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  <xsd:element id="pnm_NumberofstatesthatfiledapetitionagainsttheCleanPowerPlan" name="NumberofstatesthatfiledapetitionagainsttheCleanPowerPlan" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
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  <xsd:element abstract="true" id="pnm_PNMR2016TwoYearTermLoanMember" name="PNMR2016TwoYearTermLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_PNMRDevelopmentMember" name="PNMRDevelopmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="pnm_PNMSegmentMember" name="PNMSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="pnm_Presumednumberofcustomersthatwillelectnonstandardmeterservice" name="Presumednumberofcustomersthatwillelectnonstandardmeterservice" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
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  <xsd:element id="pnm_PublicUtilities1hourSO2EmissionsRate" name="PublicUtilities1hourSO2EmissionsRate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesAccumulatedplantwriteoffdisallowance" name="PublicUtilitiesAccumulatedplantwriteoffdisallowance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
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  <xsd:element id="pnm_PublicUtilitiesAnticipatedfutureprofitincentive" name="PublicUtilitiesAnticipatedfutureprofitincentive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
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  <xsd:element id="pnm_PublicUtilitiesApprovedNonstandardmeteringongoingexpensesmonthlycharge" name="PublicUtilitiesApprovedNonstandardmeteringongoingexpensesmonthlycharge" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
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  <xsd:element id="pnm_PublicUtilitiesApprovedrecoveryOperatingandMaintenancesavingsrelatedtoBalancedDraftTechnology" name="PublicUtilitiesApprovedrecoveryOperatingandMaintenancesavingsrelatedtoBalancedDraftTechnology" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="pnm_PublicUtilitiesCommitmentsAndContingenciesByNatureOfExpenseAxis" name="PublicUtilitiesCommitmentsAndContingenciesByNatureOfExpenseAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
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  <xsd:element id="pnm_PublicUtilitiesCompetitionTransitionChargeAdjustmenttoAnnualFundingAmount" name="PublicUtilitiesCompetitionTransitionChargeAdjustmenttoAnnualFundingAmount" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesCompetitionTransitionChargeRequestedAdjustmenttoIncreaseDecreaseCollectionofAmortization" name="PublicUtilitiesCompetitionTransitionChargeRequestedAdjustmenttoIncreaseDecreaseCollectionofAmortization" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesConcentrationRiskAmountToSellDueToAgreement" name="PublicUtilitiesConcentrationRiskAmountToSellDueToAgreement" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesConcentrationRiskPotentialMarketRisk" name="PublicUtilitiesConcentrationRiskPotentialMarketRisk" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesCurrentSurfaceMiningRoyaltyRateappliedbetween2000and2003" name="PublicUtilitiesCurrentSurfaceMiningRoyaltyRateappliedbetween2000and2003" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesCurrentownershipinterestinMegawatts" name="PublicUtilitiesCurrentownershipinterestinMegawatts" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesDisallowedleaseholdimprovements" name="PublicUtilitiesDisallowedleaseholdimprovements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesEmissionsTonsofSO2peryear" name="PublicUtilitiesEmissionsTonsofSO2peryear" nillable="true" substitutionGroup="xbrli:item" type="num:massItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesEnergyEfficiencyCostRecoveryFactorAmountRequested" name="PublicUtilitiesEnergyEfficiencyCostRecoveryFactorAmountRequested" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesEnergyEfficiencyCostRecoveryFactorPerformanceBonusRequested" name="PublicUtilitiesEnergyEfficiencyCostRecoveryFactorPerformanceBonusRequested" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesEnergyEfficiencyTargetedSavingsGWh" name="PublicUtilitiesEnergyEfficiencyTargetedSavingsGWh" nillable="true" substitutionGroup="xbrli:item" type="num:energyItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesEnergyEfficiencyandLoadManagementProgramsNumberofPrograms" name="PublicUtilitiesEnergyEfficiencyandLoadManagementProgramsNumberofPrograms" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesEnergyEfficiencyandLoadManagementProgramsProfitIncentiveMinimum" name="PublicUtilitiesEnergyEfficiencyandLoadManagementProgramsProfitIncentiveMinimum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesEnergyEfficiencyandLoadManagementProgramsProjectedEarnedIncentive" name="PublicUtilitiesEnergyEfficiencyandLoadManagementProgramsProjectedEarnedIncentive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesEnergyEfficiencyandLoadManagementProgramsTargetedEnergySavings" name="PublicUtilitiesEnergyEfficiencyandLoadManagementProgramsTargetedEnergySavings" nillable="true" substitutionGroup="xbrli:item" type="num:energyItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesEstimatedFutureInvestment" name="PublicUtilitiesEstimatedFutureInvestment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesEstimatedIncreaseinCoalCostPercentage" name="PublicUtilitiesEstimatedIncreaseinCoalCostPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesEstimatedUnderpaidSurfaceMiningRoyaltiesunderproposedratechange" name="PublicUtilitiesEstimatedUnderpaidSurfaceMiningRoyaltiesunderproposedratechange" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesEstimatedcoststoberecovered" name="PublicUtilitiesEstimatedcoststoberecovered" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesEstimatedcoststoremainunrecovered" name="PublicUtilitiesEstimatedcoststoremainunrecovered" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesEstimatedperiodoftimeforsupremecourtappealdecision" name="PublicUtilitiesEstimatedperiodoftimeforsupremecourtappealdecision" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesEstimatedratebasevalueat112018" name="PublicUtilitiesEstimatedratebasevalueat112018" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesEstimatedundepreciatedvalueat123117" name="PublicUtilitiesEstimatedundepreciatedvalueat123117" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesExpectedaveragemonthlyusageinmegawatts" name="PublicUtilitiesExpectedaveragemonthlyusageinmegawatts" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesFrequencyofIRPfilings" name="PublicUtilitiesFrequencyofIRPfilings" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesGovernmentStandardEmissionLimit" name="PublicUtilitiesGovernmentStandardEmissionLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesHearingExaminerProposeddisallowanceLeaseAbandonmentcosts" name="PublicUtilitiesHearingExaminerProposeddisallowanceLeaseAbandonmentcosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesHearingExaminerProposeddisallowanceLeaseAcquisitioncosts" name="PublicUtilitiesHearingExaminerProposeddisallowanceLeaseAcquisitioncosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesHearingExaminerRecommendationPercentageofrevenuetobecreditedtocustomers" name="PublicUtilitiesHearingExaminerRecommendationPercentageofrevenuetobecreditedtocustomers" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesHearingExaminerRecommendedRateincreaseDecreasenonfuelamount" name="PublicUtilitiesHearingExaminerRecommendedRateincreaseDecreasenonfuelamount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesHearingExaminerRecommendedReturnonEquityPercentage" name="PublicUtilitiesHearingExaminerRecommendedReturnonEquityPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue" name="PublicUtilitiesIncreaseAnnualTransmissionServiceRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesIntegratedResourcePlanActionPlanPeriod" name="PublicUtilitiesIntegratedResourcePlanActionPlanPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesIntegratedResourcePlanNumberofStatewideMeetings" name="PublicUtilitiesIntegratedResourcePlanNumberofStatewideMeetings" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesLiabilityInsuranceCoverage" name="PublicUtilitiesLiabilityInsuranceCoverage" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesLiabilityInsuranceCoverageSublimit" name="PublicUtilitiesLiabilityInsuranceCoverageSublimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesMaturitytermoverwhichfinancingsrequireregulatorapproval" name="PublicUtilitiesMaturitytermoverwhichfinancingsrequireregulatorapproval" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited" name="PublicUtilitiesMaximumAmountunderNuclearElectricInsuranceLimited" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesMaximumPotentialAssessmentPerIncident" name="PublicUtilitiesMaximumPotentialAssessmentPerIncident" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesMotionFiledforExtensionofProceduralSchedule" name="PublicUtilitiesMotionFiledforExtensionofProceduralSchedule" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesNetCarryingValueofUtilityPlant" name="PublicUtilitiesNetCarryingValueofUtilityPlant" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNewlyIdentifiedReplacementGasfiredGenerationinMegawatts" name="PublicUtilitiesNewlyIdentifiedReplacementGasfiredGenerationinMegawatts" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNonstandardmeteringongoingexpensestotaltobebornebyoptoutcustomers" name="PublicUtilitiesNonstandardmeteringongoingexpensestotaltobebornebyoptoutcustomers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNonstandardmeteringservicecosttotaltobebornebyoptoutcustomers" name="PublicUtilitiesNonstandardmeteringservicecosttotaltobebornebyoptoutcustomers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberOfComplianceAlternatives" name="PublicUtilitiesNumberOfComplianceAlternatives" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberOfMegaWattsOfSolarPhotovoltaicCapacity" name="PublicUtilitiesNumberOfMegaWattsOfSolarPhotovoltaicCapacity" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberOfStatesToAddressRegionalHaze" name="PublicUtilitiesNumberOfStatesToAddressRegionalHaze" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberofAdditionalSignatories" name="PublicUtilitiesNumberofAdditionalSignatories" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberofMegaWattsofSolarPhotovoltaicCapacityCurrentOutput" name="PublicUtilitiesNumberofMegaWattsofSolarPhotovoltaicCapacityCurrentOutput" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity" name="PublicUtilitiesNumberofMegaWattsofWindEnergyCapacity" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesNumberofMegawatthoursofRenewableEnergyCertificatestobeacquiredandretiredbeginningJan2020" name="PublicUtilitiesNumberofMegawatthoursofRenewableEnergyCertificatestobeacquiredandretiredbeginningJan2020" nillable="true" substitutionGroup="xbrli:item" type="num:energyItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberofMegawattsNuclearGeneration" name="PublicUtilitiesNumberofMegawattsNuclearGeneration" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberofRequestedRates" name="PublicUtilitiesNumberofRequestedRates" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberofadvancedmetersinstalled" name="PublicUtilitiesNumberofadvancedmetersinstalled" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberofannualinstallmentpayments" name="PublicUtilitiesNumberofannualinstallmentpayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberofleasesunderwhichassetswerepurchased" name="PublicUtilitiesNumberofleasesunderwhichassetswerepurchased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberofleasesunderwhichleasetermwasextended" name="PublicUtilitiesNumberofleasesunderwhichleasetermwasextended" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesNumberofotherowner" name="PublicUtilitiesNumberofotherowner" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesOwnershipPercentage" name="PublicUtilitiesOwnershipPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesOwnershipPercentageInNuclearReactor" name="PublicUtilitiesOwnershipPercentageInNuclearReactor" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesPNMShareEstimatedUnderpaidSurfaceMiningRoyaltiesunderproposedratechange" name="PublicUtilitiesPNMShareEstimatedUnderpaidSurfaceMiningRoyaltiesunderproposedratechange" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesPeriodoftimeagreedtobyallpartiestosettleratecase" name="PublicUtilitiesPeriodoftimeagreedtobyallpartiestosettleratecase" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesPlanningPeriodCoveredOfIrp" name="PublicUtilitiesPlanningPeriodCoveredOfIrp" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesPlantRequirementtoMeetNOxemissionsLimit" name="PublicUtilitiesPlantRequirementtoMeetNOxemissionsLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesPlantRequirementtoMeetOpacityLimitPercentage" name="PublicUtilitiesPlantRequirementtoMeetOpacityLimitPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesPotentialAcquisitionofOwnershipinMegawatts" name="PublicUtilitiesPotentialAcquisitionofOwnershipinMegawatts" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesPotentialtoemittonsperyearofvisibilityimpairingpollutionmaximum" name="PublicUtilitiesPotentialtoemittonsperyearofvisibilityimpairingpollutionmaximum" nillable="true" substitutionGroup="xbrli:item" type="num:massItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesProfitincentiveslidingscalemultiplier" name="PublicUtilitiesProfitincentiveslidingscalemultiplier" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesProgramCostsRelatedToEnergyEfficiency" name="PublicUtilitiesProgramCostsRelatedToEnergyEfficiency" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesPropertyPlantAndEquipmentInServiceNet" name="PublicUtilitiesPropertyPlantAndEquipmentInServiceNet" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesProposedGovernmentStandardEmissionLimit" name="PublicUtilitiesProposedGovernmentStandardEmissionLimit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesProposedIncreaseDecreaseinRegulatedOperatingRevenue" name="PublicUtilitiesProposedIncreaseDecreaseinRegulatedOperatingRevenue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesProposedRetroactiveSurfaceMiningRoyaltyRate" name="PublicUtilitiesProposedRetroactiveSurfaceMiningRoyaltyRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesProposedTermtoProvideCustomerswithBenefitsRelatedtoReductioninStateCorporateIncomeTaxRate" name="PublicUtilitiesProposedTermtoProvideCustomerswithBenefitsRelatedtoReductioninStateCorporateIncomeTaxRate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesProvideWaterforPeriodofTime" name="PublicUtilitiesProvideWaterforPeriodofTime" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesProvideWatertoNumberofCities" name="PublicUtilitiesProvideWatertoNumberofCities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesReasonableCostThreshold" name="PublicUtilitiesReasonableCostThreshold" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesRecoveryPercentageofEstimatedundepreciatedvalueat123117" name="PublicUtilitiesRecoveryPercentageofEstimatedundepreciatedvalueat123117" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesRegulatoryDisallowancecapitalimprovements" name="PublicUtilitiesRegulatoryDisallowancecapitalimprovements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesRegulatorydisallowanceLeaseAbandonmentcosts" name="PublicUtilitiesRegulatorydisallowanceLeaseAbandonmentcosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesRenewableEnergyProcurementPlanProposedRecoveryAmount" name="PublicUtilitiesRenewableEnergyProcurementPlanProposedRecoveryAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesRenewableEnergyProcurementPlanRequestedAdditionalMegawattHoursYear1" name="PublicUtilitiesRenewableEnergyProcurementPlanRequestedAdditionalMegawattHoursYear1" nillable="true" substitutionGroup="xbrli:item" type="num:energyItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesRenewableEnergyProcurementPlanRequestedAdditionalMegawattHoursYear2" name="PublicUtilitiesRenewableEnergyProcurementPlanRequestedAdditionalMegawattHoursYear2" nillable="true" substitutionGroup="xbrli:item" type="num:energyItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesRenewableEnergyProcurementPlanRequestedSolarFacilityConstructionMegawatts" name="PublicUtilitiesRenewableEnergyProcurementPlanRequestedSolarFacilityConstructionMegawatts" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesRequestedRateincreaseDecreaseBalancedDraftTechnologyCostRecovery" name="PublicUtilitiesRequestedRateincreaseDecreaseBalancedDraftTechnologyCostRecovery" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesRequestedRateincreaseDecreasenonfuelamount" name="PublicUtilitiesRequestedRateincreaseDecreasenonfuelamount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesRequiredPercentageOfDiversification" name="PublicUtilitiesRequiredPercentageOfDiversification" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesRequiredPercentageOfRenewableEnergyInPortfolioToElectricSales" name="PublicUtilitiesRequiredPercentageOfRenewableEnergyInPortfolioToElectricSales" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesReturnonEquityRegulatoryDisallowance" name="PublicUtilitiesReturnonEquityRegulatoryDisallowance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesRevenueForPowerSoldUnderSpecificContract" name="PublicUtilitiesRevenueForPowerSoldUnderSpecificContract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_PublicUtilitiesRevenueStreamAxis" name="PublicUtilitiesRevenueStreamAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_PublicUtilitiesRevenueStreamDomain" name="PublicUtilitiesRevenueStreamDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesRevenuefromRenewableenergyrider" name="PublicUtilitiesRevenuefromRenewableenergyrider" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesRevisedSO2EmissionsAgreedUpon" name="PublicUtilitiesRevisedSO2EmissionsAgreedUpon" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesRuleImposesOpacityLimitationOnCertainFugitiveDustEmissionsFromCoalAndMaterialHandlingOperations" name="PublicUtilitiesRuleImposesOpacityLimitationOnCertainFugitiveDustEmissionsFromCoalAndMaterialHandlingOperations" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesSolargenerationcapacityinMegawatts" name="PublicUtilitiesSolargenerationcapacityinMegawatts" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesSolargenerationcapacityinMegawattscurrentconstruction" name="PublicUtilitiesSolargenerationcapacityinMegawattscurrentconstruction" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PublicUtilitiesTimePeriodtoRecoverRetiredUnitsremainingNBV" name="PublicUtilitiesTimePeriodtoRecoverRetiredUnitsremainingNBV" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_PublicUtilitiesexcessreturnonjurisdictionalequitythatwouldrequirerefund" name="PublicUtilitiesexcessreturnonjurisdictionalequitythatwouldrequirerefund" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="pnm_PurchasePriceofLeasedAssetPaid" name="PurchasePriceofLeasedAssetPaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_PurchasedThroughMay302028Member" name="PurchasedThroughMay302028Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_RatioOfDebtToCapitalMaximum" name="RatioOfDebtToCapitalMaximum" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_ReclamationTrustFundingCurrentfiscalyear" name="ReclamationTrustFundingCurrentfiscalyear" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="pnm_ReclamationTrustFundingYear2" name="ReclamationTrustFundingYear2" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="pnm_ReclamationTrustFundingYear3" name="ReclamationTrustFundingYear3" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pnm_ReevesstationMember" name="ReevesstationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_RefinedCoalMember" name="RefinedCoalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_RegulatoryAndRateMattersTextBlock" name="RegulatoryAndRateMattersTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_RegulatoryDisallowance" name="RegulatoryDisallowance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pnm_RegulatoryDisallowanceAdditionalamountrecorded" name="RegulatoryDisallowanceAdditionalamountrecorded" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_RegulatoryRateMattersDomain" name="RegulatoryRateMattersDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_RelatedPartyTransactionByTransactionTypeAxis" name="RelatedPartyTransactionByTransactionTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_RelatedPartyTransactionByTransactionTypeDomain" name="RelatedPartyTransactionByTransactionTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_RenewableEnergyRiderMember" name="RenewableEnergyRiderMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_RenewablePortfolioStandard2014Member" name="RenewablePortfolioStandard2014Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_RenewablePortfolioStandardMember" name="RenewablePortfolioStandardMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_RenewablePortfolioStandardSupplementalProcurementMember" name="RenewablePortfolioStandardSupplementalProcurementMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_RenewableTechnologiesMember" name="RenewableTechnologiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_RepaymentsFromTransmissionInterconnectionArrangement" name="RepaymentsFromTransmissionInterconnectionArrangement" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_RequiredPercentageBy2011Member" name="RequiredPercentageBy2011Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_RequiredPercentageBy2015Member" name="RequiredPercentageBy2015Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_RequiredPercentageBy2020Member" name="RequiredPercentageBy2020Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_Requirementstobeimplemented" name="Requirementstobeimplemented" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="pnm_RestrictedStockAndPerformanceSharesMember" name="RestrictedStockAndPerformanceSharesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_ResultsOfOperationsVariableInterestEntityOperatingExpenses" name="ResultsOfOperationsVariableInterestEntityOperatingExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pnm_ResultsOfOperationsVariableInterestEntityOperatingRevenues" name="ResultsOfOperationsVariableInterestEntityOperatingRevenues" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="pnm_ReturnOfPrincipalOnPvngsLessorNotes" name="ReturnOfPrincipalOnPvngsLessorNotes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="pnm_RevisedAnnualFeeNuclearWasteDisposal" name="RevisedAnnualFeeNuclearWasteDisposal" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_SanJuanCoalCompanyWestmorelandMember" name="SanJuanCoalCompanyWestmorelandMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_SanJuanGeneratingStationAndFourCornersMember" name="SanJuanGeneratingStationAndFourCornersMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_SanJuanGeneratingStationMember" name="SanJuanGeneratingStationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_SanJuanGeneratingStationUnit3Member" name="SanJuanGeneratingStationUnit3Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_SanJuanGeneratingStationUnit4Member" name="SanJuanGeneratingStationUnit4Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_SanJuanGeneratingStationUnits1And4Member" name="SanJuanGeneratingStationUnits1And4Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_SanJuanGeneratingStationUnits2And3Member" name="SanJuanGeneratingStationUnits2And3Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_SantaFegeneratingstationMember" name="SantaFegeneratingstationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_ScheduleOfRegulatoryRateMattersAxis" name="ScheduleOfRegulatoryRateMattersAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_ScheduleofEnergyCapacityTransactionsTableTextBlock" name="ScheduleofEnergyCapacityTransactionsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="pnm_ScheduleofRateIncreasesforTransmissionCostsTableTextBlock" name="ScheduleofRateIncreasesforTransmissionCostsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="pnm_SeniorUnsecuredNoteAgreementSUNsPrivatePlacementTransactionwithInstitutionalInvestorsIssuanceinAugust2018InterestRateof3.78Member" name="SeniorUnsecuredNoteAgreementSUNsPrivatePlacementTransactionwithInstitutionalInvestorsIssuanceinAugust2018InterestRateof3.78Member" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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</xsd:schema>
