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    <link:label id="lab_us-gaap_IncomeStatementLocationAxis_0F1F2EFA9883B1539710AA1B7448FD4D_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationAxis_0F1F2EFA9883B1539710AA1B7448FD4D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Statement Location [Axis]</link:label>
    <link:label id="lab_us-gaap_IncomeStatementLocationAxis_0F1F2EFA9883B1539710AA1B7448FD4D_label_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationAxis_0F1F2EFA9883B1539710AA1B7448FD4D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement Location [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementLocationAxis" xlink:label="loc_us-gaap_IncomeStatementLocationAxis_0F1F2EFA9883B1539710AA1B7448FD4D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementLocationAxis_0F1F2EFA9883B1539710AA1B7448FD4D" xlink:to="lab_us-gaap_IncomeStatementLocationAxis_0F1F2EFA9883B1539710AA1B7448FD4D" xlink:type="arc" />
    <link:label id="lab_us-gaap_IncomeStatementLocationDomain_E476EFF019623E30F55FAA1B7448D766_terseLabel_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationDomain_E476EFF019623E30F55FAA1B7448D766" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Income Statement Location [Domain]</link:label>
    <link:label id="lab_us-gaap_IncomeStatementLocationDomain_E476EFF019623E30F55FAA1B7448D766_label_en-US" xlink:label="lab_us-gaap_IncomeStatementLocationDomain_E476EFF019623E30F55FAA1B7448D766" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Income Statement Location [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeStatementLocationDomain" xlink:label="loc_us-gaap_IncomeStatementLocationDomain_E476EFF019623E30F55FAA1B7448D766" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeStatementLocationDomain_E476EFF019623E30F55FAA1B7448D766" xlink:to="lab_us-gaap_IncomeStatementLocationDomain_E476EFF019623E30F55FAA1B7448D766" xlink:type="arc" />
    <link:label id="lab_nee_GainsLossesIncludedInOperatingRevenuesMember_FD94DA3C4E94CCCF64A1AA1B74489E0A_terseLabel_en-US" xlink:label="lab_nee_GainsLossesIncludedInOperatingRevenuesMember_FD94DA3C4E94CCCF64A1AA1B74489E0A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) included in operating revenues [Member]</link:label>
    <link:label id="lab_nee_GainsLossesIncludedInOperatingRevenuesMember_FD94DA3C4E94CCCF64A1AA1B74489E0A_label_en-US" xlink:label="lab_nee_GainsLossesIncludedInOperatingRevenuesMember_FD94DA3C4E94CCCF64A1AA1B74489E0A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) Included In Operating Revenues [Member]</link:label>
    <link:label id="lab_nee_GainsLossesIncludedInOperatingRevenuesMember_FD94DA3C4E94CCCF64A1AA1B74489E0A_documentation_en-US" xlink:label="lab_nee_GainsLossesIncludedInOperatingRevenuesMember_FD94DA3C4E94CCCF64A1AA1B74489E0A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This element represents a certain income statement caption "Operating Revenues".</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_GainsLossesIncludedInOperatingRevenuesMember_FD94DA3C4E94CCCF64A1AA1B74489E0A" xlink:to="lab_nee_GainsLossesIncludedInOperatingRevenuesMember_FD94DA3C4E94CCCF64A1AA1B74489E0A" xlink:type="arc" />
    <link:label id="lab_nee_GainLossIncludedInInterestExpenseMember_1795C60BE7F5D916EF2FAA1B7448695A_terseLabel_en-US" xlink:label="lab_nee_GainLossIncludedInInterestExpenseMember_1795C60BE7F5D916EF2FAA1B7448695A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain Loss Included In Interest Expense Member</link:label>
    <link:label id="lab_nee_GainLossIncludedInInterestExpenseMember_1795C60BE7F5D916EF2FAA1B7448695A_label_en-US" xlink:label="lab_nee_GainLossIncludedInInterestExpenseMember_1795C60BE7F5D916EF2FAA1B7448695A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain Loss Included In Interest Expense Member</link:label>
    <link:label id="lab_nee_GainLossIncludedInInterestExpenseMember_1795C60BE7F5D916EF2FAA1B7448695A_documentation_en-US" xlink:label="lab_nee_GainLossIncludedInInterestExpenseMember_1795C60BE7F5D916EF2FAA1B7448695A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This element represents a certain income statement caption "Interest Expense"</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_GainLossIncludedInInterestExpenseMember" xlink:label="loc_nee_GainLossIncludedInInterestExpenseMember_1795C60BE7F5D916EF2FAA1B7448695A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_GainLossIncludedInInterestExpenseMember_1795C60BE7F5D916EF2FAA1B7448695A" xlink:to="lab_nee_GainLossIncludedInInterestExpenseMember_1795C60BE7F5D916EF2FAA1B7448695A" xlink:type="arc" />
    <link:label id="lab_nee_GainsLossesIncludedInOtherNetMember_7894475CDD7720A6B363AA1B7448F1FF_terseLabel_en-US" xlink:label="lab_nee_GainsLossesIncludedInOtherNetMember_7894475CDD7720A6B363AA1B7448F1FF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (Losses) Included In Other - Net [Member]</link:label>
    <link:label id="lab_nee_GainsLossesIncludedInOtherNetMember_7894475CDD7720A6B363AA1B7448F1FF_label_en-US" xlink:label="lab_nee_GainsLossesIncludedInOtherNetMember_7894475CDD7720A6B363AA1B7448F1FF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gains (Losses) Included In Other - Net [Member]</link:label>
    <link:label id="lab_nee_GainsLossesIncludedInOtherNetMember_7894475CDD7720A6B363AA1B7448F1FF_documentation_en-US" xlink:label="lab_nee_GainsLossesIncludedInOtherNetMember_7894475CDD7720A6B363AA1B7448F1FF" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This element represents a certain income statement caption "Other-net"</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_GainsLossesIncludedInOtherNetMember" xlink:label="loc_nee_GainsLossesIncludedInOtherNetMember_7894475CDD7720A6B363AA1B7448F1FF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_GainsLossesIncludedInOtherNetMember_7894475CDD7720A6B363AA1B7448F1FF" xlink:to="lab_nee_GainsLossesIncludedInOtherNetMember_7894475CDD7720A6B363AA1B7448F1FF" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossLineItems_AAB972CD6DF49D87FFCDAA1B74499A9A_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossLineItems_AAB972CD6DF49D87FFCDAA1B74499A9A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative [Line Items]</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentsGainLossLineItems_AAB972CD6DF49D87FFCDAA1B74499A9A_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsGainLossLineItems_AAB972CD6DF49D87FFCDAA1B74499A9A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments, Gain (Loss) [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeInstrumentsGainLossLineItems" xlink:label="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_AAB972CD6DF49D87FFCDAA1B74499A9A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsGainLossLineItems_AAB972CD6DF49D87FFCDAA1B74499A9A" xlink:to="lab_us-gaap_DerivativeInstrumentsGainLossLineItems_AAB972CD6DF49D87FFCDAA1B74499A9A" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract_5CBE912B4B6EFCD7BD9AAA1B74497E22_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract_5CBE912B4B6EFCD7BD9AAA1B74497E22" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract_5CBE912B4B6EFCD7BD9AAA1B74497E22_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract_5CBE912B4B6EFCD7BD9AAA1B74497E22" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract_5CBE912B4B6EFCD7BD9AAA1B74497E22" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract_5CBE912B4B6EFCD7BD9AAA1B74497E22" xlink:to="lab_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNetAbstract_5CBE912B4B6EFCD7BD9AAA1B74497E22" xlink:type="arc" />
    <link:label id="lab_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_74D51541B6317E3F6D7AAA1B744946D4_terseLabel_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_74D51541B6317E3F6D7AAA1B744946D4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net</link:label>
    <link:label id="lab_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_74D51541B6317E3F6D7AAA1B744946D4_label_en-US" xlink:label="lab_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_74D51541B6317E3F6D7AAA1B744946D4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet" xlink:label="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_74D51541B6317E3F6D7AAA1B744946D4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_74D51541B6317E3F6D7AAA1B744946D4" xlink:to="lab_us-gaap_DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet_74D51541B6317E3F6D7AAA1B744946D4" xlink:type="arc" />
    <link:label id="lab_us-gaap_InterestExpense_7AC55A62BDB419C4E997AA1B744913F7_terseLabel_en-US" xlink:label="lab_us-gaap_InterestExpense_7AC55A62BDB419C4E997AA1B744913F7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Interest Expense</link:label>
    <link:label id="lab_us-gaap_InterestExpense_7AC55A62BDB419C4E997AA1B744913F7_label_en-US" xlink:label="lab_us-gaap_InterestExpense_7AC55A62BDB419C4E997AA1B744913F7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Interest Expense</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaap_InterestExpense_7AC55A62BDB419C4E997AA1B744913F7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_InterestExpense_7AC55A62BDB419C4E997AA1B744913F7" xlink:to="lab_us-gaap_InterestExpense_7AC55A62BDB419C4E997AA1B744913F7" xlink:type="arc" />
    <link:label id="lab_nee_GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities_6CD933EE9CAEDE172A6CAA1B744A9B62_terseLabel_en-US" xlink:label="lab_nee_GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities_6CD933EE9CAEDE172A6CAA1B744A9B62" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gains (losses) on commodity contracts, recorded as regulatory assets and or liabilities on the balance sheet due to regulatory treatment</link:label>
    <link:label id="lab_nee_GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities_6CD933EE9CAEDE172A6CAA1B744A9B62_label_en-US" xlink:label="lab_nee_GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities_6CD933EE9CAEDE172A6CAA1B744A9B62" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain (Losses) On Commodity Contracts Not Designated As Hedges Recorded As Regulatory Assets Liabilities</link:label>
    <link:label id="lab_nee_GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities_6CD933EE9CAEDE172A6CAA1B744A9B62_documentation_en-US" xlink:label="lab_nee_GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities_6CD933EE9CAEDE172A6CAA1B744A9B62" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Pursuant to regulatory accounting treatment, net gain (loss) recorded by FPL that is included in regulatory assets and or liabilities for the period from the net change in fair value of derivative instrument not designated as hedging instrument.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities" xlink:label="loc_nee_GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities_6CD933EE9CAEDE172A6CAA1B744A9B62" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities_6CD933EE9CAEDE172A6CAA1B744A9B62" xlink:to="lab_nee_GainLossesOnCommodityContractsNotDesignatedAsHedgesRecordedAsRegulatoryAssetsLiabilities_6CD933EE9CAEDE172A6CAA1B744A9B62" xlink:type="arc" />
    <link:label id="lab_us-gaap_FairValueDisclosuresAbstract_CD562DC8BD9E2F557EE49CC3CA935B65_label_en-US" xlink:label="lab_us-gaap_FairValueDisclosuresAbstract_CD562DC8BD9E2F557EE49CC3CA935B65" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Disclosures [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueDisclosuresAbstract" xlink:label="loc_us-gaap_FairValueDisclosuresAbstract_CD562DC8BD9E2F557EE49CC3CA935B65" xlink:type="locator" />
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    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_89A1515D8C5973E0CF459CC3CA9393BE_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_89A1515D8C5973E0CF459CC3CA9393BE" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Measurements, Recurring and Nonrecurring [Table]</link:label>
    <link:label id="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_89A1515D8C5973E0CF459CC3CA9393BE_label_en-US" xlink:label="lab_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_89A1515D8C5973E0CF459CC3CA9393BE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value Measurements, Recurring and Nonrecurring [Table]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_89A1515D8C5973E0CF459CC3CA9393BE" xlink:type="locator" />
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    <link:label id="lab_us-gaap_InvestmentTypeAxis_3C9A5D8F6C997189D4AE9CC3CA93C9AF_terseLabel_en-US" xlink:label="lab_us-gaap_InvestmentTypeAxis_3C9A5D8F6C997189D4AE9CC3CA93C9AF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Investment Type [Axis]</link:label>
    <link:label id="lab_us-gaap_InvestmentTypeAxis_3C9A5D8F6C997189D4AE9CC3CA93C9AF_label_en-US" xlink:label="lab_us-gaap_InvestmentTypeAxis_3C9A5D8F6C997189D4AE9CC3CA93C9AF" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Investment Type [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InvestmentTypeAxis" xlink:label="loc_us-gaap_InvestmentTypeAxis_3C9A5D8F6C997189D4AE9CC3CA93C9AF" xlink:type="locator" />
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    <link:label id="lab_nee_SpecialUseFundsStormFundAssets_0205C878AD69574432549CC3CAA30F53_label_en-US" xlink:label="lab_nee_SpecialUseFundsStormFundAssets_0205C878AD69574432549CC3CAA30F53" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Special Use Funds Storm Fund Assets</link:label>
    <link:label id="lab_nee_SpecialUseFundsStormFundAssets_0205C878AD69574432549CC3CAA30F53_documentation_en-US" xlink:label="lab_nee_SpecialUseFundsStormFundAssets_0205C878AD69574432549CC3CAA30F53" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Storm fund assets held by a regulated entity to pay for storm-related costs as incurred in future periods.</link:label>
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    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_D7F2D5512BCCCDF8E3389CC3CAA3D658_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_D7F2D5512BCCCDF8E3389CC3CAA3D658" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available for sale debt securities amortized cost</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_D7F2D5512BCCCDF8E3389CC3CAA3D658_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_D7F2D5512BCCCDF8E3389CC3CAA3D658" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Securities, Available-for-sale, Amortized Cost</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_D7F2D5512BCCCDF8E3389CC3CAA3D658" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_D7F2D5512BCCCDF8E3389CC3CAA3D658" xlink:to="lab_us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis_D7F2D5512BCCCDF8E3389CC3CAA3D658" xlink:type="arc" />
    <link:label id="lab_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis_A10A543EEC7C0BDB4A669CC3CAA357FD_terseLabel_en-US" xlink:label="lab_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis_A10A543EEC7C0BDB4A669CC3CAA357FD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Available-for-sale Equity Securities, Amortized Cost Basis</link:label>
    <link:label id="lab_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis_A10A543EEC7C0BDB4A669CC3CAA357FD_label_en-US" xlink:label="lab_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis_A10A543EEC7C0BDB4A669CC3CAA357FD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Available-for-sale Equity Securities, Amortized Cost Basis</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis" xlink:label="loc_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis_A10A543EEC7C0BDB4A669CC3CAA357FD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis_A10A543EEC7C0BDB4A669CC3CAA357FD" xlink:to="lab_us-gaap_AvailableForSaleEquitySecuritiesAmortizedCostBasis_A10A543EEC7C0BDB4A669CC3CAA357FD" xlink:type="arc" />
    <link:label id="lab_nee_Marketablesecuritiesunrealizedgainlossonsecuritiesstillheld_13B4749A0C2F790A8C4B9CC3CAA393D7_terseLabel_en-US" xlink:label="lab_nee_Marketablesecuritiesunrealizedgainlossonsecuritiesstillheld_13B4749A0C2F790A8C4B9CC3CAA393D7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">marketable securities, unrealized gain (loss) on securities still held</link:label>
    <link:label id="lab_nee_Marketablesecuritiesunrealizedgainlossonsecuritiesstillheld_13B4749A0C2F790A8C4B9CC3CAA393D7_label_en-US" xlink:label="lab_nee_Marketablesecuritiesunrealizedgainlossonsecuritiesstillheld_13B4749A0C2F790A8C4B9CC3CAA393D7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">marketable securities, unrealized gain (loss) on securities still held</link:label>
    <link:label id="lab_nee_Marketablesecuritiesunrealizedgainlossonsecuritiesstillheld_13B4749A0C2F790A8C4B9CC3CAA393D7_documentation_en-US" xlink:label="lab_nee_Marketablesecuritiesunrealizedgainlossonsecuritiesstillheld_13B4749A0C2F790A8C4B9CC3CAA393D7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">marketable securities, unrealized gain (loss) on securities still held</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_Marketablesecuritiesunrealizedgainlossonsecuritiesstillheld" xlink:label="loc_nee_Marketablesecuritiesunrealizedgainlossonsecuritiesstillheld_13B4749A0C2F790A8C4B9CC3CAA393D7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_Marketablesecuritiesunrealizedgainlossonsecuritiesstillheld_13B4749A0C2F790A8C4B9CC3CAA393D7" xlink:to="lab_nee_Marketablesecuritiesunrealizedgainlossonsecuritiesstillheld_13B4749A0C2F790A8C4B9CC3CAA393D7" xlink:type="arc" />
    <link:label id="lab_nee_SpecialUseFundsStormFundWeightedAverageMaturity_3DBBDC3A2B50104D24839CC3CAA34229_terseLabel_en-US" xlink:label="lab_nee_SpecialUseFundsStormFundWeightedAverageMaturity_3DBBDC3A2B50104D24839CC3CAA34229" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value Assumptions, Expected Term</link:label>
    <link:label id="lab_nee_SpecialUseFundsStormFundWeightedAverageMaturity_3DBBDC3A2B50104D24839CC3CAA34229_label_en-US" xlink:label="lab_nee_SpecialUseFundsStormFundWeightedAverageMaturity_3DBBDC3A2B50104D24839CC3CAA34229" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Special Use Funds Storm Fund Weighted Average Maturity</link:label>
    <link:label id="lab_nee_SpecialUseFundsStormFundWeightedAverageMaturity_3DBBDC3A2B50104D24839CC3CAA34229_documentation_en-US" xlink:label="lab_nee_SpecialUseFundsStormFundWeightedAverageMaturity_3DBBDC3A2B50104D24839CC3CAA34229" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This item represents the weighted-average maturity of debt securities (in years) held by a regulated entity in the storm fund at the balance sheet date and which are categorized neither as held-to-maturity nor trading securities.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_SpecialUseFundsStormFundWeightedAverageMaturity" xlink:label="loc_nee_SpecialUseFundsStormFundWeightedAverageMaturity_3DBBDC3A2B50104D24839CC3CAA34229" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_SpecialUseFundsStormFundWeightedAverageMaturity_3DBBDC3A2B50104D24839CC3CAA34229" xlink:to="lab_nee_SpecialUseFundsStormFundWeightedAverageMaturity_3DBBDC3A2B50104D24839CC3CAA34229" xlink:type="arc" />
    <link:label id="lab_nee_StormFundIncludedInSpecialUseFunds_DF89BA1AA0A1D05E4FDF9EB74CF2F83D_terseLabel_en-US" xlink:label="lab_nee_StormFundIncludedInSpecialUseFunds_DF89BA1AA0A1D05E4FDF9EB74CF2F83D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Storm Fund Included In Special Use Funds</link:label>
    <link:label id="lab_nee_StormFundIncludedInSpecialUseFunds_DF89BA1AA0A1D05E4FDF9EB74CF2F83D_label_en-US" xlink:label="lab_nee_StormFundIncludedInSpecialUseFunds_DF89BA1AA0A1D05E4FDF9EB74CF2F83D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Storm Fund Included In Special Use Funds</link:label>
    <link:label id="lab_nee_StormFundIncludedInSpecialUseFunds_DF89BA1AA0A1D05E4FDF9EB74CF2F83D_documentation_en-US" xlink:label="lab_nee_StormFundIncludedInSpecialUseFunds_DF89BA1AA0A1D05E4FDF9EB74CF2F83D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">For FPL, the amount of storm funded included in special use funds on Consolidated Balance Sheets.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_StormFundIncludedInSpecialUseFunds" xlink:label="loc_nee_StormFundIncludedInSpecialUseFunds_DF89BA1AA0A1D05E4FDF9EB74CF2F83D" xlink:type="locator" />
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    <link:label id="lab_us-gaap_DebtDisclosureAbstract_2D185AFA63B67CEB077CAA1B731F4154_label_en-US" xlink:label="lab_us-gaap_DebtDisclosureAbstract_2D185AFA63B67CEB077CAA1B731F4154" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Debt Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DebtDisclosureAbstract" xlink:label="loc_us-gaap_DebtDisclosureAbstract_2D185AFA63B67CEB077CAA1B731F4154" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DebtDisclosureAbstract_2D185AFA63B67CEB077CAA1B731F4154" xlink:to="lab_us-gaap_DebtDisclosureAbstract_2D185AFA63B67CEB077CAA1B731F4154" xlink:type="arc" />
    <link:label id="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_EADE6FF922F175B61F2EAA1B731FF84B_terseLabel_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_EADE6FF922F175B61F2EAA1B731FF84B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term debt issuances and borrowings</link:label>
    <link:label id="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_EADE6FF922F175B61F2EAA1B731FF84B_label_en-US" xlink:label="lab_us-gaap_ScheduleOfDebtInstrumentsTextBlock_EADE6FF922F175B61F2EAA1B731FF84B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Schedule of Long-term Debt Instruments [Table Text Block]</link:label>
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    <link:label id="lab_nee_InsuranceTable_640C7CA01288BB6FD22AAA1B71F5B46B_terseLabel_en-US" xlink:label="lab_nee_InsuranceTable_640C7CA01288BB6FD22AAA1B71F5B46B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insurance [Table]</link:label>
    <link:label id="lab_nee_InsuranceTable_640C7CA01288BB6FD22AAA1B71F5B46B_label_en-US" xlink:label="lab_nee_InsuranceTable_640C7CA01288BB6FD22AAA1B71F5B46B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Insurance [Table]</link:label>
    <link:label id="lab_nee_InsuranceTable_640C7CA01288BB6FD22AAA1B71F5B46B_documentation_en-US" xlink:label="lab_nee_InsuranceTable_640C7CA01288BB6FD22AAA1B71F5B46B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Insurance [Table]</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_InsuranceTable" xlink:label="loc_nee_InsuranceTable_640C7CA01288BB6FD22AAA1B71F5B46B" xlink:type="locator" />
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    <link:label id="lab_nee_InsuranceByNuclearPowerPlantAxis_D5949C149ACD299031A9AA1B71F58C59_terseLabel_en-US" xlink:label="lab_nee_InsuranceByNuclearPowerPlantAxis_D5949C149ACD299031A9AA1B71F58C59" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insurance By Nuclear Power Plant [Axis]</link:label>
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    <link:label id="lab_nee_InsuranceByNuclearPowerPlantAxis_D5949C149ACD299031A9AA1B71F58C59_documentation_en-US" xlink:label="lab_nee_InsuranceByNuclearPowerPlantAxis_D5949C149ACD299031A9AA1B71F58C59" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule of potential retrospective assessment recoverable from minority interest for nuclear liability secondary financial protection and potential retrospective assessment recoverable from minority interest for property damage, decontamination and premature decommissioning risks, plus any applicable taxes, by nuclear power plant.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_InsuranceByNuclearPowerPlantAxis" xlink:label="loc_nee_InsuranceByNuclearPowerPlantAxis_D5949C149ACD299031A9AA1B71F58C59" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_InsuranceByNuclearPowerPlantAxis_D5949C149ACD299031A9AA1B71F58C59" xlink:to="lab_nee_InsuranceByNuclearPowerPlantAxis_D5949C149ACD299031A9AA1B71F58C59" xlink:type="arc" />
    <link:label id="lab_nee_InsuranceNuclearPowerPlantDomain_8EFD5E7E4F58EE561933AA1B71F50CFD_terseLabel_en-US" xlink:label="lab_nee_InsuranceNuclearPowerPlantDomain_8EFD5E7E4F58EE561933AA1B71F50CFD" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Insurance Nuclear Power Plant [Domain]</link:label>
    <link:label id="lab_nee_InsuranceNuclearPowerPlantDomain_8EFD5E7E4F58EE561933AA1B71F50CFD_label_en-US" xlink:label="lab_nee_InsuranceNuclearPowerPlantDomain_8EFD5E7E4F58EE561933AA1B71F50CFD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Insurance Nuclear Power Plant [Domain]</link:label>
    <link:label id="lab_nee_InsuranceNuclearPowerPlantDomain_8EFD5E7E4F58EE561933AA1B71F50CFD_documentation_en-US" xlink:label="lab_nee_InsuranceNuclearPowerPlantDomain_8EFD5E7E4F58EE561933AA1B71F50CFD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Schedule of potential retrospective assessment recoverable from minority interest for nuclear liability secondary financial protection and potential retrospective assessment recoverable from minority interest for property damage, decontamination and premature decommissioning risks, plus any applicable taxes, identified by nuclear power plant.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_InsuranceNuclearPowerPlantDomain" xlink:label="loc_nee_InsuranceNuclearPowerPlantDomain_8EFD5E7E4F58EE561933AA1B71F50CFD" xlink:type="locator" />
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    <link:label id="lab_nee_SeabrookStationInsuranceMember_AD6AED1143F586913B79AA1B71F60310_terseLabel_en-US" xlink:label="lab_nee_SeabrookStationInsuranceMember_AD6AED1143F586913B79AA1B71F60310" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Seabrook Station Insurance [Member]</link:label>
    <link:label id="lab_nee_SeabrookStationInsuranceMember_AD6AED1143F586913B79AA1B71F60310_label_en-US" xlink:label="lab_nee_SeabrookStationInsuranceMember_AD6AED1143F586913B79AA1B71F60310" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Seabrook Station Insurance [Member]</link:label>
    <link:label id="lab_nee_SeabrookStationInsuranceMember_AD6AED1143F586913B79AA1B71F60310_documentation_en-US" xlink:label="lab_nee_SeabrookStationInsuranceMember_AD6AED1143F586913B79AA1B71F60310" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Seabrook Station's proportionate share of retrospective insurance assessments.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_SeabrookStationInsuranceMember" xlink:label="loc_nee_SeabrookStationInsuranceMember_AD6AED1143F586913B79AA1B71F60310" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_SeabrookStationInsuranceMember_AD6AED1143F586913B79AA1B71F60310" xlink:to="lab_nee_SeabrookStationInsuranceMember_AD6AED1143F586913B79AA1B71F60310" xlink:type="arc" />
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    <link:label id="lab_nee_ElectricUtilityPlantInServiceAndOtherProperty_17DA2E91A094D8370F4889932DE23A9B_documentation_en-US" xlink:label="lab_nee_ElectricUtilityPlantInServiceAndOtherProperty_17DA2E91A094D8370F4889932DE23A9B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Carrying amount at the balance sheet date for long-lived physical assets used in the normal conduct of business and not intended for resale. This can include land, physical structures, machinery, vehicles, furniture, computer equipment, and similar items. Amount does not include construction in progress or depreciation.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_ElectricUtilityPlantInServiceAndOtherProperty" xlink:label="loc_nee_ElectricUtilityPlantInServiceAndOtherProperty_17DA2E91A094D8370F4889932DE23A9B" xlink:type="locator" />
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    <link:label id="lab_nee_NuclearFuel_5ACFC52E1E9F0FE6C8E089932DE2B2D9_verboseLabel_en-US" xlink:label="lab_nee_NuclearFuel_5ACFC52E1E9F0FE6C8E089932DE2B2D9" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Nuclear fuel</link:label>
    <link:label id="lab_nee_NuclearFuel_5ACFC52E1E9F0FE6C8E089932DE2B2D9_label_en-US" xlink:label="lab_nee_NuclearFuel_5ACFC52E1E9F0FE6C8E089932DE2B2D9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Nuclear Fuel</link:label>
    <link:label id="lab_nee_NuclearFuel_5ACFC52E1E9F0FE6C8E089932DE2B2D9_documentation_en-US" xlink:label="lab_nee_NuclearFuel_5ACFC52E1E9F0FE6C8E089932DE2B2D9" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The carrying amount, at gross, as of the balance sheet of nuclear fuel held as property plant and equipment.</link:label>
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    <link:label id="lab_us-gaap_ConstructionInProgressGross_CEECA06346E98470510889932DE301A3_verboseLabel_en-US" xlink:label="lab_us-gaap_ConstructionInProgressGross_CEECA06346E98470510889932DE301A3" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Construction work in progress</link:label>
    <link:label id="lab_us-gaap_ConstructionInProgressGross_CEECA06346E98470510889932DE301A3_label_en-US" xlink:label="lab_us-gaap_ConstructionInProgressGross_CEECA06346E98470510889932DE301A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Construction in Progress, Gross</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConstructionInProgressGross" xlink:label="loc_us-gaap_ConstructionInProgressGross_CEECA06346E98470510889932DE301A3" xlink:type="locator" />
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    <link:label id="lab_nee_AccumulatedDepreciationAndAmortization_553B4E92C375528CF61389932DE3B67D_negatedLabel_en-US" xlink:label="lab_nee_AccumulatedDepreciationAndAmortization_553B4E92C375528CF61389932DE3B67D" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Accumulated depreciation and amortization</link:label>
    <link:label id="lab_nee_AccumulatedDepreciationAndAmortization_553B4E92C375528CF61389932DE3B67D_label_en-US" xlink:label="lab_nee_AccumulatedDepreciationAndAmortization_553B4E92C375528CF61389932DE3B67D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Accumulated Depreciation And Amortization</link:label>
    <link:label id="lab_nee_AccumulatedDepreciationAndAmortization_553B4E92C375528CF61389932DE3B67D_documentation_en-US" xlink:label="lab_nee_AccumulatedDepreciationAndAmortization_553B4E92C375528CF61389932DE3B67D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, including nuclear fuel, but not including land) that has been recognized in the income statement.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_AccumulatedDepreciationAndAmortization" xlink:label="loc_nee_AccumulatedDepreciationAndAmortization_553B4E92C375528CF61389932DE3B67D" xlink:type="locator" />
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    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_799B48497F152CC8C48989932DE3307F_totalLabel_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_799B48497F152CC8C48989932DE3307F" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total property, plant and equipment - net</link:label>
    <link:label id="lab_us-gaap_PropertyPlantAndEquipmentNet_799B48497F152CC8C48989932DE3307F_label_en-US" xlink:label="lab_us-gaap_PropertyPlantAndEquipmentNet_799B48497F152CC8C48989932DE3307F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Property, Plant and Equipment, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_799B48497F152CC8C48989932DE3307F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_799B48497F152CC8C48989932DE3307F" xlink:to="lab_us-gaap_PropertyPlantAndEquipmentNet_799B48497F152CC8C48989932DE3307F" xlink:type="arc" />
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_CE077CDB00E8999C68DC89932DE36266_terseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_CE077CDB00E8999C68DC89932DE36266" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">ELECTRIC UTILITY PLANT AND OTHER PROPERTY</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_CE077CDB00E8999C68DC89932DE36266_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_CE077CDB00E8999C68DC89932DE36266" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Public Utilities, Property, Plant and Equipment, Net [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_CE077CDB00E8999C68DC89932DE36266" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_CE077CDB00E8999C68DC89932DE36266" xlink:to="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNetAbstract_CE077CDB00E8999C68DC89932DE36266" xlink:type="arc" />
    <link:label id="lab_nee_PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross_22FE7C50981E986155C489932DE31756_verboseLabel_en-US" xlink:label="lab_nee_PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross_22FE7C50981E986155C489932DE31756" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Plant in service and other property</link:label>
    <link:label id="lab_nee_PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross_22FE7C50981E986155C489932DE31756_label_en-US" xlink:label="lab_nee_PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross_22FE7C50981E986155C489932DE31756" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Public Utilities, Property, Plant and Equipment Plant in service Gross</link:label>
    <link:label id="lab_nee_PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross_22FE7C50981E986155C489932DE31756_documentation_en-US" xlink:label="lab_nee_PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross_22FE7C50981E986155C489932DE31756" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Carrying amount at the balance sheet date for long-lived physical assets used in the normal conduct of business and not intended for resale. This can include land, physical structures, machinery, vehicles, furniture, computer equipment, and similar items. Amount does not include construction in progress or depreciation.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross" xlink:label="loc_nee_PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross_22FE7C50981E986155C489932DE31756" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross_22FE7C50981E986155C489932DE31756" xlink:to="lab_nee_PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceGross_22FE7C50981E986155C489932DE31756" xlink:type="arc" />
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentFuel_08EB0B0BE8F0B61EF2A989932DE42B16_verboseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentFuel_08EB0B0BE8F0B61EF2A989932DE42B16" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Nuclear fuel</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentFuel_08EB0B0BE8F0B61EF2A989932DE42B16_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentFuel_08EB0B0BE8F0B61EF2A989932DE42B16" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Public Utilities, Property, Plant and Equipment, Fuel</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentFuel" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentFuel_08EB0B0BE8F0B61EF2A989932DE42B16" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentFuel_08EB0B0BE8F0B61EF2A989932DE42B16" xlink:to="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentFuel_08EB0B0BE8F0B61EF2A989932DE42B16" xlink:type="arc" />
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_B41C70EB406697C5597889932DE4664C_verboseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_B41C70EB406697C5597889932DE4664C" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Construction work in progress</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_B41C70EB406697C5597889932DE4664C_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_B41C70EB406697C5597889932DE4664C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Public Utilities, Property, Plant and Equipment, Construction Work in Progress</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_B41C70EB406697C5597889932DE4664C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_B41C70EB406697C5597889932DE4664C" xlink:to="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress_B41C70EB406697C5597889932DE4664C" xlink:type="arc" />
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_83A045A32BB9F9E83CAE89932DE45256_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_83A045A32BB9F9E83CAE89932DE45256" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Accumulated depreciation and amortization</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_83A045A32BB9F9E83CAE89932DE45256_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_83A045A32BB9F9E83CAE89932DE45256" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Public Utilities, Property, Plant and Equipment, Accumulated Depreciation</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_83A045A32BB9F9E83CAE89932DE45256" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_83A045A32BB9F9E83CAE89932DE45256" xlink:to="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation_83A045A32BB9F9E83CAE89932DE45256" xlink:type="arc" />
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_957C352414E4BCA67E4389932DE43858_totalLabel_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_957C352414E4BCA67E4389932DE43858" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total electric utility plant and other property - net</link:label>
    <link:label id="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_957C352414E4BCA67E4389932DE43858_label_en-US" xlink:label="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_957C352414E4BCA67E4389932DE43858" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Public Utilities, Property, Plant and Equipment, Net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet" xlink:label="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_957C352414E4BCA67E4389932DE43858" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_957C352414E4BCA67E4389932DE43858" xlink:to="lab_us-gaap_PublicUtilitiesPropertyPlantAndEquipmentNet_957C352414E4BCA67E4389932DE43858" xlink:type="arc" />
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_8875EF48F2CD6116C86E89932DE4B335_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_8875EF48F2CD6116C86E89932DE4B335" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">CURRENT ASSETS</link:label>
    <link:label id="lab_us-gaap_AssetsCurrentAbstract_8875EF48F2CD6116C86E89932DE4B335_label_en-US" xlink:label="lab_us-gaap_AssetsCurrentAbstract_8875EF48F2CD6116C86E89932DE4B335" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Current [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrentAbstract" xlink:label="loc_us-gaap_AssetsCurrentAbstract_8875EF48F2CD6116C86E89932DE4B335" xlink:type="locator" />
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    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_880265817D6BA782BDC989932DE448D8_verboseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_880265817D6BA782BDC989932DE448D8" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cash and cash equivalents</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_880265817D6BA782BDC989932DE448D8_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsAtCarryingValue_880265817D6BA782BDC989932DE448D8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, at Carrying Value</link:label>
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    <link:label id="lab_nee_CapitalExpendituresOfPublicUtility_DA28390DF0A4429618A18C68C99EDE99_documentation_en-US" xlink:label="lab_nee_CapitalExpendituresOfPublicUtility_DA28390DF0A4429618A18C68C99EDE99" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The cash outflow for capital expenditures of a public utility for electric utility plant and equipment. Amount includes the allowance for borrowed funds used in construction and excludes the allowance for equity funds used during construction and excludes expenditures related to nuclear fuel, which has a separate taxonomy.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_CapitalExpendituresOfPublicUtility" xlink:label="loc_nee_CapitalExpendituresOfPublicUtility_DA28390DF0A4429618A18C68C99EDE99" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_CapitalExpendituresOfPublicUtility_DA28390DF0A4429618A18C68C99EDE99" xlink:to="lab_nee_CapitalExpendituresOfPublicUtility_DA28390DF0A4429618A18C68C99EDE99" xlink:type="arc" />
    <link:label id="lab_nee_IndependentPowerInvestments_EBE246CFB9003F4DFD1D8C68C99FFA15_negatedLabel_en-US" xlink:label="lab_nee_IndependentPowerInvestments_EBE246CFB9003F4DFD1D8C68C99FFA15" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Independent power and other investments of NEER</link:label>
    <link:label id="lab_nee_IndependentPowerInvestments_EBE246CFB9003F4DFD1D8C68C99FFA15_label_en-US" xlink:label="lab_nee_IndependentPowerInvestments_EBE246CFB9003F4DFD1D8C68C99FFA15" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Independent Power Investments</link:label>
    <link:label id="lab_nee_IndependentPowerInvestments_EBE246CFB9003F4DFD1D8C68C99FFA15_documentation_en-US" xlink:label="lab_nee_IndependentPowerInvestments_EBE246CFB9003F4DFD1D8C68C99FFA15" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The cash outflow for capital expenditures related to independent power projects of a non-utility company. Amount includes capitalized interest and spending on equity method investees accounted for under the equity method of accounting but excludes expenditures related to nuclear fuel, which has a separate taxonomy.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_IndependentPowerInvestments" xlink:label="loc_nee_IndependentPowerInvestments_EBE246CFB9003F4DFD1D8C68C99FFA15" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_IndependentPowerInvestments_EBE246CFB9003F4DFD1D8C68C99FFA15" xlink:to="lab_nee_IndependentPowerInvestments_EBE246CFB9003F4DFD1D8C68C99FFA15" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsForProceedsFromNuclearFuel_D0199CC362EDC5402C5D8C68C99F2854_negatedLabel_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromNuclearFuel_D0199CC362EDC5402C5D8C68C99F2854" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Nuclear fuel purchases</link:label>
    <link:label id="lab_us-gaap_PaymentsForProceedsFromNuclearFuel_D0199CC362EDC5402C5D8C68C99F2854_label_en-US" xlink:label="lab_us-gaap_PaymentsForProceedsFromNuclearFuel_D0199CC362EDC5402C5D8C68C99F2854" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Payments for (Proceeds from) Nuclear Fuel</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsForProceedsFromNuclearFuel" xlink:label="loc_us-gaap_PaymentsForProceedsFromNuclearFuel_D0199CC362EDC5402C5D8C68C99F2854" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsForProceedsFromNuclearFuel_D0199CC362EDC5402C5D8C68C99F2854" xlink:to="lab_us-gaap_PaymentsForProceedsFromNuclearFuel_D0199CC362EDC5402C5D8C68C99F2854" xlink:type="arc" />
    <link:label id="lab_nee_OtherCapitalExpenditures_CB9D7ED755ED21BD525B8C68C99F852F_negatedLabel_en-US" xlink:label="lab_nee_OtherCapitalExpenditures_CB9D7ED755ED21BD525B8C68C99F852F" xlink:role="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="resource" xml:lang="en-US">Other capital expenditures and other investments</link:label>
    <link:label id="lab_nee_OtherCapitalExpenditures_CB9D7ED755ED21BD525B8C68C99F852F_label_en-US" xlink:label="lab_nee_OtherCapitalExpenditures_CB9D7ED755ED21BD525B8C68C99F852F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Capital Expenditures</link:label>
    <link:label id="lab_nee_OtherCapitalExpenditures_CB9D7ED755ED21BD525B8C68C99F852F_documentation_en-US" xlink:label="lab_nee_OtherCapitalExpenditures_CB9D7ED755ED21BD525B8C68C99F852F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The cash outflow for acquisition of or capital improvements of property, plant and equipment, used to produce goods or deliver services, of the company's non reportable segments.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_OtherCapitalExpenditures" xlink:label="loc_nee_OtherCapitalExpenditures_CB9D7ED755ED21BD525B8C68C99F852F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_OtherCapitalExpenditures_CB9D7ED755ED21BD525B8C68C99F852F" xlink:to="lab_nee_OtherCapitalExpenditures_CB9D7ED755ED21BD525B8C68C99F852F" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_57597E990F87CE8132BE8C68C9A081D7_verboseLabel_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_57597E990F87CE8132BE8C68C9A081D7" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">CASH FLOWS FROM FINANCING ACTIVITIES</link:label>
    <link:label id="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_57597E990F87CE8132BE8C68C9A081D7_label_en-US" xlink:label="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_57597E990F87CE8132BE8C68C9A081D7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Net Cash Provided by (Used in) Financing Activities [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_57597E990F87CE8132BE8C68C9A081D7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_57597E990F87CE8132BE8C68C9A081D7" xlink:to="lab_us-gaap_NetCashProvidedByUsedInFinancingActivitiesAbstract_57597E990F87CE8132BE8C68C9A081D7" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_9FA952AB304417EF9AE58C68C9A177BC_verboseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_9FA952AB304417EF9AE58C68C9A177BC" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Issuances of long-term debt</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_9FA952AB304417EF9AE58C68C9A177BC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_9FA952AB304417EF9AE58C68C9A177BC" xlink:to="lab_us-gaap_ProceedsFromIssuanceOfLongTermDebt_9FA952AB304417EF9AE58C68C9A177BC" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromContributionsFromParent_69380874B1DCBDC2F5D58C68C9A25403_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromContributionsFromParent_69380874B1DCBDC2F5D58C68C9A25403" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capital contribution from NEE</link:label>
    <link:label id="lab_us-gaap_ProceedsFromContributionsFromParent_69380874B1DCBDC2F5D58C68C9A25403_label_en-US" xlink:label="lab_us-gaap_ProceedsFromContributionsFromParent_69380874B1DCBDC2F5D58C68C9A25403" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Contributions from Parent</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromContributionsFromParent" xlink:label="loc_us-gaap_ProceedsFromContributionsFromParent_69380874B1DCBDC2F5D58C68C9A25403" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromContributionsFromParent_69380874B1DCBDC2F5D58C68C9A25403" xlink:to="lab_us-gaap_ProceedsFromContributionsFromParent_69380874B1DCBDC2F5D58C68C9A25403" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromIssuanceOfCommonStock_305F87B2C02E71D5A9368C68C9A23513_verboseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromIssuanceOfCommonStock_305F87B2C02E71D5A9368C68C9A23513" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Issuances of common stock - net</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_305F87B2C02E71D5A9368C68C9A23513" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_305F87B2C02E71D5A9368C68C9A23513" xlink:to="lab_us-gaap_ProceedsFromIssuanceOfCommonStock_305F87B2C02E71D5A9368C68C9A23513" xlink:type="arc" />
    <link:label id="lab_us-gaap_PaymentsOfDividends_EB0E75AF82BF66EA59FB8C68C9A2B8CF_negatedTerseLabel_en-US" xlink:label="lab_us-gaap_PaymentsOfDividends_EB0E75AF82BF66EA59FB8C68C9A2B8CF" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Dividends</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfDividends" xlink:label="loc_us-gaap_PaymentsOfDividends_EB0E75AF82BF66EA59FB8C68C9A2B8CF" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PaymentsOfDividends_EB0E75AF82BF66EA59FB8C68C9A2B8CF" xlink:to="lab_us-gaap_PaymentsOfDividends_EB0E75AF82BF66EA59FB8C68C9A2B8CF" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_45D77DBEAF6C437B635C8C68C9A33C30_terseLabel_en-US" xlink:label="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_45D77DBEAF6C437B635C8C68C9A33C30" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">SUPPLEMENTAL SCHEDULE OF NONCASH INVESTING AND FINANCING ACTIVITIES</link:label>
    <link:label id="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_45D77DBEAF6C437B635C8C68C9A33C30_label_en-US" xlink:label="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_45D77DBEAF6C437B635C8C68C9A33C30" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract" xlink:label="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_45D77DBEAF6C437B635C8C68C9A33C30" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_45D77DBEAF6C437B635C8C68C9A33C30" xlink:to="lab_us-gaap_CashFlowNoncashInvestingAndFinancingActivitiesDisclosureAbstract_45D77DBEAF6C437B635C8C68C9A33C30" xlink:type="arc" />
    <link:label id="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_EE1841AF34B1D479DC118C68C9A38B0B_terseLabel_en-US" xlink:label="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_EE1841AF34B1D479DC118C68C9A38B0B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Accrued property additions</link:label>
    <link:label id="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_EE1841AF34B1D479DC118C68C9A38B0B_label_en-US" xlink:label="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_EE1841AF34B1D479DC118C68C9A38B0B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Expenditures Incurred but Not yet Paid</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CapitalExpendituresIncurredButNotYetPaid" xlink:label="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_EE1841AF34B1D479DC118C68C9A38B0B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_CapitalExpendituresIncurredButNotYetPaid_EE1841AF34B1D479DC118C68C9A38B0B" xlink:to="lab_us-gaap_CapitalExpendituresIncurredButNotYetPaid_EE1841AF34B1D479DC118C68C9A38B0B" xlink:type="arc" />
    <link:label id="lab_nee_IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009_22341BF380EDB4652D508C68C9A40E23_terseLabel_en-US" xlink:label="lab_nee_IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009_22341BF380EDB4652D508C68C9A40E23" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Increase in property, plant and equipment - net as a result of cash grants primarily under the Recovery Act</link:label>
    <link:label id="lab_nee_IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009_22341BF380EDB4652D508C68C9A40E23_label_en-US" xlink:label="lab_nee_IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009_22341BF380EDB4652D508C68C9A40E23" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Property, Plant, and Equipment, Net Due to Cash Grants Under American Recovery and Reinvestment Act of 2009</link:label>
    <link:label id="lab_nee_IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009_22341BF380EDB4652D508C68C9A40E23_documentation_en-US" xlink:label="lab_nee_IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009_22341BF380EDB4652D508C68C9A40E23" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Increase (Decrease) in Property, Plant, and Equipment, Net Due to Cash Grants Under American Recovery and Reinvestment Act of 2009</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009" xlink:label="loc_nee_IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009_22341BF380EDB4652D508C68C9A40E23" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009_22341BF380EDB4652D508C68C9A40E23" xlink:to="lab_nee_IncreaseDecreaseinPropertyPlantandEquipmentNetDuetoCashGrantsUnderAmericanRecoveryandReinvestmentActof2009_22341BF380EDB4652D508C68C9A40E23" xlink:type="arc" />
    <link:label id="lab_nee_Changesinpropertyplantandequipmentasaresultofasettlement_E0884EBED1E4C4A2ED808C68C9A4769D_negatedTerseLabel_en-US" xlink:label="lab_nee_Changesinpropertyplantandequipmentasaresultofasettlement_E0884EBED1E4C4A2ED808C68C9A4769D" xlink:role="http://www.xbrl.org/2009/role/negatedTerseLabel" xlink:type="resource" xml:lang="en-US">Decrease (increase) in property, plant and equipment - net as a result of a settlement/noncash exchange</link:label>
    <link:label id="lab_nee_Changesinpropertyplantandequipmentasaresultofasettlement_E0884EBED1E4C4A2ED808C68C9A4769D_label_en-US" xlink:label="lab_nee_Changesinpropertyplantandequipmentasaresultofasettlement_E0884EBED1E4C4A2ED808C68C9A4769D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Changes in property, plant and equipment as a result of a settlement</link:label>
    <link:label id="lab_nee_Changesinpropertyplantandequipmentasaresultofasettlement_E0884EBED1E4C4A2ED808C68C9A4769D_documentation_en-US" xlink:label="lab_nee_Changesinpropertyplantandequipmentasaresultofasettlement_E0884EBED1E4C4A2ED808C68C9A4769D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Changes in property, plant and equipment as a result of a settlement or noncash exchange</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_Changesinpropertyplantandequipmentasaresultofasettlement" xlink:label="loc_nee_Changesinpropertyplantandequipmentasaresultofasettlement_E0884EBED1E4C4A2ED808C68C9A4769D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_Changesinpropertyplantandequipmentasaresultofasettlement_E0884EBED1E4C4A2ED808C68C9A4769D" xlink:to="lab_nee_Changesinpropertyplantandequipmentasaresultofasettlement_E0884EBED1E4C4A2ED808C68C9A4769D" xlink:type="arc" />
    <link:label id="lab_nee_CapitalContributionOfSubsidiary_C020502D4C81E374A06C8C68C9A4E6B1_terseLabel_en-US" xlink:label="lab_nee_CapitalContributionOfSubsidiary_C020502D4C81E374A06C8C68C9A4E6B1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">NEE's noncash contribution of a consolidated subsidiary - net</link:label>
    <link:label id="lab_nee_CapitalContributionOfSubsidiary_C020502D4C81E374A06C8C68C9A4E6B1_label_en-US" xlink:label="lab_nee_CapitalContributionOfSubsidiary_C020502D4C81E374A06C8C68C9A4E6B1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capital Contribution Of Subsidiary</link:label>
    <link:label id="lab_nee_CapitalContributionOfSubsidiary_C020502D4C81E374A06C8C68C9A4E6B1_documentation_en-US" xlink:label="lab_nee_CapitalContributionOfSubsidiary_C020502D4C81E374A06C8C68C9A4E6B1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Capital Contribution Of Subsidiary</link:label>
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    <link:label id="lab_nee_IndirectWhollyOwnedSubsidiaryMember_E76700E36E7EB75C06F688A6A8E7AB86_documentation_en-US" xlink:label="lab_nee_IndirectWhollyOwnedSubsidiaryMember_E76700E36E7EB75C06F688A6A8E7AB86" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Indirect Wholly-Owned Subsidiary [Member]</link:label>
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    <link:label id="lab_us-gaap_SubsidiarySaleOfStockLineItems_BD7950A69BE7268056C988A6A8E739E8_terseLabel_en-US" xlink:label="lab_us-gaap_SubsidiarySaleOfStockLineItems_BD7950A69BE7268056C988A6A8E739E8" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Subsidiary, Sale of Stock [Line Items]</link:label>
    <link:label id="lab_us-gaap_SubsidiarySaleOfStockLineItems_BD7950A69BE7268056C988A6A8E739E8_label_en-US" xlink:label="lab_us-gaap_SubsidiarySaleOfStockLineItems_BD7950A69BE7268056C988A6A8E739E8" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Subsidiary, Sale of Stock [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SubsidiarySaleOfStockLineItems" xlink:label="loc_us-gaap_SubsidiarySaleOfStockLineItems_BD7950A69BE7268056C988A6A8E739E8" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_SubsidiarySaleOfStockLineItems_BD7950A69BE7268056C988A6A8E739E8" xlink:to="lab_us-gaap_SubsidiarySaleOfStockLineItems_BD7950A69BE7268056C988A6A8E739E8" xlink:type="arc" />
    <link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_88A551CA05559EA3F62888A6A8E7C1A4_terseLabel_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_88A551CA05559EA3F62888A6A8E7C1A4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted cash and cash equivalents, current</link:label>
    <link:label id="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_88A551CA05559EA3F62888A6A8E7C1A4_label_en-US" xlink:label="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_88A551CA05559EA3F62888A6A8E7C1A4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Restricted Cash and Cash Equivalents, Current</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue" xlink:label="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_88A551CA05559EA3F62888A6A8E7C1A4" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_88A551CA05559EA3F62888A6A8E7C1A4" xlink:to="lab_us-gaap_RestrictedCashAndCashEquivalentsAtCarryingValue_88A551CA05559EA3F62888A6A8E7C1A4" xlink:type="arc" />
    <link:label id="lab_nee_Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeinstruments_3EA54924BC6AA4CBB7A488A6A8E7004D_terseLabel_en-US" xlink:label="lab_nee_Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeinstruments_3EA54924BC6AA4CBB7A488A6A8E7004D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Restricted cash related to margin cash collateral that is netted against derivative instruments</link:label>
    <link:label id="lab_nee_Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeinstruments_3EA54924BC6AA4CBB7A488A6A8E7004D_label_en-US" xlink:label="lab_nee_Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeinstruments_3EA54924BC6AA4CBB7A488A6A8E7004D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">restricted cash related to margin cash collateral that is netted against derivative instruments</link:label>
    <link:label id="lab_nee_Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeinstruments_3EA54924BC6AA4CBB7A488A6A8E7004D_documentation_en-US" xlink:label="lab_nee_Restrictedcashrelatedtomargincashcollateralthatisnettedagainstderivativeinstruments_3EA54924BC6AA4CBB7A488A6A8E7004D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Where offsetting positions exist, restricted cash related to margin cash collateral that is netted against derivative instruments</link:label>
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    <link:label id="lab_us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1_ED848BBB7A0B24EC22CD88A6A8E7AA9D_verboseLabel_en-US" xlink:label="lab_us-gaap_CumulativeEffectOnRetainedEarningsNetOfTax1_ED848BBB7A0B24EC22CD88A6A8E7AA9D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Cumulative effect on retained earnings, after tax</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CumulativeEffectOnRetainedEarningsBeforeTax1" xlink:label="loc_us-gaap_CumulativeEffectOnRetainedEarningsBeforeTax1_B1F703A888239F24817888A6A8E7C055" xlink:type="locator" />
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    <link:label id="lab_nee_NumberOfGenerationFacilitiesSold_775537BC6832961B416D88A6A8E7B604_documentation_en-US" xlink:label="lab_nee_NumberOfGenerationFacilitiesSold_775537BC6832961B416D88A6A8E7B604" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Number Of Generation Facilities Sold</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_NumberOfGenerationFacilitiesSold" xlink:label="loc_nee_NumberOfGenerationFacilitiesSold_775537BC6832961B416D88A6A8E7B604" xlink:type="locator" />
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    <link:label id="lab_nee_GeneratingFacilityCapacity_52F00D3779F513A60BCF88A6A8E7FAB1_documentation_en-US" xlink:label="lab_nee_GeneratingFacilityCapacity_52F00D3779F513A60BCF88A6A8E7FAB1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Generating Facility Capacity</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_GeneratingFacilityCapacity" xlink:label="loc_nee_GeneratingFacilityCapacity_52F00D3779F513A60BCF88A6A8E7FAB1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_GeneratingFacilityCapacity_52F00D3779F513A60BCF88A6A8E7FAB1" xlink:to="lab_nee_GeneratingFacilityCapacity_52F00D3779F513A60BCF88A6A8E7FAB1" xlink:type="arc" />
    <link:label id="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_9333AF18C42321BA218088A6A8E71BEA_terseLabel_en-US" xlink:label="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_9333AF18C42321BA218088A6A8E71BEA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Purchase price</link:label>
    <link:label id="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_9333AF18C42321BA218088A6A8E71BEA_label_en-US" xlink:label="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_9333AF18C42321BA218088A6A8E71BEA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposal Group, Including Discontinued Operation, Consideration</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_9333AF18C42321BA218088A6A8E71BEA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_9333AF18C42321BA218088A6A8E71BEA" xlink:to="lab_us-gaap_DisposalGroupIncludingDiscontinuedOperationConsideration_9333AF18C42321BA218088A6A8E71BEA" xlink:type="arc" />
    <link:label id="lab_nee_DisposalGroupIncludingDiscontinuedOperationConsiderationAssumptionOfNoncontrollingInterest_DC19C6AF6A0597ADC30788A6A8E729CA_terseLabel_en-US" xlink:label="lab_nee_DisposalGroupIncludingDiscontinuedOperationConsiderationAssumptionOfNoncontrollingInterest_DC19C6AF6A0597ADC30788A6A8E729CA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Existing noncontrolling interests</link:label>
    <link:label id="lab_nee_DisposalGroupIncludingDiscontinuedOperationConsiderationAssumptionOfNoncontrollingInterest_DC19C6AF6A0597ADC30788A6A8E729CA_label_en-US" xlink:label="lab_nee_DisposalGroupIncludingDiscontinuedOperationConsiderationAssumptionOfNoncontrollingInterest_DC19C6AF6A0597ADC30788A6A8E729CA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Disposal Group, Including Discontinued Operation, Consideration, Assumption Of Noncontrolling Interest</link:label>
    <link:label id="lab_nee_DisposalGroupIncludingDiscontinuedOperationConsiderationAssumptionOfNoncontrollingInterest_DC19C6AF6A0597ADC30788A6A8E729CA_documentation_en-US" xlink:label="lab_nee_DisposalGroupIncludingDiscontinuedOperationConsiderationAssumptionOfNoncontrollingInterest_DC19C6AF6A0597ADC30788A6A8E729CA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Disposal Group, Including Discontinued Operation, Consideration, Assumption Of Noncontrolling Interest</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_DisposalGroupIncludingDiscontinuedOperationConsiderationAssumptionOfNoncontrollingInterest" xlink:label="loc_nee_DisposalGroupIncludingDiscontinuedOperationConsiderationAssumptionOfNoncontrollingInterest_DC19C6AF6A0597ADC30788A6A8E729CA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_DisposalGroupIncludingDiscontinuedOperationConsiderationAssumptionOfNoncontrollingInterest_DC19C6AF6A0597ADC30788A6A8E729CA" xlink:to="lab_nee_DisposalGroupIncludingDiscontinuedOperationConsiderationAssumptionOfNoncontrollingInterest_DC19C6AF6A0597ADC30788A6A8E729CA" xlink:type="arc" />
    <link:label id="lab_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_635D34266A304A0D333988A6A8E74787_terseLabel_en-US" xlink:label="lab_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_635D34266A304A0D333988A6A8E74787" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Liabilities associated with assets held for sale</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_635D34266A304A0D333988A6A8E74787" xlink:type="locator" />
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    <link:label id="lab_us-gaap_AdditionalPaidInCapital_B9CB2C81F78E5C90363F88A6A8E73151_terseLabel_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapital_B9CB2C81F78E5C90363F88A6A8E73151" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Additional paid in capital</link:label>
    <link:label id="lab_us-gaap_AdditionalPaidInCapital_B9CB2C81F78E5C90363F88A6A8E73151_label_en-US" xlink:label="lab_us-gaap_AdditionalPaidInCapital_B9CB2C81F78E5C90363F88A6A8E73151" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Additional Paid in Capital</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaap_AdditionalPaidInCapital_B9CB2C81F78E5C90363F88A6A8E73151" xlink:type="locator" />
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_IncomeLossAttributableToNoncontrollingInterest_136C43F4B820A17035D988A6A8E73EC0" xlink:to="lab_us-gaap_IncomeLossAttributableToNoncontrollingInterest_136C43F4B820A17035D988A6A8E73EC0" xlink:type="arc" />
    <link:label id="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_1031963F36F2C8BF9B6288A6A8E71DEC_terseLabel_en-US" xlink:label="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_1031963F36F2C8BF9B6288A6A8E71DEC" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Net income (loss) attributable to noncontrolling interest</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLossAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_1031963F36F2C8BF9B6288A6A8E71DEC" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_1031963F36F2C8BF9B6288A6A8E71DEC" xlink:to="lab_us-gaap_NetIncomeLossAttributableToNoncontrollingInterest_1031963F36F2C8BF9B6288A6A8E71DEC" xlink:type="arc" />
    <link:label id="lab_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries_3A1868400EC52536804088A6A8E76DE1_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries_3A1868400EC52536804088A6A8E76DE1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sale of ownership interest in subsidiary</link:label>
    <link:label id="lab_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries_3A1868400EC52536804088A6A8E76DE1_label_en-US" xlink:label="lab_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries_3A1868400EC52536804088A6A8E76DE1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Proceeds from Divestiture of Interest in Consolidated Subsidiaries</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries_3A1868400EC52536804088A6A8E76DE1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries_3A1868400EC52536804088A6A8E76DE1" xlink:to="lab_us-gaap_ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries_3A1868400EC52536804088A6A8E76DE1" xlink:type="arc" />
    <link:label id="lab_us-gaap_ExtinguishmentOfDebtAmount_EE111D972CEC8F79167C88A6A8E71399_terseLabel_en-US" xlink:label="lab_us-gaap_ExtinguishmentOfDebtAmount_EE111D972CEC8F79167C88A6A8E71399" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Retirement of debt</link:label>
    <link:label id="lab_us-gaap_ExtinguishmentOfDebtAmount_EE111D972CEC8F79167C88A6A8E71399_label_en-US" xlink:label="lab_us-gaap_ExtinguishmentOfDebtAmount_EE111D972CEC8F79167C88A6A8E71399" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Extinguishment of Debt, Amount</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ExtinguishmentOfDebtAmount" xlink:label="loc_us-gaap_ExtinguishmentOfDebtAmount_EE111D972CEC8F79167C88A6A8E71399" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_ExtinguishmentOfDebtAmount_EE111D972CEC8F79167C88A6A8E71399" xlink:to="lab_us-gaap_ExtinguishmentOfDebtAmount_EE111D972CEC8F79167C88A6A8E71399" xlink:type="arc" />
    <link:label id="lab_nee_Gainonsaleofownershipinterestinsubsidiary_D1C60A992F754088648888A6A8F7B563_terseLabel_en-US" xlink:label="lab_nee_Gainonsaleofownershipinterestinsubsidiary_D1C60A992F754088648888A6A8F7B563" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain on sale of ownership interest in subsidiary</link:label>
    <link:label id="lab_nee_Gainonsaleofownershipinterestinsubsidiary_D1C60A992F754088648888A6A8F7B563_label_en-US" xlink:label="lab_nee_Gainonsaleofownershipinterestinsubsidiary_D1C60A992F754088648888A6A8F7B563" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain on sale of ownership interest in subsidiary</link:label>
    <link:label id="lab_nee_Gainonsaleofownershipinterestinsubsidiary_D1C60A992F754088648888A6A8F7B563_documentation_en-US" xlink:label="lab_nee_Gainonsaleofownershipinterestinsubsidiary_D1C60A992F754088648888A6A8F7B563" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gain on sale of ownership interest in subsidiary</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_Gainonsaleofownershipinterestinsubsidiary" xlink:label="loc_nee_Gainonsaleofownershipinterestinsubsidiary_D1C60A992F754088648888A6A8F7B563" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_Gainonsaleofownershipinterestinsubsidiary_D1C60A992F754088648888A6A8F7B563" xlink:to="lab_nee_Gainonsaleofownershipinterestinsubsidiary_D1C60A992F754088648888A6A8F7B563" xlink:type="arc" />
    <link:label id="lab_nee_Gainonsaleofownershipinterestinsubsidiaryaftertax_6B68CA3FD5509453690988A6A8F77A9F_terseLabel_en-US" xlink:label="lab_nee_Gainonsaleofownershipinterestinsubsidiaryaftertax_6B68CA3FD5509453690988A6A8F77A9F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gain on sale of ownership interest in subsidiary after-tax</link:label>
    <link:label id="lab_nee_Gainonsaleofownershipinterestinsubsidiaryaftertax_6B68CA3FD5509453690988A6A8F77A9F_label_en-US" xlink:label="lab_nee_Gainonsaleofownershipinterestinsubsidiaryaftertax_6B68CA3FD5509453690988A6A8F77A9F" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gain on sale of ownership interest in subsidiary after tax</link:label>
    <link:label id="lab_nee_Gainonsaleofownershipinterestinsubsidiaryaftertax_6B68CA3FD5509453690988A6A8F77A9F_documentation_en-US" xlink:label="lab_nee_Gainonsaleofownershipinterestinsubsidiaryaftertax_6B68CA3FD5509453690988A6A8F77A9F" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gain on sale of ownership interest in subsidiary after tax</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_Gainonsaleofownershipinterestinsubsidiaryaftertax" xlink:label="loc_nee_Gainonsaleofownershipinterestinsubsidiaryaftertax_6B68CA3FD5509453690988A6A8F77A9F" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_Gainonsaleofownershipinterestinsubsidiaryaftertax_6B68CA3FD5509453690988A6A8F77A9F" xlink:to="lab_nee_Gainonsaleofownershipinterestinsubsidiaryaftertax_6B68CA3FD5509453690988A6A8F77A9F" xlink:type="arc" />
    <link:label id="lab_nee_PlannedCapitalExpendituresTable_E20F86469C76011B85D468F69F60B6F1_terseLabel_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresTable_E20F86469C76011B85D468F69F60B6F1" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures [Table]</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresTable_E20F86469C76011B85D468F69F60B6F1_label_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresTable_E20F86469C76011B85D468F69F60B6F1" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures [Table]</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresTable_E20F86469C76011B85D468F69F60B6F1_documentation_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresTable_E20F86469C76011B85D468F69F60B6F1" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures [Table]</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedCapitalExpendituresTable" xlink:label="loc_nee_PlannedCapitalExpendituresTable_E20F86469C76011B85D468F69F60B6F1" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_PlannedCapitalExpendituresTable_E20F86469C76011B85D468F69F60B6F1" xlink:to="lab_nee_PlannedCapitalExpendituresTable_E20F86469C76011B85D468F69F60B6F1" xlink:type="arc" />
    <link:label id="lab_nee_PlannedCapitalExpendituresByCommitmentAxis_E2A084CA783D8C66ADB968F69F6289CD_label_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresByCommitmentAxis_E2A084CA783D8C66ADB968F69F6289CD" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures By Commitment [Axis]</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresByCommitmentAxis_E2A084CA783D8C66ADB968F69F6289CD_documentation_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresByCommitmentAxis_E2A084CA783D8C66ADB968F69F6289CD" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Details pertaining to estimated planned capital expenditures for a future period, by commitment.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedCapitalExpendituresByCommitmentAxis" xlink:label="loc_nee_PlannedCapitalExpendituresByCommitmentAxis_E2A084CA783D8C66ADB968F69F6289CD" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_PlannedCapitalExpendituresByCommitmentAxis_E2A084CA783D8C66ADB968F69F6289CD" xlink:to="lab_nee_PlannedCapitalExpendituresByCommitmentAxis_E2A084CA783D8C66ADB968F69F6289CD" xlink:type="arc" />
    <link:label id="lab_nee_PlannedCapitalExpendituresCommitmentDomain_0F5B57BBDF1C991962BD68F69F62A791_label_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresCommitmentDomain_0F5B57BBDF1C991962BD68F69F62A791" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures Commitment [Domain]</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresCommitmentDomain_0F5B57BBDF1C991962BD68F69F62A791_documentation_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresCommitmentDomain_0F5B57BBDF1C991962BD68F69F62A791" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Identification, by commitment, of estimated planned capital expenditures for a future period.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedCapitalExpendituresCommitmentDomain" xlink:label="loc_nee_PlannedCapitalExpendituresCommitmentDomain_0F5B57BBDF1C991962BD68F69F62A791" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_PlannedCapitalExpendituresCommitmentDomain_0F5B57BBDF1C991962BD68F69F62A791" xlink:to="lab_nee_PlannedCapitalExpendituresCommitmentDomain_0F5B57BBDF1C991962BD68F69F62A791" xlink:type="arc" />
    <link:label id="lab_nee_NewGenerationExpendituresMember_21B7A9AD3EFD3EC26A1D68F69F620FEA_label_en-US" xlink:label="lab_nee_NewGenerationExpendituresMember_21B7A9AD3EFD3EC26A1D68F69F620FEA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">New Generation Expenditures [Member]</link:label>
    <link:label id="lab_nee_NewGenerationExpendituresMember_21B7A9AD3EFD3EC26A1D68F69F620FEA_documentation_en-US" xlink:label="lab_nee_NewGenerationExpendituresMember_21B7A9AD3EFD3EC26A1D68F69F620FEA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures related to new generation.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_NewGenerationExpendituresMember" xlink:label="loc_nee_NewGenerationExpendituresMember_21B7A9AD3EFD3EC26A1D68F69F620FEA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_NewGenerationExpendituresMember_21B7A9AD3EFD3EC26A1D68F69F620FEA" xlink:to="lab_nee_NewGenerationExpendituresMember_21B7A9AD3EFD3EC26A1D68F69F620FEA" xlink:type="arc" />
    <link:label id="lab_nee_ExistingGenerationExpendituresMember_7FB0F789AB297BB23D4068F69F638055_label_en-US" xlink:label="lab_nee_ExistingGenerationExpendituresMember_7FB0F789AB297BB23D4068F69F638055" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Existing Generation Expenditures [Member]</link:label>
    <link:label id="lab_nee_ExistingGenerationExpendituresMember_7FB0F789AB297BB23D4068F69F638055_documentation_en-US" xlink:label="lab_nee_ExistingGenerationExpendituresMember_7FB0F789AB297BB23D4068F69F638055" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures related to existing generation.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_ExistingGenerationExpendituresMember" xlink:label="loc_nee_ExistingGenerationExpendituresMember_7FB0F789AB297BB23D4068F69F638055" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_ExistingGenerationExpendituresMember_7FB0F789AB297BB23D4068F69F638055" xlink:to="lab_nee_ExistingGenerationExpendituresMember_7FB0F789AB297BB23D4068F69F638055" xlink:type="arc" />
    <link:label id="lab_nee_TransmissionAndDistributionExpendituresMember_D7E70FACA8B6DF96EB0168F69F6317EE_label_en-US" xlink:label="lab_nee_TransmissionAndDistributionExpendituresMember_D7E70FACA8B6DF96EB0168F69F6317EE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Transmission And Distribution Expenditures [Member]</link:label>
    <link:label id="lab_nee_TransmissionAndDistributionExpendituresMember_D7E70FACA8B6DF96EB0168F69F6317EE_documentation_en-US" xlink:label="lab_nee_TransmissionAndDistributionExpendituresMember_D7E70FACA8B6DF96EB0168F69F6317EE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures related to transmission and distribution.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_TransmissionAndDistributionExpendituresMember" xlink:label="loc_nee_TransmissionAndDistributionExpendituresMember_D7E70FACA8B6DF96EB0168F69F6317EE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_TransmissionAndDistributionExpendituresMember_D7E70FACA8B6DF96EB0168F69F6317EE" xlink:to="lab_nee_TransmissionAndDistributionExpendituresMember_D7E70FACA8B6DF96EB0168F69F6317EE" xlink:type="arc" />
    <link:label id="lab_nee_NuclearFuelExpendituresMember_79B371DE2C4645F14F7968F69F63C1AA_label_en-US" xlink:label="lab_nee_NuclearFuelExpendituresMember_79B371DE2C4645F14F7968F69F63C1AA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Nuclear Fuel Expenditures [Member]</link:label>
    <link:label id="lab_nee_NuclearFuelExpendituresMember_79B371DE2C4645F14F7968F69F63C1AA_documentation_en-US" xlink:label="lab_nee_NuclearFuelExpendituresMember_79B371DE2C4645F14F7968F69F63C1AA" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures related to nuclear fuel.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_NuclearFuelExpendituresMember" xlink:label="loc_nee_NuclearFuelExpendituresMember_79B371DE2C4645F14F7968F69F63C1AA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_NuclearFuelExpendituresMember_79B371DE2C4645F14F7968F69F63C1AA" xlink:to="lab_nee_NuclearFuelExpendituresMember_79B371DE2C4645F14F7968F69F63C1AA" xlink:type="arc" />
    <link:label id="lab_nee_GeneralAndOtherExpendituresMember_FE5FE1EAC617E5E032AE68F69F6348A3_label_en-US" xlink:label="lab_nee_GeneralAndOtherExpendituresMember_FE5FE1EAC617E5E032AE68F69F6348A3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">General And Other Expenditures [Member]</link:label>
    <link:label id="lab_nee_GeneralAndOtherExpendituresMember_FE5FE1EAC617E5E032AE68F69F6348A3_documentation_en-US" xlink:label="lab_nee_GeneralAndOtherExpendituresMember_FE5FE1EAC617E5E032AE68F69F6348A3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures related to general and other.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_GeneralAndOtherExpendituresMember" xlink:label="loc_nee_GeneralAndOtherExpendituresMember_FE5FE1EAC617E5E032AE68F69F6348A3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_GeneralAndOtherExpendituresMember_FE5FE1EAC617E5E032AE68F69F6348A3" xlink:to="lab_nee_GeneralAndOtherExpendituresMember_FE5FE1EAC617E5E032AE68F69F6348A3" xlink:type="arc" />
    <link:label id="lab_nee_WindExpendituresMember_C06AE534767BCA3724DA68F69F639453_label_en-US" xlink:label="lab_nee_WindExpendituresMember_C06AE534767BCA3724DA68F69F639453" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Wind Expenditures [Member]</link:label>
    <link:label id="lab_nee_WindExpendituresMember_C06AE534767BCA3724DA68F69F639453_documentation_en-US" xlink:label="lab_nee_WindExpendituresMember_C06AE534767BCA3724DA68F69F639453" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures related to wind.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_WindExpendituresMember" xlink:label="loc_nee_WindExpendituresMember_C06AE534767BCA3724DA68F69F639453" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_WindExpendituresMember_C06AE534767BCA3724DA68F69F639453" xlink:to="lab_nee_WindExpendituresMember_C06AE534767BCA3724DA68F69F639453" xlink:type="arc" />
    <link:label id="lab_nee_SolarExpendituresMember_4FD1C219CCC26C5CA6A468F69F64C596_label_en-US" xlink:label="lab_nee_SolarExpendituresMember_4FD1C219CCC26C5CA6A468F69F64C596" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Solar Expenditures [Member]</link:label>
    <link:label id="lab_nee_SolarExpendituresMember_4FD1C219CCC26C5CA6A468F69F64C596_documentation_en-US" xlink:label="lab_nee_SolarExpendituresMember_4FD1C219CCC26C5CA6A468F69F64C596" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures related to solar.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_SolarExpendituresMember" xlink:label="loc_nee_SolarExpendituresMember_4FD1C219CCC26C5CA6A468F69F64C596" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_SolarExpendituresMember_4FD1C219CCC26C5CA6A468F69F64C596" xlink:to="lab_nee_SolarExpendituresMember_4FD1C219CCC26C5CA6A468F69F64C596" xlink:type="arc" />
    <link:label id="lab_nee_NuclearExpendituresMember_570694D748815E6A601168F69F642504_label_en-US" xlink:label="lab_nee_NuclearExpendituresMember_570694D748815E6A601168F69F642504" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Nuclear Expenditures [Member]</link:label>
    <link:label id="lab_nee_NuclearExpendituresMember_570694D748815E6A601168F69F642504_documentation_en-US" xlink:label="lab_nee_NuclearExpendituresMember_570694D748815E6A601168F69F642504" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures related to nuclear.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_NuclearExpendituresMember" xlink:label="loc_nee_NuclearExpendituresMember_570694D748815E6A601168F69F642504" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_NuclearExpendituresMember_570694D748815E6A601168F69F642504" xlink:to="lab_nee_NuclearExpendituresMember_570694D748815E6A601168F69F642504" xlink:type="arc" />
    <link:label id="lab_us-gaap_PipelinesMember_2BA6890CF54397C335FD68F69F6407AA_terseLabel_en-US" xlink:label="lab_us-gaap_PipelinesMember_2BA6890CF54397C335FD68F69F6407AA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pipelines [Member]</link:label>
    <link:label id="lab_us-gaap_PipelinesMember_2BA6890CF54397C335FD68F69F6407AA_label_en-US" xlink:label="lab_us-gaap_PipelinesMember_2BA6890CF54397C335FD68F69F6407AA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pipelines [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PipelinesMember" xlink:label="loc_us-gaap_PipelinesMember_2BA6890CF54397C335FD68F69F6407AA" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_PipelinesMember_2BA6890CF54397C335FD68F69F6407AA" xlink:to="lab_us-gaap_PipelinesMember_2BA6890CF54397C335FD68F69F6407AA" xlink:type="arc" />
    <link:label id="lab_nee_OtherExpendituresMember_F7E34556D3652BFF967C68F69F64CD2C_label_en-US" xlink:label="lab_nee_OtherExpendituresMember_F7E34556D3652BFF967C68F69F64CD2C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Other Expenditures [Member]</link:label>
    <link:label id="lab_nee_OtherExpendituresMember_F7E34556D3652BFF967C68F69F64CD2C_documentation_en-US" xlink:label="lab_nee_OtherExpendituresMember_F7E34556D3652BFF967C68F69F64CD2C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures related to other.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_OtherExpendituresMember" xlink:label="loc_nee_OtherExpendituresMember_F7E34556D3652BFF967C68F69F64CD2C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_OtherExpendituresMember_F7E34556D3652BFF967C68F69F64CD2C" xlink:to="lab_nee_OtherExpendituresMember_F7E34556D3652BFF967C68F69F64CD2C" xlink:type="arc" />
    <link:label id="lab_nee_GenerationExpendituresMember_2AB66B0702ECDAD9090668F69F64D738_terseLabel_en-US" xlink:label="lab_nee_GenerationExpendituresMember_2AB66B0702ECDAD9090668F69F64D738" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Generation Expenditures [Member]</link:label>
    <link:label id="lab_nee_GenerationExpendituresMember_2AB66B0702ECDAD9090668F69F64D738_label_en-US" xlink:label="lab_nee_GenerationExpendituresMember_2AB66B0702ECDAD9090668F69F64D738" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Generation Expenditures [Member]</link:label>
    <link:label id="lab_nee_GenerationExpendituresMember_2AB66B0702ECDAD9090668F69F64D738_documentation_en-US" xlink:label="lab_nee_GenerationExpendituresMember_2AB66B0702ECDAD9090668F69F64D738" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures related to new and existing generation.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_GenerationExpendituresMember" xlink:label="loc_nee_GenerationExpendituresMember_2AB66B0702ECDAD9090668F69F64D738" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_GenerationExpendituresMember_2AB66B0702ECDAD9090668F69F64D738" xlink:to="lab_nee_GenerationExpendituresMember_2AB66B0702ECDAD9090668F69F64D738" xlink:type="arc" />
    <link:label id="lab_nee_NaturalGasPlantMember_ADDEA2B843EFBF82CD0968F69F64E816_terseLabel_en-US" xlink:label="lab_nee_NaturalGasPlantMember_ADDEA2B843EFBF82CD0968F69F64E816" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Natural gas plant [Member]</link:label>
    <link:label id="lab_nee_NaturalGasPlantMember_ADDEA2B843EFBF82CD0968F69F64E816_label_en-US" xlink:label="lab_nee_NaturalGasPlantMember_ADDEA2B843EFBF82CD0968F69F64E816" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Natural Gas Plant [Member]</link:label>
    <link:label id="lab_nee_NaturalGasPlantMember_ADDEA2B843EFBF82CD0968F69F64E816_documentation_en-US" xlink:label="lab_nee_NaturalGasPlantMember_ADDEA2B843EFBF82CD0968F69F64E816" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Natural Gas Plant [Member]</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_NaturalGasPlantMember" xlink:label="loc_nee_NaturalGasPlantMember_ADDEA2B843EFBF82CD0968F69F64E816" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_NaturalGasPlantMember_ADDEA2B843EFBF82CD0968F69F64E816" xlink:to="lab_nee_NaturalGasPlantMember_ADDEA2B843EFBF82CD0968F69F64E816" xlink:type="arc" />
    <link:label id="lab_nee_PlannedCapitalExpendituresLineItems_13E4F278DDC1D3BE03BD68F69F65A977_label_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresLineItems_13E4F278DDC1D3BE03BD68F69F65A977" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures [Line Items]</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresLineItems_13E4F278DDC1D3BE03BD68F69F65A977_documentation_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresLineItems_13E4F278DDC1D3BE03BD68F69F65A977" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedCapitalExpendituresLineItems" xlink:label="loc_nee_PlannedCapitalExpendituresLineItems_13E4F278DDC1D3BE03BD68F69F65A977" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_PlannedCapitalExpendituresLineItems_13E4F278DDC1D3BE03BD68F69F65A977" xlink:to="lab_nee_PlannedCapitalExpendituresLineItems_13E4F278DDC1D3BE03BD68F69F65A977" xlink:type="arc" />
    <link:label id="lab_nee_PlannedCapitalExpendituresRemainderCurrentYear_9AAC96CA7C6B0D88AF4468F69F66768E_terseLabel_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresRemainderCurrentYear_9AAC96CA7C6B0D88AF4468F69F66768E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remainder of 2018</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresRemainderCurrentYear_9AAC96CA7C6B0D88AF4468F69F66768E_label_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresRemainderCurrentYear_9AAC96CA7C6B0D88AF4468F69F66768E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures Remainder Current Year</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresRemainderCurrentYear_9AAC96CA7C6B0D88AF4468F69F66768E_documentation_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresRemainderCurrentYear_9AAC96CA7C6B0D88AF4468F69F66768E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures for the remainder of the current year.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedCapitalExpendituresRemainderCurrentYear" xlink:label="loc_nee_PlannedCapitalExpendituresRemainderCurrentYear_9AAC96CA7C6B0D88AF4468F69F66768E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_PlannedCapitalExpendituresRemainderCurrentYear_9AAC96CA7C6B0D88AF4468F69F66768E" xlink:to="lab_nee_PlannedCapitalExpendituresRemainderCurrentYear_9AAC96CA7C6B0D88AF4468F69F66768E" xlink:type="arc" />
    <link:label id="lab_nee_PlannedCapitalExpendituresSecondYear_EB7AD7A382C3FCF2821168F69F662029_terseLabel_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresSecondYear_EB7AD7A382C3FCF2821168F69F662029" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2019</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresSecondYear_EB7AD7A382C3FCF2821168F69F662029_label_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresSecondYear_EB7AD7A382C3FCF2821168F69F662029" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures Second Year</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresSecondYear_EB7AD7A382C3FCF2821168F69F662029_documentation_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresSecondYear_EB7AD7A382C3FCF2821168F69F662029" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures for the second year.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedCapitalExpendituresSecondYear" xlink:label="loc_nee_PlannedCapitalExpendituresSecondYear_EB7AD7A382C3FCF2821168F69F662029" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_PlannedCapitalExpendituresSecondYear_EB7AD7A382C3FCF2821168F69F662029" xlink:to="lab_nee_PlannedCapitalExpendituresSecondYear_EB7AD7A382C3FCF2821168F69F662029" xlink:type="arc" />
    <link:label id="lab_nee_PlannedCapitalExpendituresThirdYear_3C935BA339B6D8F60DAA68F69F666075_terseLabel_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresThirdYear_3C935BA339B6D8F60DAA68F69F666075" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2020</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresThirdYear_3C935BA339B6D8F60DAA68F69F666075_label_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresThirdYear_3C935BA339B6D8F60DAA68F69F666075" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures Third Year</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresThirdYear_3C935BA339B6D8F60DAA68F69F666075_documentation_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresThirdYear_3C935BA339B6D8F60DAA68F69F666075" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures for the third year.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedCapitalExpendituresThirdYear" xlink:label="loc_nee_PlannedCapitalExpendituresThirdYear_3C935BA339B6D8F60DAA68F69F666075" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_PlannedCapitalExpendituresThirdYear_3C935BA339B6D8F60DAA68F69F666075" xlink:to="lab_nee_PlannedCapitalExpendituresThirdYear_3C935BA339B6D8F60DAA68F69F666075" xlink:type="arc" />
    <link:label id="lab_nee_PlannedCapitalExpendituresFourthYear_A339575D086641BFCBA968F69F66049D_terseLabel_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresFourthYear_A339575D086641BFCBA968F69F66049D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2021</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresFourthYear_A339575D086641BFCBA968F69F66049D_label_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresFourthYear_A339575D086641BFCBA968F69F66049D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures Fourth Year</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresFourthYear_A339575D086641BFCBA968F69F66049D_documentation_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresFourthYear_A339575D086641BFCBA968F69F66049D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures for the fourth year.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedCapitalExpendituresFourthYear" xlink:label="loc_nee_PlannedCapitalExpendituresFourthYear_A339575D086641BFCBA968F69F66049D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_PlannedCapitalExpendituresFourthYear_A339575D086641BFCBA968F69F66049D" xlink:to="lab_nee_PlannedCapitalExpendituresFourthYear_A339575D086641BFCBA968F69F66049D" xlink:type="arc" />
    <link:label id="lab_nee_PlannedCapitalExpendituresFifthYear_A7410F6C2868A96559E268F69F6679D3_terseLabel_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresFifthYear_A7410F6C2868A96559E268F69F6679D3" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2022</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresFifthYear_A7410F6C2868A96559E268F69F6679D3_label_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresFifthYear_A7410F6C2868A96559E268F69F6679D3" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures Fifth Year</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresFifthYear_A7410F6C2868A96559E268F69F6679D3_documentation_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresFifthYear_A7410F6C2868A96559E268F69F6679D3" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated planned capital expenditures for the fifth year.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedCapitalExpendituresFifthYear" xlink:label="loc_nee_PlannedCapitalExpendituresFifthYear_A7410F6C2868A96559E268F69F6679D3" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_PlannedCapitalExpendituresFifthYear_A7410F6C2868A96559E268F69F6679D3" xlink:to="lab_nee_PlannedCapitalExpendituresFifthYear_A7410F6C2868A96559E268F69F6679D3" xlink:type="arc" />
    <link:label id="lab_nee_TotalPlannedCapitalExpenditures_6732623CA01EE2992D2A68F69F66E643_totalLabel_en-US" xlink:label="lab_nee_TotalPlannedCapitalExpenditures_6732623CA01EE2992D2A68F69F66E643" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:type="resource" xml:lang="en-US">Total</link:label>
    <link:label id="lab_nee_TotalPlannedCapitalExpenditures_6732623CA01EE2992D2A68F69F66E643_label_en-US" xlink:label="lab_nee_TotalPlannedCapitalExpenditures_6732623CA01EE2992D2A68F69F66E643" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total Planned Capital Expenditures</link:label>
    <link:label id="lab_nee_TotalPlannedCapitalExpenditures_6732623CA01EE2992D2A68F69F66E643_documentation_en-US" xlink:label="lab_nee_TotalPlannedCapitalExpenditures_6732623CA01EE2992D2A68F69F66E643" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Total estimated planned capital expenditures.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_TotalPlannedCapitalExpenditures" xlink:label="loc_nee_TotalPlannedCapitalExpenditures_6732623CA01EE2992D2A68F69F66E643" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_TotalPlannedCapitalExpenditures_6732623CA01EE2992D2A68F69F66E643" xlink:to="lab_nee_TotalPlannedCapitalExpenditures_6732623CA01EE2992D2A68F69F66E643" xlink:type="arc" />
    <link:label id="lab_nee_PlannedCapitalExpendituresAFUDCRemainderofCurrentYear_4012A275B9C3C47D20DA68F69F672388_terseLabel_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresAFUDCRemainderofCurrentYear_4012A275B9C3C47D20DA68F69F672388" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Allowance for funds used during construction (AFUDC) - remainder of 2018</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresAFUDCRemainderofCurrentYear_4012A275B9C3C47D20DA68F69F672388_label_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresAFUDCRemainderofCurrentYear_4012A275B9C3C47D20DA68F69F672388" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures AFUDC Remainder of Current Year</link:label>
    <link:label id="lab_nee_PlannedCapitalExpendituresAFUDCRemainderofCurrentYear_4012A275B9C3C47D20DA68F69F672388_documentation_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresAFUDCRemainderofCurrentYear_4012A275B9C3C47D20DA68F69F672388" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures AFUDC Remainder of Current Year</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedCapitalExpendituresAFUDCRemainderofCurrentYear" xlink:label="loc_nee_PlannedCapitalExpendituresAFUDCRemainderofCurrentYear_4012A275B9C3C47D20DA68F69F672388" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_PlannedCapitalExpendituresAFUDCRemainderofCurrentYear_4012A275B9C3C47D20DA68F69F672388" xlink:to="lab_nee_PlannedCapitalExpendituresAFUDCRemainderofCurrentYear_4012A275B9C3C47D20DA68F69F672388" xlink:type="arc" />
    <link:label id="lab_nee_PlannedGenerationCapitalExpendituresAfudcSecondYear_B466B122BC3356059E2468F69F67BD34_terseLabel_en-US" xlink:label="lab_nee_PlannedGenerationCapitalExpendituresAfudcSecondYear_B466B122BC3356059E2468F69F67BD34" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Allowance for funds used during construction (AFUDC) - 2019</link:label>
    <link:label id="lab_nee_PlannedGenerationCapitalExpendituresAfudcSecondYear_B466B122BC3356059E2468F69F67BD34_label_en-US" xlink:label="lab_nee_PlannedGenerationCapitalExpendituresAfudcSecondYear_B466B122BC3356059E2468F69F67BD34" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Planned Generation Capital Expenditures Afudc Second Year</link:label>
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    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedCapitalExpendituresAFUDCFourthYear" xlink:label="loc_nee_PlannedCapitalExpendituresAFUDCFourthYear_F5F7AFD08433BA542E7868F69F67D44D" xlink:type="locator" />
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    <link:label id="lab_nee_PlannedCapitalExpendituresAFUDCFifthYear_B31E3EE05B511EEF540468F69F6732E5_documentation_en-US" xlink:label="lab_nee_PlannedCapitalExpendituresAFUDCFifthYear_B31E3EE05B511EEF540468F69F6732E5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Planned Capital Expenditures AFUDC Fifth Year</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedCapitalExpendituresAFUDCFifthYear" xlink:label="loc_nee_PlannedCapitalExpendituresAFUDCFifthYear_B31E3EE05B511EEF540468F69F6732E5" xlink:type="locator" />
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    <link:label id="lab_nee_NumberOfNaturalGasGenerationFacilities_81B09F34CA8FD65F6041698C8DF7E791_terseLabel_en-US" xlink:label="lab_nee_NumberOfNaturalGasGenerationFacilities_81B09F34CA8FD65F6041698C8DF7E791" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of natural gas generation facilities</link:label>
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    <link:loc xlink:href="nee-20180930.xsd#nee_NumberOfNaturalGasGenerationFacilities" xlink:label="loc_nee_NumberOfNaturalGasGenerationFacilities_81B09F34CA8FD65F6041698C8DF7E791" xlink:type="locator" />
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    <link:label id="lab_nee_PlannedNewGenerationToBeAddedover5Years_DA84D2ACDAA87F1DCBBE68F69F68742D_documentation_en-US" xlink:label="lab_nee_PlannedNewGenerationToBeAddedover5Years_DA84D2ACDAA87F1DCBBE68F69F68742D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Planned New Generation To Be Added over 5 Years in Megawatts</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PlannedNewGenerationToBeAddedover5Years" xlink:label="loc_nee_PlannedNewGenerationToBeAddedover5Years_DA84D2ACDAA87F1DCBBE68F69F68742D" xlink:type="locator" />
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    <link:label id="lab_nee_OleaderPowerProjectMember_2839FBA5B42FA25EB1759BED3EFFE1FF_terseLabel_en-US" xlink:label="lab_nee_OleaderPowerProjectMember_2839FBA5B42FA25EB1759BED3EFFE1FF" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Oleader Power Project [Member]</link:label>
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    <link:label id="lab_nee_JEAMember_FAFEB34D75D354A5F67E834271DFE197_terseLabel_en-US" xlink:label="lab_nee_JEAMember_FAFEB34D75D354A5F67E834271DFE197" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">JEA [Member]</link:label>
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    <link:label id="lab_nee_JEAMember_FAFEB34D75D354A5F67E834271DFE197_documentation_en-US" xlink:label="lab_nee_JEAMember_FAFEB34D75D354A5F67E834271DFE197" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">JEA [Member]</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_JEAMember" xlink:label="loc_nee_JEAMember_FAFEB34D75D354A5F67E834271DFE197" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_JEAMember_FAFEB34D75D354A5F67E834271DFE197" xlink:to="lab_nee_JEAMember_FAFEB34D75D354A5F67E834271DFE197" xlink:type="arc" />
    <link:label id="lab_nee_SabalTrailandFloridaSoutheastConnectionMember_85481FE8F22671D0C775834271DFF18A_terseLabel_en-US" xlink:label="lab_nee_SabalTrailandFloridaSoutheastConnectionMember_85481FE8F22671D0C775834271DFF18A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Sabal Trail and Florida Southeast Connection [Member]</link:label>
    <link:label id="lab_nee_SabalTrailandFloridaSoutheastConnectionMember_85481FE8F22671D0C775834271DFF18A_label_en-US" xlink:label="lab_nee_SabalTrailandFloridaSoutheastConnectionMember_85481FE8F22671D0C775834271DFF18A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sabal Trail and Florida Southeast Connection [Member]</link:label>
    <link:label id="lab_nee_SabalTrailandFloridaSoutheastConnectionMember_85481FE8F22671D0C775834271DFF18A_documentation_en-US" xlink:label="lab_nee_SabalTrailandFloridaSoutheastConnectionMember_85481FE8F22671D0C775834271DFF18A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sabal Trail and Florida Southeast Connection [Member]</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_SabalTrailandFloridaSoutheastConnectionMember" xlink:label="loc_nee_SabalTrailandFloridaSoutheastConnectionMember_85481FE8F22671D0C775834271DFF18A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_SabalTrailandFloridaSoutheastConnectionMember_85481FE8F22671D0C775834271DFF18A" xlink:to="lab_nee_SabalTrailandFloridaSoutheastConnectionMember_85481FE8F22671D0C775834271DFF18A" xlink:type="arc" />
    <link:label id="lab_nee_MountainValleyPipelineMember_2FAB9524FF5C4D02D776834271DFDDED_terseLabel_en-US" xlink:label="lab_nee_MountainValleyPipelineMember_2FAB9524FF5C4D02D776834271DFDDED" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Mountain Valley Pipeline [Member]</link:label>
    <link:label id="lab_nee_MountainValleyPipelineMember_2FAB9524FF5C4D02D776834271DFDDED_label_en-US" xlink:label="lab_nee_MountainValleyPipelineMember_2FAB9524FF5C4D02D776834271DFDDED" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Mountain Valley Pipeline [Member]</link:label>
    <link:label id="lab_nee_MountainValleyPipelineMember_2FAB9524FF5C4D02D776834271DFDDED_documentation_en-US" xlink:label="lab_nee_MountainValleyPipelineMember_2FAB9524FF5C4D02D776834271DFDDED" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Mountain Valley Pipeline [Member]</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_MountainValleyPipelineMember" xlink:label="loc_nee_MountainValleyPipelineMember_2FAB9524FF5C4D02D776834271DFDDED" xlink:type="locator" />
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    <link:label id="lab_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_C8A169F419371235B6C4834271DF5E30_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_C8A169F419371235B6C4834271DF5E30" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Category of Item Purchased [Axis]</link:label>
    <link:label id="lab_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_C8A169F419371235B6C4834271DF5E30_label_en-US" xlink:label="lab_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_C8A169F419371235B6C4834271DF5E30" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Category of Item Purchased [Axis]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_C8A169F419371235B6C4834271DF5E30" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_C8A169F419371235B6C4834271DF5E30" xlink:to="lab_us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis_C8A169F419371235B6C4834271DF5E30" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_EBBD9E47F06AF71358AD834271DF3F84_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_EBBD9E47F06AF71358AD834271DF3F84" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Purchase Commitment, Category of Item Purchased [Domain]</link:label>
    <link:label id="lab_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_EBBD9E47F06AF71358AD834271DF3F84_label_en-US" xlink:label="lab_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_EBBD9E47F06AF71358AD834271DF3F84" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Purchase Commitment, Category of Item Purchased [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_EBBD9E47F06AF71358AD834271DF3F84" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_EBBD9E47F06AF71358AD834271DF3F84" xlink:to="lab_us-gaap_LongTermPurchaseCommitmentCategoryOfItemPurchasedDomain_EBBD9E47F06AF71358AD834271DF3F84" xlink:type="arc" />
    <link:label id="lab_nee_PayforPerformanceContractsMember_40F9355DA4BB6DF214B1834271DF3AB2_terseLabel_en-US" xlink:label="lab_nee_PayforPerformanceContractsMember_40F9355DA4BB6DF214B1834271DF3AB2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Pay-for-Performance Contracts [Member]</link:label>
    <link:label id="lab_nee_PayforPerformanceContractsMember_40F9355DA4BB6DF214B1834271DF3AB2_label_en-US" xlink:label="lab_nee_PayforPerformanceContractsMember_40F9355DA4BB6DF214B1834271DF3AB2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pay-for-Performance Contracts [Member]</link:label>
    <link:label id="lab_nee_PayforPerformanceContractsMember_40F9355DA4BB6DF214B1834271DF3AB2_documentation_en-US" xlink:label="lab_nee_PayforPerformanceContractsMember_40F9355DA4BB6DF214B1834271DF3AB2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Pay-for-Performance Contracts [Member]</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PayforPerformanceContractsMember" xlink:label="loc_nee_PayforPerformanceContractsMember_40F9355DA4BB6DF214B1834271DF3AB2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_PayforPerformanceContractsMember_40F9355DA4BB6DF214B1834271DF3AB2" xlink:to="lab_nee_PayforPerformanceContractsMember_40F9355DA4BB6DF214B1834271DF3AB2" xlink:type="arc" />
    <link:label id="lab_nee_ContractGroup1Member_1EEE7C363762F5656C1F834271DF617B_label_en-US" xlink:label="lab_nee_ContractGroup1Member_1EEE7C363762F5656C1F834271DF617B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Contract Group 1 [Member]</link:label>
    <link:label id="lab_nee_ContractGroup1Member_1EEE7C363762F5656C1F834271DF617B_documentation_en-US" xlink:label="lab_nee_ContractGroup1Member_1EEE7C363762F5656C1F834271DF617B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">NextEra Energy Resources contracts that include, but are not limited to, the purchase of wind turbines and towers, solar reflectors, steam turbine generators and heat collection elements and related construction activities, as well as for the supply, conversion, enrichment and fabrication of nuclear fuel.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_ContractGroup1Member" xlink:label="loc_nee_ContractGroup1Member_1EEE7C363762F5656C1F834271DF617B" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_ContractGroup1Member_1EEE7C363762F5656C1F834271DF617B" xlink:to="lab_nee_ContractGroup1Member_1EEE7C363762F5656C1F834271DF617B" xlink:type="arc" />
    <link:label id="lab_nee_CapacityChargesMember_AD08DBAD5841B5D569F0834271DFE371_terseLabel_en-US" xlink:label="lab_nee_CapacityChargesMember_AD08DBAD5841B5D569F0834271DFE371" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capacity Charges [Member]</link:label>
    <link:label id="lab_nee_CapacityChargesMember_AD08DBAD5841B5D569F0834271DFE371_label_en-US" xlink:label="lab_nee_CapacityChargesMember_AD08DBAD5841B5D569F0834271DFE371" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Capacity Charges [Member]</link:label>
    <link:label id="lab_nee_CapacityChargesMember_AD08DBAD5841B5D569F0834271DFE371_documentation_en-US" xlink:label="lab_nee_CapacityChargesMember_AD08DBAD5841B5D569F0834271DFE371" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Capacity Charges [Member]</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_CapacityChargesMember" xlink:label="loc_nee_CapacityChargesMember_AD08DBAD5841B5D569F0834271DFE371" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_CapacityChargesMember_AD08DBAD5841B5D569F0834271DFE371" xlink:to="lab_nee_CapacityChargesMember_AD08DBAD5841B5D569F0834271DFE371" xlink:type="arc" />
    <link:label id="lab_nee_NaturalGasIncludingTransportationAndStorageContractMinimumPaymentsMember_41258D391F22EBABC8ED834271DFB4D5_label_en-US" xlink:label="lab_nee_NaturalGasIncludingTransportationAndStorageContractMinimumPaymentsMember_41258D391F22EBABC8ED834271DFB4D5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Natural Gas, Including Transportation And Storage, Contract Minimum Payments [Member]</link:label>
    <link:label id="lab_nee_NaturalGasIncludingTransportationAndStorageContractMinimumPaymentsMember_41258D391F22EBABC8ED834271DFB4D5_documentation_en-US" xlink:label="lab_nee_NaturalGasIncludingTransportationAndStorageContractMinimumPaymentsMember_41258D391F22EBABC8ED834271DFB4D5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The minimum amount FPL agreed to spend under purchase commitments for natural gas, including transportation and storage.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_NaturalGasIncludingTransportationAndStorageContractMinimumPaymentsMember" xlink:label="loc_nee_NaturalGasIncludingTransportationAndStorageContractMinimumPaymentsMember_41258D391F22EBABC8ED834271DFB4D5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_NaturalGasIncludingTransportationAndStorageContractMinimumPaymentsMember_41258D391F22EBABC8ED834271DFB4D5" xlink:to="lab_nee_NaturalGasIncludingTransportationAndStorageContractMinimumPaymentsMember_41258D391F22EBABC8ED834271DFB4D5" xlink:type="arc" />
    <link:label id="lab_nee_CoalContractMinimumPaymentsMember_2686CDDE1BE36AE3215D834271DF8814_label_en-US" xlink:label="lab_nee_CoalContractMinimumPaymentsMember_2686CDDE1BE36AE3215D834271DF8814" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Coal Contract Minimum Payments [Member]</link:label>
    <link:label id="lab_nee_CoalContractMinimumPaymentsMember_2686CDDE1BE36AE3215D834271DF8814_documentation_en-US" xlink:label="lab_nee_CoalContractMinimumPaymentsMember_2686CDDE1BE36AE3215D834271DF8814" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">The minimum amount FPL agreed to spend under long-term purchase commitments for coal.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_CoalContractMinimumPaymentsMember" xlink:label="loc_nee_CoalContractMinimumPaymentsMember_2686CDDE1BE36AE3215D834271DF8814" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_CoalContractMinimumPaymentsMember_2686CDDE1BE36AE3215D834271DF8814" xlink:to="lab_nee_CoalContractMinimumPaymentsMember_2686CDDE1BE36AE3215D834271DF8814" xlink:type="arc" />
    <link:label id="lab_nee_TakeorPayContractRange1Member_A747A60A87DE6E4304B2834271DF8B42_terseLabel_en-US" xlink:label="lab_nee_TakeorPayContractRange1Member_A747A60A87DE6E4304B2834271DF8B42" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Take-or-Pay Contract Range 1 [Member]</link:label>
    <link:label id="lab_nee_TakeorPayContractRange1Member_A747A60A87DE6E4304B2834271DF8B42_label_en-US" xlink:label="lab_nee_TakeorPayContractRange1Member_A747A60A87DE6E4304B2834271DF8B42" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Take-or-Pay Contract Range 1 [Member]</link:label>
    <link:label id="lab_nee_TakeorPayContractRange1Member_A747A60A87DE6E4304B2834271DF8B42_documentation_en-US" xlink:label="lab_nee_TakeorPayContractRange1Member_A747A60A87DE6E4304B2834271DF8B42" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Take-or-Pay Contract Range 1 [Member]</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_TakeorPayContractRange1Member" xlink:label="loc_nee_TakeorPayContractRange1Member_A747A60A87DE6E4304B2834271DF8B42" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_TakeorPayContractRange1Member_A747A60A87DE6E4304B2834271DF8B42" xlink:to="lab_nee_TakeorPayContractRange1Member_A747A60A87DE6E4304B2834271DF8B42" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongTermPurchaseCommitmentLineItems_7D65ABC408F3F98DA7A8834271DF885D_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermPurchaseCommitmentLineItems_7D65ABC408F3F98DA7A8834271DF885D" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Long-term Purchase Commitment [Line Items]</link:label>
    <link:label id="lab_us-gaap_LongTermPurchaseCommitmentLineItems_7D65ABC408F3F98DA7A8834271DF885D_label_en-US" xlink:label="lab_us-gaap_LongTermPurchaseCommitmentLineItems_7D65ABC408F3F98DA7A8834271DF885D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Purchase Commitment [Line Items]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermPurchaseCommitmentLineItems" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentLineItems_7D65ABC408F3F98DA7A8834271DF885D" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentLineItems_7D65ABC408F3F98DA7A8834271DF885D" xlink:to="lab_us-gaap_LongTermPurchaseCommitmentLineItems_7D65ABC408F3F98DA7A8834271DF885D" xlink:type="arc" />
    <link:label id="lab_us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired_C0E3F6C5AE8315D14238834271DFC5D6_terseLabel_en-US" xlink:label="lab_us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired_C0E3F6C5AE8315D14238834271DFC5D6" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Minimum total purchase commitments (in megawatts)</link:label>
    <link:label id="lab_us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired_C0E3F6C5AE8315D14238834271DFC5D6_label_en-US" xlink:label="lab_us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired_C0E3F6C5AE8315D14238834271DFC5D6" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Long-term Purchase Commitment, Minimum Quantity Required</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired" xlink:label="loc_us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired_C0E3F6C5AE8315D14238834271DFC5D6" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired_C0E3F6C5AE8315D14238834271DFC5D6" xlink:to="lab_us-gaap_LongTermPurchaseCommitmentMinimumQuantityRequired_C0E3F6C5AE8315D14238834271DFC5D6" xlink:type="arc" />
    <link:label id="lab_nee_CommitmentsIncludedInPlannedCapitalExpenditures_B032CD2806A6E6588026834271DFF206_terseLabel_en-US" xlink:label="lab_nee_CommitmentsIncludedInPlannedCapitalExpenditures_B032CD2806A6E6588026834271DFF206" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commitment amount included in capital expenditures</link:label>
    <link:label id="lab_nee_CommitmentsIncludedInPlannedCapitalExpenditures_B032CD2806A6E6588026834271DFF206_label_en-US" xlink:label="lab_nee_CommitmentsIncludedInPlannedCapitalExpenditures_B032CD2806A6E6588026834271DFF206" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Commitments Included In Planned Capital Expenditures</link:label>
    <link:label id="lab_nee_CommitmentsIncludedInPlannedCapitalExpenditures_B032CD2806A6E6588026834271DFF206_documentation_en-US" xlink:label="lab_nee_CommitmentsIncludedInPlannedCapitalExpenditures_B032CD2806A6E6588026834271DFF206" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Commitments included in planned capital expenditures</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_CommitmentsIncludedInPlannedCapitalExpenditures" xlink:label="loc_nee_CommitmentsIncludedInPlannedCapitalExpenditures_B032CD2806A6E6588026834271DFF206" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_CommitmentsIncludedInPlannedCapitalExpenditures_B032CD2806A6E6588026834271DFF206" xlink:to="lab_nee_CommitmentsIncludedInPlannedCapitalExpenditures_B032CD2806A6E6588026834271DFF206" xlink:type="arc" />
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsAbstract_82B9FAD57C0359B1ABAD834271DFF161_terseLabel_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsAbstract_82B9FAD57C0359B1ABAD834271DFF161" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Required capacity and/or minimum payments [Abstract]</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsAbstract_82B9FAD57C0359B1ABAD834271DFF161_label_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsAbstract_82B9FAD57C0359B1ABAD834271DFF161" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Required Capacity And Or Minimum Payments Abstract</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsAbstract_82B9FAD57C0359B1ABAD834271DFF161_documentation_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsAbstract_82B9FAD57C0359B1ABAD834271DFF161" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Required Capacity And Or Minimum Payments Abstract</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_RequiredCapacityAndOrMinimumPaymentsAbstract" xlink:label="loc_nee_RequiredCapacityAndOrMinimumPaymentsAbstract_82B9FAD57C0359B1ABAD834271DFF161" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_RequiredCapacityAndOrMinimumPaymentsAbstract_82B9FAD57C0359B1ABAD834271DFF161" xlink:to="lab_nee_RequiredCapacityAndOrMinimumPaymentsAbstract_82B9FAD57C0359B1ABAD834271DFF161" xlink:type="arc" />
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear_4E68E5C7CCCBDF03D3DE834271DF4930_terseLabel_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear_4E68E5C7CCCBDF03D3DE834271DF4930" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Remainder of 2018</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear_4E68E5C7CCCBDF03D3DE834271DF4930_label_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear_4E68E5C7CCCBDF03D3DE834271DF4930" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Required Capacity And Or Minimum Payments Remainder Current Year</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear_4E68E5C7CCCBDF03D3DE834271DF4930_documentation_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear_4E68E5C7CCCBDF03D3DE834271DF4930" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated required capacity and/or minimum payments for the remainder of the current year.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear" xlink:label="loc_nee_RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear_4E68E5C7CCCBDF03D3DE834271DF4930" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear_4E68E5C7CCCBDF03D3DE834271DF4930" xlink:to="lab_nee_RequiredCapacityAndOrMinimumPaymentsRemainderCurrentYear_4E68E5C7CCCBDF03D3DE834271DF4930" xlink:type="arc" />
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsSecondYear_6E5975DC6C52B8399180834271DF05B9_terseLabel_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsSecondYear_6E5975DC6C52B8399180834271DF05B9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2019</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsSecondYear_6E5975DC6C52B8399180834271DF05B9_label_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsSecondYear_6E5975DC6C52B8399180834271DF05B9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Required Capacity And Or Minimum Payments Second Year</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsSecondYear_6E5975DC6C52B8399180834271DF05B9_documentation_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsSecondYear_6E5975DC6C52B8399180834271DF05B9" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated required capacity and/or minimum payments for the second year.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_RequiredCapacityAndOrMinimumPaymentsSecondYear" xlink:label="loc_nee_RequiredCapacityAndOrMinimumPaymentsSecondYear_6E5975DC6C52B8399180834271DF05B9" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_RequiredCapacityAndOrMinimumPaymentsSecondYear_6E5975DC6C52B8399180834271DF05B9" xlink:to="lab_nee_RequiredCapacityAndOrMinimumPaymentsSecondYear_6E5975DC6C52B8399180834271DF05B9" xlink:type="arc" />
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsThirdYear_40BC84BA7BE61B1DC51F834271DFF5E2_terseLabel_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsThirdYear_40BC84BA7BE61B1DC51F834271DFF5E2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2020</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsThirdYear_40BC84BA7BE61B1DC51F834271DFF5E2_label_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsThirdYear_40BC84BA7BE61B1DC51F834271DFF5E2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Required Capacity And Or Minimum Payments Third Year</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsThirdYear_40BC84BA7BE61B1DC51F834271DFF5E2_documentation_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsThirdYear_40BC84BA7BE61B1DC51F834271DFF5E2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated required capacity and/or minimum payments for the third year.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_RequiredCapacityAndOrMinimumPaymentsThirdYear" xlink:label="loc_nee_RequiredCapacityAndOrMinimumPaymentsThirdYear_40BC84BA7BE61B1DC51F834271DFF5E2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_RequiredCapacityAndOrMinimumPaymentsThirdYear_40BC84BA7BE61B1DC51F834271DFF5E2" xlink:to="lab_nee_RequiredCapacityAndOrMinimumPaymentsThirdYear_40BC84BA7BE61B1DC51F834271DFF5E2" xlink:type="arc" />
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsFourthYear_88123CE9646FB37AFECF834271DF2BB7_terseLabel_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsFourthYear_88123CE9646FB37AFECF834271DF2BB7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2021</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsFourthYear_88123CE9646FB37AFECF834271DF2BB7_label_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsFourthYear_88123CE9646FB37AFECF834271DF2BB7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Required Capacity And Or Minimum Payments Fourth Year</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsFourthYear_88123CE9646FB37AFECF834271DF2BB7_documentation_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsFourthYear_88123CE9646FB37AFECF834271DF2BB7" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated required capacity and/or minimum payments for the fourth year.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_RequiredCapacityAndOrMinimumPaymentsFourthYear" xlink:label="loc_nee_RequiredCapacityAndOrMinimumPaymentsFourthYear_88123CE9646FB37AFECF834271DF2BB7" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_RequiredCapacityAndOrMinimumPaymentsFourthYear_88123CE9646FB37AFECF834271DF2BB7" xlink:to="lab_nee_RequiredCapacityAndOrMinimumPaymentsFourthYear_88123CE9646FB37AFECF834271DF2BB7" xlink:type="arc" />
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsFifthYear_76E3BCFAE68F1230E2EA834271DFC82C_terseLabel_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsFifthYear_76E3BCFAE68F1230E2EA834271DFC82C" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">2022</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsFifthYear_76E3BCFAE68F1230E2EA834271DFC82C_label_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsFifthYear_76E3BCFAE68F1230E2EA834271DFC82C" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Required Capacity And Or Minimum Payments Fifth Year</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsFifthYear_76E3BCFAE68F1230E2EA834271DFC82C_documentation_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsFifthYear_76E3BCFAE68F1230E2EA834271DFC82C" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated required capacity and/or minimum payments for the fifth year.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_RequiredCapacityAndOrMinimumPaymentsFifthYear" xlink:label="loc_nee_RequiredCapacityAndOrMinimumPaymentsFifthYear_76E3BCFAE68F1230E2EA834271DFC82C" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_RequiredCapacityAndOrMinimumPaymentsFifthYear_76E3BCFAE68F1230E2EA834271DFC82C" xlink:to="lab_nee_RequiredCapacityAndOrMinimumPaymentsFifthYear_76E3BCFAE68F1230E2EA834271DFC82C" xlink:type="arc" />
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsAfterFifthYear_1580E223C7601A46F08E834271EE7D2A_terseLabel_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsAfterFifthYear_1580E223C7601A46F08E834271EE7D2A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Thereafter</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsAfterFifthYear_1580E223C7601A46F08E834271EE7D2A_label_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsAfterFifthYear_1580E223C7601A46F08E834271EE7D2A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Required Capacity And Or Minimum Payments After Fifth Year</link:label>
    <link:label id="lab_nee_RequiredCapacityAndOrMinimumPaymentsAfterFifthYear_1580E223C7601A46F08E834271EE7D2A_documentation_en-US" xlink:label="lab_nee_RequiredCapacityAndOrMinimumPaymentsAfterFifthYear_1580E223C7601A46F08E834271EE7D2A" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Estimated required capacity and/or minimum payments after the fifth year.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_RequiredCapacityAndOrMinimumPaymentsAfterFifthYear" xlink:label="loc_nee_RequiredCapacityAndOrMinimumPaymentsAfterFifthYear_1580E223C7601A46F08E834271EE7D2A" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_RequiredCapacityAndOrMinimumPaymentsAfterFifthYear_1580E223C7601A46F08E834271EE7D2A" xlink:to="lab_nee_RequiredCapacityAndOrMinimumPaymentsAfterFifthYear_1580E223C7601A46F08E834271EE7D2A" xlink:type="arc" />
    <link:label id="lab_nee_TotalCapacityPaymentsUnderContracts_6A231A767F9455E50488834271EE468E_terseLabel_en-US" xlink:label="lab_nee_TotalCapacityPaymentsUnderContracts_6A231A767F9455E50488834271EE468E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Capacity payments</link:label>
    <link:label id="lab_nee_TotalCapacityPaymentsUnderContracts_6A231A767F9455E50488834271EE468E_label_en-US" xlink:label="lab_nee_TotalCapacityPaymentsUnderContracts_6A231A767F9455E50488834271EE468E" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total Capacity Payments Under Contracts</link:label>
    <link:label id="lab_nee_TotalCapacityPaymentsUnderContracts_6A231A767F9455E50488834271EE468E_documentation_en-US" xlink:label="lab_nee_TotalCapacityPaymentsUnderContracts_6A231A767F9455E50488834271EE468E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">For capacity payments, total capacity payments under contracts, substantially all of which are recoverable through the capacity clause.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_TotalCapacityPaymentsUnderContracts" xlink:label="loc_nee_TotalCapacityPaymentsUnderContracts_6A231A767F9455E50488834271EE468E" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_TotalCapacityPaymentsUnderContracts_6A231A767F9455E50488834271EE468E" xlink:to="lab_nee_TotalCapacityPaymentsUnderContracts_6A231A767F9455E50488834271EE468E" xlink:type="arc" />
    <link:label id="lab_nee_TotalEnergyPaymentsUnderContracts_86A3A62205E6982F88F2834271EE91CB_terseLabel_en-US" xlink:label="lab_nee_TotalEnergyPaymentsUnderContracts_86A3A62205E6982F88F2834271EE91CB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Energy payments</link:label>
    <link:label id="lab_nee_TotalEnergyPaymentsUnderContracts_86A3A62205E6982F88F2834271EE91CB_label_en-US" xlink:label="lab_nee_TotalEnergyPaymentsUnderContracts_86A3A62205E6982F88F2834271EE91CB" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total Energy Payments Under Contracts</link:label>
    <link:label id="lab_nee_TotalEnergyPaymentsUnderContracts_86A3A62205E6982F88F2834271EE91CB_documentation_en-US" xlink:label="lab_nee_TotalEnergyPaymentsUnderContracts_86A3A62205E6982F88F2834271EE91CB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">For capacity payments, total energy payments under contracts, which are recoverable through the fuel clause.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_TotalEnergyPaymentsUnderContracts" xlink:label="loc_nee_TotalEnergyPaymentsUnderContracts_86A3A62205E6982F88F2834271EE91CB" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_TotalEnergyPaymentsUnderContracts_86A3A62205E6982F88F2834271EE91CB" xlink:to="lab_nee_TotalEnergyPaymentsUnderContracts_86A3A62205E6982F88F2834271EE91CB" xlink:type="arc" />
    <link:label id="lab_nee_CommitmentToInvest_C48490224DCAD74EB803834271EED937_terseLabel_en-US" xlink:label="lab_nee_CommitmentToInvest_C48490224DCAD74EB803834271EED937" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Commitment to invest</link:label>
    <link:label id="lab_nee_CommitmentToInvest_C48490224DCAD74EB803834271EED937_label_en-US" xlink:label="lab_nee_CommitmentToInvest_C48490224DCAD74EB803834271EED937" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">commitment to invest</link:label>
    <link:label id="lab_nee_CommitmentToInvest_C48490224DCAD74EB803834271EED937_documentation_en-US" xlink:label="lab_nee_CommitmentToInvest_C48490224DCAD74EB803834271EED937" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Commitment to invest in clean power and technology businesses.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_CommitmentToInvest" xlink:label="loc_nee_CommitmentToInvest_C48490224DCAD74EB803834271EED937" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_CommitmentToInvest_C48490224DCAD74EB803834271EED937" xlink:to="lab_nee_CommitmentToInvest_C48490224DCAD74EB803834271EED937" xlink:type="arc" />
    <link:label id="lab_nee_JointObligationsRemainderCurrentYear_95CA41681AE3149C57928344CE7F76E2_terseLabel_en-US" xlink:label="lab_nee_JointObligationsRemainderCurrentYear_95CA41681AE3149C57928344CE7F76E2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Joint Obligations Remainder Current Year</link:label>
    <link:label id="lab_nee_JointObligationsRemainderCurrentYear_95CA41681AE3149C57928344CE7F76E2_label_en-US" xlink:label="lab_nee_JointObligationsRemainderCurrentYear_95CA41681AE3149C57928344CE7F76E2" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Joint Obligations Remainder Current Year</link:label>
    <link:label id="lab_nee_JointObligationsRemainderCurrentYear_95CA41681AE3149C57928344CE7F76E2_documentation_en-US" xlink:label="lab_nee_JointObligationsRemainderCurrentYear_95CA41681AE3149C57928344CE7F76E2" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Joint Obligations of NEECH and NEER included in the NEER amounts above due  in the remainder of the current year</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_JointObligationsRemainderCurrentYear" xlink:label="loc_nee_JointObligationsRemainderCurrentYear_95CA41681AE3149C57928344CE7F76E2" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_JointObligationsRemainderCurrentYear_95CA41681AE3149C57928344CE7F76E2" xlink:to="lab_nee_JointObligationsRemainderCurrentYear_95CA41681AE3149C57928344CE7F76E2" xlink:type="arc" />
    <link:label id="lab_nee_JointObligationsSecondYear_5A06B566004BC47F65AF834271EE6080_terseLabel_en-US" xlink:label="lab_nee_JointObligationsSecondYear_5A06B566004BC47F65AF834271EE6080" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Joint Obligations Second Year</link:label>
    <link:label id="lab_nee_JointObligationsSecondYear_5A06B566004BC47F65AF834271EE6080_label_en-US" xlink:label="lab_nee_JointObligationsSecondYear_5A06B566004BC47F65AF834271EE6080" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Joint Obligations Second Year</link:label>
    <link:label id="lab_nee_JointObligationsSecondYear_5A06B566004BC47F65AF834271EE6080_documentation_en-US" xlink:label="lab_nee_JointObligationsSecondYear_5A06B566004BC47F65AF834271EE6080" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Joint Obligations of NEECH and NEER included in the NEER amounts above due in the next year</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_JointObligationsSecondYear" xlink:label="loc_nee_JointObligationsSecondYear_5A06B566004BC47F65AF834271EE6080" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_JointObligationsSecondYear_5A06B566004BC47F65AF834271EE6080" xlink:to="lab_nee_JointObligationsSecondYear_5A06B566004BC47F65AF834271EE6080" xlink:type="arc" />
    <link:label id="lab_nee_PublicUtilitiesTerminationofOperationsPayment_9953F817961CB25A5F0F834271EEA551_terseLabel_en-US" xlink:label="lab_nee_PublicUtilitiesTerminationofOperationsPayment_9953F817961CB25A5F0F834271EEA551" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Public utilities, termination of operations, payment</link:label>
    <link:label id="lab_nee_PublicUtilitiesTerminationofOperationsPayment_9953F817961CB25A5F0F834271EEA551_label_en-US" xlink:label="lab_nee_PublicUtilitiesTerminationofOperationsPayment_9953F817961CB25A5F0F834271EEA551" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Public Utilities, Termination of Operations, Payment</link:label>
    <link:label id="lab_nee_PublicUtilitiesTerminationofOperationsPayment_9953F817961CB25A5F0F834271EEA551_documentation_en-US" xlink:label="lab_nee_PublicUtilitiesTerminationofOperationsPayment_9953F817961CB25A5F0F834271EEA551" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Public Utilities, Termination of Operations, Payment</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_PublicUtilitiesTerminationofOperationsPayment" xlink:label="loc_nee_PublicUtilitiesTerminationofOperationsPayment_9953F817961CB25A5F0F834271EEA551" xlink:type="locator" />
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    <link:label id="lab_us-gaap_FairValueMeasurementFrequencyDomain_BDE1C73EA741A35F0B238E1D9904ABF7_terseLabel_en-US" xlink:label="lab_us-gaap_FairValueMeasurementFrequencyDomain_BDE1C73EA741A35F0B238E1D9904ABF7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement Frequency [Domain]</link:label>
    <link:label id="lab_us-gaap_FairValueMeasurementFrequencyDomain_BDE1C73EA741A35F0B238E1D9904ABF7_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementFrequencyDomain_BDE1C73EA741A35F0B238E1D9904ABF7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurement Frequency [Domain]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementFrequencyDomain" xlink:label="loc_us-gaap_FairValueMeasurementFrequencyDomain_BDE1C73EA741A35F0B238E1D9904ABF7" xlink:type="locator" />
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    <link:label id="lab_us-gaap_FairValueMeasurementsRecurringMember_D12A83CFEA437FBF36D28E1D99048DD4_label_en-US" xlink:label="lab_us-gaap_FairValueMeasurementsRecurringMember_D12A83CFEA437FBF36D28E1D99048DD4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Fair Value, Measurements, Recurring [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueMeasurementsRecurringMember" xlink:label="loc_us-gaap_FairValueMeasurementsRecurringMember_D12A83CFEA437FBF36D28E1D99048DD4" xlink:type="locator" />
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    <link:label id="lab_us-gaap_CurrencySwapMember_FC6BFA933DC95B94CBC48E1D99056E3B_verboseLabel_en-US" xlink:label="lab_us-gaap_CurrencySwapMember_FC6BFA933DC95B94CBC48E1D99056E3B" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Foreign Currency Swap [Member]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrencySwapMember" xlink:label="loc_us-gaap_CurrencySwapMember_FC6BFA933DC95B94CBC48E1D99056E3B" xlink:type="locator" />
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_3E64852EDA7949F5DCDD8E1D9906BEB1" xlink:type="locator" />
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    <link:label id="lab_us-gaap_AssetsFairValueDisclosureAbstract_758CDFC0CE1BAD491F128E1D9906608A_terseLabel_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosureAbstract_758CDFC0CE1BAD491F128E1D9906608A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Assets:</link:label>
    <link:label id="lab_us-gaap_AssetsFairValueDisclosureAbstract_758CDFC0CE1BAD491F128E1D9906608A_label_en-US" xlink:label="lab_us-gaap_AssetsFairValueDisclosureAbstract_758CDFC0CE1BAD491F128E1D9906608A" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Assets, Fair Value Disclosure [Abstract]</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsFairValueDisclosureAbstract" xlink:label="loc_us-gaap_AssetsFairValueDisclosureAbstract_758CDFC0CE1BAD491F128E1D9906608A" xlink:type="locator" />
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    <link:label id="lab_nee_CashEquivalentsAbstract_CD07A26D645A0D5D67958E1D990624DE_label_en-US" xlink:label="lab_nee_CashEquivalentsAbstract_CD07A26D645A0D5D67958E1D990624DE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash equivalents [Abstract]</link:label>
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    <link:loc xlink:href="nee-20180930.xsd#nee_CashEquivalentsAbstract" xlink:label="loc_nee_CashEquivalentsAbstract_CD07A26D645A0D5D67958E1D990624DE" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_CashEquivalentsAbstract_CD07A26D645A0D5D67958E1D990624DE" xlink:to="lab_nee_CashEquivalentsAbstract_CD07A26D645A0D5D67958E1D990624DE" xlink:type="arc" />
    <link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_7D579AA9449B5A1A788F8E1D99068D52_verboseLabel_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_7D579AA9449B5A1A788F8E1D99068D52" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Equity securities</link:label>
    <link:label id="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_7D579AA9449B5A1A788F8E1D99068D52_label_en-US" xlink:label="lab_us-gaap_CashAndCashEquivalentsFairValueDisclosure_7D579AA9449B5A1A788F8E1D99068D52" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Cash and Cash Equivalents, Fair Value Disclosure</link:label>
    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashAndCashEquivalentsFairValueDisclosure" xlink:label="loc_us-gaap_CashAndCashEquivalentsFairValueDisclosure_7D579AA9449B5A1A788F8E1D99068D52" xlink:type="locator" />
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    <link:label id="lab_nee_SpecialUseFundsAbstract_FD327D2487CC469AB57D8E1D99071E24_verboseLabel_en-US" xlink:label="lab_nee_SpecialUseFundsAbstract_FD327D2487CC469AB57D8E1D99071E24" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Special use funds:</link:label>
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    <link:loc xlink:href="nee-20180930.xsd#nee_SpecialUseFundsAbstract" xlink:label="loc_nee_SpecialUseFundsAbstract_FD327D2487CC469AB57D8E1D99071E24" xlink:type="locator" />
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    <link:label id="lab_nee_SpecialUseFundsEquitySecuritiesFairValueDisclosure_7CEFB8758C4A48837BDE8E1D99078915_documentation_en-US" xlink:label="lab_nee_SpecialUseFundsEquitySecuritiesFairValueDisclosure_7CEFB8758C4A48837BDE8E1D99078915" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. This element represents equity securities of special use funds.</link:label>
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    <link:label id="lab_nee_SpecialUseFundsUsGovernmentAndMunicipalBondsFairValueDisclosure_3E40558DD695D04020138E1D9907295D_verboseLabel_en-US" xlink:label="lab_nee_SpecialUseFundsUsGovernmentAndMunicipalBondsFairValueDisclosure_3E40558DD695D04020138E1D9907295D" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">U.S. Government and municipal bonds</link:label>
    <link:label id="lab_nee_SpecialUseFundsUsGovernmentAndMunicipalBondsFairValueDisclosure_3E40558DD695D04020138E1D9907295D_label_en-US" xlink:label="lab_nee_SpecialUseFundsUsGovernmentAndMunicipalBondsFairValueDisclosure_3E40558DD695D04020138E1D9907295D" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Special Use Funds Us Government and municipal bonds Fair Value Disclosure</link:label>
    <link:label id="lab_nee_SpecialUseFundsUsGovernmentAndMunicipalBondsFairValueDisclosure_3E40558DD695D04020138E1D9907295D_documentation_en-US" xlink:label="lab_nee_SpecialUseFundsUsGovernmentAndMunicipalBondsFairValueDisclosure_3E40558DD695D04020138E1D9907295D" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. This element represents U.S. Government and municipal bonds of special use funds.</link:label>
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    <link:label id="lab_nee_SpecialUseFundsCorporateDebtSecuritiesFairValueDisclosure_984940ADE7F6C5C37EBA8E1D9907E0D6_verboseLabel_en-US" xlink:label="lab_nee_SpecialUseFundsCorporateDebtSecuritiesFairValueDisclosure_984940ADE7F6C5C37EBA8E1D9907E0D6" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Corporate debt securities</link:label>
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    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_SpecialUseFundsCorporateDebtSecuritiesFairValueDisclosure_984940ADE7F6C5C37EBA8E1D9907E0D6" xlink:to="lab_nee_SpecialUseFundsCorporateDebtSecuritiesFairValueDisclosure_984940ADE7F6C5C37EBA8E1D9907E0D6" xlink:type="arc" />
    <link:label id="lab_nee_SpecialUseFundsMortgageBackedSecuritiesFairValueDisclosure_97EBC0475851F790176A8E1D99078320_verboseLabel_en-US" xlink:label="lab_nee_SpecialUseFundsMortgageBackedSecuritiesFairValueDisclosure_97EBC0475851F790176A8E1D99078320" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Mortgage-backed securities</link:label>
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    <link:label id="lab_nee_SpecialUseFundsOtherDebtSecuritiesFairValueDisclosure_55C0CC03A8D8CC40F45C8E1D990700B4_verboseLabel_en-US" xlink:label="lab_nee_SpecialUseFundsOtherDebtSecuritiesFairValueDisclosure_55C0CC03A8D8CC40F45C8E1D990700B4" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Other debt securities</link:label>
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    <link:label id="lab_nee_VariableInterestEntityBankruptcyRemoteSpecialPurposeSubsidiaryPrimaryBeneficiaryMember_DB8785BBC8369517EBF077F1D22D65D4_terseLabel_en-US" xlink:label="lab_nee_VariableInterestEntityBankruptcyRemoteSpecialPurposeSubsidiaryPrimaryBeneficiaryMember_DB8785BBC8369517EBF077F1D22D65D4" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Bankruptcy remote special purpose subsidiary [Member]</link:label>
    <link:label id="lab_nee_VariableInterestEntityBankruptcyRemoteSpecialPurposeSubsidiaryPrimaryBeneficiaryMember_DB8785BBC8369517EBF077F1D22D65D4_label_en-US" xlink:label="lab_nee_VariableInterestEntityBankruptcyRemoteSpecialPurposeSubsidiaryPrimaryBeneficiaryMember_DB8785BBC8369517EBF077F1D22D65D4" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entity Bankruptcy Remote Special Purpose Subsidiary Primary Beneficiary [Member]</link:label>
    <link:label id="lab_nee_VariableInterestEntityBankruptcyRemoteSpecialPurposeSubsidiaryPrimaryBeneficiaryMember_DB8785BBC8369517EBF077F1D22D65D4_documentation_en-US" xlink:label="lab_nee_VariableInterestEntityBankruptcyRemoteSpecialPurposeSubsidiaryPrimaryBeneficiaryMember_DB8785BBC8369517EBF077F1D22D65D4" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">A consolidated VIE that is a wholly-owned bankruptcy remote special purpose subsidiary formed in 2007 for the sole purpose of issuing storm-recovery bonds pursuant to the securitization provisions of the Florida Statutes and a financing order of the Florida Public Service Commission (FPSC).</link:label>
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    <link:label id="lab_nee_VariableInterestEntitiesGasAndOilPrimaryBeneficiaryMember_D63A5CF60A7A7DD1C6F977F1D22E3FB9_terseLabel_en-US" xlink:label="lab_nee_VariableInterestEntitiesGasAndOilPrimaryBeneficiaryMember_D63A5CF60A7A7DD1C6F977F1D22E3FB9" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable Interest Entities Gas And Oil Primary Beneficiary [Member]</link:label>
    <link:label id="lab_nee_VariableInterestEntitiesGasAndOilPrimaryBeneficiaryMember_D63A5CF60A7A7DD1C6F977F1D22E3FB9_label_en-US" xlink:label="lab_nee_VariableInterestEntitiesGasAndOilPrimaryBeneficiaryMember_D63A5CF60A7A7DD1C6F977F1D22E3FB9" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entities Gas And Oil Primary Beneficiary [Member]</link:label>
    <link:label id="lab_nee_VariableInterestEntitiesGasAndOilPrimaryBeneficiaryMember_D63A5CF60A7A7DD1C6F977F1D22E3FB9_documentation_en-US" xlink:label="lab_nee_VariableInterestEntitiesGasAndOilPrimaryBeneficiaryMember_D63A5CF60A7A7DD1C6F977F1D22E3FB9" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">NextEra Energy Resources' gas and/or oil consolidated VIEs.</link:label>
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    <link:label id="lab_nee_PhotovoltaicSolarFacilityMember_E8BBE9402909936C2F2377F1D22E5E0A_terseLabel_en-US" xlink:label="lab_nee_PhotovoltaicSolarFacilityMember_E8BBE9402909936C2F2377F1D22E5E0A" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Photovoltaic Solar Facility [Member]</link:label>
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    <link:label id="lab_nee_SpecialPurposeEntitythathasInsufficientEquityatRiskMember_80EFEF35E98850F647F977F1D22EC354_terseLabel_en-US" xlink:label="lab_nee_SpecialPurposeEntitythathasInsufficientEquityatRiskMember_80EFEF35E98850F647F977F1D22EC354" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Special Purpose Entity that has Insufficient Equity at Risk [Member]</link:label>
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    <link:label id="lab_nee_SpecialPurposeEntitythathasInsufficientEquityatRiskMember_80EFEF35E98850F647F977F1D22EC354_documentation_en-US" xlink:label="lab_nee_SpecialPurposeEntitythathasInsufficientEquityatRiskMember_80EFEF35E98850F647F977F1D22EC354" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Special Purpose Entity that has Insufficient Equity at Risk [Member]</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_SpecialPurposeEntitythathasInsufficientEquityatRiskMember" xlink:label="loc_nee_SpecialPurposeEntitythathasInsufficientEquityatRiskMember_80EFEF35E98850F647F977F1D22EC354" xlink:type="locator" />
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    <link:label id="lab_nee_VariableInterestEntitiesWindPrimaryBeneficiaryMember_DD3297E615F125B8FE5C77F1D22E509B_terseLabel_en-US" xlink:label="lab_nee_VariableInterestEntitiesWindPrimaryBeneficiaryMember_DD3297E615F125B8FE5C77F1D22E509B" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Wind variable interest entities [Member]</link:label>
    <link:label id="lab_nee_VariableInterestEntitiesWindPrimaryBeneficiaryMember_DD3297E615F125B8FE5C77F1D22E509B_label_en-US" xlink:label="lab_nee_VariableInterestEntitiesWindPrimaryBeneficiaryMember_DD3297E615F125B8FE5C77F1D22E509B" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entities Wind Primary Beneficiary [Member]</link:label>
    <link:label id="lab_nee_VariableInterestEntitiesWindPrimaryBeneficiaryMember_DD3297E615F125B8FE5C77F1D22E509B_documentation_en-US" xlink:label="lab_nee_VariableInterestEntitiesWindPrimaryBeneficiaryMember_DD3297E615F125B8FE5C77F1D22E509B" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">NextEra Energy Resources' wind consolidated VIEs.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_VariableInterestEntitiesWindPrimaryBeneficiaryMember" xlink:label="loc_nee_VariableInterestEntitiesWindPrimaryBeneficiaryMember_DD3297E615F125B8FE5C77F1D22E509B" xlink:type="locator" />
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    <link:label id="lab_nee_VariableInterestEntityOtherMember_E6DDC0124242257A208277F1D22FEDF5_terseLabel_en-US" xlink:label="lab_nee_VariableInterestEntityOtherMember_E6DDC0124242257A208277F1D22FEDF5" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Other variable interest entities [Member]</link:label>
    <link:label id="lab_nee_VariableInterestEntityOtherMember_E6DDC0124242257A208277F1D22FEDF5_label_en-US" xlink:label="lab_nee_VariableInterestEntityOtherMember_E6DDC0124242257A208277F1D22FEDF5" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entity Other [Member]</link:label>
    <link:label id="lab_nee_VariableInterestEntityOtherMember_E6DDC0124242257A208277F1D22FEDF5_documentation_en-US" xlink:label="lab_nee_VariableInterestEntityOtherMember_E6DDC0124242257A208277F1D22FEDF5" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Investments in certain special purpose entities, including but not limited to, investments in mortgage-backed securities, asset-backed securities and collateralized mortgage and debt obligations.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_VariableInterestEntityOtherMember" xlink:label="loc_nee_VariableInterestEntityOtherMember_E6DDC0124242257A208277F1D22FEDF5" xlink:type="locator" />
    <link:labelArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_nee_VariableInterestEntityOtherMember_E6DDC0124242257A208277F1D22FEDF5" xlink:to="lab_nee_VariableInterestEntityOtherMember_E6DDC0124242257A208277F1D22FEDF5" xlink:type="arc" />
    <link:label id="lab_nee_GasAndOrOilVariableInterestEntitiesMember_3412A44674DC7533C37C77F1D22FEC12_terseLabel_en-US" xlink:label="lab_nee_GasAndOrOilVariableInterestEntitiesMember_3412A44674DC7533C37C77F1D22FEC12" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Gas and or Oil Variable Interest Entities [Member]</link:label>
    <link:label id="lab_nee_GasAndOrOilVariableInterestEntitiesMember_3412A44674DC7533C37C77F1D22FEC12_label_en-US" xlink:label="lab_nee_GasAndOrOilVariableInterestEntitiesMember_3412A44674DC7533C37C77F1D22FEC12" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Gas and or Oil Variable Interest Entities [Member]</link:label>
    <link:label id="lab_nee_GasAndOrOilVariableInterestEntitiesMember_3412A44674DC7533C37C77F1D22FEC12_documentation_en-US" xlink:label="lab_nee_GasAndOrOilVariableInterestEntitiesMember_3412A44674DC7533C37C77F1D22FEC12" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Gas and or Oil Variable Interest Entities [Member]</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_GasAndOrOilVariableInterestEntitiesMember" xlink:label="loc_nee_GasAndOrOilVariableInterestEntitiesMember_3412A44674DC7533C37C77F1D22FEC12" xlink:type="locator" />
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    <link:label id="lab_us-gaap_VariableInterestEntityLineItems_1930DB4BF88D0754023077F1D22F4708_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityLineItems_1930DB4BF88D0754023077F1D22F4708" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable Interest Entity [Line Items]</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_VariableInterestEntityLineItems" xlink:label="loc_us-gaap_VariableInterestEntityLineItems_1930DB4BF88D0754023077F1D22F4708" xlink:type="locator" />
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    <link:label id="lab_nee_TotalNumberOfConsolidatedVariableInterestEntities_6815E754AB151074520D77F1D22F69CE_verboseLabel_en-US" xlink:label="lab_nee_TotalNumberOfConsolidatedVariableInterestEntities_6815E754AB151074520D77F1D22F69CE" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Total number of consolidated variable interest entities</link:label>
    <link:label id="lab_nee_TotalNumberOfConsolidatedVariableInterestEntities_6815E754AB151074520D77F1D22F69CE_label_en-US" xlink:label="lab_nee_TotalNumberOfConsolidatedVariableInterestEntities_6815E754AB151074520D77F1D22F69CE" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Total Number Of Consolidated Variable Interest Entities</link:label>
    <link:label id="lab_nee_TotalNumberOfConsolidatedVariableInterestEntities_6815E754AB151074520D77F1D22F69CE_documentation_en-US" xlink:label="lab_nee_TotalNumberOfConsolidatedVariableInterestEntities_6815E754AB151074520D77F1D22F69CE" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Total number of consolidated variable interest entities.</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_TotalNumberOfConsolidatedVariableInterestEntities" xlink:label="loc_nee_TotalNumberOfConsolidatedVariableInterestEntities_6815E754AB151074520D77F1D22F69CE" xlink:type="locator" />
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    <link:label id="lab_nee_SeniorSecuredDebtAggregatePrincipalAmountIssued_9DCD2C5F6FE09FC3968477F1D22F793E_terseLabel_en-US" xlink:label="lab_nee_SeniorSecuredDebtAggregatePrincipalAmountIssued_9DCD2C5F6FE09FC3968477F1D22F793E" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Senior Secured Debt Aggregate Principal Amount Issued</link:label>
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    <link:label id="lab_nee_SeniorSecuredDebtAggregatePrincipalAmountIssued_9DCD2C5F6FE09FC3968477F1D22F793E_documentation_en-US" xlink:label="lab_nee_SeniorSecuredDebtAggregatePrincipalAmountIssued_9DCD2C5F6FE09FC3968477F1D22F793E" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Aggregate principal amount of senior secured bonds (storm-recovery bonds) issued by the VIE.</link:label>
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    <link:loc xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfSeniorLongTermDebt_4EB3E0D5767B1D4E116377F1D230C7EB" xlink:type="locator" />
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    <link:label id="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities_F6C8EF10353A9B791CD777F1D2300245_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities_F6C8EF10353A9B791CD777F1D2300245" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Carrying amount of liabilities, consolidated variable interest entity</link:label>
    <link:label id="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities_F6C8EF10353A9B791CD777F1D2300245_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityConsolidatedCarryingAmountLiabilities_F6C8EF10353A9B791CD777F1D2300245" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entity, Consolidated, Carrying Amount, Liabilities</link:label>
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    <link:label id="lab_us-gaap_MinorityInterestOwnershipPercentageByParent_39D5312F778479E9E19C77F1D23085DA_terseLabel_en-US" xlink:label="lab_us-gaap_MinorityInterestOwnershipPercentageByParent_39D5312F778479E9E19C77F1D23085DA" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ownership percentage</link:label>
    <link:label id="lab_us-gaap_MinorityInterestOwnershipPercentageByParent_39D5312F778479E9E19C77F1D23085DA_label_en-US" xlink:label="lab_us-gaap_MinorityInterestOwnershipPercentageByParent_39D5312F778479E9E19C77F1D23085DA" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Noncontrolling Interest, Ownership Percentage by Parent</link:label>
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    <link:label id="lab_nee_NaturalGasAndOrOilElectricGeneratingFacilityCapacity_AE24711495FFE8EFB88077F1D2304A91_verboseLabel_en-US" xlink:label="lab_nee_NaturalGasAndOrOilElectricGeneratingFacilityCapacity_AE24711495FFE8EFB88077F1D2304A91" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Natural gas and or oil electric generating facility capacity (in megawatts)</link:label>
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    <link:label id="lab_us-gaap_VariableInterestEntityOwnershipPercentage_1A9D990899B2D6AB903B77F1D230C7B7_terseLabel_en-US" xlink:label="lab_us-gaap_VariableInterestEntityOwnershipPercentage_1A9D990899B2D6AB903B77F1D230C7B7" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Ownership percentage</link:label>
    <link:label id="lab_us-gaap_VariableInterestEntityOwnershipPercentage_1A9D990899B2D6AB903B77F1D230C7B7_label_en-US" xlink:label="lab_us-gaap_VariableInterestEntityOwnershipPercentage_1A9D990899B2D6AB903B77F1D230C7B7" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage</link:label>
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    <link:label id="lab_nee_VariableInterestEntitiesNumberofEntities_376E36301CAEBEC13BAF77F1D2311B47_terseLabel_en-US" xlink:label="lab_nee_VariableInterestEntitiesNumberofEntities_376E36301CAEBEC13BAF77F1D2311B47" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Number of entities with ownership interest contributed</link:label>
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    <link:loc xlink:href="nee-20180930.xsd#nee_VariableInterestEntitiesNumberofEntities" xlink:label="loc_nee_VariableInterestEntitiesNumberofEntities_376E36301CAEBEC13BAF77F1D2311B47" xlink:type="locator" />
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    <link:label id="lab_nee_SolarGeneratingFacilityCapability_D1CB31E8F89E45BBEFC777F1D2319CDB_terseLabel_en-US" xlink:label="lab_nee_SolarGeneratingFacilityCapability_D1CB31E8F89E45BBEFC777F1D2319CDB" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Solar generating facility capability (in MW)</link:label>
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    <link:label id="lab_nee_SolarGeneratingFacilityCapability_D1CB31E8F89E45BBEFC777F1D2319CDB_documentation_en-US" xlink:label="lab_nee_SolarGeneratingFacilityCapability_D1CB31E8F89E45BBEFC777F1D2319CDB" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Total capability of solar electric generating facilities</link:label>
    <link:loc xlink:href="nee-20180930.xsd#nee_SolarGeneratingFacilityCapability" xlink:label="loc_nee_SolarGeneratingFacilityCapability_D1CB31E8F89E45BBEFC777F1D2319CDB" xlink:type="locator" />
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    <link:label id="lab_us-gaap_ProceedsFromSaleOfLongtermInvestments_E31680CF29624BC218CE77F1D231783F_terseLabel_en-US" xlink:label="lab_us-gaap_ProceedsFromSaleOfLongtermInvestments_E31680CF29624BC218CE77F1D231783F" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Proceeds from sale of special purpose entity</link:label>
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    <link:label id="lab_nee_VariableInterestEntityGainLossonSaleofInvestmentBeforeTax_9BED9F780267B894626877F1D236F437_terseLabel_en-US" xlink:label="lab_nee_VariableInterestEntityGainLossonSaleofInvestmentBeforeTax_9BED9F780267B894626877F1D236F437" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xlink:type="resource" xml:lang="en-US">Variable interest entity, gain (loss) on sale of investment, before tax</link:label>
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    <link:label id="lab_nee_VariableInterestEntityGainLossonSaleofInvestmentBeforeTax_9BED9F780267B894626877F1D236F437_documentation_en-US" xlink:label="lab_nee_VariableInterestEntityGainLossonSaleofInvestmentBeforeTax_9BED9F780267B894626877F1D236F437" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Variable Interest Entity, Gain (Loss) on Sale of Investment, Before Tax</link:label>
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    <link:label id="lab_nee_WindElectricGeneratingFacilityCapability_0797455F83D330FC7C2777F1D236C947_verboseLabel_en-US" xlink:label="lab_nee_WindElectricGeneratingFacilityCapability_0797455F83D330FC7C2777F1D236C947" xlink:role="http://www.xbrl.org/2003/role/verboseLabel" xlink:type="resource" xml:lang="en-US">Wind electric generating facility capability (in megawatts)</link:label>
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