lab_pnm_DebtInstrumentNumberOfDebtIssuances_label_en-US" xlink:label="lab_pnm_DebtInstrumentNumberOfDebtIssuances" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Number Of Debt Issuances</link:label>
    <link:label id="lab_pnm_DebtInstrumentNumberOfDebtIssuances_documentation_en-US" xlink:label="lab_pnm_DebtInstrumentNumberOfDebtIssuances" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Number Of Debt Issuances</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_DebtInstrumentNumberOfDebtIssuances" xlink:href="pnm-20230331.xsd#pnm_DebtInstrumentNumberOfDebtIssuances"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_DebtInstrumentNumberOfDebtIssuances" xlink:to="lab_pnm_DebtInstrumentNumberOfDebtIssuances" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LeaseCostTable_8b0b4e1c-7182-4cb3-8eff-32031c5b5f78_terseLabel_en-US" xlink:label="lab_pnm_LeaseCostTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease, Cost [Table]</link:label>
    <link:label id="lab_pnm_LeaseCostTable_label_en-US" xlink:label="lab_pnm_LeaseCostTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease, Cost [Table]</link:label>
    <link:label id="lab_pnm_LeaseCostTable_documentation_en-US" xlink:label="lab_pnm_LeaseCostTable" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease, Cost [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LeaseCostTable" xlink:href="pnm-20230331.xsd#pnm_LeaseCostTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LeaseCostTable" xlink:to="lab_pnm_LeaseCostTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_df4dd799-21a0-46f3-89a2-208a5e36db8f_terseLabel_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adjustments to reconcile net earnings to net cash flows from operating activities:</link:label>
    <link:label id="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract_label_en-US" xlink:label="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:to="lab_us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivitiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfUnits_63a91c29-5af2-4ddc-80ab-ff27c28ca59a_terseLabel_en-US" xlink:label="lab_pnm_NumberOfUnits" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of units</link:label>
    <link:label id="lab_pnm_NumberOfUnits_label_en-US" xlink:label="lab_pnm_NumberOfUnits" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Units</link:label>
    <link:label id="lab_pnm_NumberOfUnits_documentation_en-US" xlink:label="lab_pnm_NumberOfUnits" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Units</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfUnits" xlink:href="pnm-20230331.xsd#pnm_NumberOfUnits"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfUnits" xlink:to="lab_pnm_NumberOfUnits" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PreferredStockParOrStatedValuePerShare_d0a7a2bb-7c24-4edb-83ae-9d24a6a98797_terseLabel_en-US" xlink:label="lab_us-gaap_PreferredStockParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative preferred stock, stated value (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_PreferredStockParOrStatedValuePerShare_label_en-US" xlink:label="lab_us-gaap_PreferredStockParOrStatedValuePerShare" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Preferred Stock, Par or Stated Value Per Share</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockParOrStatedValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PreferredStockParOrStatedValuePerShare" xlink:to="lab_us-gaap_PreferredStockParOrStatedValuePerShare" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_e3fd3b3d-cc18-4504-9997-55916d8e0d1a_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2027</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, Year Four</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncomeStatementAbstract_d7af2530-a108-4636-b71a-21d8ff1f50fe_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Results of Operations</link:label>
    <link:label id="lab_us-gaap_IncomeStatementAbstract_label_en-US" xlink:label="lab_us-gaap_IncomeStatementAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Statement [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeStatementAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncomeStatementAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementAbstract" xlink:to="lab_us-gaap_IncomeStatementAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_f3084084-caab-4725-8a97-45951bb06e9d_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Paid-in Capital</link:label>
    <link:label id="lab_us-gaap_AdditionalPaidInCapitalMember_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Additional Paid-in Capital [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AdditionalPaidInCapitalMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AdditionalPaidInCapitalMember" xlink:to="lab_us-gaap_AdditionalPaidInCapitalMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited_dbed0089-ef47-463b-b3e4-fc48e0c41292_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Maximum amount under nuclear electric insurance limited</link:label>
    <link:label id="lab_pnm_PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited_label_en-US" xlink:label="lab_pnm_PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Maximum Amount under Nuclear Electric Insurance Limited</link:label>
    <link:label id="lab_pnm_PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Maximum Amount under Nuclear Electric Insurance Limited</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited" xlink:to="lab_pnm_PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_a8eb6a26-8c3d-41a2-9297-d2c6dbfb40de_terseLabel_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:label id="lab_dei_DocumentFiscalPeriodFocus_label_en-US" xlink:label="lab_dei_DocumentFiscalPeriodFocus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Document Fiscal Period Focus</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_DocumentFiscalPeriodFocus" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_DocumentFiscalPeriodFocus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_DocumentFiscalPeriodFocus" xlink:to="lab_dei_DocumentFiscalPeriodFocus" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding_67a65d1d-0cb3-422f-b551-cc8c4a48261d_totalLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Average Shares &#8211; Diluted (in shares)</link:label>
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    <link:label id="lab_pnm_BatteryStorageAgreementMember_01bb2217-d284-40f8-afaa-9fa29aba4d27_terseLabel_en-US" xlink:label="lab_pnm_BatteryStorageAgreementMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Battery Storage Agreement</link:label>
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    <link:label id="lab_us-gaap_CommonStockSharesIssued_0c3ee026-b8ac-4ad3-acae-720b8bedeb9f_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockSharesIssued" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock, shares issued (in shares)</link:label>
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    <link:label id="lab_us-gaap_EquityMethodInvestments_ae7fe4fb-2026-4558-a848-c9fa2b2017e3_terseLabel_en-US" xlink:label="lab_us-gaap_EquityMethodInvestments" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Equity investment in NMRD</link:label>
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    <link:label id="lab_us-gaap_CashFlowHedgingMember_7b1c4e1f-d1bd-4102-9393-be4bd46ec9ab_terseLabel_en-US" xlink:label="lab_us-gaap_CashFlowHedgingMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash Flow Hedge</link:label>
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    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseTaxes_8b4b6c29-351b-40a9-9f09-214188435929_terseLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseTaxes" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Taxes other than income taxes</link:label>
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    <link:label id="lab_pnm_LocalLinesOfCreditMember_a6d030e7-75ac-4763-9841-3e8f5bf1dd0e_terseLabel_en-US" xlink:label="lab_pnm_LocalLinesOfCreditMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lines of credit</link:label>
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    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_a0715572-a24a-4da7-8323-24313ab733ed_totalLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net cash flows used in investing activities</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Cash Provided by (Used in) Investing Activities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:to="lab_us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_7a95dca9-eb50-4cac-b74a-d2e47b94cec3_terseLabel_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Aggregate principal amount</link:label>
    <link:label id="lab_us-gaap_DebtInstrumentFaceAmount_label_en-US" xlink:label="lab_us-gaap_DebtInstrumentFaceAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Face Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtInstrumentFaceAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtInstrumentFaceAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtInstrumentFaceAmount" xlink:to="lab_us-gaap_DebtInstrumentFaceAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LossContingencyNewClaimsFiledNumber_08f8a388-5f61-4109-84d0-2bba84b475b9_terseLabel_en-US" xlink:label="lab_us-gaap_LossContingencyNewClaimsFiledNumber" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">New claims filed</link:label>
    <link:label id="lab_us-gaap_LossContingencyNewClaimsFiledNumber_label_en-US" xlink:label="lab_us-gaap_LossContingencyNewClaimsFiledNumber" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingency, New Claims Filed, Number</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LossContingencyNewClaimsFiledNumber" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LossContingencyNewClaimsFiledNumber"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LossContingencyNewClaimsFiledNumber" xlink:to="lab_us-gaap_LossContingencyNewClaimsFiledNumber" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AccountsPayableRelatedPartiesCurrent_2d8af36d-23cb-4b73-8395-20232411228a_terseLabel_en-US" xlink:label="lab_us-gaap_AccountsPayableRelatedPartiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Affiliate payables</link:label>
    <link:label id="lab_us-gaap_AccountsPayableRelatedPartiesCurrent_label_en-US" xlink:label="lab_us-gaap_AccountsPayableRelatedPartiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Accounts Payable, Related Parties, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableRelatedPartiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AccountsPayableRelatedPartiesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AccountsPayableRelatedPartiesCurrent" xlink:to="lab_us-gaap_AccountsPayableRelatedPartiesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesIntegratedResourcePlanActionPlanPeriod_2fb0d0a9-243b-443b-bc89-981142d7c99b_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesIntegratedResourcePlanActionPlanPeriod" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Action plan, covered period</link:label>
    <link:label id="lab_pnm_PublicUtilitiesIntegratedResourcePlanActionPlanPeriod_label_en-US" xlink:label="lab_pnm_PublicUtilitiesIntegratedResourcePlanActionPlanPeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Integrated Resource Plan, Action Plan, Period</link:label>
    <link:label id="lab_pnm_PublicUtilitiesIntegratedResourcePlanActionPlanPeriod_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesIntegratedResourcePlanActionPlanPeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Integrated Resource Plan, Action Plan, Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesIntegratedResourcePlanActionPlanPeriod" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesIntegratedResourcePlanActionPlanPeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesIntegratedResourcePlanActionPlanPeriod" xlink:to="lab_pnm_PublicUtilitiesIntegratedResourcePlanActionPlanPeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CorporateAndOtherMember_46b41ae6-eaf5-46c5-8184-92984400f022_terseLabel_en-US" xlink:label="lab_us-gaap_CorporateAndOtherMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Corporate and Other</link:label>
    <link:label id="lab_us-gaap_CorporateAndOtherMember_label_en-US" xlink:label="lab_us-gaap_CorporateAndOtherMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Corporate and Other [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CorporateAndOtherMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CorporateAndOtherMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CorporateAndOtherMember" xlink:to="lab_us-gaap_CorporateAndOtherMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTax_20950866-e0ff-4f8c-9ca1-0dc7b5effb11_totalLabel_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTax" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Comprehensive Income (Loss) Attributable to PNM</link:label>
    <link:label id="lab_us-gaap_ComprehensiveIncomeNetOfTax_label_en-US" xlink:label="lab_us-gaap_ComprehensiveIncomeNetOfTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Comprehensive Income (Loss), Net of Tax, Attributable to Parent</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax" xlink:to="lab_us-gaap_ComprehensiveIncomeNetOfTax" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract_1f08ff81-9c6c-47ca-b506-2761062579ce_terseLabel_en-US" xlink:label="lab_pnm_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financing leases:</link:label>
    <link:label id="lab_pnm_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract_label_en-US" xlink:label="lab_pnm_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Assets And Liabilities, Lessee [Abstract]</link:label>
    <link:label id="lab_pnm_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract_documentation_en-US" xlink:label="lab_pnm_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Assets and Liabilities, Lessee [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract" xlink:href="pnm-20230331.xsd#pnm_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract" xlink:to="lab_pnm_FinanceLeaseAssetsAndLiabilitiesLesseeAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ScheduleOfCommodityContractVolumePositionsTableTextBlock_6969154f-b5bf-4ee9-b6da-ac23364a3219_terseLabel_en-US" xlink:label="lab_pnm_ScheduleOfCommodityContractVolumePositionsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Commodity Contract Volume Positions</link:label>
    <link:label id="lab_pnm_ScheduleOfCommodityContractVolumePositionsTableTextBlock_label_en-US" xlink:label="lab_pnm_ScheduleOfCommodityContractVolumePositionsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Commodity Contract Volume Positions [Table Text Block]</link:label>
    <link:label id="lab_pnm_ScheduleOfCommodityContractVolumePositionsTableTextBlock_documentation_en-US" xlink:label="lab_pnm_ScheduleOfCommodityContractVolumePositionsTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Commodity Contract Volume Positions</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ScheduleOfCommodityContractVolumePositionsTableTextBlock" xlink:href="pnm-20230331.xsd#pnm_ScheduleOfCommodityContractVolumePositionsTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ScheduleOfCommodityContractVolumePositionsTableTextBlock" xlink:to="lab_pnm_ScheduleOfCommodityContractVolumePositionsTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_0797afd6-110d-4219-88b8-026d3408124f_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Summary of Financial Information by Segment</link:label>
    <link:label id="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock_label_en-US" xlink:label="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Segment Reporting Information, by Segment [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:to="lab_us-gaap_ScheduleOfSegmentReportingInformationBySegmentTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityCurrentReportingStatus_eef47891-c82e-48a5-b030-6bd39c04d368_terseLabel_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:label id="lab_dei_EntityCurrentReportingStatus_label_en-US" xlink:label="lab_dei_EntityCurrentReportingStatus" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Current Reporting Status</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityCurrentReportingStatus" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityCurrentReportingStatus"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityCurrentReportingStatus" xlink:to="lab_dei_EntityCurrentReportingStatus" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherLiabilitiesCurrent_7a9da707-887c-4c7e-b96d-214bd7a1132f_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other current liabilities</link:label>
    <link:label id="lab_us-gaap_OtherLiabilitiesCurrent_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Liabilities, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilitiesCurrent" xlink:to="lab_us-gaap_OtherLiabilitiesCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PUCTMember_a85b8eb0-5f54-413c-99f7-fee364336bbc_terseLabel_en-US" xlink:label="lab_pnm_PUCTMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PUCT</link:label>
    <link:label id="lab_pnm_PUCTMember_label_en-US" xlink:label="lab_pnm_PUCTMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PUCT [Member]</link:label>
    <link:label id="lab_pnm_PUCTMember_documentation_en-US" xlink:label="lab_pnm_PUCTMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PUCT [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PUCTMember" xlink:href="pnm-20230331.xsd#pnm_PUCTMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PUCTMember" xlink:to="lab_pnm_PUCTMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NM2022RateCaseMember_fbeb8834-78ea-4175-9ffc-11aaa354d088_terseLabel_en-US" xlink:label="lab_pnm_NM2022RateCaseMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">NM 2022 Rate Case</link:label>
    <link:label id="lab_pnm_NM2022RateCaseMember_label_en-US" xlink:label="lab_pnm_NM2022RateCaseMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">NM 2022 Rate Case [Member]</link:label>
    <link:label id="lab_pnm_NM2022RateCaseMember_documentation_en-US" xlink:label="lab_pnm_NM2022RateCaseMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">NM 2022 Rate Case</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NM2022RateCaseMember" xlink:href="pnm-20230331.xsd#pnm_NM2022RateCaseMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NM2022RateCaseMember" xlink:to="lab_pnm_NM2022RateCaseMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_DebtInstrumentSeriesOfBondIssuance_721615f3-6e92-4f98-ab17-3474a5e2b249_terseLabel_en-US" xlink:label="lab_pnm_DebtInstrumentSeriesOfBondIssuance" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt instrument, series of bond issuance</link:label>
    <link:label id="lab_pnm_DebtInstrumentSeriesOfBondIssuance_label_en-US" xlink:label="lab_pnm_DebtInstrumentSeriesOfBondIssuance" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Series Of Bond Issuance</link:label>
    <link:label id="lab_pnm_DebtInstrumentSeriesOfBondIssuance_documentation_en-US" xlink:label="lab_pnm_DebtInstrumentSeriesOfBondIssuance" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Instrument, Series Of Bond Issuance</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_DebtInstrumentSeriesOfBondIssuance" xlink:href="pnm-20230331.xsd#pnm_DebtInstrumentSeriesOfBondIssuance"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_DebtInstrumentSeriesOfBondIssuance" xlink:to="lab_pnm_DebtInstrumentSeriesOfBondIssuance" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_ecd6a60a-cb0a-43f8-ba7f-b6061a35af91_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2024</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability, to be Paid, Year One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:to="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAbstract_4334570b-03c3-4d6d-91c4-a8153c447cd3_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Utility Plant:</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAbstract_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Property, Plant and Equipment [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAbstract" xlink:to="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueTable_99106294-4091-4bc3-ac9a-37f415bb0221_terseLabel_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue [Table]</link:label>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueTable_label_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisaggregationOfRevenueTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable" xlink:to="lab_us-gaap_DisaggregationOfRevenueTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilities_0f74af49-a3a3-456c-9e95-bd26436753dd_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilities" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of megawatts in battery storage facilities (in megawatts)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilities_label_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilities" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Number Of Megawatts In Battery Storage Facilities</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilities_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilities" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Number Of Megawatts In Battery Storage Facilities</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilities" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilities"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilities" xlink:to="lab_pnm_PublicUtilitiesNumberOfMegawattsInBatteryStorageFacilities" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ServiceBillingsMember_cfc3fb31-60d0-4e33-8861-76b88037742d_terseLabel_en-US" xlink:label="lab_pnm_ServiceBillingsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Services billings:</link:label>
    <link:label id="lab_pnm_ServiceBillingsMember_label_en-US" xlink:label="lab_pnm_ServiceBillingsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Service Billings [Member]</link:label>
    <link:label id="lab_pnm_ServiceBillingsMember_documentation_en-US" xlink:label="lab_pnm_ServiceBillingsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Service Billings [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_ServiceBillingsMember" xlink:href="pnm-20230331.xsd#pnm_ServiceBillingsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ServiceBillingsMember" xlink:to="lab_pnm_ServiceBillingsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding_1c3103ca-7968-4471-ab45-4ecb2a3b15e2_terseLabel_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative preferred stock of subsidiary, shares outstanding (in shares)</link:label>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding_label_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Outstanding</link:label>
    <link:label id="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding_documentation_en-US" xlink:label="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cumulative Preferred Stock Of Subsidiary Without Mandatory Redemption Requirements Shares Outstanding</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding" xlink:href="pnm-20230331.xsd#pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding" xlink:to="lab_pnm_CumulativePreferredStockOfSubsidiaryWithoutMandatoryRedemptionRequirementsSharesOutstanding" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_bb096a9f-7a47-46f1-aff1-db8a9d0a368c_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2025</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Liability, to be Paid, Year Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo" xlink:to="lab_us-gaap_FinanceLeaseLiabilityPaymentsDueYearTwo" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_SurfaceMember_ff74eccb-95de-438e-9741-fb126c0649d0_terseLabel_en-US" xlink:label="lab_pnm_SurfaceMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Surface</link:label>
    <link:label id="lab_pnm_SurfaceMember_label_en-US" xlink:label="lab_pnm_SurfaceMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Surface [Member]</link:label>
    <link:label id="lab_pnm_SurfaceMember_documentation_en-US" xlink:label="lab_pnm_SurfaceMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Surface [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_SurfaceMember" xlink:href="pnm-20230331.xsd#pnm_SurfaceMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_SurfaceMember" xlink:to="lab_pnm_SurfaceMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_e4ffbc39-6a4a-4509-9ad7-067f6a4e3743_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net property, plant, and equipment</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Property, Plant and Equipment, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PNMR2021DelayedDrawTermLoanMember_a0dd6384-7587-4aa2-91e6-4932d69e7778_terseLabel_en-US" xlink:label="lab_pnm_PNMR2021DelayedDrawTermLoanMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR 2021 Delayed-Draw Term Loan</link:label>
    <link:label id="lab_pnm_PNMR2021DelayedDrawTermLoanMember_label_en-US" xlink:label="lab_pnm_PNMR2021DelayedDrawTermLoanMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR 2021 Delayed-Draw Term Loan [Member]</link:label>
    <link:label id="lab_pnm_PNMR2021DelayedDrawTermLoanMember_documentation_en-US" xlink:label="lab_pnm_PNMR2021DelayedDrawTermLoanMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR 2021 Delayed-Draw Term Loan</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PNMR2021DelayedDrawTermLoanMember" xlink:href="pnm-20230331.xsd#pnm_PNMR2021DelayedDrawTermLoanMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PNMR2021DelayedDrawTermLoanMember" xlink:to="lab_pnm_PNMR2021DelayedDrawTermLoanMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_TNMP2023BondPurchaseAgreementAtFivePointFortySevenPercentDueJuly282053Member_a943bc76-0e99-4580-8a6b-63b93b1b55b2_terseLabel_en-US" xlink:label="lab_pnm_TNMP2023BondPurchaseAgreementAtFivePointFortySevenPercentDueJuly282053Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP 2023 Bond Purchase Agreement At 5.47%, Due July 28, 2053</link:label>
    <link:label id="lab_pnm_TNMP2023BondPurchaseAgreementAtFivePointFortySevenPercentDueJuly282053Member_label_en-US" xlink:label="lab_pnm_TNMP2023BondPurchaseAgreementAtFivePointFortySevenPercentDueJuly282053Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP 2023 Bond Purchase Agreement At Five Point Forty Seven Percent, Due July 28, 2053 [Member]</link:label>
    <link:label id="lab_pnm_TNMP2023BondPurchaseAgreementAtFivePointFortySevenPercentDueJuly282053Member_documentation_en-US" xlink:label="lab_pnm_TNMP2023BondPurchaseAgreementAtFivePointFortySevenPercentDueJuly282053Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">TNMP 2023 Bond Purchase Agreement At Five Point Forty Seven Percent, Due July 28, 2053</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_TNMP2023BondPurchaseAgreementAtFivePointFortySevenPercentDueJuly282053Member" xlink:href="pnm-20230331.xsd#pnm_TNMP2023BondPurchaseAgreementAtFivePointFortySevenPercentDueJuly282053Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_TNMP2023BondPurchaseAgreementAtFivePointFortySevenPercentDueJuly282053Member" xlink:to="lab_pnm_TNMP2023BondPurchaseAgreementAtFivePointFortySevenPercentDueJuly282053Member" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntitiesTable_b6231c7c-fd96-4603-b6bc-1adaf338499e_terseLabel_en-US" xlink:label="lab_dei_EntitiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entities [Table]</link:label>
    <link:label id="lab_dei_EntitiesTable_label_en-US" xlink:label="lab_dei_EntitiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entities [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntitiesTable" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntitiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntitiesTable" xlink:to="lab_dei_EntitiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_1d1c49d7-ac88-450e-8f6e-04025f8ec057_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other assets</link:label>
    <link:label id="lab_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_label_en-US" xlink:label="lab_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Increase (Decrease) in Other Noncurrent Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets" xlink:to="lab_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesCommitmentsAndContingenciesLineItems_62b8dd10-ed14-485a-add2-b2ff307e2f8e_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesCommitmentsAndContingenciesLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Commitments And Contingencies [Line Items]</link:label>
    <link:label id="lab_pnm_PublicUtilitiesCommitmentsAndContingenciesLineItems_label_en-US" xlink:label="lab_pnm_PublicUtilitiesCommitmentsAndContingenciesLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Commitments And Contingencies [Line Items]</link:label>
    <link:label id="lab_pnm_PublicUtilitiesCommitmentsAndContingenciesLineItems_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesCommitmentsAndContingenciesLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Commitments And Contingencies [Line Items]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesCommitmentsAndContingenciesLineItems" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesCommitmentsAndContingenciesLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesCommitmentsAndContingenciesLineItems" xlink:to="lab_pnm_PublicUtilitiesCommitmentsAndContingenciesLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain_d18c27e2-731c-42ad-ba02-65f6331651e7_terseLabel_en-US" xlink:label="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of Individual [Domain]</link:label>
    <link:label id="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain_label_en-US" xlink:label="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Title of Individual [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:to="lab_srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_b70875b3-3d01-4f2e-8ed9-7f0b2e5227c1_totalLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net utility plant</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Property, Plant and Equipment, Net</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:to="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NotesPayableOtherPayablesMember_26adc637-d678-4e21-8151-289df03cac2e_terseLabel_en-US" xlink:label="lab_us-gaap_NotesPayableOtherPayablesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Bonds</link:label>
    <link:label id="lab_us-gaap_NotesPayableOtherPayablesMember_label_en-US" xlink:label="lab_us-gaap_NotesPayableOtherPayablesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Notes Payable, Other Payables [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NotesPayableOtherPayablesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NotesPayableOtherPayablesMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NotesPayableOtherPayablesMember" xlink:to="lab_us-gaap_NotesPayableOtherPayablesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentOtherNet_4860dafc-db7b-42c6-a174-348d76159c43_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentOtherNet" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Non-utility property, net</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentOtherNet_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentOtherNet" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Property, Plant and Equipment, Other, Net</link:label>
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    <link:label id="lab_us-gaap_CommonStockDividendsPerShareDeclared_e38e3a7d-eb2e-4e38-9918-fd5534a8e02b_verboseLabel_en-US" xlink:label="lab_us-gaap_CommonStockDividendsPerShareDeclared" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Dividends Declared per Common Share (dollars per share)</link:label>
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    <link:label id="lab_pnm_PublicUtilitiesFilingPeriodExtension_53e23d01-0341-4475-8b24-f055a8152f7a_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesFilingPeriodExtension" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Filing period, extension</link:label>
    <link:label id="lab_pnm_PublicUtilitiesFilingPeriodExtension_label_en-US" xlink:label="lab_pnm_PublicUtilitiesFilingPeriodExtension" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Filing Period, Extension</link:label>
    <link:label id="lab_pnm_PublicUtilitiesFilingPeriodExtension_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesFilingPeriodExtension" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Filing Period, Extension</link:label>
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    <link:label id="lab_us-gaap_RegulatoryLiabilityNoncurrent_6996b990-6f78-496e-ad3c-e4dae9d8b20a_terseLabel_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilityNoncurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory liabilities</link:label>
    <link:label id="lab_us-gaap_RegulatoryLiabilityNoncurrent_label_en-US" xlink:label="lab_us-gaap_RegulatoryLiabilityNoncurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Liability, Noncurrent</link:label>
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    <link:label id="lab_us-gaap_SignificantAccountingPoliciesTextBlock_b998bd95-bf7f-4563-8b55-bf888f33dd07_terseLabel_en-US" xlink:label="lab_us-gaap_SignificantAccountingPoliciesTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Significant Accounting Policies and Responsibility for Financial Statements</link:label>
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    <link:label id="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized_6498398c-ce1b-4fa2-a30a-db10d1a7382c_terseLabel_en-US" xlink:label="lab_us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Unrecognized expense related to stock awards</link:label>
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    <link:label id="lab_us-gaap_DerivativeAssetNotionalAmount_73e53d1a-e2e2-4d65-86d6-337b1fc8257e_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeAssetNotionalAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Derivative asset, notional amount</link:label>
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    <link:label id="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterTwentyYearsFairValue_9390ed55-06f7-4004-8aad-dbb3edce2fb5_terseLabel_en-US" xlink:label="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterTwentyYearsFairValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">After 20 years</link:label>
    <link:label id="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterTwentyYearsFairValue_label_en-US" xlink:label="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterTwentyYearsFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, after Twenty Years, Fair Value</link:label>
    <link:label id="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterTwentyYearsFairValue_documentation_en-US" xlink:label="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterTwentyYearsFairValue" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, after Twenty Years, Fair Value</link:label>
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    <link:label id="lab_us-gaap_PublicUtilitiesGeneralDisclosuresLineItems_a62285da-7c9f-4973-baea-4ccee3cb06bc_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesGeneralDisclosuresLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, General Disclosures [Line Items]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesGeneralDisclosuresLineItems" xlink:to="lab_us-gaap_PublicUtilitiesGeneralDisclosuresLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_8423a52f-b6ff-4d45-9992-ba559b655134_terseLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Property, Plant and Equipment, Type [Domain]</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-Lived Tangible Asset [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ConsolidatedEntitiesAxis_2ace3dff-9943-4885-8c0b-f04bb0c32530_terseLabel_en-US" xlink:label="lab_srt_ConsolidatedEntitiesAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Consolidated Entities [Axis]</link:label>
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    <link:label id="lab_pnm_UndergroundMember_e668fc45-8688-4175-90ed-8a00e5dee0fc_terseLabel_en-US" xlink:label="lab_pnm_UndergroundMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Underground</link:label>
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    <link:label id="lab_pnm_ReclamationTrustFundingYearTwo_bf8d21ac-4350-4607-adaf-780f31fddf7a_terseLabel_en-US" xlink:label="lab_pnm_ReclamationTrustFundingYearTwo" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reclamation trust funding, year two</link:label>
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    <link:label id="lab_pnm_ReclamationTrustFundingYearTwo_documentation_en-US" xlink:label="lab_pnm_ReclamationTrustFundingYearTwo" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reclamation Trust Funding, Year Two</link:label>
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    <link:label id="lab_us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent_bbd5424d-bf24-494a-9197-b0e7f0194d96_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total deferred credits and liabilities</link:label>
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    <link:label id="lab_pnm_AchievedPerformanceTargetFor2019Through2021Member_documentation_en-US" xlink:label="lab_pnm_AchievedPerformanceTargetFor2019Through2021Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Achieved Performance Target For 2019 Through 2021</link:label>
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    <link:label id="lab_us-gaap_OperatingLeaseLiability_bebed28a-2486-4024-b435-9c4da6d5f880_terseLabel_en-US" xlink:label="lab_us-gaap_OperatingLeaseLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lease liabilities as of March 31, 2023</link:label>
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    <link:label id="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsThroughFifteenYearsFairValue_label_en-US" xlink:label="lab_pnm_AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsThroughFifteenYearsFairValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available-for-sale Securities, Debt Maturities, after Ten Years Through Fifteen Years, Fair Value</link:label>
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    <link:label id="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue_c2112d3d-065b-4541-9f01-a5f34a922ee9_totalLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseLiabilityPaymentsDue" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total minimum lease payments</link:label>
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    <link:label id="lab_pnm_NumberOfAllotmentsWhereLandownersAreRevokingRightsOfWayRenewalConsents_43a17529-4e32-4460-a510-1d27450ce72d_terseLabel_en-US" xlink:label="lab_pnm_NumberOfAllotmentsWhereLandownersAreRevokingRightsOfWayRenewalConsents" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of allotments where landowners are revoking rights of way renewal consents (in allotment parcels)</link:label>
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    <link:label id="lab_pnm_TexasNewMexicoPowerCompanyMember_a68c8b95-177c-457e-8d79-6f2bfec570fc_terseLabel_en-US" xlink:label="lab_pnm_TexasNewMexicoPowerCompanyMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Texas-New Mexico Power Company</link:label>
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    <link:label id="lab_us-gaap_ProceedsFromRepaymentsOfLinesOfCredit_7a115779-746a-4232-8093-595d774a4378_verboseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromRepaymentsOfLinesOfCredit" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revolving credit facilities borrowings (repayments), net</link:label>
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    <link:label id="lab_us-gaap_HedgingRelationshipDomain_9d0aa099-e8fe-4a2a-b7ce-932f0df27d4a_terseLabel_en-US" xlink:label="lab_us-gaap_HedgingRelationshipDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Hedging Relationship [Domain]</link:label>
    <link:label id="lab_us-gaap_HedgingRelationshipDomain_label_en-US" xlink:label="lab_us-gaap_HedgingRelationshipDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Hedging Relationship [Domain]</link:label>
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    <link:label id="lab_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock_6bb59f15-3bdb-45ec-b878-16e01799388a_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Investments Classified by Contractual Maturity Date</link:label>
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    <link:label id="lab_us-gaap_HedgingDesignationAxis_f8134c81-e234-4b5e-a319-844fc1177950_terseLabel_en-US" xlink:label="lab_us-gaap_HedgingDesignationAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Hedging Designation [Axis]</link:label>
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    <link:label id="lab_pnm_FinancialStatementLocationDomain_f69c7703-becb-4d3f-9da2-3aec93c5d9c7_terseLabel_en-US" xlink:label="lab_pnm_FinancialStatementLocationDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financial Statement Location [Domain]</link:label>
    <link:label id="lab_pnm_FinancialStatementLocationDomain_label_en-US" xlink:label="lab_pnm_FinancialStatementLocationDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financial Statement Location [Domain]</link:label>
    <link:label id="lab_pnm_FinancialStatementLocationDomain_documentation_en-US" xlink:label="lab_pnm_FinancialStatementLocationDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financial Statement Location [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FinancialStatementLocationDomain" xlink:href="pnm-20230331.xsd#pnm_FinancialStatementLocationDomain"/>
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    <link:label id="lab_us-gaap_WeightedAverageNumberOfSharesRestrictedStock_d1d6f59e-5af7-4675-b5ed-22bc35ea29ea_terseLabel_en-US" xlink:label="lab_us-gaap_WeightedAverageNumberOfSharesRestrictedStock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Vested awards of restricted stock (in shares)</link:label>
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    <link:label id="lab_dei_EntityFilerCategory_9d729eeb-0e86-44d4-bd80-2ece13ed2a9f_terseLabel_en-US" xlink:label="lab_dei_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Filer Category</link:label>
    <link:label id="lab_dei_EntityFilerCategory_label_en-US" xlink:label="lab_dei_EntityFilerCategory" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Filer Category</link:label>
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    <link:label id="lab_pnm_NetUtilityPlantIncreaseDecreaseInLeaseholdImprovementsDuringThePeriod_08e44dca-24af-4736-ae48-9628d6a38429_negatedTerseLabel_en-US" xlink:label="lab_pnm_NetUtilityPlantIncreaseDecreaseInLeaseholdImprovementsDuringThePeriod" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Decrease in undepreciated leasehold improvements</link:label>
    <link:label id="lab_pnm_NetUtilityPlantIncreaseDecreaseInLeaseholdImprovementsDuringThePeriod_label_en-US" xlink:label="lab_pnm_NetUtilityPlantIncreaseDecreaseInLeaseholdImprovementsDuringThePeriod" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Utility Plant, Increase (Decrease) In Leasehold Improvements During The Period</link:label>
    <link:label id="lab_pnm_NetUtilityPlantIncreaseDecreaseInLeaseholdImprovementsDuringThePeriod_documentation_en-US" xlink:label="lab_pnm_NetUtilityPlantIncreaseDecreaseInLeaseholdImprovementsDuringThePeriod" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Net Utility Plant, Increase (Decrease) In Leasehold Improvements During The Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NetUtilityPlantIncreaseDecreaseInLeaseholdImprovementsDuringThePeriod" xlink:href="pnm-20230331.xsd#pnm_NetUtilityPlantIncreaseDecreaseInLeaseholdImprovementsDuringThePeriod"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NetUtilityPlantIncreaseDecreaseInLeaseholdImprovementsDuringThePeriod" xlink:to="lab_pnm_NetUtilityPlantIncreaseDecreaseInLeaseholdImprovementsDuringThePeriod" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FundsContributedMineReclamationTrust_9677949e-7847-4f29-a129-586d32194d83_terseLabel_en-US" xlink:label="lab_pnm_FundsContributedMineReclamationTrust" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Funds contributed, mine reclamation trust</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_pnm_FundsContributedMineReclamationTrust" xlink:href="pnm-20230331.xsd#pnm_FundsContributedMineReclamationTrust"/>
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    <link:label id="lab_pnm_AtTheMarketMember_3186cac5-731c-49e0-a5d6-d669f1c62f54_terseLabel_en-US" xlink:label="lab_pnm_AtTheMarketMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">At-The-Market</link:label>
    <link:label id="lab_pnm_AtTheMarketMember_label_en-US" xlink:label="lab_pnm_AtTheMarketMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">At-The-Market [Member]</link:label>
    <link:label id="lab_pnm_AtTheMarketMember_documentation_en-US" xlink:label="lab_pnm_AtTheMarketMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">At-The-Market</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_AtTheMarketMember" xlink:href="pnm-20230331.xsd#pnm_AtTheMarketMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_AtTheMarketMember" xlink:to="lab_pnm_AtTheMarketMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity_f62f80cf-d1ce-44e5-ab13-7b0c9b64f552_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of megawatts for wind energy</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity_label_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Number of Mega Watts of Wind Energy Capacity</link:label>
    <link:label id="lab_pnm_PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Number of Mega Watts of Wind Energy Capacity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity" xlink:to="lab_pnm_PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfMegaWattsPurchased_d615e28a-19eb-4110-9d3a-2d8ed8238dac_terseLabel_en-US" xlink:label="lab_pnm_NumberOfMegaWattsPurchased" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of megawatts purchased (in megawatts)</link:label>
    <link:label id="lab_pnm_NumberOfMegaWattsPurchased_label_en-US" xlink:label="lab_pnm_NumberOfMegaWattsPurchased" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of Mega Watts Purchased</link:label>
    <link:label id="lab_pnm_NumberOfMegaWattsPurchased_documentation_en-US" xlink:label="lab_pnm_NumberOfMegaWattsPurchased" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of Mega Watts Purchased</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfMegaWattsPurchased" xlink:href="pnm-20230331.xsd#pnm_NumberOfMegaWattsPurchased"/>
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    <link:label id="lab_pnm_InsuranceCarrierAxis_1f9e9753-460b-4bd4-8d27-acec965f362d_terseLabel_en-US" xlink:label="lab_pnm_InsuranceCarrierAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Insurance Carrier [Axis]</link:label>
    <link:label id="lab_pnm_InsuranceCarrierAxis_label_en-US" xlink:label="lab_pnm_InsuranceCarrierAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Insurance Carrier [Axis]</link:label>
    <link:label id="lab_pnm_InsuranceCarrierAxis_documentation_en-US" xlink:label="lab_pnm_InsuranceCarrierAxis" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Insurance Carrier [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_InsuranceCarrierAxis" xlink:href="pnm-20230331.xsd#pnm_InsuranceCarrierAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_InsuranceCarrierAxis" xlink:to="lab_pnm_InsuranceCarrierAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommitmentsAndContingencies_11cd91e1-6c37-4cc2-9901-2e95da855298_terseLabel_en-US" xlink:label="lab_us-gaap_CommitmentsAndContingencies" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commitments and Contingencies (Note 11)</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommitmentsAndContingencies"/>
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    <link:label id="lab_dei_SecurityExchangeName_9730a68e-dab9-4ffe-8c62-066f979209b6_terseLabel_en-US" xlink:label="lab_dei_SecurityExchangeName" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Security Exchange Name</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_dei_SecurityExchangeName" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_SecurityExchangeName"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_SecurityExchangeName" xlink:to="lab_dei_SecurityExchangeName" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_be209260-4427-475f-b68e-11ab4ae79f6a_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reclassification adjustment for (gains) included in net earnings, net of income tax expense of $565, and $0</link:label>
    <link:label id="lab_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax_label_en-US" xlink:label="lab_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax" xlink:to="lab_us-gaap_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationAfterTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LettersOfCreditOutstandingAmount_8f3df94a-9f62-4c91-b4dc-07197ee2548f_terseLabel_en-US" xlink:label="lab_us-gaap_LettersOfCreditOutstandingAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Letters of credit outstanding</link:label>
    <link:label id="lab_us-gaap_LettersOfCreditOutstandingAmount_label_en-US" xlink:label="lab_us-gaap_LettersOfCreditOutstandingAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Letters of Credit Outstanding, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LettersOfCreditOutstandingAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LettersOfCreditOutstandingAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LettersOfCreditOutstandingAmount" xlink:to="lab_us-gaap_LettersOfCreditOutstandingAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_02db06de-2139-4599-961f-72d7e48f20e7_verboseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total revenues from contracts with customers</link:label>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from Contract with Customer, Excluding Assessed Tax</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:to="lab_us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DefinedBenefitPlanServiceCost_71729e49-c8e4-4d93-8ae8-f42c32bd5bec_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanServiceCost" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Service cost</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanServiceCost_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanServiceCost" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Defined Benefit Plan, Service Cost</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanServiceCost" xlink:to="lab_us-gaap_DefinedBenefitPlanServiceCost" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsMember_8115a9d5-17ac-459a-ab7a-c8c26b9c55ad_terseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsMember_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash and Cash Equivalents [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CashAndCashEquivalentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashAndCashEquivalentsMember" xlink:to="lab_us-gaap_CashAndCashEquivalentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_CoverAbstract_32f2fecd-bcf8-489c-a2e7-f48802078557_terseLabel_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cover page.</link:label>
    <link:label id="lab_dei_CoverAbstract_label_en-US" xlink:label="lab_dei_CoverAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cover [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_CoverAbstract" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_CoverAbstract"/>
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    <link:label id="lab_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_1cb6534d-3d65-4ea5-9ee4-1aaff329a1f1_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Financing leases</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Weighted Average Discount Rate, Percent</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent" xlink:to="lab_us-gaap_FinanceLeaseWeightedAverageDiscountRatePercent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerTextBlock_46583133-8d44-440d-9471-e58d2e5883aa_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Electric Operating Revenues</link:label>
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    <link:label id="lab_us-gaap_SegmentReportingAbstract_3d96d55d-3cbd-4aca-a197-45c18409dd5f_terseLabel_en-US" xlink:label="lab_us-gaap_SegmentReportingAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segment Reporting [Abstract]</link:label>
    <link:label id="lab_us-gaap_SegmentReportingAbstract_label_en-US" xlink:label="lab_us-gaap_SegmentReportingAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Segment Reporting [Abstract]</link:label>
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    <link:label id="lab_srt_ScenarioForecastMember_f5d25d60-a9eb-480f-abb0-21cd4b2395e8_terseLabel_en-US" xlink:label="lab_srt_ScenarioForecastMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Forecast</link:label>
    <link:label id="lab_srt_ScenarioForecastMember_label_en-US" xlink:label="lab_srt_ScenarioForecastMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Forecast [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ScenarioForecastMember" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ScenarioForecastMember"/>
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    <link:label id="lab_us-gaap_DerivativeAssetsCurrent_cfbdd6cb-5807-4d95-bf56-0583fa18edd6_verboseLabel_en-US" xlink:label="lab_us-gaap_DerivativeAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other current assets</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeAssetsCurrent" xlink:to="lab_us-gaap_DerivativeAssetsCurrent" xlink:type="arc" order="1"/>
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    <link:label id="lab_pnm_ScheduleOfCommodityContractContingentConsiderationTableTextBlock_99e3648d-56c9-4b9e-b011-e99334c6ecca_terseLabel_en-US" xlink:label="lab_pnm_ScheduleOfCommodityContractContingentConsiderationTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule Of Commodity Contract Contingent Consideration</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_ScheduleOfCommodityContractContingentConsiderationTableTextBlock" xlink:to="lab_pnm_ScheduleOfCommodityContractContingentConsiderationTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_c61a94fa-8293-4474-9695-c22695513450_totalLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Total liabilities and stockholders' equity</link:label>
    <link:label id="lab_us-gaap_LiabilitiesAndStockholdersEquity_label_en-US" xlink:label="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Liabilities and Equity</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity" xlink:to="lab_us-gaap_LiabilitiesAndStockholdersEquity" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongtermDebtTypeAxis_f094093a-17ce-46a5-9890-009ea8de9e5f_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Debt, Type [Axis]</link:label>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongtermDebtTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LongtermDebtTypeAxis"/>
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    <link:label id="lab_us-gaap_Cash_602b17d6-ca70-4ad0-a7ca-0bcb4c61b709_terseLabel_en-US" xlink:label="lab_us-gaap_Cash" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Current assets</link:label>
    <link:label id="lab_us-gaap_Cash_label_en-US" xlink:label="lab_us-gaap_Cash" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Cash</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_Cash" xlink:to="lab_us-gaap_Cash" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_AssetsAndLiabilitiesLesseeTableTextBlock_28492bb5-ea87-49fd-b52c-807ffcc50945_terseLabel_en-US" xlink:label="lab_pnm_AssetsAndLiabilitiesLesseeTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets and Liabilities, Lessee</link:label>
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    <link:label id="lab_pnm_AssetsAndLiabilitiesLesseeTableTextBlock_documentation_en-US" xlink:label="lab_pnm_AssetsAndLiabilitiesLesseeTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets and Liabilities, Lessee [Table Text Block]</link:label>
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    <link:label id="lab_pnm_EnergyTransitionActMember_4d53e603-4f0c-4126-96f3-c9e39891818e_terseLabel_en-US" xlink:label="lab_pnm_EnergyTransitionActMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy Transition Act</link:label>
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    <link:label id="lab_pnm_EnergyTransitionActMember_documentation_en-US" xlink:label="lab_pnm_EnergyTransitionActMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy Transition Act [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_EnergyTransitionActMember" xlink:href="pnm-20230331.xsd#pnm_EnergyTransitionActMember"/>
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    <link:label id="lab_pnm_RegulatoryAssetAllowanceForCreditLoss_657f0520-d525-4d57-b8f5-39e55b2aea55_terseLabel_en-US" xlink:label="lab_pnm_RegulatoryAssetAllowanceForCreditLoss" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory asset, allowance for credit loss</link:label>
    <link:label id="lab_pnm_RegulatoryAssetAllowanceForCreditLoss_label_en-US" xlink:label="lab_pnm_RegulatoryAssetAllowanceForCreditLoss" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Asset, Allowance For Credit Loss</link:label>
    <link:label id="lab_pnm_RegulatoryAssetAllowanceForCreditLoss_documentation_en-US" xlink:label="lab_pnm_RegulatoryAssetAllowanceForCreditLoss" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Asset, Allowance For Credit Loss</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RegulatoryAssetAllowanceForCreditLoss" xlink:href="pnm-20230331.xsd#pnm_RegulatoryAssetAllowanceForCreditLoss"/>
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    <link:label id="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyYearOne_c5e63f2d-c27c-44bf-9dc2-693431de2c6b_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyYearOne" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Program costs related to energy efficiency, in year one</link:label>
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    <link:label id="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyYearOne_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyYearOne" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Program Costs Related To Energy Efficiency, Year One</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyYearOne" xlink:to="lab_pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiencyYearOne" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_VariableRateDebtTranche2And3Member_23fa424a-b9b1-4764-958c-08224ce86f3a_terseLabel_en-US" xlink:label="lab_pnm_VariableRateDebtTranche2And3Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt, Tranche 2 And 3</link:label>
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    <link:label id="lab_pnm_VariableRateDebtTranche2And3Member_documentation_en-US" xlink:label="lab_pnm_VariableRateDebtTranche2And3Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Variable Rate Debt, Tranche 2 And 3</link:label>
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    <link:label id="lab_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain_7a7bbe89-b6cf-44cb-aeb7-4726f2c9a9d0_terseLabel_en-US" xlink:label="lab_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Gross realized gains</link:label>
    <link:label id="lab_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain_label_en-US" xlink:label="lab_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-Sale, Realized Gain</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DebtSecuritiesAvailableForSaleRealizedGain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain" xlink:to="lab_us-gaap_DebtSecuritiesAvailableForSaleRealizedGain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_b53ea95b-5a6a-452d-ab75-06a0fbcf3ef1_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Less: Imputed interest</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, Undiscounted Excess Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_LongTermContractOptionToPurchaseOwnershipPercentage_13e7e8a0-350c-42d1-b781-534046c213ca_terseLabel_en-US" xlink:label="lab_pnm_LongTermContractOptionToPurchaseOwnershipPercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term contract option to purchase, ownership percentage (up to)</link:label>
    <link:label id="lab_pnm_LongTermContractOptionToPurchaseOwnershipPercentage_label_en-US" xlink:label="lab_pnm_LongTermContractOptionToPurchaseOwnershipPercentage" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long Term Contract Option To Purchase, Ownership Percentage</link:label>
    <link:label id="lab_pnm_LongTermContractOptionToPurchaseOwnershipPercentage_documentation_en-US" xlink:label="lab_pnm_LongTermContractOptionToPurchaseOwnershipPercentage" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long term contract option to purchase, ownership percentage</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_LongTermContractOptionToPurchaseOwnershipPercentage" xlink:href="pnm-20230331.xsd#pnm_LongTermContractOptionToPurchaseOwnershipPercentage"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_LongTermContractOptionToPurchaseOwnershipPercentage" xlink:to="lab_pnm_LongTermContractOptionToPurchaseOwnershipPercentage" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_EarningsPerShareDiluted_3c431cb8-67f3-4b6e-a843-acbe8be533ed_terseLabel_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Diluted (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_EarningsPerShareDiluted_label_en-US" xlink:label="lab_us-gaap_EarningsPerShareDiluted" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Earnings Per Share, Diluted</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_EarningsPerShareDiluted" xlink:to="lab_us-gaap_EarningsPerShareDiluted" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_SaleOfStockNameOfTransactionDomain_14a4a2f1-825a-4194-9044-9ac6a3bce818_terseLabel_en-US" xlink:label="lab_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale of Stock [Domain]</link:label>
    <link:label id="lab_us-gaap_SaleOfStockNameOfTransactionDomain_label_en-US" xlink:label="lab_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Sale of Stock [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="lab_us-gaap_SaleOfStockNameOfTransactionDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_c510658e-a659-4e32-af3f-a7a0ccdd50e5_terseLabel_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Vesting period</link:label>
    <link:label id="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1_label_en-US" xlink:label="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:to="lab_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemsMegawatts_4637d671-b927-42ad-902e-2af120f948c6_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemsMegawatts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Battery energy storage systems (in megawatts)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemsMegawatts_label_en-US" xlink:label="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemsMegawatts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Battery Energy Storage Systems Megawatts</link:label>
    <link:label id="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemsMegawatts_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemsMegawatts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Battery Energy Storage Systems Megawatts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesBatteryEnergyStorageSystemsMegawatts" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesBatteryEnergyStorageSystemsMegawatts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesBatteryEnergyStorageSystemsMegawatts" xlink:to="lab_pnm_PublicUtilitiesBatteryEnergyStorageSystemsMegawatts" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesRenewableEnergyUnderContract_39c5a84a-7a80-4694-b49a-687690094395_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesRenewableEnergyUnderContract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Renewable energy capacity in operating (in mw)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesRenewableEnergyUnderContract_label_en-US" xlink:label="lab_pnm_PublicUtilitiesRenewableEnergyUnderContract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Renewable Energy Under Contract</link:label>
    <link:label id="lab_pnm_PublicUtilitiesRenewableEnergyUnderContract_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesRenewableEnergyUnderContract" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Renewable Energy Under Contract</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesRenewableEnergyUnderContract" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesRenewableEnergyUnderContract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesRenewableEnergyUnderContract" xlink:to="lab_pnm_PublicUtilitiesRenewableEnergyUnderContract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesSolarGenerationCapacityInMegawatts_a06cd4af-900c-425b-8e82-4c815f5f0844_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesSolarGenerationCapacityInMegawatts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Solar generation capacity (in megawatts)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesSolarGenerationCapacityInMegawatts_label_en-US" xlink:label="lab_pnm_PublicUtilitiesSolarGenerationCapacityInMegawatts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Solar Generation Capacity, In Megawatts</link:label>
    <link:label id="lab_pnm_PublicUtilitiesSolarGenerationCapacityInMegawatts_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesSolarGenerationCapacityInMegawatts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Solar generation capacity in Megawatts</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesSolarGenerationCapacityInMegawatts" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesSolarGenerationCapacityInMegawatts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesSolarGenerationCapacityInMegawatts" xlink:to="lab_pnm_PublicUtilitiesSolarGenerationCapacityInMegawatts" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_22d95bc8-ef62-480d-a636-3a0001c0f992_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2025</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, to be Paid, Year Two</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherAssetsCurrent_e04493a3-305a-4836-a722-5b57ce41512a_terseLabel_en-US" xlink:label="lab_us-gaap_OtherAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other current assets</link:label>
    <link:label id="lab_us-gaap_OtherAssetsCurrent_label_en-US" xlink:label="lab_us-gaap_OtherAssetsCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Assets, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherAssetsCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherAssetsCurrent" xlink:to="lab_us-gaap_OtherAssetsCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_A2020EnergyEfficiencyAnnualReportMember_1b652f48-bc2d-4d3e-a72a-45d22790e4ce_terseLabel_en-US" xlink:label="lab_pnm_A2020EnergyEfficiencyAnnualReportMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2020 Energy Efficiency Annual Report</link:label>
    <link:label id="lab_pnm_A2020EnergyEfficiencyAnnualReportMember_label_en-US" xlink:label="lab_pnm_A2020EnergyEfficiencyAnnualReportMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2020 Energy Efficiency Annual Report [Member]</link:label>
    <link:label id="lab_pnm_A2020EnergyEfficiencyAnnualReportMember_documentation_en-US" xlink:label="lab_pnm_A2020EnergyEfficiencyAnnualReportMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">2020 Energy Efficiency Annual Report</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_A2020EnergyEfficiencyAnnualReportMember" xlink:href="pnm-20230331.xsd#pnm_A2020EnergyEfficiencyAnnualReportMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_A2020EnergyEfficiencyAnnualReportMember" xlink:to="lab_pnm_A2020EnergyEfficiencyAnnualReportMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_c3b27626-1409-4192-83a4-6deeca5b5a38_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Available-for-sale Securities [Table]</link:label>
    <link:label id="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable_label_en-US" xlink:label="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Schedule of Available-for-Sale Securities [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:to="lab_us-gaap_ScheduleOfAvailableForSaleSecuritiesTable" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfDaysToTransferPayment_5a2be253-c306-4ce4-a4d7-fb5b6a3332b6_terseLabel_en-US" xlink:label="lab_pnm_NumberOfDaysToTransferPayment" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of days to transfer payment</link:label>
    <link:label id="lab_pnm_NumberOfDaysToTransferPayment_label_en-US" xlink:label="lab_pnm_NumberOfDaysToTransferPayment" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Days To Transfer Payment</link:label>
    <link:label id="lab_pnm_NumberOfDaysToTransferPayment_documentation_en-US" xlink:label="lab_pnm_NumberOfDaysToTransferPayment" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Days To Transfer Payment</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfDaysToTransferPayment" xlink:href="pnm-20230331.xsd#pnm_NumberOfDaysToTransferPayment"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfDaysToTransferPayment" xlink:to="lab_pnm_NumberOfDaysToTransferPayment" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_EnergyAxis_d398bc41-24f3-40ab-b0d1-dbf178d27149_terseLabel_en-US" xlink:label="lab_srt_EnergyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy [Axis]</link:label>
    <link:label id="lab_srt_EnergyAxis_label_en-US" xlink:label="lab_srt_EnergyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Energy [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_EnergyAxis" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_EnergyAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_EnergyAxis" xlink:to="lab_srt_EnergyAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_AssetsAndLiabilitiesLesseeLineItems_c9a3ae47-4685-4f1c-8182-213a85f54ede_terseLabel_en-US" xlink:label="lab_pnm_AssetsAndLiabilitiesLesseeLineItems" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets and Liabilities, Lessee [Line Items]</link:label>
    <link:label id="lab_pnm_AssetsAndLiabilitiesLesseeLineItems_label_en-US" xlink:label="lab_pnm_AssetsAndLiabilitiesLesseeLineItems" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assets And Liabilities, Lessee [Line Items]</link:label>
    <link:label id="lab_pnm_AssetsAndLiabilitiesLesseeLineItems_documentation_en-US" xlink:label="lab_pnm_AssetsAndLiabilitiesLesseeLineItems" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">[Line Items] for Assets and Liabilities, Lessee [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_AssetsAndLiabilitiesLesseeLineItems" xlink:href="pnm-20230331.xsd#pnm_AssetsAndLiabilitiesLesseeLineItems"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_AssetsAndLiabilitiesLesseeLineItems" xlink:to="lab_pnm_AssetsAndLiabilitiesLesseeLineItems" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_c079f730-f7bf-494d-9034-1faed3b7aa6c_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Plant in service, held for future use, and to be abandoned</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Property, Plant and Equipment, Plant in Service</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:to="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentPlantInService" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_c1280376-8696-493a-959c-531e949217cd_terseLabel_en-US" xlink:label="lab_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]</link:label>
    <link:label id="lab_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable_label_en-US" xlink:label="lab_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:to="lab_us-gaap_FairValuesDerivativesBalanceSheetLocationByDerivativeContractTypeByHedgingDesignationTable" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrentAbstract_2645af91-a3e7-4b2d-99b8-67c69af0f67f_terseLabel_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Deferred Credits and Other Liabilities:</link:label>
    <link:label id="lab_us-gaap_OtherLiabilitiesNoncurrentAbstract_label_en-US" xlink:label="lab_us-gaap_OtherLiabilitiesNoncurrentAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Liabilities, Noncurrent [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_OtherLiabilitiesNoncurrentAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherLiabilitiesNoncurrentAbstract" xlink:to="lab_us-gaap_OtherLiabilitiesNoncurrentAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate_3e8dadcc-8243-4675-aafc-107b7e42a1d2_terseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Assumptions used calculating net periodic benefit cost, discount rate</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:to="lab_us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FourCornersCSAMember_55804132-5e4c-4214-b726-c8c31bd0fbc7_terseLabel_en-US" xlink:label="lab_pnm_FourCornersCSAMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Four Corners CSA</link:label>
    <link:label id="lab_pnm_FourCornersCSAMember_label_en-US" xlink:label="lab_pnm_FourCornersCSAMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Four Corners CSA [Member]</link:label>
    <link:label id="lab_pnm_FourCornersCSAMember_documentation_en-US" xlink:label="lab_pnm_FourCornersCSAMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Four Corners CSA [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FourCornersCSAMember" xlink:href="pnm-20230331.xsd#pnm_FourCornersCSAMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FourCornersCSAMember" xlink:to="lab_pnm_FourCornersCSAMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_a0eb940b-65db-406b-875a-18f9a15cb30a_terseLabel_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, Maturity</link:label>
    <link:label id="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock_label_en-US" xlink:label="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Lessee, Operating Lease, Liability, Maturity [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:to="lab_us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RegulatoryRateMattersDomain_2306db41-a55a-431b-82bc-ac7d715103ae_terseLabel_en-US" xlink:label="lab_pnm_RegulatoryRateMattersDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Rate Matters [Domain]</link:label>
    <link:label id="lab_pnm_RegulatoryRateMattersDomain_label_en-US" xlink:label="lab_pnm_RegulatoryRateMattersDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Rate Matters [Domain]</link:label>
    <link:label id="lab_pnm_RegulatoryRateMattersDomain_documentation_en-US" xlink:label="lab_pnm_RegulatoryRateMattersDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Regulatory Rate Matters [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RegulatoryRateMattersDomain" xlink:href="pnm-20230331.xsd#pnm_RegulatoryRateMattersDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_RegulatoryRateMattersDomain" xlink:to="lab_pnm_RegulatoryRateMattersDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_dei_EntityAddressAddressLine1_7923fea1-3aea-44c9-9407-c5970076a7bd_terseLabel_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:label id="lab_dei_EntityAddressAddressLine1_label_en-US" xlink:label="lab_dei_EntityAddressAddressLine1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Entity Address, Address Line One</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityAddressAddressLine1" xlink:href="https://xbrl.sec.gov/dei/2022/dei-2022.xsd#dei_EntityAddressAddressLine1"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_dei_EntityAddressAddressLine1" xlink:to="lab_dei_EntityAddressAddressLine1" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_ContractWithCustomerLiability_e1fb52b0-615c-43e3-b61a-996330c59c5c_terseLabel_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contractual Liability</link:label>
    <link:label id="lab_us-gaap_ContractWithCustomerLiability_label_en-US" xlink:label="lab_us-gaap_ContractWithCustomerLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Contract with Customer, Liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiability" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ContractWithCustomerLiability"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ContractWithCustomerLiability" xlink:to="lab_us-gaap_ContractWithCustomerLiability" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_CollaborativeArrangementOwnerObligationsDefaultAmount_3d20f0da-40b4-402a-8c8e-a5f7ff4f3ff9_terseLabel_en-US" xlink:label="lab_pnm_CollaborativeArrangementOwnerObligationsDefaultAmount" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Payment defaults under agreements</link:label>
    <link:label id="lab_pnm_CollaborativeArrangementOwnerObligationsDefaultAmount_label_en-US" xlink:label="lab_pnm_CollaborativeArrangementOwnerObligationsDefaultAmount" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Collaborative Arrangement, Owner Obligations, Default, Amount</link:label>
    <link:label id="lab_pnm_CollaborativeArrangementOwnerObligationsDefaultAmount_documentation_en-US" xlink:label="lab_pnm_CollaborativeArrangementOwnerObligationsDefaultAmount" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Collaborative Arrangement, Owner Obligations, Default, Amount</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_CollaborativeArrangementOwnerObligationsDefaultAmount" xlink:href="pnm-20230331.xsd#pnm_CollaborativeArrangementOwnerObligationsDefaultAmount"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_CollaborativeArrangementOwnerObligationsDefaultAmount" xlink:to="lab_pnm_CollaborativeArrangementOwnerObligationsDefaultAmount" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PurchasedThroughMay302028Member_1da62e09-58e3-43ea-867a-37a51fb8511f_terseLabel_en-US" xlink:label="lab_pnm_PurchasedThroughMay302028Member" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchased through May 2028</link:label>
    <link:label id="lab_pnm_PurchasedThroughMay302028Member_label_en-US" xlink:label="lab_pnm_PurchasedThroughMay302028Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchased Through May 30, 2028 [Member]</link:label>
    <link:label id="lab_pnm_PurchasedThroughMay302028Member_documentation_en-US" xlink:label="lab_pnm_PurchasedThroughMay302028Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Purchased Through May 30, 2028 [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PurchasedThroughMay302028Member" xlink:href="pnm-20230331.xsd#pnm_PurchasedThroughMay302028Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PurchasedThroughMay302028Member" xlink:to="lab_pnm_PurchasedThroughMay302028Member" xlink:type="arc" order="1"/>
    <link:label id="lab_srt_ProductOrServiceAxis_f8a11984-8ab0-4b89-a44a-b7dab16e6142_terseLabel_en-US" xlink:label="lab_srt_ProductOrServiceAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:label id="lab_srt_ProductOrServiceAxis_label_en-US" xlink:label="lab_srt_ProductOrServiceAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Product and Service [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_srt_ProductOrServiceAxis" xlink:href="https://xbrl.fasb.org/srt/2022/elts/srt-2022.xsd#srt_ProductOrServiceAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_srt_ProductOrServiceAxis" xlink:to="lab_srt_ProductOrServiceAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_58fd6dd9-420c-4174-b8f0-b81a03005f2d_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Expected return on plan assets</link:label>
    <link:label id="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_label_en-US" xlink:label="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Defined Benefit Plan, Expected Return (Loss) on Plan Assets</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:to="lab_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_FinanceLeaseCapitalizedCosts_f64e1f8d-02b4-4f96-a9bb-16c9e974177a_negatedTerseLabel_en-US" xlink:label="lab_pnm_FinanceLeaseCapitalizedCosts" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Amounts capitalized</link:label>
    <link:label id="lab_pnm_FinanceLeaseCapitalizedCosts_label_en-US" xlink:label="lab_pnm_FinanceLeaseCapitalizedCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Capitalized Costs</link:label>
    <link:label id="lab_pnm_FinanceLeaseCapitalizedCosts_documentation_en-US" xlink:label="lab_pnm_FinanceLeaseCapitalizedCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Capitalized Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_FinanceLeaseCapitalizedCosts" xlink:href="pnm-20230331.xsd#pnm_FinanceLeaseCapitalizedCosts"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_FinanceLeaseCapitalizedCosts" xlink:to="lab_pnm_FinanceLeaseCapitalizedCosts" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_NuclearPlantMember_c23899b5-d912-47d3-ba95-517ae8497651_terseLabel_en-US" xlink:label="lab_us-gaap_NuclearPlantMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Nuclear plant</link:label>
    <link:label id="lab_us-gaap_NuclearPlantMember_label_en-US" xlink:label="lab_us-gaap_NuclearPlantMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Nuclear Plant [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NuclearPlantMember" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_NuclearPlantMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NuclearPlantMember" xlink:to="lab_us-gaap_NuclearPlantMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PnmrAndPnmMember_caf8661a-4373-4605-ab12-bb7a21089036_terseLabel_en-US" xlink:label="lab_pnm_PnmrAndPnmMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR and PNM</link:label>
    <link:label id="lab_pnm_PnmrAndPnmMember_label_en-US" xlink:label="lab_pnm_PnmrAndPnmMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR and PNM [Member]</link:label>
    <link:label id="lab_pnm_PnmrAndPnmMember_documentation_en-US" xlink:label="lab_pnm_PnmrAndPnmMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNMR and PNM [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PnmrAndPnmMember" xlink:href="pnm-20230331.xsd#pnm_PnmrAndPnmMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PnmrAndPnmMember" xlink:to="lab_pnm_PnmrAndPnmMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_InterestExpense_3b4e4454-46c9-403a-b164-3ec1be96dab6_terseLabel_en-US" xlink:label="lab_us-gaap_InterestExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest Charges</link:label>
    <link:label id="lab_us-gaap_InterestExpense_39397a57-a6cd-4d9f-b357-38dbfacbf462_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_InterestExpense" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest Charges</link:label>
    <link:label id="lab_us-gaap_InterestExpense_label_en-US" xlink:label="lab_us-gaap_InterestExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Interest Expense</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_InterestExpense"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpense" xlink:to="lab_us-gaap_InterestExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesAbstract_d31fe1fb-5353-4287-b632-91dc7f278341_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Available-for-sale debt securities:</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleSecuritiesAbstract_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleSecuritiesAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Debt Securities, Available-for-Sale [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_AvailableForSaleSecuritiesAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleSecuritiesAbstract" xlink:to="lab_us-gaap_AvailableForSaleSecuritiesAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesPotentialToEmitTonsPerYearOfVisibilityImpairingPollutionMaximum_63e05c15-539f-4988-bb58-576dea278cb0_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesPotentialToEmitTonsPerYearOfVisibilityImpairingPollutionMaximum" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Potential to emit tons per year of visibility impairing pollution (in tons, more than)</link:label>
    <link:label id="lab_pnm_PublicUtilitiesPotentialToEmitTonsPerYearOfVisibilityImpairingPollutionMaximum_label_en-US" xlink:label="lab_pnm_PublicUtilitiesPotentialToEmitTonsPerYearOfVisibilityImpairingPollutionMaximum" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Potential To Emit Tons Per Year Of Visibility Impairing Pollution, Maximum</link:label>
    <link:label id="lab_pnm_PublicUtilitiesPotentialToEmitTonsPerYearOfVisibilityImpairingPollutionMaximum_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesPotentialToEmitTonsPerYearOfVisibilityImpairingPollutionMaximum" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Potential To Emit Tons Per Year Of Visibility Impairing Pollution, Maximum</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesPotentialToEmitTonsPerYearOfVisibilityImpairingPollutionMaximum" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesPotentialToEmitTonsPerYearOfVisibilityImpairingPollutionMaximum"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_PublicUtilitiesPotentialToEmitTonsPerYearOfVisibilityImpairingPollutionMaximum" xlink:to="lab_pnm_PublicUtilitiesPotentialToEmitTonsPerYearOfVisibilityImpairingPollutionMaximum" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RetirementPlanTypeAxis_4da3b914-d148-45e2-8839-c5a3b7d255ee_terseLabel_en-US" xlink:label="lab_us-gaap_RetirementPlanTypeAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retirement Plan Type [Axis]</link:label>
    <link:label id="lab_us-gaap_RetirementPlanTypeAxis_label_en-US" xlink:label="lab_us-gaap_RetirementPlanTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retirement Plan Type [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetirementPlanTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RetirementPlanTypeAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RetirementPlanTypeAxis" xlink:to="lab_us-gaap_RetirementPlanTypeAxis" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_OutOfPocketFeesAndExpensesReimbursement_1e71d209-6377-4457-82dd-c1b11ce60159_terseLabel_en-US" xlink:label="lab_pnm_OutOfPocketFeesAndExpensesReimbursement" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Out-of-pocket fees and expenses reimbursement</link:label>
    <link:label id="lab_pnm_OutOfPocketFeesAndExpensesReimbursement_label_en-US" xlink:label="lab_pnm_OutOfPocketFeesAndExpensesReimbursement" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Out-of-pocket Fees And Expenses Reimbursement</link:label>
    <link:label id="lab_pnm_OutOfPocketFeesAndExpensesReimbursement_documentation_en-US" xlink:label="lab_pnm_OutOfPocketFeesAndExpensesReimbursement" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Out-of-pocket Fees And Expenses Reimbursement</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_OutOfPocketFeesAndExpensesReimbursement" xlink:href="pnm-20230331.xsd#pnm_OutOfPocketFeesAndExpensesReimbursement"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_OutOfPocketFeesAndExpensesReimbursement" xlink:to="lab_pnm_OutOfPocketFeesAndExpensesReimbursement" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfPurchasePowerAgreementsNonDerivatives_6f237fe3-1042-4118-b848-f8e87755d443_terseLabel_en-US" xlink:label="lab_pnm_NumberOfPurchasePowerAgreementsNonDerivatives" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of purchase power agreements, non derivatives</link:label>
    <link:label id="lab_pnm_NumberOfPurchasePowerAgreementsNonDerivatives_label_en-US" xlink:label="lab_pnm_NumberOfPurchasePowerAgreementsNonDerivatives" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Purchase Power Agreements, Non Derivatives</link:label>
    <link:label id="lab_pnm_NumberOfPurchasePowerAgreementsNonDerivatives_documentation_en-US" xlink:label="lab_pnm_NumberOfPurchasePowerAgreementsNonDerivatives" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Purchase Power Agreements, Non Derivatives</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfPurchasePowerAgreementsNonDerivatives" xlink:href="pnm-20230331.xsd#pnm_NumberOfPurchasePowerAgreementsNonDerivatives"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfPurchasePowerAgreementsNonDerivatives" xlink:to="lab_pnm_NumberOfPurchasePowerAgreementsNonDerivatives" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_IncomeTaxSharingPaymentsMember_de9ea752-d257-4aea-b673-7de4b87189cb_terseLabel_en-US" xlink:label="lab_pnm_IncomeTaxSharingPaymentsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income tax sharing payments:</link:label>
    <link:label id="lab_pnm_IncomeTaxSharingPaymentsMember_label_en-US" xlink:label="lab_pnm_IncomeTaxSharingPaymentsMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Tax Sharing Payments [Member]</link:label>
    <link:label id="lab_pnm_IncomeTaxSharingPaymentsMember_documentation_en-US" xlink:label="lab_pnm_IncomeTaxSharingPaymentsMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Income Tax Sharing Payments [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_IncomeTaxSharingPaymentsMember" xlink:href="pnm-20230331.xsd#pnm_IncomeTaxSharingPaymentsMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_IncomeTaxSharingPaymentsMember" xlink:to="lab_pnm_IncomeTaxSharingPaymentsMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueTableTextBlock_22e0b79d-a610-413c-a477-372edda4cced_terseLabel_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue</link:label>
    <link:label id="lab_us-gaap_DisaggregationOfRevenueTableTextBlock_label_en-US" xlink:label="lab_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Disaggregation of Revenue [Table Text Block]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DisaggregationOfRevenueTableTextBlock"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:to="lab_us-gaap_DisaggregationOfRevenueTableTextBlock" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_NumberOfBatteryStorageAgreements_3a344a5f-c545-40e9-8c79-d8666dd472f9_terseLabel_en-US" xlink:label="lab_pnm_NumberOfBatteryStorageAgreements" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number of battery storage agreements</link:label>
    <link:label id="lab_pnm_NumberOfBatteryStorageAgreements_label_en-US" xlink:label="lab_pnm_NumberOfBatteryStorageAgreements" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Battery Storage Agreements</link:label>
    <link:label id="lab_pnm_NumberOfBatteryStorageAgreements_documentation_en-US" xlink:label="lab_pnm_NumberOfBatteryStorageAgreements" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Number Of Battery Storage Agreements</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_NumberOfBatteryStorageAgreements" xlink:href="pnm-20230331.xsd#pnm_NumberOfBatteryStorageAgreements"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_NumberOfBatteryStorageAgreements" xlink:to="lab_pnm_NumberOfBatteryStorageAgreements" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerAbstract_feb6a26c-67b4-4d8f-b883-a1fd5317a33d_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from Contract with Customer [Abstract]</link:label>
    <link:label id="lab_us-gaap_RevenueFromContractWithCustomerAbstract_label_en-US" xlink:label="lab_us-gaap_RevenueFromContractWithCustomerAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue from Contract with Customer [Abstract]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueFromContractWithCustomerAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueFromContractWithCustomerAbstract" xlink:to="lab_us-gaap_RevenueFromContractWithCustomerAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_DateOfRegulatoryActionDomain_26d42a84-6f3f-4b10-bf3c-b107c4a3c122_terseLabel_en-US" xlink:label="lab_pnm_DateOfRegulatoryActionDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Date of Regulatory Action [Domain]</link:label>
    <link:label id="lab_pnm_DateOfRegulatoryActionDomain_label_en-US" xlink:label="lab_pnm_DateOfRegulatoryActionDomain" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Date of Regulatory Action [Domain]</link:label>
    <link:label id="lab_pnm_DateOfRegulatoryActionDomain_documentation_en-US" xlink:label="lab_pnm_DateOfRegulatoryActionDomain" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Date of Regulatory Action [Domain]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_DateOfRegulatoryActionDomain" xlink:href="pnm-20230331.xsd#pnm_DateOfRegulatoryActionDomain"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_DateOfRegulatoryActionDomain" xlink:to="lab_pnm_DateOfRegulatoryActionDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RetailElectricCommercialCustomersMember_2bb3f316-66ff-4fcd-b35d-5f7adf25daf9_terseLabel_en-US" xlink:label="lab_pnm_RetailElectricCommercialCustomersMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Commercial</link:label>
    <link:label id="lab_pnm_RetailElectricCommercialCustomersMember_label_en-US" xlink:label="lab_pnm_RetailElectricCommercialCustomersMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retail Electric, Commercial Customers [Member]</link:label>
    <link:label id="lab_pnm_RetailElectricCommercialCustomersMember_documentation_en-US" xlink:label="lab_pnm_RetailElectricCommercialCustomersMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retail Electric, Commercial Customers</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RetailElectricCommercialCustomersMember" xlink:href="pnm-20230331.xsd#pnm_RetailElectricCommercialCustomersMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_RetailElectricCommercialCustomersMember" xlink:to="lab_pnm_RetailElectricCommercialCustomersMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_RenewableEnergyRiderMember_316bce1c-2f64-4a6d-b6e6-5473d5fcd0b0_terseLabel_en-US" xlink:label="lab_pnm_RenewableEnergyRiderMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Renewable Energy Rider</link:label>
    <link:label id="lab_pnm_RenewableEnergyRiderMember_label_en-US" xlink:label="lab_pnm_RenewableEnergyRiderMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Renewable Energy Rider [Member]</link:label>
    <link:label id="lab_pnm_RenewableEnergyRiderMember_documentation_en-US" xlink:label="lab_pnm_RenewableEnergyRiderMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Renewable Energy Rider [Member]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_RenewableEnergyRiderMember" xlink:href="pnm-20230331.xsd#pnm_RenewableEnergyRiderMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_pnm_RenewableEnergyRiderMember" xlink:to="lab_pnm_RenewableEnergyRiderMember" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_RevenueNotFromContractWithCustomerOther_9cf4bfe5-f52e-4302-a7f5-4a81c9d8fb6d_terseLabel_en-US" xlink:label="lab_us-gaap_RevenueNotFromContractWithCustomerOther" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other electric operating revenue</link:label>
    <link:label id="lab_us-gaap_RevenueNotFromContractWithCustomerOther_label_en-US" xlink:label="lab_us-gaap_RevenueNotFromContractWithCustomerOther" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Revenue Not from Contract with Customer, Other</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RevenueNotFromContractWithCustomerOther" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_RevenueNotFromContractWithCustomerOther"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RevenueNotFromContractWithCustomerOther" xlink:to="lab_us-gaap_RevenueNotFromContractWithCustomerOther" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_DividendsPayableCurrent_84a14b3a-6b28-4178-b773-3808e0e0c50e_verboseLabel_en-US" xlink:label="lab_us-gaap_DividendsPayableCurrent" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Dividends declared</link:label>
    <link:label id="lab_us-gaap_DividendsPayableCurrent_label_en-US" xlink:label="lab_us-gaap_DividendsPayableCurrent" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Dividends Payable, Current</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_DividendsPayableCurrent"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DividendsPayableCurrent" xlink:to="lab_us-gaap_DividendsPayableCurrent" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_FinanceLeaseInterestPaymentOnLiability_cdb97b85-491a-49a9-bd72-d53d62b0694b_terseLabel_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestPaymentOnLiability" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Operating cash flows from financing leases</link:label>
    <link:label id="lab_us-gaap_FinanceLeaseInterestPaymentOnLiability_label_en-US" xlink:label="lab_us-gaap_FinanceLeaseInterestPaymentOnLiability" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Finance Lease, Interest Payment on Liability</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FinanceLeaseInterestPaymentOnLiability" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FinanceLeaseInterestPaymentOnLiability"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FinanceLeaseInterestPaymentOnLiability" xlink:to="lab_us-gaap_FinanceLeaseInterestPaymentOnLiability" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CommonStockNoParValue_ba3e9f7d-4d4f-4ed3-928a-e439efb0ec36_terseLabel_en-US" xlink:label="lab_us-gaap_CommonStockNoParValue" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common stock, no par value (in dollars per share)</link:label>
    <link:label id="lab_us-gaap_CommonStockNoParValue_label_en-US" xlink:label="lab_us-gaap_CommonStockNoParValue" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Common Stock, No Par Value</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockNoParValue" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_CommonStockNoParValue"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CommonStockNoParValue" xlink:to="lab_us-gaap_CommonStockNoParValue" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_PublicUtilitiesPlantDecommissioningAndCoalMineReclamationCosts_844832dd-35f5-4f3d-8a00-8cb2da8cb7b8_terseLabel_en-US" xlink:label="lab_pnm_PublicUtilitiesPlantDecommissioningAndCoalMineReclamationCosts" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Plant decommissioning and coal mine reclamation costs</link:label>
    <link:label id="lab_pnm_PublicUtilitiesPlantDecommissioningAndCoalMineReclamationCosts_label_en-US" xlink:label="lab_pnm_PublicUtilitiesPlantDecommissioningAndCoalMineReclamationCosts" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Plant Decommissioning And Coal Mine Reclamation Costs</link:label>
    <link:label id="lab_pnm_PublicUtilitiesPlantDecommissioningAndCoalMineReclamationCosts_documentation_en-US" xlink:label="lab_pnm_PublicUtilitiesPlantDecommissioningAndCoalMineReclamationCosts" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Public Utilities, Plant Decommissioning And Coal Mine Reclamation Costs</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_pnm_PublicUtilitiesPlantDecommissioningAndCoalMineReclamationCosts" xlink:href="pnm-20230331.xsd#pnm_PublicUtilitiesPlantDecommissioningAndCoalMineReclamationCosts"/>
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    <link:label id="lab_us-gaap_FairValueByMeasurementFrequencyAxis_68768d2a-e91d-42e0-bdc1-c80b6be1a4fd_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Fair Value by Measurement Frequency [Axis]</link:label>
    <link:label id="lab_us-gaap_FairValueByMeasurementFrequencyAxis_label_en-US" xlink:label="lab_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Measurement Frequency [Axis]</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_FairValueByMeasurementFrequencyAxis"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:to="lab_us-gaap_FairValueByMeasurementFrequencyAxis" xlink:type="arc" order="1"/>
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    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward" xlink:href="https://xbrl.fasb.org/us-gaap/2022/elts/us-gaap-2022.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward"/>
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    <link:label id="lab_pnm_IncreaseDecreaseInCapitalExpendituresIncurredButNotYetPaid_380ad89f-d906-492a-b210-203fca127ba7_terseLabel_en-US" xlink:label="lab_pnm_IncreaseDecreaseInCapitalExpendituresIncurredButNotYetPaid" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Decrease in accrued plant additions</link:label>
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    <link:label id="lab_us-gaap_UtilitiesOperatingExpenseOperations_ca5c68d2-c7aa-4da8-b262-bbb2b81899bf_terseLabel_en-US" xlink:label="lab_us-gaap_UtilitiesOperatingExpenseOperations" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Transmission and distribution costs</link:label>
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    <link:label id="lab_us-gaap_LossContingenciesByNatureOfContingencyAxis_09ada2c2-102f-496e-afbc-cbcdd721378b_terseLabel_en-US" xlink:label="lab_us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Loss Contingency Nature [Axis]</link:label>
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    <link:label id="lab_us-gaap_GeneralAndAdministrativeExpense_efe777ab-a0be-4b78-a14b-e7def0533598_terseLabel_en-US" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Administrative and general</link:label>
    <link:label id="lab_us-gaap_GeneralAndAdministrativeExpense_label_en-US" xlink:label="lab_us-gaap_GeneralAndAdministrativeExpense" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">General and Administrative Expense</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_GeneralAndAdministrativeExpense" xlink:to="lab_us-gaap_GeneralAndAdministrativeExpense" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_LongtermDebtTypeDomain_6f80cfdb-b69c-4724-991c-66e24f061e1e_terseLabel_en-US" xlink:label="lab_us-gaap_LongtermDebtTypeDomain" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Long-term Debt, Type [Domain]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongtermDebtTypeDomain" xlink:to="lab_us-gaap_LongtermDebtTypeDomain" xlink:type="arc" order="1"/>
    <link:label id="lab_us-gaap_CompensationAndRetirementDisclosureAbstract_a8f238f4-9380-44c4-a0b5-840948896a1d_terseLabel_en-US" xlink:label="lab_us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retirement Benefits [Abstract]</link:label>
    <link:label id="lab_us-gaap_CompensationAndRetirementDisclosureAbstract_label_en-US" xlink:label="lab_us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Retirement Benefits [Abstract]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:to="lab_us-gaap_CompensationAndRetirementDisclosureAbstract" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_ReclamationTrustFundingRemainderOfYear_4389a568-85d9-4fb0-bd67-11339e5a8b2b_terseLabel_en-US" xlink:label="lab_pnm_ReclamationTrustFundingRemainderOfYear" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reclamation trust funding, remainder of year</link:label>
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    <link:label id="lab_pnm_ReclamationTrustFundingRemainderOfYear_documentation_en-US" xlink:label="lab_pnm_ReclamationTrustFundingRemainderOfYear" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Reclamation Trust Funding, Remainder Of Year</link:label>
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    <link:label id="lab_us-gaap_OtherDebtSecuritiesMember_2386bfbe-ede9-41b8-b2fb-433ce02b2920_terseLabel_en-US" xlink:label="lab_us-gaap_OtherDebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Corporate and other</link:label>
    <link:label id="lab_us-gaap_OtherDebtSecuritiesMember_label_en-US" xlink:label="lab_us-gaap_OtherDebtSecuritiesMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Other Debt Obligations [Member]</link:label>
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_OtherDebtSecuritiesMember" xlink:to="lab_us-gaap_OtherDebtSecuritiesMember" xlink:type="arc" order="1"/>
    <link:label id="lab_pnm_EquitySecuritiesOtherFundsMember_30e9b8a1-ed8b-48b5-ba39-7a4a697e1b88_terseLabel_en-US" xlink:label="lab_pnm_EquitySecuritiesOtherFundsMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Mutual funds and other</link:label>
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    <link:label id="lab_pnm_PNMAndTNMPMember_12f0f0ea-ed61-4fb9-872f-b54b08c48f5c_terseLabel_en-US" xlink:label="lab_pnm_PNMAndTNMPMember" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM and TNMP</link:label>
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    <link:label id="lab_pnm_PNMAndTNMPMember_documentation_en-US" xlink:label="lab_pnm_PNMAndTNMPMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">PNM And TNMP</link:label>
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    <link:label id="lab_us-gaap_StatementOfStockholdersEquityAbstract_f54cdf3f-5efe-431c-bfad-721ae0b62594_terseLabel_en-US" xlink:label="lab_us-gaap_StatementOfStockholdersEquityAbstract" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Statement of Stockholders' Equity [Abstract]</link:label>
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    <link:label id="lab_us-gaap_PublicUtilitiesApprovedDebtCapitalStructurePercentage_2097a929-b819-4ced-84ac-98cc51a784bb_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesApprovedDebtCapitalStructurePercentage" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xmlns:xml="http://www.w3.org/XML/1998/namespace" xml:lang="en-US">Approved debt capital structure</link:label>
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