false--12-31 Q1 2020 0000783325 8878700000 9042300000 140000000 164800000 9200000 0.59 0.6325 0.01 0.01 325000000 325000000 315434531 315434531 8100000 56100000 7200000 58400000 65000000 5000000 3000000 5000000 400000 1300000 0.0050 1 0.33 0.0025 0.0050 0000783325 2020-01-01 2020-03-31 0000783325 wec:WECInfrastructureLLCMember wec:UpstreamWindEnergyCenterMember 2019-01-01 2019-12-31 0000783325 wec:OthernonutilityrevenuesMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember 2020-01-01 2020-03-31 0000783325 wec:OtheroperatingrevenuesMember 2020-01-01 2020-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 2020-03-31 0000783325 2019-01-01 2019-03-31 0000783325 2019-12-31 0000783325 2019-03-31 0000783325 2018-12-31 0000783325 wec:UpstreamWindEnergyLLCMember 2019-01-01 2019-03-31 0000783325 us-gaap:RetainedEarningsMember 2019-01-01 2019-03-31 0000783325 us-gaap:NoncontrollingInterestMember 2018-12-31 0000783325 us-gaap:AdditionalPaidInCapitalMember 2018-12-31 0000783325 us-gaap:CommonStockMember 2019-01-01 2019-03-31 0000783325 us-gaap:AdditionalPaidInCapitalMember 2019-01-01 2019-03-31 0000783325 us-gaap:ParentMember 2019-01-01 2019-03-31 0000783325 us-gaap:PreferredStockMember 2019-01-01 2019-03-31 0000783325 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2019-01-01 2019-03-31 0000783325 us-gaap:NoncontrollingInterestMember 2019-01-01 2019-03-31 0000783325 us-gaap:CommonStockMember 2019-03-31 0000783325 us-gaap:RetainedEarningsMember 2018-12-31 0000783325 us-gaap:RetainedEarningsMember 2019-03-31 0000783325 us-gaap:PreferredStockMember 2019-03-31 0000783325 us-gaap:CommonStockMember 2018-12-31 0000783325 us-gaap:ParentMember 2018-12-31 0000783325 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2019-03-31 0000783325 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2018-12-31 0000783325 us-gaap:PreferredStockMember 2018-12-31 0000783325 us-gaap:ParentMember 2019-03-31 0000783325 us-gaap:NoncontrollingInterestMember 2019-03-31 0000783325 us-gaap:AdditionalPaidInCapitalMember 2019-03-31 0000783325 us-gaap:ParentMember 2020-01-01 2020-03-31 0000783325 us-gaap:RetainedEarningsMember 2020-01-01 2020-03-31 0000783325 us-gaap:NoncontrollingInterestMember 2020-01-01 2020-03-31 0000783325 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2020-03-31 0000783325 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2020-01-01 2020-03-31 0000783325 us-gaap:NoncontrollingInterestMember 2020-03-31 0000783325 us-gaap:PreferredStockMember 2020-03-31 0000783325 us-gaap:CommonStockMember 2020-01-01 2020-03-31 0000783325 us-gaap:PreferredStockMember 2020-01-01 2020-03-31 0000783325 us-gaap:ParentMember 2020-03-31 0000783325 us-gaap:AdditionalPaidInCapitalMember 2020-01-01 2020-03-31 0000783325 us-gaap:AdditionalPaidInCapitalMember 2019-12-31 0000783325 us-gaap:AdditionalPaidInCapitalMember 2020-03-31 0000783325 us-gaap:RetainedEarningsMember 2019-12-31 0000783325 us-gaap:CommonStockMember 2019-12-31 0000783325 us-gaap:ParentMember 2019-12-31 0000783325 us-gaap:RetainedEarningsMember 2020-03-31 0000783325 us-gaap:NoncontrollingInterestMember 2019-12-31 0000783325 us-gaap:PreferredStockMember 2019-12-31 0000783325 us-gaap:CommonStockMember 2020-03-31 0000783325 us-gaap:AccumulatedOtherComprehensiveIncomeMember 2019-12-31 0000783325 us-gaap:ElectricityUsRegulatedMember 2020-03-31 0000783325 wec:TransmissionAffiliateMember 2020-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember 2020-03-31 0000783325 wec:WECInfrastructureLLCMember wec:UpstreamWindEnergyCenterMember 2019-01-31 0000783325 wec:WECInfrastructureLLCMember wec:UpstreamWindEnergyCenterMember 2019-01-01 2019-01-31 0000783325 wec:WECInfrastructureLLCMember wec:BloomingGroveWindEnergyCenterMember 2020-01-27 0000783325 wec:WECInfrastructureLLCMember wec:UpstreamWindEnergyCenterMember us-gaap:SubsequentEventMember 2020-04-30 0000783325 wec:WECInfrastructureLLCMember wec:ThunderheadWindEnergyLLCMember 2020-02-19 0000783325 wec:WECInfrastructureLLCMember wec:ThunderheadWindEnergyLLCMember 2019-08-31 0000783325 wec:WECInfrastructureLLCMember wec:ThunderheadWindEnergyLLCMember 2019-08-01 2019-08-31 0000783325 wec:WECInfrastructureLLCMember wec:BloomingGroveWindEnergyCenterMember 2020-02-19 0000783325 wec:WholesalecustomerMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:ResaleCustomersMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:WholesalecustomerMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OtherretailcustomerMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:DowntownMilwaukeeSteamCustomersMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:DowntownMilwaukeeSteamCustomersMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:LargecommercialandindustrialcustomersMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OtherretailcustomerMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OtherutilityMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:ResidentialcustomerMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:ResidentialcustomerMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:ResaleCustomersMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:TotalRetailCustomersMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OtherutilityMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:SmallcommercialandindustrialMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:LargecommercialandindustrialcustomersMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:SmallcommercialandindustrialMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:TotalRetailCustomersMember us-gaap:ElectricityUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember srt:ConsolidationEliminationsMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OtheroperatingrevenuesMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember us-gaap:CorporateAndOtherMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:PublicUtilityMember wec:OtheroperatingrevenuesMember 2019-01-01 2019-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember srt:ConsolidationEliminationsMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember srt:ConsolidationEliminationsMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember srt:ConsolidationEliminationsMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 srt:ConsolidationEliminationsMember 2019-01-01 2019-03-31 0000783325 us-gaap:CorporateAndOtherMember wec:OtheroperatingrevenuesMember 2019-01-01 2019-03-31 0000783325 us-gaap:CorporateAndOtherMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:NonUtilityEnergyInfrastructureMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 srt:ConsolidationEliminationsMember wec:OtheroperatingrevenuesMember 2019-01-01 2019-03-31 0000783325 wec:IllinoisMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:NonUtilityEnergyInfrastructureMember 2019-01-01 2019-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:WisconsinMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember us-gaap:CorporateAndOtherMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:NonUtilityEnergyInfrastructureMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:NonUtilityEnergyInfrastructureMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:NonUtilityEnergyInfrastructureMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:NonUtilityEnergyInfrastructureMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 srt:ConsolidationEliminationsMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:IllinoisMember wec:OtheroperatingrevenuesMember 2019-01-01 2019-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember us-gaap:CorporateAndOtherMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:PublicUtilityMember 2019-01-01 2019-03-31 0000783325 wec:OtherStatesMember wec:OtheroperatingrevenuesMember 2019-01-01 2019-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember us-gaap:CorporateAndOtherMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:NonUtilityEnergyInfrastructureMember wec:OtheroperatingrevenuesMember 2019-01-01 2019-03-31 0000783325 wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:CorporateAndOtherMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:WisconsinMember wec:OtheroperatingrevenuesMember 2019-01-01 2019-03-31 0000783325 wec:OtherStatesMember 2019-01-01 2019-03-31 0000783325 srt:ConsolidationEliminationsMember wec:OtheroperatingrevenuesMember 2020-01-01 2020-03-31 0000783325 us-gaap:CorporateAndOtherMember 2020-01-01 2020-03-31 0000783325 wec:NonUtilityEnergyInfrastructureMember 2020-01-01 2020-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember us-gaap:CorporateAndOtherMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:NonUtilityEnergyInfrastructureMember wec:OtheroperatingrevenuesMember 2020-01-01 2020-03-31 0000783325 wec:WisconsinMember wec:OtheroperatingrevenuesMember 2020-01-01 2020-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember srt:ConsolidationEliminationsMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:NonUtilityEnergyInfrastructureMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:NonUtilityEnergyInfrastructureMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OtherStatesMember wec:OtheroperatingrevenuesMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember srt:ConsolidationEliminationsMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:IllinoisMember wec:OtheroperatingrevenuesMember 2020-01-01 2020-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember srt:ConsolidationEliminationsMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:NonUtilityEnergyInfrastructureMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:WisconsinMember 2020-01-01 2020-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 srt:ConsolidationEliminationsMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:IllinoisMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember srt:ConsolidationEliminationsMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:CorporateAndOtherMember wec:OtheroperatingrevenuesMember 2020-01-01 2020-03-31 0000783325 us-gaap:CorporateAndOtherMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:PublicUtilityMember wec:OtheroperatingrevenuesMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:NonUtilityEnergyInfrastructureMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:PublicUtilityMember 2020-01-01 2020-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:NonUtilityEnergyInfrastructureMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember us-gaap:CorporateAndOtherMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OtherStatesMember 2020-01-01 2020-03-31 0000783325 wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 srt:ConsolidationEliminationsMember 2020-01-01 2020-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember us-gaap:CorporateAndOtherMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember us-gaap:CorporateAndOtherMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OtherutilityMember us-gaap:NaturalGasUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OtherutilityMember us-gaap:NaturalGasUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:TotalRetailCustomersMember us-gaap:NaturalGasUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:CommercialandIndustrialCustomerMember us-gaap:NaturalGasUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:ResidentialcustomerMember us-gaap:NaturalGasUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OtherutilityMember us-gaap:NaturalGasUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:TransportationcustomersMember us-gaap:NaturalGasUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OtherutilityMember us-gaap:NaturalGasUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:TotalRetailCustomersMember us-gaap:NaturalGasUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:CommercialandIndustrialCustomerMember us-gaap:NaturalGasUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:ResidentialcustomerMember us-gaap:NaturalGasUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:ResidentialcustomerMember us-gaap:NaturalGasUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:ResidentialcustomerMember us-gaap:NaturalGasUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:TransportationcustomersMember us-gaap:NaturalGasUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:CommercialandIndustrialCustomerMember us-gaap:NaturalGasUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:TotalRetailCustomersMember us-gaap:NaturalGasUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:CommercialandIndustrialCustomerMember us-gaap:NaturalGasUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:TransportationcustomersMember us-gaap:NaturalGasUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:TotalRetailCustomersMember us-gaap:NaturalGasUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:TransportationcustomersMember us-gaap:NaturalGasUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OtheroperatingrevenuesMember wec:LeasesMember 2020-01-01 2020-03-31 0000783325 wec:OtheroperatingrevenuesMember wec:LatepaymentchargesMember 2020-01-01 2020-03-31 0000783325 wec:OtheroperatingrevenuesMember wec:LatepaymentchargesMember 2019-01-01 2019-03-31 0000783325 wec:OtheroperatingrevenuesMember wec:AlternativerevenuesutilityMember 2020-01-01 2020-03-31 0000783325 wec:OtheroperatingrevenuesMember wec:AlternativerevenuesutilityMember 2019-01-01 2019-03-31 0000783325 wec:OtheroperatingrevenuesMember wec:LeasesMember 2019-01-01 2019-03-31 0000783325 wec:WePowerrevenuesMember 2020-01-01 2020-03-31 0000783325 wec:WePowerrevenuesMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember us-gaap:TransferredOverTimeMember us-gaap:AlternativeEnergyMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember us-gaap:TransferredOverTimeMember naics:ZZ811412 us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:DistributedrenewablesolarprojectrevenuesMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember us-gaap:TransferredOverTimeMember us-gaap:AlternativeEnergyMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:OtherMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:WePowerrevenuesMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:WePowerrevenuesMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:OtherMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OthernonutilityrevenuesMember wec:DistributedrenewablesolarprojectrevenuesMember us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:OthernonutilityrevenuesMember us-gaap:TransferredOverTimeMember naics:ZZ811412 us-gaap:RevenueFromContractWithCustomerMember 2019-01-01 2019-03-31 0000783325 wec:CommercialandIndustrialCustomerMember us-gaap:NaturalGasUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:ResidentialcustomerMember us-gaap:NaturalGasUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:ResidentialcustomerMember us-gaap:NaturalGasUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:TotalRetailCustomersMember us-gaap:NaturalGasUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:TransportationcustomersMember us-gaap:NaturalGasUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:TotalRetailCustomersMember us-gaap:NaturalGasUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:TransportationcustomersMember us-gaap:NaturalGasUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:TransportationcustomersMember us-gaap:NaturalGasUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OtherutilityMember us-gaap:NaturalGasUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OtherutilityMember us-gaap:NaturalGasUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:ResidentialcustomerMember us-gaap:NaturalGasUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:CommercialandIndustrialCustomerMember us-gaap:NaturalGasUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:TransportationcustomersMember us-gaap:NaturalGasUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OtherutilityMember us-gaap:NaturalGasUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:CommercialandIndustrialCustomerMember us-gaap:NaturalGasUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:OtherutilityMember us-gaap:NaturalGasUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:TotalRetailCustomersMember us-gaap:NaturalGasUsRegulatedMember wec:PublicUtilityMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:CommercialandIndustrialCustomerMember us-gaap:NaturalGasUsRegulatedMember wec:OtherStatesMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:TotalRetailCustomersMember us-gaap:NaturalGasUsRegulatedMember wec:WisconsinMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:ResidentialcustomerMember us-gaap:NaturalGasUsRegulatedMember wec:IllinoisMember us-gaap:TransferredOverTimeMember us-gaap:RevenueFromContractWithCustomerMember 2020-01-01 2020-03-31 0000783325 wec:PublicUtilityMember 2020-03-31 0000783325 wec:NonUtilityEnergyInfrastructureMember 2020-03-31 0000783325 wec:WisconsinMember 2020-03-31 0000783325 wec:OtherStatesMember 2020-03-31 0000783325 us-gaap:CorporateAndOtherMember 2020-03-31 0000783325 wec:IllinoisMember 2020-03-31 0000783325 wec:IllinoisMember 2019-12-31 0000783325 wec:PublicUtilityMember 2019-12-31 0000783325 wec:OtherStatesMember 2019-12-31 0000783325 wec:WisconsinMember 2019-12-31 0000783325 us-gaap:CorporateAndOtherMember 2019-12-31 0000783325 wec:COVID19Member 2020-01-01 2020-03-31 0000783325 us-gaap:RemovalCostsMember 2020-03-31 0000783325 wec:DecouplingMember 2019-12-31 0000783325 us-gaap:PensionAndOtherPostretirementPlansCostsMember 2020-03-31 0000783325 us-gaap:RemovalCostsMember 2019-12-31 0000783325 wec:EnergyCostsRefundableThroughRateAdjustmentsMember 2020-03-31 0000783325 wec:ElectricTransmissionCostsMember 2020-03-31 0000783325 wec:DecouplingMember 2020-03-31 0000783325 us-gaap:OtherRegulatoryAssetsLiabilitiesMember 2020-03-31 0000783325 wec:UncollectibleExpenseMember 2020-03-31 0000783325 wec:ElectricTransmissionCostsMember 2019-12-31 0000783325 us-gaap:DeferredIncomeTaxChargesMember 2019-12-31 0000783325 wec:EarningsSharingMechanismsMember 2019-12-31 0000783325 wec:EnergyCostsRefundableThroughRateAdjustmentsMember 2019-12-31 0000783325 wec:EarningsSharingMechanismsMember 2020-03-31 0000783325 us-gaap:OtherRegulatoryAssetsLiabilitiesMember 2019-12-31 0000783325 us-gaap:PensionAndOtherPostretirementPlansCostsMember 2019-12-31 0000783325 us-gaap:DeferredIncomeTaxChargesMember 2020-03-31 0000783325 wec:EnergyEfficiencyProgramCostsMember 2020-03-31 0000783325 wec:EnergyEfficiencyProgramCostsMember 2019-12-31 0000783325 wec:UncollectibleExpenseMember 2019-12-31 0000783325 us-gaap:PensionAndOtherPostretirementPlansCostsMember 2020-03-31 0000783325 us-gaap:OtherRegulatoryAssetsLiabilitiesMember 2020-03-31 0000783325 wec:WePowerGenerationMember 2020-03-31 0000783325 us-gaap:EnvironmentalRestorationCostsMember 2020-03-31 0000783325 us-gaap:DeferredDerivativeGainLossMember 2020-03-31 0000783325 wec:WePowerGenerationMember 2019-12-31 0000783325 wec:UncollectibleExpenseMember 2019-12-31 0000783325 us-gaap:EnvironmentalRestorationCostsMember 2019-12-31 0000783325 wec:SystemSupportResourceMember 2020-03-31 0000783325 us-gaap:AssetRetirementObligationCostsMember 2020-03-31 0000783325 us-gaap:StrandedCostsMember 2019-12-31 0000783325 us-gaap:OtherRegulatoryAssetsLiabilitiesMember 2019-12-31 0000783325 us-gaap:DeferredIncomeTaxChargesMember 2020-03-31 0000783325 us-gaap:StrandedCostsMember 2020-03-31 0000783325 us-gaap:AssetRetirementObligationCostsMember 2019-12-31 0000783325 us-gaap:DeferredIncomeTaxChargesMember 2019-12-31 0000783325 wec:UncollectibleExpenseMember 2020-03-31 0000783325 us-gaap:DeferredDerivativeGainLossMember 2019-12-31 0000783325 wec:SystemSupportResourceMember 2019-12-31 0000783325 us-gaap:PensionAndOtherPostretirementPlansCostsMember 2019-12-31 0000783325 us-gaap:EmployeeStockOptionMember 2020-01-01 2020-03-31 0000783325 us-gaap:SubsequentEventMember 2020-04-01 2020-06-30 0000783325 us-gaap:RestrictedStockMember 2020-01-01 2020-03-31 0000783325 us-gaap:PerformanceSharesMember 2020-01-01 2020-03-31 0000783325 us-gaap:NotesPayableOtherPayablesMember 2019-12-31 0000783325 us-gaap:CommercialPaperMember 2020-03-31 0000783325 us-gaap:CommercialPaperMember 2019-12-31 0000783325 wec:TransmissionAffiliateMember 2020-01-01 2020-03-31 0000783325 us-gaap:NotesPayableOtherPayablesMember 2020-03-31 0000783325 us-gaap:CommercialPaperMember 2020-01-01 2020-03-31 0000783325 us-gaap:NotesPayableOtherPayablesMember 2020-03-30 2020-03-30 0000783325 srt:ParentCompanyMember us-gaap:LineOfCreditMember 2020-03-31 0000783325 wec:WisconsinPublicServiceCorporationMember us-gaap:RevolvingCreditFacilityMember 2020-03-31 0000783325 wec:WisconsinElectricPowerCompanyMember us-gaap:RevolvingCreditFacilityMember 2020-03-31 0000783325 wec:WisconsinGasLLCMember us-gaap:RevolvingCreditFacilityMember 2020-03-31 0000783325 srt:ParentCompanyMember us-gaap:RevolvingCreditFacilityMember 2020-03-31 0000783325 wec:ThePeoplesGasLightAndCokeCompanyMember us-gaap:RevolvingCreditFacilityMember 2020-03-31 0000783325 wec:MGUMember wec:MGUSeniorNotes2.69dueMay12025Member us-gaap:SubsequentEventMember 2020-04-29 2020-04-29 0000783325 wec:MinnesotaEnergyResourcesCorporationMember wec:MERCSeniorNotes2.69dueMay12025Member us-gaap:SubsequentEventMember 2020-04-29 2020-04-29 0000783325 wec:MinnesotaEnergyResourcesCorporationMember wec:MERCSeniorNotes2.69dueMay12025Member us-gaap:SubsequentEventMember 2020-04-29 0000783325 wec:MGUMember wec:MGUSeniorNotes2.69dueMay12025Member us-gaap:SubsequentEventMember 2020-04-29 0000783325 wec:ElectricRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:TaxCutsAndJobsActOf2017Member wec:Rates2020and2021Member 2019-12-01 2019-12-31 0000783325 wec:NaturalGasRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:TaxCutsAndJobsActOf2017Member wec:Rates2020and2021Member 2019-12-01 2019-12-31 0000783325 us-gaap:EstimateOfFairValueFairValueDisclosureMember 2020-03-31 0000783325 us-gaap:CarryingReportedAmountFairValueDisclosureMember 2020-03-31 0000783325 us-gaap:EstimateOfFairValueFairValueDisclosureMember 2019-12-31 0000783325 us-gaap:CarryingReportedAmountFairValueDisclosureMember 2019-12-31 0000783325 wec:CommodityContractFinancialTransmissionRightsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 wec:CommodityContractFinancialTransmissionRightsMember us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 wec:CommodityContractNaturalGasMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 us-gaap:InterestRateSwapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 us-gaap:CoalContractMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 wec:CommodityContractNaturalGasMember us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 us-gaap:CoalContractMember us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 wec:CommodityContractNaturalGasMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 us-gaap:CoalContractMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 us-gaap:CoalContractMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 us-gaap:InterestRateSwapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 wec:CommodityContractFinancialTransmissionRightsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 wec:CommodityContractNaturalGasMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 us-gaap:InterestRateSwapMember us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 wec:CommodityContractFinancialTransmissionRightsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 us-gaap:InterestRateSwapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2020-03-31 0000783325 wec:CommodityContractNaturalGasMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 wec:CommodityContractNaturalGasMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:CoalContractMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 wec:CommodityContractNaturalGasMember us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:CoalContractMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:InterestRateSwapMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:CoalContractMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 wec:CommodityContractFinancialTransmissionRightsMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 wec:CommodityContractNaturalGasMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:CoalContractMember us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 wec:CommodityContractFinancialTransmissionRightsMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 wec:CommodityContractFinancialTransmissionRightsMember us-gaap:FairValueInputsLevel2Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:InterestRateSwapMember us-gaap:FairValueInputsLevel1Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:InterestRateSwapMember us-gaap:FairValueInputsLevel3Member us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:InterestRateSwapMember us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 wec:CommodityContractFinancialTransmissionRightsMember us-gaap:FairValueMeasurementsRecurringMember 2019-12-31 0000783325 us-gaap:InterestRateSwapMember 2019-12-31 0000783325 wec:CommodityContractFinancialTransmissionRightsMember 2019-12-31 0000783325 us-gaap:CoalContractMember 2020-03-31 0000783325 us-gaap:CoalContractMember 2019-12-31 0000783325 wec:CommodityContractNaturalGasMember 2020-03-31 0000783325 wec:CommodityContractNaturalGasMember 2019-12-31 0000783325 us-gaap:InterestRateSwapMember 2020-03-31 0000783325 wec:CommodityContractFinancialTransmissionRightsMember 2020-03-31 0000783325 srt:ParentCompanyMember us-gaap:InterestRateSwapMember 2020-03-31 0000783325 srt:ParentCompanyMember wec:WECEnergyGroupJuniorNotesDue2067Member 2020-03-31 0000783325 wec:CommodityContractNaturalGasMember 2020-01-01 2020-03-31 0000783325 wec:CommodityContractFinancialTransmissionRightsMember 2019-01-01 2019-03-31 0000783325 wec:CommodityContractNaturalGasMember 2019-01-01 2019-03-31 0000783325 wec:CommodityContractFinancialTransmissionRightsMember 2020-01-01 2020-03-31 0000783325 srt:ParentCompanyMember us-gaap:InterestRateSwapMember 2020-01-01 2020-03-31 0000783325 srt:ParentCompanyMember us-gaap:InterestRateSwapMember 2019-01-01 2019-03-31 0000783325 wec:WECInfrastructureLLCMember wec:CommodityTransactionsGuaranteeMember 2020-03-31 0000783325 us-gaap:IndemnificationGuaranteeMember 2020-03-31 0000783325 wec:UpperMichiganEnergyResourcesCorporationMember wec:CommodityTransactionsGuaranteeMember 2020-03-31 0000783325 wec:BluewaterMember wec:CommodityTransactionsGuaranteeMember 2020-03-31 0000783325 us-gaap:GuaranteeTypeOtherMember 2020-03-31 0000783325 us-gaap:StandbyLettersOfCreditMember 2020-03-31 0000783325 wec:CommodityTransactionsGuaranteeMember 2020-03-31 0000783325 us-gaap:SuretyBondMember 2020-03-31 0000783325 us-gaap:PensionPlansDefinedBenefitMember 2020-01-01 2020-03-31 0000783325 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2020-01-01 2020-03-31 0000783325 us-gaap:PensionPlansDefinedBenefitMember 2020-03-31 0000783325 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2020-03-31 0000783325 us-gaap:PensionPlansDefinedBenefitMember 2019-01-01 2019-03-31 0000783325 us-gaap:OtherPostretirementBenefitPlansDefinedBenefitMember 2019-01-01 2019-03-31 0000783325 wec:WisconsinSegmentMember 2020-03-31 0000783325 wec:TransmissionAffiliateMember 2019-12-31 0000783325 wec:TransmissionAffiliateMember 2019-01-01 2019-03-31 0000783325 wec:ATCHoldCoLLCMember 2019-12-31 0000783325 wec:ATCHoldCoLLCMember 2020-03-31 0000783325 wec:ATCHoldCoLLCMember 2020-01-01 2020-03-31 0000783325 wec:WisconsinPublicServiceCorporationMember 2020-03-31 0000783325 wec:ATCHoldCoLLCMember 2019-01-01 2019-03-31 0000783325 wec:TransmissionAffiliateMember 2018-12-31 0000783325 wec:ATCHoldCoLLCMember 2019-03-31 0000783325 wec:ATCHoldCoLLCMember 2018-12-31 0000783325 wec:TransmissionAffiliateMember 2019-03-31 0000783325 us-gaap:IntersegmentEliminationMember 2019-01-01 2019-03-31 0000783325 us-gaap:CorporateAndOtherMember wec:ExternalRevenuesMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:WisconsinMember wec:IntersegmentTransactionsMember 2019-01-01 2019-03-31 0000783325 wec:ExternalRevenuesMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:OtherStatesMember wec:IntersegmentTransactionsMember 2019-01-01 2019-03-31 0000783325 us-gaap:IntersegmentEliminationMember wec:ExternalRevenuesMember 2019-01-01 2019-03-31 0000783325 wec:NonUtilityEnergyInfrastructureMember wec:IntersegmentTransactionsMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:OtherStatesMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:WisconsinMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:WisconsinMember wec:ExternalRevenuesMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:IllinoisMember 2019-01-01 2019-03-31 0000783325 wec:ElectricTransmissionSegmentMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:IllinoisMember wec:ExternalRevenuesMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:IllinoisMember wec:IntersegmentTransactionsMember 2019-01-01 2019-03-31 0000783325 wec:NonUtilityEnergyInfrastructureMember wec:ExternalRevenuesMember 2019-01-01 2019-03-31 0000783325 us-gaap:IntersegmentEliminationMember wec:IntersegmentTransactionsMember 2019-01-01 2019-03-31 0000783325 wec:ElectricTransmissionSegmentMember wec:IntersegmentTransactionsMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:OtherStatesMember wec:ExternalRevenuesMember 2019-01-01 2019-03-31 0000783325 wec:IntersegmentTransactionsMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:ExternalRevenuesMember 2019-01-01 2019-03-31 0000783325 wec:ElectricTransmissionSegmentMember wec:ExternalRevenuesMember 2019-01-01 2019-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:IntersegmentTransactionsMember 2019-01-01 2019-03-31 0000783325 us-gaap:CorporateAndOtherMember wec:IntersegmentTransactionsMember 2019-01-01 2019-03-31 0000783325 wec:ElectricTransmissionSegmentMember 2020-01-01 2020-03-31 0000783325 us-gaap:IntersegmentEliminationMember wec:IntersegmentTransactionsMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:IllinoisMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:OtherStatesMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:OtherStatesMember wec:IntersegmentTransactionsMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:WisconsinMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:WisconsinMember wec:ExternalRevenuesMember 2020-01-01 2020-03-31 0000783325 wec:NonUtilityEnergyInfrastructureMember wec:ExternalRevenuesMember 2020-01-01 2020-03-31 0000783325 us-gaap:IntersegmentEliminationMember wec:ExternalRevenuesMember 2020-01-01 2020-03-31 0000783325 us-gaap:IntersegmentEliminationMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:WisconsinMember wec:IntersegmentTransactionsMember 2020-01-01 2020-03-31 0000783325 wec:ElectricTransmissionSegmentMember wec:IntersegmentTransactionsMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:ExternalRevenuesMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:IntersegmentTransactionsMember 2020-01-01 2020-03-31 0000783325 wec:ElectricTransmissionSegmentMember wec:ExternalRevenuesMember 2020-01-01 2020-03-31 0000783325 us-gaap:CorporateAndOtherMember wec:IntersegmentTransactionsMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:IllinoisMember wec:ExternalRevenuesMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:IllinoisMember wec:IntersegmentTransactionsMember 2020-01-01 2020-03-31 0000783325 wec:NonUtilityEnergyInfrastructureMember wec:IntersegmentTransactionsMember 2020-01-01 2020-03-31 0000783325 us-gaap:PublicUtilitiesMember wec:OtherStatesMember wec:ExternalRevenuesMember 2020-01-01 2020-03-31 0000783325 wec:ExternalRevenuesMember 2020-01-01 2020-03-31 0000783325 wec:IntersegmentTransactionsMember 2020-01-01 2020-03-31 0000783325 us-gaap:CorporateAndOtherMember wec:ExternalRevenuesMember 2020-01-01 2020-03-31 0000783325 wec:BishopHillIIIWindEnergyCenterMember wec:NonUtilityEnergyInfrastructureMember 2020-03-31 0000783325 wec:ATCHoldCoLLCMember wec:ElectricTransmissionSegmentMember 2020-03-31 0000783325 wec:AmericanTransmissionCompanyLLCMember wec:ElectricTransmissionSegmentMember 2020-03-31 0000783325 wec:CoyoteRidgeWindLLCMember wec:NonUtilityEnergyInfrastructureMember 2020-03-31 0000783325 wec:UpstreamWindEnergyCenterMember wec:NonUtilityEnergyInfrastructureMember 2020-03-31 0000783325 wec:AmericanTransmissionCompanyLLCMember 2019-12-31 0000783325 wec:PurchasedPowerAgreementMember 2020-03-31 0000783325 wec:AmericanTransmissionCompanyLLCMember 2020-03-31 0000783325 wec:ATCHoldCoLLCMember 2020-03-31 0000783325 wec:PurchasedPowerAgreementMember 2020-01-01 2020-03-31 0000783325 wec:ATCHoldCoLLCMember 2019-12-31 0000783325 us-gaap:ElectricityUsRegulatedMember srt:MaximumMember wec:ClimateChangeMember 2019-04-01 2019-04-30 0000783325 us-gaap:ElectricityUsRegulatedMember wec:SteamElectricEffluentGuidelinesMember 2020-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:MercuryandAirToxicsMember 2018-12-01 2018-12-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:ClimateChangeMember 2020-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:ClimateChangeMember 2020-01-01 2020-03-31 0000783325 us-gaap:ElectricityUsRegulatedMember wec:ClimateChangeMember 2018-01-01 2019-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:ManufacturedGasPlantRemediationMember 2020-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:ManufacturedGasPlantRemediationMember us-gaap:EnvironmentalRestorationCostsMember 2019-12-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:ManufacturedGasPlantRemediationMember us-gaap:EnvironmentalRestorationCostsMember 2020-03-31 0000783325 us-gaap:NaturalGasUsRegulatedMember wec:ManufacturedGasPlantRemediationMember 2019-12-31 0000783325 wec:WisconsinElectricPowerCompanyMember wec:SteamRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinElectricPowerCompanyMember wec:NaturalGasRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinElectricPowerCompanyMember wec:ElectricRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinPublicServiceCorporationMember wec:NaturalGasRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinGasLLCMember wec:NaturalGasRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinElectricPowerCompanyMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020and2021Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinPublicServiceCorporationMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020and2021Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinGasLLCMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020and2021Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinPublicServiceCorporationMember wec:ElectricRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinElectricPowerCompanyMember wec:BadgerHollowSolarFarmIIMember wec:PublicServiceCommissionOfWisconsinPSCWMember 2020-03-01 0000783325 wec:WisconsinElectricPowerCompanyMember wec:ElectricRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020and2021Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinGasLLCMember wec:NaturalGasRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:TaxCutsAndJobsActOf2017Member wec:Rates2020Member 2019-12-01 2019-12-31 0000783325 wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020and2021Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinElectricPowerCompanyMember wec:NaturalGasRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:TaxCutsAndJobsActOf2017Member wec:Rates2020Member 2019-12-01 2019-12-31 0000783325 wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rate2018And2019Member 2017-09-01 2017-09-30 0000783325 wec:WisconsinPublicServiceCorporationMember wec:ElectricRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020and2021Member 2017-09-01 2017-09-30 0000783325 wec:WisconsinPublicServiceCorporationMember wec:ElectricRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:TaxCutsAndJobsActOf2017Member wec:Rates2021Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinPublicServiceCorporationMember wec:ElectricRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:EarningsSharingMechanismsMember wec:Rates2020and2021Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinPublicServiceCorporationMember wec:ElectricRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rates2020and2021Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinPublicServiceCorporationMember wec:NaturalGasRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:TaxCutsAndJobsActOf2017Member wec:Rates2020Member 2019-12-01 2019-12-31 0000783325 wec:PublicServiceCommissionOfWisconsinPSCWMember 2020-03-01 2020-03-31 0000783325 wec:IllinoisCommerceCommissionICCMember 2020-03-01 2020-03-31 0000783325 wec:WisconsinPublicServiceCorporationMember wec:ElectricRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:ReACTMember wec:Rates2020and2021Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinElectricPowerCompanyMember wec:ElectricRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:TaxCutsAndJobsActOf2017Member wec:Rates2020Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinPublicServiceCorporationMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rate2018And2019Member 2017-09-01 2017-09-30 0000783325 wec:WisconsinElectricPowerCompanyMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rate2018And2019Member 2018-01-01 2019-12-31 0000783325 wec:LiquefiedNaturalGasFacilitiesMember wec:PublicServiceCommissionOfWisconsinPSCWMember 2019-11-01 0000783325 wec:WisconsinPublicServiceCorporationMember wec:ElectricRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:TaxCutsAndJobsActOf2017Member wec:Rates2020Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinGasLLCMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rate2018And2019Member 2017-09-01 2017-09-30 0000783325 wec:WisconsinElectricPowerCompanyMember wec:LiquefiedNaturalGasFacilitiesMember wec:PublicServiceCommissionOfWisconsinPSCWMember 2019-11-01 0000783325 wec:ThePeoplesGasLightAndCokeCompanyMember wec:IllinoisCommerceCommissionICCMember 2020-03-31 0000783325 wec:WisconsinElectricPowerCompanyMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:Rate2018And2019Member 2017-09-01 2017-09-30 0000783325 wec:WisconsinGasLLCMember wec:LiquefiedNaturalGasFacilitiesMember wec:PublicServiceCommissionOfWisconsinPSCWMember 2019-11-01 0000783325 wec:WisconsinElectricPowerCompanyMember wec:ElectricRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:TaxCutsAndJobsActOf2017Member wec:Rates2021Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinPublicServiceCorporationMember wec:NaturalGasRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:TaxCutsAndJobsActOf2017Member wec:Rates2021Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinElectricPowerCompanyMember wec:NaturalGasRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:TaxCutsAndJobsActOf2017Member wec:Rates2021Member 2019-12-01 2019-12-31 0000783325 wec:WisconsinGasLLCMember wec:NaturalGasRateRequestMember wec:PublicServiceCommissionOfWisconsinPSCWMember wec:TaxCutsAndJobsActOf2017Member wec:Rates2021Member 2019-12-01 2019-12-31 iso4217:USD wec:customer iso4217:USD xbrli:shares utreg:MW xbrli:shares xbrli:pure wec:generating_units wec:solar_projects utreg:MMBTU wec:change wec:degreecelsius wec:segment wec:Assurance utreg:Bcf utreg:MWh wec:order wec:States wec:utility wec:number_of_interest_rate_swaps

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, DC 20549
FORM 10-Q
(Mark One)

☒ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2020
OR

☐ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from ________________ to ___________________

Commission File Number |  | Registrant; State of Incorporation; Address; and Telephone Number |  | IRS Employer Identification No.
001-09057 |  | WEC ENERGY GROUP, INC. |  | 39-1391525

(A Wisconsin Corporation)
231 West Michigan Street
P.O. Box 1331
Milwaukee, WI 53201
(414) 221-2345
Securities registered pursuant to Section 12(b) of the Act:

Title of Each Class |  | Trading Symbol(s) |  | Name of Each Exchange on Which Registered
Common Stock, $.01 Par Value |  | WEC |  | New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Yes ☒ No ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).
Yes ☒ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

| Large accelerated filer | ☒ |  | Accelerated filer | ☐ |
| Non-accelerated filer | ☐ |  | Smaller reporting company | ☐
|  |  |  | Emerging growth company | ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Yes ☐ No ☒
Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date (March 31, 2020):
Common Stock, $.01 Par Value, 315,434,531 shares outstanding

Table of Contents
WEC ENERGY GROUP, INC.
QUARTERLY REPORT ON FORM 10-Q
For the Quarter Ended March 31, 2020
TABLE OF CONTENTS

|  |  | Page
| CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION |  | 1
PART I. | FINANCIAL INFORMATION |  | 3
ITEM 1. | FINANCIAL STATEMENTS (UNAUDITED) |  | 3
| Condensed Consolidated Income Statements |  | 3
| Condensed Consolidated Statements of Comprehensive Income |  | 4
| Condensed Consolidated Balance Sheets |  | 5
| Condensed Consolidated Statements of Cash Flows |  | 6
| Condensed Consolidated Statements of Equity |  | 7
| Notes to Condensed Consolidated Financial Statements |  | 8
|  |  | Page |
| Note 1 | General Information | 8 |
| Note 2 | Acquisitions | 8 |
| Note 3 | Operating Revenues | 9 |
| Note 4 | Credit Losses | 11 |
| Note 5 | Regulatory Assets and Liabilities | 13 |
| Note 6 | Common Equity | 14 |
| Note 7 | Short-Term Debt and Lines of Credit | 15 |
| Note 8 | Long-Term Debt | 15 |
| Note 9 | Materials, Supplies, and Inventories | 16 |
| Note 10 | Income Taxes | 16 |
| Note 11 | Fair Value Measurements | 17 |
| Note 12 | Derivative Instruments | 18 |
| Note 13 | Guarantees | 20 |
| Note 14 | Employee Benefits | 21 |
| Note 15 | Goodwill | 21 |
| Note 16 | Investment in Transmission Affiliates | 22 |
| Note 17 | Segment Information | 23 |
| Note 18 | Variable Interest Entities | 24 |
| Note 19 | Commitments and Contingencies | 25 |
| Note 20 | Supplemental Cash Flow Information | 28 |
| Note 21 | Regulatory Environment | 29 |
| Note 22 | New Accounting Pronouncements | 32 |
ITEM 2. | MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS |  | 34
ITEM 3. | QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK |  | 55
ITEM 4. | CONTROLS AND PROCEDURES |  | 55
PART II. | OTHER INFORMATION |  | 56
ITEM 1. | LEGAL PROCEEDINGS |  | 56
ITEM 1A. | RISK FACTORS |  | 56
ITEM 2. | UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS |  | 57
ITEM 6. | EXHIBITS |  | 58
SIGNATURE |  |  | 59

03/31/2020 Form 10-Q | i | WEC Energy Group, Inc.

Table of Contents
GLOSSARY OF TERMS AND ABBREVIATIONS
The abbreviations and terms set forth below are used throughout this report and have the meanings assigned to them below:

Subsidiaries and Affiliates
ATC |  | American Transmission Company LLC
ATC Holdco |  | ATC Holdco LLC
Bishop Hill III |  | Bishop Hill Energy III LLC
Bluewater |  | Bluewater Natural Gas Holding, LLC
Coyote Ridge |  | Coyote Ridge Wind, LLC
Integrys |  | Integrys Holding, Inc.
MERC |  | Minnesota Energy Resources Corporation
MGU |  | Michigan Gas Utilities Corporation
NSG |  | North Shore Gas Company
PDL |  | WPS Power Development, LLC
PGL |  | The Peoples Gas Light and Coke Company
UMERC |  | Upper Michigan Energy Resources Corporation
Upstream |  | Upstream Wind Energy LLC
WE |  | Wisconsin Electric Power Company
We Power |  | W.E. Power, LLC
WEC Energy Group |  | WEC Energy Group, Inc.
WECI |  | WEC Infrastructure LLC
WG |  | Wisconsin Gas LLC
WPS |  | Wisconsin Public Service Corporation
Federal and State Regulatory Agencies
EPA |  | United States Environmental Protection Agency
FERC |  | Federal Energy Regulatory Commission
ICC |  | Illinois Commerce Commission
IEPA |  | Illinois Environmental Protection Agency
MPSC |  | Michigan Public Service Commission
PSCW |  | Public Service Commission of Wisconsin
SEC |  | United States Securities and Exchange Commission
Accounting Terms
AFUDC |  | Allowance for Funds Used During Construction
ASU |  | Accounting Standards Update
FASB |  | Financial Accounting Standards Board
GAAP |  | United States Generally Accepted Accounting Principles
LIFO |  | Last-In, First-Out
OPEB |  | Other Postretirement Employee Benefits
Environmental Terms
ACE |  | Affordable Clean Energy
BATW |  | Bottom Ash Transport Water
BSER |  | Best System of Emission Reduction
BTA |  | Best Technology Available
CAA |  | Clean Air Act
CO 2 |  | Carbon Dioxide
ELG |  | Steam Electric Effluent Limitation Guidelines
FGD |  | Flue Gas Desulfurization
GHG |  | Greenhouse Gas

03/31/2020 Form 10-Q | ii | WEC Energy Group, Inc.

Table of Contents

GMZ |  | Groundwater Management Zone
MATS |  | Mercury and Air Toxics Standards
NOV |  | Notice of Violation
RTR |  | Risk and Technology Review
VN |  | Violation Notice
Measurements
Dth |  | Dekatherm
MW |  | Megawatt
MWh |  | Megawatt-hour
Other Terms and Abbreviations
2007 Junior Notes |  | WEC Energy Group, Inc.'s 2007 Junior Subordinated Notes Due 2067
AG |  | Attorney General
AMI |  | Advanced Metering Infrastructure
Badger Hollow I |  | Badger Hollow Solar Farm I
Badger Hollow II |  | Badger Hollow Solar Farm II
Blooming Grove |  | Blooming Grove Wind Energy Center LLC
CDC |  | Centers for Disease Control and Prevention
COVID-19 |  | Coronavirus Disease – 2019
D.C. Circuit Court of Appeals |  | United States Court of Appeals for the District of Columbia Circuit
ERGS |  | Elm Road Generating Station
Exchange Act |  | Securities Exchange Act of 1934, as amended
FTR |  | Financial Transmission Rights
LIBOR |  | London Interbank Offered Rate
LNG |  | Liquefied Natural Gas
MISO |  | Midcontinent Independent System Operator, Inc.
OCPP |  | Oak Creek Power Plant
OC 5 |  | Oak Creek Power Plant Unit 5
OC 6 |  | Oak Creek Power Plant Unit 6
OC 7 |  | Oak Creek Power Plant Unit 7
OC 8 |  | Oak Creek Power Plant Unit 8
PIPP |  | Presque Isle Power Plant
QIP |  | Qualifying Infrastructure Plant
ROE |  | Return on Equity
SMP |  | Natural Gas System Modernization Program
SSR |  | System Support Resource
Tax Legislation |  | Tax Cuts and Jobs Act of 2017
Thunderhead |  | Thunderhead Wind Energy LLC
Tilden |  | Tilden Mining Company
Two Creeks |  | Two Creeks Solar Project
WHO |  | World Health Organization

03/31/2020 Form 10-Q | iii | WEC Energy Group, Inc.

Table of Contents
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION
In this report, we make statements concerning our expectations, beliefs, plans, objectives, goals, strategies, and future events or performance. These statements are "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Exchange Act. Readers are cautioned not to place undue reliance on these forward-looking statements. Forward-looking statements may be identified by reference to a future period or periods or by the use of terms such as "anticipates," "believes," "could," "estimates," "expects," "forecasts," "goals," "guidance," "intends," "may," "objectives," "plans," "possible," "potential," "projects," "seeks," "should," "targets," "will," or variations of these terms.
Forward-looking statements include, among other things, statements concerning management's expectations and projections regarding earnings, completion of capital projects, sales and customer growth, rate actions and related filings with regulatory authorities, environmental and other regulations and associated compliance costs, legal proceedings, dividend payout ratios, effective tax rates, pension and OPEB plans, fuel costs, sources of electric energy supply, coal and natural gas deliveries, remediation costs, environmental matters, liquidity and capital resources, and other matters.
Forward-looking statements are subject to a number of risks and uncertainties that could cause our actual results to differ materially from those expressed or implied in the statements. These risks and uncertainties include those described in risk factors as set forth in this report and our 2019 Annual Report on Form 10-K, and those identified below:

• | Factors affecting utility operations such as catastrophic weather-related damage, environmental incidents, unplanned facility outages and repairs and maintenance, and electric transmission or natural gas pipeline system constraints;

• | Factors affecting the demand for electricity and natural gas, including political developments, unusual weather, changes in economic conditions, customer growth and declines, commodity prices, energy conservation efforts, and continued adoption of distributed generation by customers;

• | The timing, resolution, and impact of rate cases and negotiations, including recovery of deferred and current costs and the ability to earn a reasonable return on investment, and other regulatory decisions impacting our regulated operations;

• | The impact of the COVID-19 outbreak on our business functions, financial condition, liquidity, and results of operations;

• | The impact of recent and future federal, state, and local legislative and/or regulatory changes, including changes in rate-setting policies or procedures, deregulation and restructuring of the electric and/or natural gas utility industries, transmission or distribution system operation, the approval process for new construction, reliability standards, pipeline integrity and safety standards, allocation of energy assistance, energy efficiency mandates, and tax laws, including the Tax Legislation as well as those that affect our ability to use production tax credits and investment tax credits;

• | Federal and state legislative and regulatory changes relating to the environment, including climate change and other environmental regulations impacting generation facilities and renewable energy standards, the enforcement of these laws and regulations, changes in the interpretation of regulations or permit conditions by regulatory agencies, and the recovery of associated remediation and compliance costs;

• | The ability to obtain and retain customers, including wholesale customers, due to increased competition in our electric and natural gas markets from retail choice and alternative electric suppliers, and continued industry consolidation;

• | The timely completion of capital projects within budgets and the ability to recover the related costs through rates;

• | Factors affecting the implementation of our generation reshaping plan, including related regulatory decisions, the cost of materials, supplies, and labor, and the feasibility of competing projects;

• | The financial and operational feasibility of taking more aggressive action to further reduce GHG emissions in order to limit future global temperature increases;

• | The risks associated with changing commodity prices, particularly natural gas and electricity, and the availability of sources of natural gas and other fossil fuels, purchased power, materials needed to operate environmental controls at our electric generating facilities, or water supply due to high demand, shortages, transportation problems, nonperformance by electric energy or natural gas suppliers under existing power purchase or natural gas supply contracts, or other developments;

03/31/2020 Form 10-Q | 1 | WEC Energy Group, Inc.

Table of Contents

• | Changes in credit ratings, interest rates, and our ability to access the capital markets, caused by volatility in the global credit markets, our capitalization structure, and market perceptions of the utility industry, us, or any of our subsidiaries;

• | Changes in the method of determining LIBOR or the replacement of LIBOR with an alternative reference rate;

• | Costs and effects of litigation, administrative proceedings, investigations, settlements, claims, and inquiries;

• | The direct or indirect effect on our business resulting from terrorist attacks and cyber security intrusions, as well as the threat of such incidents, including the failure to maintain the security of personally identifiable information, the associated costs to protect our utility assets, technology systems, and personal information, and the costs to notify affected persons to mitigate their information security concerns and to comply with state notification laws;

• | Restrictions imposed by various financing arrangements and regulatory requirements on the ability of our subsidiaries to transfer funds to us in the form of cash dividends, loans or advances, that could prevent us from paying our common stock dividends, taxes, and other expenses, and meeting our debt obligations;

• | The risk of financial loss, including increases in bad debt expense, associated with the inability of our customers, counterparties, and affiliates to meet their obligations;

• | Changes in the creditworthiness of the counterparties with whom we have contractual arrangements, including participants in the energy trading markets and fuel suppliers and transporters;

• | The financial performance of ATC and its corresponding contribution to our earnings;

• | The investment performance of our employee benefit plan assets, as well as unanticipated changes in related actuarial assumptions, which could impact future funding requirements;

• | Factors affecting the employee workforce, including loss of key personnel, internal restructuring, work stoppages, and collective bargaining agreements and negotiations with union employees;

• | Advances in technology, and related legislation or regulation supporting the use of that technology, that result in competitive disadvantages and create the potential for impairment of existing assets;

• | The risk associated with the values of goodwill and other intangible assets and their possible impairment;

• | Potential business strategies to acquire and dispose of assets or businesses, which cannot be assured to be completed timely or within budgets, and legislative or regulatory restrictions or caps on non-utility acquisitions, investments or projects, including the State of Wisconsin's public utility holding company law;

• | The timing and outcome of any audits, disputes, and other proceedings related to taxes;

• | The ability to maintain effective internal controls in accordance with Section 404 of the Sarbanes-Oxley Act, while both integrating and continuing to consolidate our enterprise systems;

• | The effect of accounting pronouncements issued periodically by standard-setting bodies; and

• | Other considerations disclosed elsewhere herein and in other reports we file with the SEC or in other publicly disseminated written documents.

We expressly disclaim any obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events, or otherwise.

03/31/2020 Form 10-Q | 2 | WEC Energy Group, Inc.

Table of Contents
PART I. FINANCIAL INFORMATION
ITEM 1. FINANCIAL STATEMENTS
WEC ENERGY GROUP, INC.

CONDENSED CONSOLIDATED INCOME STATEMENTS (Unaudited) |  | Three Months Ended
|  | March 31
(in millions, except per share amounts) |  | 2020 |  | 2019
Operating revenues |  | $ | 2,108.6 |  |  | $ | 2,377.4 |
Operating expenses |  |  |  |
Cost of sales |  | 734.7 |  |  | 1,009.6 |
Other operation and maintenance |  | 455.7 |  |  | 550.6 |
Depreciation and amortization |  | 239.1 |  |  | 226.4 |
Property and revenue taxes |  | 52.5 |  |  | 48.0 |
Total operating expenses |  | 1,482.0 |  |  | 1,834.6 |
Operating income |  | 626.6 |  |  | 542.8 |
Equity in earnings of transmission affiliates |  | 39.8 |  |  | 36.1 |
Other income, net |  | 5.6 |  |  | 30.9 |
Interest expense |  | 129.4 |  |  | 124.4 |
Other expense |  | (84.0 | ) |  | (57.4 | )
Income before income taxes |  | 542.6 |  |  | 485.4 |
Income tax expense |  | 90.0 |  |  | 65.0 |
Net income |  | 452.6 |  |  | 420.4 |
Preferred stock dividends of subsidiary |  | 0.3 |  |  | 0.3 |
Net loss attributed to noncontrolling interests |  | 0.2 |  |  | — |
Net income attributed to common shareholders |  | $ | 452.5 |  |  | $ | 420.1 |
Earnings per share |  |  |  |
Basic |  | $ | 1.43 |  |  | $ | 1.33 |
Diluted |  | $ | 1.43 |  |  | $ | 1.33 |
Weighted average common shares outstanding |  |  |  |
Basic |  | 315.4 |  |  | 315.5 |
Diluted |  | 316.7 |  |  | 316.7 |

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these financial statements.

03/31/2020 Form 10-Q | 3 | WEC Energy Group, Inc.

Table of Contents
WEC ENERGY GROUP, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) |  | Three Months Ended
|  | March 31
(in millions) |  | 2020 |  | 2019
Net income |  | $ | 452.6 |  |  | $ | 420.4 |
Other comprehensive income (loss), net of tax |  |  |  |
Derivatives accounted for as cash flow hedges |  |  |  |
Net derivative losses, net of tax benefits of $(1.3) and $(0.4), respectively |  | (3.4 | ) |  | (1.2 | )
Reclassification of net loss (gains) to net income, net of tax |  | 0.1 |  |  | (0.3 | )
Cash flow hedges, net |  | (3.3 | ) |  | (1.5 | )
Defined benefit plans |  |  |  |
Amortization of pension and OPEB costs included in net periodic benefit cost, net of tax |  | 0.3 |  |  | 0.1 |
Other comprehensive loss, net of tax |  | (3.0 | ) |  | (1.4 | )
Comprehensive income |  | 449.6 |  |  | 419.0 |
Preferred stock dividends of subsidiary |  | 0.3 |  |  | 0.3 |
Comprehensive loss attributed to noncontrolling interests |  | 0.2 |  |  | — |
Comprehensive income attributed to common shareholders |  | $ | 449.5 |  |  | $ | 418.7 |

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these financial statements.

03/31/2020 Form 10-Q | 4 | WEC Energy Group, Inc.

Table of Contents
WEC ENERGY GROUP, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (in millions, except share and per share amounts) |  | March 31, 2020 |  | December 31, 2019
Assets |  |  |  |
Current assets |  |  |  |
Cash and cash equivalents |  | $ | 15.4 |  |  | $ | 37.5 |
Accounts receivable and unbilled revenues, net of reserves of $164.8 and $140.0, respectively |  | 1,176.9 |  |  | 1,176.5 |
Materials, supplies, and inventories |  | 391.1 |  |  | 549.8 |
Prepayments |  | 200.0 |  |  | 261.8 |
Other |  | 61.9 |  |  | 68.0 |
Current assets |  | 1,845.3 |  |  | 2,093.6 |
Long-term assets |  |  |  |
Property, plant, and equipment, net of accumulated depreciation and amortization of $9,042.3 and $8,878.7, respectively |  | 23,797.1 |  |  | 23,620.1 |
Regulatory assets |  | 3,566.1 |  |  | 3,506.7 |
Equity investment in transmission affiliates |  | 1,717.7 |  |  | 1,720.8 |
Goodwill |  | 3,052.8 |  |  | 3,052.8 |
Other |  | 853.2 |  |  | 957.8 |
Long-term assets |  | 32,986.9 |  |  | 32,858.2 |
Total assets |  | $ | 34,832.2 |  |  | $ | 34,951.8 |
Liabilities and Equity |  |  |  |
Current liabilities |  |  |  |
Short-term debt |  | $ | 827.2 |  |  | $ | 830.8 |
Current portion of long-term debt |  | 694.3 |  |  | 693.2 |
Accounts payable |  | 597.9 |  |  | 908.1 |
Accrued payroll and benefits |  | 128.6 |  |  | 199.8 |
Amounts refundable to customers |  | 155.8 |  |  | 87.6 |
Other |  | 443.9 |  |  | 463.2 |
Current liabilities |  | 2,847.7 |  |  | 3,182.7 |
Long-term liabilities |  |  |  |
Long-term debt |  | 11,194.7 |  |  | 11,211.0 |
Deferred income taxes |  | 3,870.0 |  |  | 3,769.3 |
Deferred revenue, net |  | 428.5 |  |  | 497.1 |
Regulatory liabilities |  | 3,987.1 |  |  | 3,992.8 |
Environmental remediation liabilities |  | 589.4 |  |  | 589.2 |
Pension and OPEB obligations |  | 324.2 |  |  | 326.2 |
Other |  | 1,106.0 |  |  | 1,128.9 |
Long-term liabilities |  | 21,499.9 |  |  | 21,514.5 |
Commitments and contingencies (Note 19) |  |  |  |
Common shareholders' equity |  |  |  |
Common stock – $0.01 par value; 325,000,000 shares authorized; 315,434,531 shares outstanding |  | 3.2 |  |  | 3.2 |
Additional paid in capital |  | 4,167.3 |  |  | 4,186.6 |
Retained earnings |  | 6,180.7 |  |  | 5,927.7 |
Accumulated other comprehensive loss |  | (7.1 | ) |  | (4.1 | )
Common shareholders' equity |  | 10,344.1 |  |  | 10,113.4 |
Preferred stock of subsidiary |  | 30.4 |  |  | 30.4 |
Noncontrolling interests |  | 110.1 |  |  | 110.8 |
Total liabilities and equity |  | $ | 34,832.2 |  |  | $ | 34,951.8 |

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these financial statements.

03/31/2020 Form 10-Q | 5 | WEC Energy Group, Inc.

Table of Contents
WEC ENERGY GROUP, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) |  | Three Months Ended
|  | March 31
(in millions) |  | 2020 |  | 2019
Operating activities |  |  |  |
Net income |  | $ | 452.6 |  |  | $ | 420.4 |
Reconciliation to cash provided by operating activities |  |  |  |
Depreciation and amortization |  | 239.1 |  |  | 226.4 |
Deferred income taxes and investment tax credits, net |  | 92.1 |  |  | 17.2 |
Contributions and payments related to pension and OPEB plans |  | (3.7 | ) |  | (4.2 | )
Change in – |  |  |  |
Accounts receivable and unbilled revenues |  | (3.5 | ) |  | (124.3 | )
Materials, supplies, and inventories |  | 158.7 |  |  | 218.3 |
Other current assets |  | 65.4 |  |  | 125.1 |
Accounts payable |  | (250.1 | ) |  | (204.3 | )
Other current liabilities |  | (27.7 | ) |  | 54.6 |
Other, net |  | (32.4 | ) |  | 6.5 |
Net cash provided by operating activities |  | 690.5 |  |  | 735.7 |
Investing activities |  |  |  |
Capital expenditures |  | (496.1 | ) |  | (358.8 | )
Acquisition of Upstream, net of cash and restricted cash acquired of $9.2 |  | — |  |  | (268.2 | )
Capital contributions to transmission affiliates |  | (3.0 | ) |  | (3.4 | )
Proceeds from the sale of assets |  | 1.3 |  |  | 10.6 |
Proceeds from the sale of investments held in rabbi trust |  | 17.0 |  |  | 0.1 |
Proceeds from cash surrender value of life insurance |  | 8.3 |  |  | 8.5 |
Other, net |  | 9.5 |  |  | 4.6 |
Net cash used in investing activities |  | (463.0 | ) |  | (606.6 | )
Financing activities |  |  |  |
Exercise of stock options |  | 16.0 |  |  | 32.6 |
Purchase of common stock |  | (40.4 | ) |  | (70.7 | )
Dividends paid on common stock |  | (199.5 | ) |  | (186.2 | )
Issuance of long-term debt |  | — |  |  | 350.0 |
Retirement of long-term debt |  | (14.0 | ) |  | (13.3 | )
Issuance of short-term loan |  | 340.0 |  |  | — |
Change in other short-term debt |  | (343.6 | ) |  | (294.9 | )
Other, net |  | (2.6 | ) |  | (3.6 | )
Net cash used in financing activities |  | (244.1 | ) |  | (186.1 | )
Net change in cash, cash equivalents, and restricted cash |  | (16.6 | ) |  | (57.0 | )
Cash, cash equivalents, and restricted cash at beginning of period |  | 82.3 |  |  | 146.1 |
Cash, cash equivalents, and restricted cash at end of period |  | $ | 65.7 |  |  | $ | 89.1 |

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these financial statements.

03/31/2020 Form 10-Q | 6 | WEC Energy Group, Inc.

Table of Contents
WEC ENERGY GROUP, INC.

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (Unaudited) |  |  |  |  |  |  |  |
|  | WEC Energy Group Common Shareholders' Equity |  |  |  |  |  |
(in millions, except per share amounts) |  | Common Stock |  | Additional Paid In Capital |  | Retained Earnings |  | Accumulated Other Comprehensive Loss |  | Total Common Shareholders' Equity |  | Preferred Stock of Subsidiary |  | Non-controlling Interests |  | Total Equity
Balance at December 31, 2019 |  | $ | 3.2 |  |  | $ | 4,186.6 |  |  | $ | 5,927.7 |  |  | $ | (4.1 | ) |  | $ | 10,113.4 |  |  | $ | 30.4 |  |  | $ | 110.8 |  |  | $ | 10,254.6 |
Net income attributed to common shareholders |  | — |  |  | — |  |  | 452.5 |  |  | — |  |  | 452.5 |  |  | — |  |  | — |  |  | 452.5 |
Net loss attributed to noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (0.2 | ) |  | (0.2 | )
Other comprehensive loss |  | — |  |  | — |  |  | — |  |  | (3.0 | ) |  | (3.0 | ) |  | — |  |  | — |  |  | (3.0 | )
Common stock dividends of $0.6325 per share |  | — |  |  | — |  |  | (199.5 | ) |  | — |  |  | (199.5 | ) |  | — |  |  | — |  |  | (199.5 | )
Exercise of stock options |  | — |  |  | 16.0 |  |  | — |  |  | — |  |  | 16.0 |  |  | — |  |  | — |  |  | 16.0 |
Purchase of common stock |  | — |  |  | (40.4 | ) |  | — |  |  | — |  |  | (40.4 | ) |  | — |  |  | — |  |  | (40.4 | )
Distributions to noncontrolling interests |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (0.5 | ) |  | (0.5 | )
Stock-based compensation and other |  | — |  |  | 5.1 |  |  | — |  |  | — |  |  | 5.1 |  |  | — |  |  | — |  |  | 5.1 |
Balance at March 31, 2020 |  | $ | 3.2 |  |  | $ | 4,167.3 |  |  | $ | 6,180.7 |  |  | $ | (7.1 | ) |  | $ | 10,344.1 |  |  | $ | 30.4 |  |  | $ | 110.1 |  |  | $ | 10,484.6 |

|  | WEC Energy Group Common Shareholders' Equity |  |  |  |  |  |
(in millions, except per share amounts) |  | Common Stock |  | Additional Paid In Capital |  | Retained Earnings |  | Accumulated Other Comprehensive Loss |  | Total Common Shareholders' Equity |  | Preferred Stock of Subsidiary |  | Non-controlling Interests |  | Total Equity
Balance at December 31, 2018 |  | $ | 3.2 |  |  | $ | 4,250.1 |  |  | $ | 5,538.2 |  |  | $ | (2.6 | ) |  | $ | 9,788.9 |  |  | $ | 30.4 |  |  | $ | 23.4 |  |  | $ | 9,842.7 |
Net income attributed to common shareholders |  | — |  |  | — |  |  | 420.1 |  |  | — |  |  | 420.1 |  |  | — |  |  | — |  |  | 420.1 |
Other comprehensive loss |  | — |  |  | — |  |  | — |  |  | (1.4 | ) |  | (1.4 | ) |  | — |  |  | — |  |  | (1.4 | )
Common stock dividends of $0.59 per share |  | — |  |  | — |  |  | (186.2 | ) |  | — |  |  | (186.2 | ) |  | — |  |  | — |  |  | (186.2 | )
Exercise of stock options |  | — |  |  | 32.6 |  |  | — |  |  | — |  |  | 32.6 |  |  | — |  |  | — |  |  | 32.6 |
Purchase of common stock |  | — |  |  | (70.7 | ) |  | — |  |  | — |  |  | (70.7 | ) |  | — |  |  | — |  |  | (70.7 | )
Acquisition of a noncontrolling interest |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 69.0 |  |  | 69.0 |
Capital contributions from noncontrolling interest |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 4.8 |  |  | 4.8 |
Stock-based compensation and other |  | — |  |  | 1.2 |  |  | — |  |  | — |  |  | 1.2 |  |  | — |  |  | — |  |  | 1.2 |
Balance at March 31, 2019 |  | $ | 3.2 |  |  | $ | 4,213.2 |  |  | $ | 5,772.1 |  |  | $ | (4.0 | ) |  | $ | 9,984.5 |  |  | $ | 30.4 |  |  | $ | 97.2 |  |  | $ | 10,112.1 |

The accompanying Notes to Condensed Consolidated Financial Statements are an integral part of these financial statements.

03/31/2020 Form 10-Q | 7 | WEC Energy Group, Inc.

Table of Contents
WEC ENERGY GROUP, INC.
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (Unaudited)
March 31, 2020
NOTE 1—GENERAL INFORMATION
WEC Energy Group serves approximately 1.6 million electric customers and 2.9 million natural gas customers, and owns approximately 60% of ATC.
As used in these notes, the term "financial statements" refers to the condensed consolidated financial statements. This includes the income statements, statements of comprehensive income, balance sheets, statements of cash flows, and statements of equity, unless otherwise noted. In this report, when we refer to "the Company," "us," "we," "our," or "ours," we are referring to WEC Energy Group and all of its subsidiaries.
On our financial statements, we consolidate our majority-owned subsidiaries and reflect noncontrolling interests for the portion of entities that we do not own as a component of consolidated equity separate from the equity attributable to our shareholders. The noncontrolling interests that we reported as equity on our balance sheets related to the minority interests at Bishop Hill III, Coyote Ridge, and Upstream held by third parties. See Note 2, Acquisitions, for more information on Upstream.
We use the equity method to account for investments in companies we do not control but over which we exercise significant influence regarding their operating and financial policies. As a result of our limited voting rights, we account for ATC and ATC Holdco as equity method investments. See Note 16, Investment in Transmission Affiliates, for more information.
We have prepared the unaudited interim financial statements presented in this Form 10-Q pursuant to the rules and regulations of the SEC and GAAP. Accordingly, these financial statements do not include all of the information and footnotes required by GAAP for annual financial statements. These financial statements should be read in conjunction with the consolidated financial statements and footnotes in our Annual Report on Form 10-K for the year ended December 31, 2019. Financial results for an interim period may not give a true indication of results for the year. In particular, the results of operations for the three months ended March 31, 2020, are not necessarily indicative of expected results for 2020 due to seasonal variations and other factors, including the potential effects from the COVID-19 pandemic.
In management's opinion, we have included all adjustments, normal and recurring in nature, necessary for a fair presentation of our financial results.
NOTE 2—ACQUISITIONS
On January 1, 2018, we adopted ASU 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business (ASU 2017-01). The amendments in this update clarify the definition of a business and provide guidance on evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. ASU 2017-01 also clarifies that transaction costs are capitalized in an asset acquisition but expensed in a business combination.
Acquisition of Wind Generation Facilities in Nebraska
In August 2019, WECI signed an agreement to acquire an 80% ownership interest in Thunderhead, a 300 MW wind generating facility under construction in Antelope and Wheeler counties in Nebraska, for a total investment of approximately $338 million. In February 2020, WECI agreed to acquire an additional 10% ownership interest in Thunderhead for $43 million. The project has an offtake agreement with an unaffiliated third party for all of the energy to be produced by the facility for 12 years. Under the Tax Legislation, WECI's investment in Thunderhead is expected to qualify for production tax credits and 100% bonus depreciation. The transaction was approved by FERC in April 2020 and commercial operation is expected to begin at the end of 2020, at which time the transaction is expected to close. Thunderhead will be included in the non-utility energy infrastructure segment.
In January 2019, WECI completed the acquisition of an 80% ownership interest in Upstream, a commercially operational 202.5 MW wind generating facility, for $268.2 million, which included transaction costs and is net of cash and restricted cash acquired of $9.2 million. In April 2020, WECI completed the acquisition of an additional 10% ownership interest in Upstream for $31 million. Upstream is located in Antelope County, Nebraska and supplies energy to the Southwest Power Pool. Upstream's revenue will be substantially fixed over 10 years through an agreement with an unaffiliated third party. Under the Tax Legislation, WECI's investment

03/31/2020 Form 10-Q | 8 | WEC Energy Group, Inc.

Table of Contents
in Upstream qualifies for production tax credits and 100% bonus depreciation. Upstream is included in the non-utility energy infrastructure segment.
The table below shows the allocation of the purchase price to the assets acquired and liabilities assumed at the date of the acquisition of the initial 80% ownership interest in Upstream.

(in millions) |  |
Current assets |  | $ | 1.5 |
Net property, plant, and equipment |  | 341.6 |
Other long-term assets * |  | 22.9 |
Current liabilities |  | (4.6 | )
Long-term liabilities |  | (15.0 | )
Noncontrolling interest |  | (69.0 | )
Total purchase price |  | $ | 277.4 |

* | Includes $8.1 million of restricted cash.

Acquisition of a Wind Energy Generation Facility in Illinois
In January 2020, WECI signed an agreement to acquire an 80% ownership interest in Blooming Grove, a 250 MW wind generating facility under construction in McLean County, Illinois, for a total investment of approximately $345 million. In February 2020, WECI agreed to acquire an additional 10% ownership interest in Blooming Grove for $44 million. Blooming Grove has long-term offtake agreements for all the energy produced with affiliates of two investment grade multinational companies. Under the Tax Legislation, WECI's investment in Blooming Grove is expected to qualify for production tax credits and 100% bonus depreciation. The transaction is subject to FERC approval and commercial operation is expected to begin by the end of 2020, at which time the transaction is expected to close. In addition to the customary covenants and closing conditions contained in the agreement, if Blooming Grove does not achieve commercial operation by the end of 2020 and any related potential adverse consequences are not otherwise mitigated, we may terminate the agreement in our sole discretion. Blooming Grove will be included in the non-utility energy infrastructure segment.
NOTE 3—OPERATING REVENUES
For more information about our operating revenues, see Note 1(d), Operating Revenues, in our 2019 Annual Report on Form 10-K.
Disaggregation of Operating Revenues
The following tables present our operating revenues disaggregated by revenue source. We do not have any revenues associated with our electric transmission segment, which includes investments accounted for using the equity method. We disaggregate revenues into categories that depict how the nature, amount, timing, and uncertainty of revenues and cash flows are affected by economic factors. For our segments, revenues are further disaggregated by electric and natural gas operations and then by customer class. Each customer class within our electric and natural gas operations have different expectations of service, energy and demand requirements, and can be impacted differently by regulatory activities within their jurisdictions.

(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Utility Operations |  | Non-Utility Energy Infrastructure |  | Corporate and Other |  | Reconciling Eliminations |  | WEC Energy Group Consolidated
Three Months Ended March 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Electric |  | $ | 1,034.6 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,034.6 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1,034.6 |
Natural gas |  | 458.9 |  |  | 433.6 |  |  | 139.8 |  |  | 1,032.3 |  |  | 14.5 |  |  | — |  |  | (14.1 | ) |  | 1,032.7 |
Total regulated revenues |  | 1,493.5 |  |  | 433.6 |  |  | 139.8 |  |  | 2,066.9 |  |  | 14.5 |  |  | — |  |  | (14.1 | ) |  | 2,067.3 |
Other non-utility revenues |  | — |  |  | — |  |  | 4.4 |  |  | 4.4 |  |  | 16.4 |  |  | 0.4 |  |  | (1.6 | ) |  | 19.6 |
Total revenues from contracts with customers |  | 1,493.5 |  |  | 433.6 |  |  | 144.2 |  |  | 2,071.3 |  |  | 30.9 |  |  | 0.4 |  |  | (15.7 | ) |  | 2,086.9 |
Other operating revenues |  | 5.4 |  |  | 14.0 |  |  | 2.2 |  |  | 21.6 |  |  | 98.7 |  |  | 0.1 |  |  | (98.7 | ) |  | 21.7 |
Total operating revenues |  | $ | 1,498.9 |  |  | $ | 447.6 |  |  | $ | 146.4 |  |  | $ | 2,092.9 |  |  | $ | 129.6 |  |  | $ | 0.5 |  |  | $ | (114.4 | ) |  | $ | 2,108.6 |

03/31/2020 Form 10-Q | 9 | WEC Energy Group, Inc.

Table of Contents

(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Utility Operations |  | Non-Utility Energy Infrastructure |  | Corporate and Other |  | Reconciling Eliminations |  | WEC Energy Group Consolidated
Three Months Ended March 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Electric |  | $ | 1,061.8 |  |  | $ | — |  |  | $ | — |  |  | $ | 1,061.8 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 1,061.8 |
Natural gas |  | 564.9 |  |  | 544.6 |  |  | 185.2 |  |  | 1,294.7 |  |  | 16.4 |  |  | — |  |  | (14.7 | ) |  | 1,296.4 |
Total regulated revenues |  | 1,626.7 |  |  | 544.6 |  |  | 185.2 |  |  | 2,356.5 |  |  | 16.4 |  |  | — |  |  | (14.7 | ) |  | 2,358.2 |
Other non-utility revenues |  | — |  |  | 0.1 |  |  | 4.1 |  |  | 4.2 |  |  | 13.3 |  |  | 1.5 |  |  | (0.7 | ) |  | 18.3 |
Total revenues from contracts with customers |  | 1,626.7 |  |  | 544.7 |  |  | 189.3 |  |  | 2,360.7 |  |  | 29.7 |  |  | 1.5 |  |  | (15.4 | ) |  | 2,376.5 |
Other operating revenues |  | 6.7 |  |  | (8.2 | ) |  | (4.1 | ) |  | (5.6 | ) |  | 98.1 |  |  | 0.2 |  |  | (91.8 | ) |  | 0.9 |
Total operating revenues |  | $ | 1,633.4 |  |  | $ | 536.5 |  |  | $ | 185.2 |  |  | $ | 2,355.1 |  |  | $ | 127.8 |  |  | $ | 1.7 |  |  | $ | (107.2 | ) |  | $ | 2,377.4 |

Revenues from Contracts with Customers
Electric Utility Operating Revenues
The following table disaggregates electric utility operating revenues into customer class:

|  | Electric Utility Operating Revenues
|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019
Residential |  | $ | 404.9 |  |  | $ | 406.7 |
Small commercial and industrial |  | 323.6 |  |  | 333.9 |
Large commercial and industrial |  | 194.6 |  |  | 212.3 |
Other |  | 7.3 |  |  | 7.8 |
Total retail revenues |  | 930.4 |  |  | 960.7 |
Wholesale |  | 42.1 |  |  | 47.7 |
Resale |  | 45.2 |  |  | 40.8 |
Steam |  | 8.4 |  |  | 10.1 |
Other utility revenues |  | 8.5 |  |  | 2.5 |
Total electric utility operating revenues |  | $ | 1,034.6 |  |  | $ | 1,061.8 |

Natural Gas Utility Operating Revenues
The following tables disaggregate natural gas utility operating revenues into customer class:

(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Natural Gas Utility Operating Revenues
Three Months Ended March 31, 2020 |  |  |  |  |  |  |  |  |  |  |
Residential |  | $ | 313.1 |  |  | $ | 282.9 |  |  | $ | 95.3 |  |  | $ | 691.3 |
Commercial and industrial |  | 151.3 |  |  | 91.4 |  |  | 51.7 |  |  | 294.4 |
Total retail revenues |  | 464.4 |  |  | 374.3 |  |  | 147.0 |  |  | 985.7 |
Transport |  | 24.1 |  |  | 72.7 |  |  | 10.5 |  |  | 107.3 |
Other utility revenues * |  | (29.6 | ) |  | (13.4 | ) |  | (17.7 | ) |  | (60.7 | )
Total natural gas utility operating revenues |  | $ | 458.9 |  |  | $ | 433.6 |  |  | $ | 139.8 |  |  | $ | 1,032.3 |

03/31/2020 Form 10-Q | 10 | WEC Energy Group, Inc.

Table of Contents

(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Natural Gas Utility Operating Revenues
Three Months Ended March 31, 2019 |  |  |  |  |  |  |  |  |  |  |
Residential |  | $ | 383.9 |  |  | $ | 354.0 |  |  | $ | 125.2 |  |  | $ | 863.1 |
Commercial and industrial |  | 199.7 |  |  | 116.2 |  |  | 72.0 |  |  | 387.9 |
Total retail revenues |  | 583.6 |  |  | 470.2 |  |  | 197.2 |  |  | 1,251.0 |
Transport |  | 21.9 |  |  | 87.2 |  |  | 11.1 |  |  | 120.2 |
Other utility revenues * |  | (40.6 | ) |  | (12.8 | ) |  | (23.1 | ) |  | (76.5 | )
Total natural gas utility operating revenues |  | $ | 564.9 |  |  | $ | 544.6 |  |  | $ | 185.2 |  |  | $ | 1,294.7 |

* | Includes amounts refunded to customers for purchased gas adjustment costs.

Other Natural Gas Operating Revenues
We have other natural gas operating revenues from Bluewater, which is in our non-utility energy infrastructure segment. Bluewater has entered into long-term service agreements for natural gas storage services with WE, WPS, and WG, and provides service to several unaffiliated customers. All amounts associated with services from affiliates have been eliminated at the consolidated level.
Other Non-Utility Operating Revenues
Other non-utility operating revenues consist primarily of the following:

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019
Wind generation revenues |  | $ | 9.3 |  |  | $ | 6.2 |
We Power revenues * |  | 5.5 |  |  | 6.4 |
Appliance service revenues |  | 4.4 |  |  | 4.1 |
Distributed renewable solar project revenues |  | 0.4 |  |  | 1.5 |
Other |  | — |  |  | 0.1 |
Total other non-utility operating revenues |  | $ | 19.6 |  |  | $ | 18.3 |

* | As part of the construction of the We Power electric generating units, we capitalized interest during construction, which is included in property, plant, and equipment. As allowed by the PSCW, we collected these carrying costs from WE's utility customers during construction. The equity portion of these carrying costs was recorded as deferred revenue, and we continually amortize the deferred carrying costs to revenues over the life of the related lease term that We Power has with WE. During the three months ended March 31, 2020 and 2019, we recorded $5.5 million and $6.4 million, respectively, of revenues related to these deferred carrying costs, which were included in the contract liability balance at the beginning of the period. This contract liability is presented as deferred revenue, net on our balance sheets.

Other Operating Revenues
Other operating revenues consist primarily of the following:

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019
Late payment charges |  | $ | 12.1 |  |  | $ | 13.2 |
Alternative revenues * |  | 8.5 |  |  | (19.7 | )
Other |  | 1.1 |  |  | 7.4 |
Total other operating revenues |  | $ | 21.7 |  |  | $ | 0.9 |

* | Negative amounts can result from alternative revenues being reversed to revenues from contracts with customers as the customer is billed for these alternative revenues. Negative amounts can also result from revenues to be refunded to customers subject to decoupling mechanisms, wholesale true-ups, and conservation improvement rider true-ups, as discussed in Note 1(d), Operating Revenues, in our 2019 Annual Report on Form 10-K.

NOTE 4—CREDIT LOSSES
Effective January 1, 2020, we adopted FASB ASU 2016-13, Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments, using the modified retrospective transition method. This ASU amends the impairment model to

03/31/2020 Form 10-Q | 11 | WEC Energy Group, Inc.

Table of Contents
utilize an expected loss methodology in place of the incurred loss methodology for financial instruments, including trade receivables. The amendment requires entities to consider a broader range of information to estimate expected credit losses, which may result in earlier recognition of loss. The cumulative effect of adopting this standard was not significant to our financial statements.
Our exposure to credit losses is related to our accounts receivable and unbilled revenue balances, which are primarily generated from the sale of electricity and natural gas by our regulated utility operations. Credit losses associated with our utility operations are analyzed at the reportable segment level as we believe contract terms, political and economic risks, and the regulatory environment are similar at this level as our reportable segments are generally based on the geographic location of the underlying utility operations.
We have an accounts receivable and unbilled revenue balance associated with our non-utility energy infrastructure segment, related to the sale of electricity from our majority-owned wind generating facilities through agreements with several large high credit quality counterparties. At the corporate and other segment, the accounts receivable and unbilled revenue balance is related to the remaining PDL residential solar business.
We evaluate the collectability of our accounts receivable and unbilled revenue balances considering a combination of factors. For some of our larger customers and also in circumstances where we become aware of a specific customer's inability to meet its financial obligations to us, we record a specific allowance for credit losses against amounts due in order to reduce the net recognized receivable to the amount we reasonably believe will be collected. For all other customers, we use the accounts receivable aging method to calculate an allowance for credit losses. Using this method, we classify accounts receivable into different aging buckets and calculate a reserve percentage for each aging bucket based upon historical loss rates. The calculated reserve percentages are updated on at least an annual basis, in order to ensure recent macroeconomic, political, and regulatory trends are captured in the calculation, to the extent possible. Risks identified that we do not believe are reflected in the calculated reserve percentages, are assessed on a quarterly basis to determine whether further adjustments are required. At March 31, 2020, we recorded a $2.7 million increase to our allowance for credit losses specific to the economic risks associated with the COVID-19 pandemic, which continues to evolve. We will continue to monitor the economic impacts of COVID-19 and the resulting effect that these impacts may have on the ability of our customers to pay their energy bills.
We monitor our ongoing credit exposure through active review of counterparty accounts receivable balances against contract terms and due dates. Our activities include timely account reconciliation, dispute resolution and payment confirmation. To the extent possible, we work with customers with past due balances to negotiate payment plans, but will disconnect customers for non-payment as allowed by our regulators if necessary, and employ collection agencies and legal counsel to pursue recovery of defaulted receivables. For our larger customers, detailed credit review procedures may be performed in advance of any sales being made. We sometimes require letters of credit, parental guarantees, prepayments or other forms of credit assurance from our larger customers to mitigate credit risk. See Note 21, Regulatory Environment, for information on certain regulatory actions that are being taken for the purpose of ensuring that essential utility services are available to our customers during the COVID-19 pandemic.
We have included a table below that shows our gross third-party receivable balances and the related allowance for credit losses at March 31, 2020 by reportable segment.

(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Utility Operations |  | Non-Utility Energy Infrastructure |  | Corporate and Other |  | WEC Energy Group Consolidated
Accounts receivable and unbilled revenues |  | $ | 849.1 |  |  | $ | 404.7 |  |  | $ | 79.2 |  |  | $ | 1,333.0 |  |  | $ | 5.8 |  |  | $ | 2.9 |  |  | $ | 1,341.7 |
Allowance for credit losses |  | 67.7 |  |  | 93.1 |  |  | 3.9 |  |  | 164.7 |  |  | — |  |  | 0.1 |  |  | 164.8 |
Accounts receivable and unbilled revenues, net |  | $ | 781.4 |  |  | $ | 311.6 |  |  | $ | 75.3 |  |  | $ | 1,168.3 |  |  | $ | 5.8 |  |  | $ | 2.8 |  |  | $ | 1,176.9 |
Total accounts receivable, net – past due greater than 90 days* |  | $ | 57.7 |  |  | $ | 35.9 |  |  | $ | 3.9 |  |  | $ | 97.5 |  |  | $ | — |  |  | $ | — |  |  | $ | 97.5 |
Past due greater than 90 days – collection risk mitigated by regulatory mechanisms* |  | 95.7 | % |  | 100.0 | % |  | — | % |  | 93.4 | % |  | — | % |  | — | % |  | 93.4 | %

* | Our exposure to credit losses for certain regulated utility customers is mitigated by regulatory mechanisms we have in place. Specifically, rates related to all of the customers in our Illinois segment, as well as the residential rates of WE, WG, and WPS in our Wisconsin segment include riders or other mechanisms for cost recovery or refund of uncollectible expense based on the difference between the actual provision for credit losses and the amounts recovered in rates. As a result, at March 31, 2020, $684.6 million, or 58.2%, of our net accounts receivable and unbilled revenues balance had regulatory protections in place to mitigate the exposure to credit losses. In addition, in a March 24, 2020 order, the PSCW authorized the deferral of credit losses at WE, WG, and WPS for commercial and industrial customers, to the extent these losses exceed the amount included in rates, as a result of the COVID-19 pandemic and the actions WE, WG, and WPS have been required to take to ensure

03/31/2020 Form 10-Q | 12 | WEC Energy Group, Inc.

Table of Contents
essential utility services are available to customers during the public health emergency. Furthermore, pursuant to an April 15, 2020 order addressing certain impacts of the COVID-19 pandemic, the MPSC authorized all Michigan utilities to defer, for potential future recovery, uncollectible expense incurred on or after March 24, 2020 that exceeds the amounts being recovered in rates. The additional protections related to our March 31, 2020 accounts receivable and unbilled revenue balances provided by these orders are still being assessed and are not reflected in the percentages in the above table or related note. See Note 21, Regulatory Environment, for more information.
A rollforward of the allowance for credit losses by reportable segment is included below:

(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Utility Operations |  | Corporate and Other |  | WEC Energy Group Consolidated
Balance at December 31, 2019 |  | $ | 59.9 |  |  | $ | 75.9 |  |  | $ | 4.1 |  |  | $ | 139.9 |  |  | $ | 0.1 |  |  | $ | 140.0 |
Provision for credit losses |  | 13.7 |  |  | 14.4 |  |  | 0.7 |  |  | 28.8 |  |  | — |  |  | 28.8 |
Provision for credit losses deferred for future recovery or refund |  | 3.3 |  |  | 29.5 |  |  | — |  |  | 32.8 |  |  | — |  |  | 32.8 |
Write-offs charged against the allowance |  | (19.7 | ) |  | (31.6 | ) |  | (1.3 | ) |  | (52.6 | ) |  | — |  |  | (52.6 | )
Recoveries of amounts previously written off |  | 10.5 |  |  | 4.9 |  |  | 0.4 |  |  | 15.8 |  |  | — |  |  | 15.8 |
Balance at March 31, 2020 |  | $ | 67.7 |  |  | $ | 93.1 |  |  | $ | 3.9 |  |  | $ | 164.7 |  |  | $ | 0.1 |  |  | $ | 164.8 |

The increase in the allowance for credit losses at our Wisconsin and Illinois reportable segments was driven by an increase in past due accounts receivable balances from December 31, 2019 to March 31, 2020. This is a trend we generally see over the winter moratorium months, when we are not allowed to disconnect customer service as a result of non-payment. In Wisconsin, the winter moratorium begins on November 1 and ends on April 15, and in Illinois the winter moratorium begins on December 1 and ends on March 31. However, as a result of the COVID-19 pandemic, we are still unable to disconnect any of our Wisconsin and Illinois customers, and have also agreed not to disconnect certain of our regulated utility customers in the other states segment. See Note 21, Regulatory Environment, for more information.
NOTE 5—REGULATORY ASSETS AND LIABILITIES
The following regulatory assets and liabilities were reflected on our balance sheets at March 31, 2020 and December 31, 2019. For more information on our regulatory assets and liabilities, see Note 5, Regulatory Assets and Liabilities, in our 2019 Annual Report on Form 10-K.

(in millions) |  | March 31, 2020 |  | December 31, 2019
Regulatory assets |  |  |  |
Pension and OPEB costs |  | $ | 1,042.5 |  |  | $ | 1,066.6 |
Plant retirements |  | 851.5 |  |  | 856.4 |
Environmental remediation costs |  | 686.4 |  |  | 685.5 |
Income tax related items |  | 457.6 |  |  | 457.8 |
Asset retirement obligations |  | 188.8 |  |  | 137.5 |
SSR |  | 140.5 |  |  | 151.5 |
Uncollectible expense |  | 83.4 |  |  | 52.2 |
Derivatives |  | 31.8 |  |  | 33.8 |
We Power generation |  | 18.7 |  |  | 25.8 |
Other, net |  | 77.6 |  |  | 60.5 |
Total regulatory assets |  | $ | 3,578.8 |  |  | $ | 3,527.6 |
Balance sheet presentation |  |  |  |
Other current assets |  | $ | 12.7 |  |  | $ | 20.9 |
Regulatory assets |  | 3,566.1 |  |  | 3,506.7 |
Total regulatory assets |  | $ | 3,578.8 |  |  | $ | 3,527.6 |

03/31/2020 Form 10-Q | 13 | WEC Energy Group, Inc.

Table of Contents

(in millions) |  | March 31, 2020 |  | December 31, 2019
Regulatory liabilities |  |  |  |
Income tax related items |  | $ | 2,222.9 |  |  | $ | 2,248.8 |
Removal costs |  | 1,195.0 |  |  | 1,181.5 |
Pension and OPEB benefits |  | 349.5 |  |  | 354.9 |
Energy costs refundable through rate adjustments |  | 162.2 |  |  | 89.8 |
Electric transmission costs |  | 51.0 |  |  | 42.2 |
Earnings sharing mechanisms |  | 40.6 |  |  | 43.5 |
Uncollectible expense |  | 39.0 |  |  | 39.1 |
Energy efficiency programs |  | 35.6 |  |  | 30.7 |
Decoupling |  | 35.0 |  |  | 36.8 |
Other, net |  | 12.1 |  |  | 13.1 |
Total regulatory liabilities |  | $ | 4,142.9 |  |  | $ | 4,080.4 |
Balance sheet presentation |  |  |  |
Amounts refundable to customers |  | $ | 155.8 |  |  | $ | 87.6 |
Regulatory liabilities |  | 3,987.1 |  |  | 3,992.8 |
Total regulatory liabilities |  | $ | 4,142.9 |  |  | $ | 4,080.4 |

NOTE 6—COMMON EQUITY
Stock-Based Compensation
During the first quarter of 2020, the Compensation Committee of our Board of Directors awarded the following stock-based compensation awards to our directors, officers, and certain other key employees:

Award Type |  | Number of Awards
Stock options (1) |  | 512,139 |
Restricted shares (2) |  | 84,540 |
Performance units |  | 140,455 |

(1) | Stock options awarded had a weighted-average exercise price of $91.49 and a weighted-average grant date fair value of $10.82 per option.

(2) | Restricted shares awarded had a weighted-average grant date fair value of $91.49 per share.

Restrictions
Our ability as a holding company to pay common stock dividends primarily depends on the availability of funds received from our utility subsidiaries, We Power, ATC Holding LLC, which holds our ownership interest in ATC, and WECI. Various financing arrangements and regulatory requirements impose certain restrictions on the ability of our subsidiaries to transfer funds to us in the form of cash dividends, loans, or advances. All of our utility subsidiaries, with the exception of UMERC and MGU, are prohibited from loaning funds to us, either directly or indirectly. See Note 10, Common Equity, in our 2019 Annual Report on Form 10-K for additional information on these and other restrictions.
We do not believe that these restrictions will materially affect our operations or limit any dividend payments in the foreseeable future.
Common Stock Dividends
On April 16, 2020, our Board of Directors declared a quarterly cash dividend of $0.6325 per share, payable on June 1, 2020, to shareholders of record on May 14, 2020.

03/31/2020 Form 10-Q | 14 | WEC Energy Group, Inc.

Table of Contents
NOTE 7—SHORT-TERM DEBT AND LINES OF CREDIT
The following table shows our short-term borrowings and their corresponding weighted-average interest rates:

(in millions, except percentages) |  | March 31, 2020 |  | December 31, 2019
Commercial paper |  |  |  |
Amount outstanding |  | $ | 487.2 |  |  | $ | 830.8 |
Weighted-average interest rate on amounts outstanding |  | 3.03 | % |  | 2.00 | %
Term loan |  |  |  |
Amount outstanding |  | $ | 340.0 |  |  | $ | — |
Weighted-average interest rate on amounts outstanding |  | 2.12 | % |  | n/a |

Our average amount of commercial paper borrowings based on daily outstanding balances during the three months ended March 31, 2020 was $843.8 million with a weighted-average interest rate during the period of 1.88%.
In order to enhance our liquidity position in response to the COVID-19 pandemic, in March 2020, WEC Energy Group entered into a $340 million 364-day term loan that will mature on March 29, 2021. The proceeds from this term loan were used to pay down commercial paper.
The information in the table below relates to our term loan agreement and our revolving credit facilities used to support our commercial paper borrowing programs, including available capacity under these credit agreements:

(in millions) |  | Maturity |  | March 31, 2020
Term loan agreement (WEC Energy Group) |  | March 2021 |  | $ | 340.0 |
Revolving credit facility (WEC Energy Group) |  | October 2022 |  | 1,200.0 |
Revolving credit facility (WE) |  | October 2022 |  | 500.0 |
Revolving credit facility (WPS) |  | October 2022 |  | 400.0 |
Revolving credit facility (WG) |  | October 2022 |  | 350.0 |
Revolving credit facility (PGL) |  | October 2022 |  | 350.0 |
Total short-term credit capacity |  |  |  | $ | 3,140.0 |
Less: |  |  |  |  |
Letters of credit issued inside credit facilities |  |  |  | $ | 2.3 |
Term loan outstanding |  |  |  | 340.0 |
Commercial paper outstanding |  |  |  | 487.2 |
Available capacity under existing credit agreements |  |  |  | $ | 2,310.5 |

NOTE 8—LONG-TERM DEBT
Minnesota Energy Resources Corporation
In April 2020, MERC issued $50.0 million of 2.69% Senior Notes due May 1, 2025, and used the net proceeds to repay intercompany short-term debt to its parent, Integrys, and for general corporate purposes, including capital expenditures.
Michigan Gas Utilities Corporation
In April 2020, MGU issued $60.0 million of 2.69% Senior Notes due May 1, 2025, and used the net proceeds to repay intercompany short-term debt to its parent, Integrys, and for general corporate purposes, including capital expenditures.

03/31/2020 Form 10-Q | 15 | WEC Energy Group, Inc.

Table of Contents
NOTE 9—MATERIALS, SUPPLIES, AND INVENTORIES
Our inventory consisted of:

(in millions) |  | March 31, 2020 |  | December 31, 2019
Materials and supplies |  | 230.7 |  |  | 234.2 |
Fossil fuel |  | 92.5 |  |  | 87.9 |
Natural gas in storage |  | 67.9 |  |  | 227.7 |
Total |  | $ | 391.1 |  |  | $ | 549.8 |

PGL and NSG price natural gas storage injections at the calendar year average of the costs of natural gas supply purchased. Withdrawals from storage are priced on the LIFO cost method. For interim periods, the difference between current projected replacement cost and the LIFO cost for quantities of natural gas temporarily withdrawn from storage is recorded as a temporary LIFO liquidation debit or credit. At March 31, 2020, we had a temporary LIFO liquidation debit of $11.3 million recorded within other current assets on our balance sheet. Due to seasonality requirements, PGL and NSG expect these interim reductions in LIFO layers to be replenished by year end.
Substantially all other materials and supplies, fossil fuel inventories, and natural gas in storage are recorded using the weighted-average cost method of accounting.
NOTE 10—INCOME TAXES
The provision for income taxes differs from the amount of income tax determined by applying the applicable United States statutory federal income tax rate to income before income taxes as a result of the following:

|  | Three Months Ended March 31, 2020 |  | Three Months Ended March 31, 2019
(in millions) |  | Amount |  | Effective Tax Rate |  | Amount |  | Effective Tax Rate
Statutory federal income tax |  | $ | 113.9 |  |  | 21.0 | % |  | $ | 101.9 |  |  | 21.0 | %
State income taxes net of federal tax benefit |  | 34.0 |  |  | 6.3 | % |  | 31.0 |  |  | 6.4 | %
Federal excess deferred tax amortization – Wisconsin unprotected |  | (22.1 | ) |  | (4.1 | )% |  | — |  |  | — | %
Wind production tax credits |  | (18.4 | ) |  | (3.4 | )% |  | (13.4 | ) |  | (2.8 | )%
Federal excess deferred tax amortization |  | (13.0 | ) |  | (2.4 | )% |  | (13.2 | ) |  | (2.7 | )%
Excess tax benefits – stock options |  | (4.9 | ) |  | (0.9 | )% |  | (7.2 | ) |  | (1.5 | )%
Tax repairs |  | 1.5 |  |  | 0.3 | % |  | (29.6 | ) |  | (6.1 | )%
Other |  | (1.0 | ) |  | (0.2 | )% |  | (4.5 | ) |  | (0.9 | )%
Total income tax expense |  | $ | 90.0 |  |  | 16.6 | % |  | $ | 65.0 |  |  | 13.4 | %

The effective tax rate of 16.6% for the first quarter of 2020 differs from the United States statutory federal income tax rate of 21%, primarily due to the recognition of certain deferred tax benefits created as a result of the Tax Legislation. In accordance with the rate order received from the PSCW in December 2019, our Wisconsin utilities are amortizing the unprotected deferred tax benefits over periods ranging from two years to four years, to reduce near-term rate impacts to their customers. In addition, wind production tax credits generated from acquisitions of ownership interests in wind generation facilities in our non-utility energy infrastructure segment and the impact of the benefits associated with the Tax Legislation, as discussed in more detail below, drove a decrease in the effective tax rate, which was partially offset by state income taxes.
The effective tax rate of 13.4% for the first quarter of 2019 differs from the United States statutory federal income tax rate of 21%, primarily due to the flow through of tax repairs in connection with the 2017 Wisconsin rate settlement, wind production tax credits generated from acquisitions of ownership interests in wind generation facilities in our non-utility energy infrastructure segment and the impact of the benefits associated with the Tax Legislation, as discussed in more detail below, partially offset by state income taxes.
The Tax Legislation, signed into law in December 2017, required our regulated utilities to remeasure their deferred income taxes and we began to amortize the resulting excess deferred income taxes beginning in 2018 in accordance with normalization requirements (see federal excess deferred tax amortization line above).
See Note 21, Regulatory Environment, for more information.

03/31/2020 Form 10-Q | 16 | WEC Energy Group, Inc.

Table of Contents
NOTE 11—FAIR VALUE MEASUREMENTS
Fair value is the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date (exit price).
Fair value accounting rules provide a fair value hierarchy that prioritizes the inputs used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurement) and the lowest priority to unobservable inputs (Level 3 measurement). The three levels of the fair value hierarchy are defined as follows:
Level 1 – Quoted prices are available in active markets for identical assets or liabilities as of the reporting date. Active markets are those in which transactions for the asset or liability occur in sufficient frequency and volume to provide pricing information on an ongoing basis.
Level 2 – Pricing inputs are observable, either directly or indirectly, but are not quoted prices included within Level 1. Level 2 includes those financial instruments that are valued using external inputs within models or other valuation methods.
Level 3 – Pricing inputs include significant inputs that are generally less observable from objective sources. These inputs may be used with internally developed methods that result in management's best estimate of fair value. Level 3 instruments include those that may be more structured or otherwise tailored to customers' needs.
Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. We use a mid-market pricing convention (the mid-point price between bid and ask prices) as a practical measure for valuing certain derivative assets and liabilities. We primarily use a market approach for recurring fair value measurements and attempt to use valuation techniques that maximize the use of observable inputs and minimize the use of unobservable inputs.
When possible, we base the valuations of our derivative assets and liabilities on quoted prices for identical assets and liabilities in active markets. These valuations are classified in Level 1. The valuations of certain contracts not classified as Level 1 may be based on quoted market prices received from counterparties and/or observable inputs for similar instruments. Transactions valued using these inputs are classified in Level 2. Certain derivatives are categorized in Level 3 due to the significance of unobservable or internally-developed inputs.
The following tables summarize our financial assets and liabilities that were accounted for at fair value on a recurring basis, categorized by level within the fair value hierarchy:

|  | March 31, 2020
(in millions) |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Derivative assets |  |  |  |  |  |  |  |
Natural gas contracts |  | $ | 3.9 |  |  | $ | 0.7 |  |  | $ | — |  |  | $ | 4.6 |
FTRs |  | — |  |  | — |  |  | 0.9 |  |  | 0.9 |
Coal contracts |  | — |  |  | 0.3 |  |  | — |  |  | 0.3 |
Total derivative assets |  | $ | 3.9 |  |  | $ | 1.0 |  |  | $ | 0.9 |  |  | $ | 5.8 |
Investments held in rabbi trust |  | $ | 54.9 |  |  | $ | — |  |  | $ | — |  |  | $ | 54.9 |
Derivative liabilities |  |  |  |  |  |  |  |
Natural gas contracts |  | $ | 22.7 |  |  | $ | — |  |  | $ | — |  |  | $ | 22.7 |
Coal contracts |  | — |  |  | 0.1 |  |  | — |  |  | 0.1 |
Interest rate swaps |  | — |  |  | 10.0 |  |  | — |  |  | 10.0 |
Total derivative liabilities |  | $ | 22.7 |  |  | $ | 10.1 |  |  | $ | — |  |  | $ | 32.8 |

03/31/2020 Form 10-Q | 17 | WEC Energy Group, Inc.

Table of Contents

|  | December 31, 2019
(in millions) |  | Level 1 |  | Level 2 |  | Level 3 |  | Total
Derivative assets |  |  |  |  |  |  |  |
Natural gas contracts |  | $ | 1.4 |  |  | $ | 2.0 |  |  | $ | — |  |  | $ | 3.4 |
FTRs |  | — |  |  | — |  |  | 3.1 |  |  | 3.1 |
Coal contracts |  | — |  |  | 0.4 |  |  | — |  |  | 0.4 |
Total derivative assets |  | $ | 1.4 |  |  | $ | 2.4 |  |  | $ | 3.1 |  |  | $ | 6.9 |
Investments held in rabbi trust |  | $ | 85.3 |  |  | $ | — |  |  | $ | — |  |  | $ | 85.3 |
Derivative liabilities |  |  |  |  |  |  |  |
Natural gas contracts |  | $ | 21.4 |  |  | $ | 1.3 |  |  | $ | — |  |  | $ | 22.7 |
Coal contracts |  | — |  |  | 0.2 |  |  | — |  |  | 0.2 |
Interest rate swaps |  | — |  |  | 6.0 |  |  | — |  |  | 6.0 |
Total derivative liabilities |  | $ | 21.4 |  |  | $ | 7.5 |  |  | $ | — |  |  | $ | 28.9 |

The derivative assets and liabilities listed in the tables above include options, swaps, futures, physical commodity contracts, and other instruments used to manage market risks related to changes in commodity prices and interest rates. They also include FTRs, which are used to manage electric transmission congestion costs in the MISO Energy and Operating Reserves Markets.
We hold investments in the Integrys rabbi trust. These investments are restricted as they can only be withdrawn from the trust to fund participants' benefits under the Integrys deferred compensation plan and certain Integrys non-qualified pension plans. These investments are included in other long-term assets on our balance sheets. During the three months ended March 31, 2020, we recorded $14.2 million of net unrealized losses in earnings related to the investments held at the end of the period, compared with $8.6 million of net unrealized gains recorded during the same quarter in 2019.
The following table summarizes the changes to derivatives classified as Level 3 in the fair value hierarchy:

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019
Balance at the beginning of the period |  | $ | 3.1 |  |  | $ | 7.4 |
Settlements |  | (2.2 | ) |  | (4.3 | )
Balance at the end of the period |  | $ | 0.9 |  |  | $ | 3.1 |

Fair Value of Financial Instruments
The following table shows the financial instruments included on our balance sheets that were not recorded at fair value:

|  | March 31, 2020 |  | December 31, 2019
(in millions) |  | Carrying Amount |  | Fair Value |  | Carrying Amount |  | Fair Value
Preferred stock of subsidiary |  | $ | 30.4 |  |  | $ | 28.3 |  |  | $ | 30.4 |  |  | $ | 29.5 |
Long-term debt, including current portion * |  | 11,844.8 |  |  | 12,920.8 |  |  | 11,858.3 |  |  | 13,035.9 |

* | The carrying amount of long-term debt excludes finance lease obligations of $44.2 million and $45.9 million at March 31, 2020 and December 31, 2019, respectively.

The fair values of our long-term debt and preferred stock are categorized within Level 2 of the fair value hierarchy.
NOTE 12—DERIVATIVE INSTRUMENTS
We use derivatives as part of our risk management program to manage the risks associated with the price volatility of interest rates, purchased power, generation, and natural gas costs for the benefit of our customers and shareholders. Our approach is non-speculative and designed to mitigate risk. Regulated hedging programs are approved by our state regulators.
We record derivative instruments on our balance sheets as an asset or liability measured at fair value unless they qualify for the normal purchases and sales exception and are so designated. We continually assess our contracts designated as normal and will discontinue the treatment of these contracts as normal if the required criteria are no longer met. Changes in the derivative's fair

03/31/2020 Form 10-Q | 18 | WEC Energy Group, Inc.

Table of Contents
value are recognized currently in earnings unless specific hedge accounting criteria are met or we receive regulatory treatment for the derivative. For most energy-related physical and financial contracts in our regulated operations that qualify as derivatives, our regulators allow the effects of fair value accounting to be offset to regulatory assets and liabilities.
None of our derivatives are designated as hedging instruments, with the exception of our interest rate swaps, which have been designated as cash flow hedges. The following table shows our derivative assets and derivative liabilities, along with their classification on our balance sheets.

|  | March 31, 2020 |  | December 31, 2019
(in millions) |  | Derivative Assets |  | Derivative Liabilities |  | Derivative Assets |  | Derivative Liabilities
Other current |  |  |  |  |  |  |  |
Natural gas contracts |  | $ | 3.0 |  |  | $ | 22.7 |  |  | $ | 3.4 |  |  | $ | 21.8 |
FTRs |  | 0.9 |  |  | — |  |  | 3.1 |  |  | — |
Coal contracts |  | 0.2 |  |  | 0.1 |  |  | 0.2 |  |  | 0.2 |
Interest rate swaps |  | — |  |  | 5.1 |  |  | — |  |  | 2.8 |
Total other current * |  | 4.1 |  |  | 27.9 |  |  | 6.7 |  |  | 24.8 |
Other long-term |  |  |  |  |  |  |  |
Natural gas contracts |  | 1.6 |  |  | — |  |  | — |  |  | 0.9 |
Coal contracts |  | 0.1 |  |  | — |  |  | 0.2 |  |  | — |
Interest rate swaps |  | — |  |  | 4.9 |  |  | — |  |  | 3.2 |
Total other long-term * |  | 1.7 |  |  | 4.9 |  |  | 0.2 |  |  | 4.1 |
Total |  | $ | 5.8 |  |  | $ | 32.8 |  |  | $ | 6.9 |  |  | $ | 28.9 |

* | On our balance sheets, we classify derivative assets and liabilities as other current or other long-term based on the maturities of the underlying contracts.

Realized gains (losses) on derivatives not designated as hedging instruments are primarily recorded in cost of sales on the income statements. Our estimated notional sales volumes and realized gains (losses) were as follows:

|  | Three Months Ended March 31, 2020 |  | Three Months Ended March 31, 2019
(in millions) |  | Volumes |  | Gains (Losses) |  | Volumes |  | Gains (Losses)
Natural gas contracts |  | 58.4 Dth |  | $ | (24.7 | ) |  | 56.1 Dth |  | $ | (0.5 | )
FTRs |  | 7.2 MWh |  | 1.4 |  |  | 8.1 MWh |  | 2.3 |
Total |  |  |  | $ | (23.3 | ) |  |  |  | $ | 1.8 |

On our balance sheets, the amounts recognized for the right to reclaim cash collateral or the obligation to return cash collateral are not offset against the fair value amounts recognized for derivative instruments executed with the same counterparty under the same master netting arrangement. At March 31, 2020 and December 31, 2019, we had posted cash collateral of $28.8 million and $34.4 million, respectively, in our margin accounts. These amounts were recorded on our balance sheets in other current assets.
The following table shows derivative assets and derivative liabilities if derivative instruments by counterparty were presented net on our balance sheets:

|  | March 31, 2020 |  | December 31, 2019
(in millions) |  | Derivative Assets |  | Derivative Liabilities |  | Derivative Assets |  | Derivative Liabilities |
Gross amount recognized on the balance sheet |  | $ | 5.8 |  |  | $ | 32.8 |  |  | $ | 6.9 |  |  | $ | 28.9 |  |
Gross amount not offset on the balance sheet |  | (3.9 | ) |  | (22.7 | ) | (1) | (1.4 | ) |  | (21.4 | ) | (2)
Net amount |  | $ | 1.9 |  |  | $ | 10.1 |  |  | $ | 5.5 |  |  | $ | 7.5 |  |

(1) | Includes cash collateral posted of $18.8 million.

(2) | Includes cash collateral posted of $20.0 million.

Cash Flow Hedges
As of March 31, 2020, we had two interest rate swaps with a combined notional value of $250.0 million to hedge the variable interest rate risk associated with our 2007 Junior Notes. The swaps provide a fixed interest rate of 4.9765% on $250.0 million of the

03/31/2020 Form 10-Q | 19 | WEC Energy Group, Inc.

Table of Contents
$500.0 million of outstanding 2007 Junior Notes through November 15, 2021. As these swaps qualified for cash flow hedge accounting treatment, the related gains and losses are being deferred in accumulated other comprehensive loss and are being amortized to interest expense as interest is accrued on the 2007 Junior Notes.
We previously entered into forward interest rate swap agreements to mitigate the interest rate exposure associated with the issuance of long-term debt related to the acquisition of Integrys. These swap agreements were settled in 2015, and we continue to amortize amounts out of accumulated other comprehensive loss into interest expense over the periods in which the interest costs are recognized in earnings.
The table below shows the amounts related to these cash flow hedges recorded in other comprehensive loss and in earnings, along with our total interest expense on the income statements:

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019
Derivative losses recognized in other comprehensive loss |  | $ | (4.7 | ) |  | $ | (1.6 | )
Net derivative gains (losses) reclassified from accumulated other comprehensive loss to interest expense |  | (0.1 | ) |  | 0.4 |
Total interest expense line item on the income statements |  | 129.4 |  |  | 124.4 |

We estimate that during the next twelve months $3.5 million will be reclassified from accumulated other comprehensive loss as an increase to interest expense.
NOTE 13—GUARANTEES
The following table shows our outstanding guarantees:

|  |  |  | Expiration
(in millions) |  | Total Amounts Committed at March 31, 2020 |  | Less Than 1 Year |  | 1 to 3 Years |  | Over 3 Years
Guarantees |  |  |  |  |  |  |  |
Guarantees supporting transactions of subsidiaries (1) |  | $ | 31.6 |  |  | $ | 9.2 |  |  | $ | 0.2 |  |  | $ | 22.2 |
Standby letters of credit (2) |  | 95.5 |  |  | 1.2 |  |  | 0.2 |  |  | 94.1 |
Surety bonds (3) |  | 9.9 |  |  | 9.9 |  |  | — |  |  | — |
Other guarantees (4) |  | 12.1 |  |  | 0.9 |  |  | — |  |  | 11.2 |
Total guarantees |  | $ | 149.1 |  |  | $ | 21.2 |  |  | $ | 0.4 |  |  | $ | 127.5 |

(1) | Consists of $4.2 million, $6.2 million, and $21.2 million to support the business operations of UMERC, Bluewater, and WECI, respectively.

(2) | At our request or the request of our subsidiaries, financial institutions have issued standby letters of credit for the benefit of third parties that have extended credit to our subsidiaries. These amounts are not reflected on our balance sheets.

(3) | Primarily for workers compensation self-insurance programs and obtaining various licenses, permits, and rights-of-way. These amounts are not reflected on our balance sheets.

(4) | Consists of $12.1 million related to other indemnifications, for which a liability of $11.2 million related to workers compensation coverage was recorded on our balance sheets.

03/31/2020 Form 10-Q | 20 | WEC Energy Group, Inc.

Table of Contents
NOTE 14—EMPLOYEE BENEFITS
The following tables show the components of net periodic benefit cost (credit) for our benefit plans.

|  | Pension Benefits
|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019
Service cost |  | $ | 13.1 |  |  | $ | 11.3 |
Interest cost |  | 26.1 |  |  | 30.6 |
Expected return on plan assets |  | (47.9 | ) |  | (48.7 | )
Loss on plan settlement |  | 0.3 |  |  | 0.8 |
Amortization of prior service cost |  | 0.4 |  |  | 0.6 |
Amortization of net actuarial loss |  | 24.2 |  |  | 19.0 |
Net periodic benefit cost |  | $ | 16.2 |  |  | $ | 13.6 |

|  | OPEB Benefits
|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019
Service cost |  | $ | 4.1 |  |  | $ | 4.4 |
Interest cost |  | 4.7 |  |  | 6.5 |
Expected return on plan assets |  | (15.1 | ) |  | (13.7 | )
Amortization of prior service credit |  | (3.7 | ) |  | (3.9 | )
Amortization of net actuarial gain |  | (5.4 | ) |  | (0.7 | )
Net periodic benefit credit |  | $ | (15.4 | ) |  | $ | (7.4 | )

During the three months ended March 31, 2020, we made contributions and payments of $3.5 million related to our pension plans and $0.2 million related to our OPEB plans. We expect to make contributions and payments of $8.0 million related to our pension plans and $0.8 million related to our OPEB plans during the remainder of 2020, dependent upon various factors affecting us, including our liquidity position and the continued effects of the Tax Legislation.
NOTE 15—GOODWILL
Goodwill represents the excess of the cost of an acquisition over the fair value of the identifiable net assets acquired. The table below shows our goodwill balances by segment at March 31, 2020. We had no changes to the carrying amount of goodwill during the three months ended March 31, 2020.

(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Non-Utility Energy Infrastructure |  | Total
Goodwill balance * |  | $ | 2,104.3 |  |  | $ | 758.7 |  |  | $ | 183.2 |  |  | $ | 6.6 |  |  | $ | 3,052.8 |

* | We had no accumulated impairment losses related to our goodwill as of March 31, 2020.

03/31/2020 Form 10-Q | 21 | WEC Energy Group, Inc.

Table of Contents
NOTE 16—INVESTMENT IN TRANSMISSION AFFILIATES
We own approximately 60% of ATC, a for-profit, transmission-only company regulated by the FERC for cost of service and certain state regulatory commissions for routing and siting of transmission projects. We also own approximately 75% of ATC Holdco, a separate entity formed in December 2016 to invest in transmission-related projects outside of ATC's traditional footprint. The following tables provide a reconciliation of the changes in our investments in ATC and ATC Holdco:

|  | Three Months Ended March 31, 2020
(in millions) |  | ATC |  | ATC Holdco |  | Total
Balance at beginning of period |  | $ | 1,684.7 |  |  | $ | 36.1 |  |  | $ | 1,720.8 |
Add: Earnings from equity method investment |  | 39.6 |  |  | 0.2 |  |  | 39.8 |
Add: Capital contributions |  | 3.0 |  |  | — |  |  | 3.0 |
Less: Distributions |  | 40.6 |  |  | — |  |  | 40.6 |
Less: Return of capital |  | — |  |  | 5.3 |  |  | 5.3 |
Balance at end of period |  | $ | 1,686.7 |  |  | $ | 31.0 |  |  | $ | 1,717.7 |

|  | Three Months Ended March 31, 2019
(in millions) |  | ATC |  | ATC Holdco |  | Total
Balance at beginning of period |  | $ | 1,625.3 |  |  | $ | 40.0 |  |  | $ | 1,665.3 |
Add: Earnings (loss) from equity method investment |  | 36.5 |  |  | (0.4 | ) |  | 36.1 |
Add: Capital contributions |  | 3.0 |  |  | 0.4 |  |  | 3.4 |
Less: Distributions |  | 34.2 |  |  | — |  |  | 34.2 |
Balance at end of period |  | $ | 1,630.6 |  |  | $ | 40.0 |  |  | $ | 1,670.6 |

We pay ATC for network transmission and other related services it provides. In addition, we provide a variety of operational, maintenance, and project management work for ATC, which is reimbursed by ATC. We are required to pay the cost of needed transmission infrastructure upgrades for new generation projects while the projects are under construction. ATC reimburses us for these costs when the new generation is placed in service.
The following table summarizes our significant related party transactions with ATC:

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019
Charges to ATC for services and construction |  | $ | 6.0 |  |  | $ | 4.0 |
Charges from ATC for network transmission services |  | 86.9 |  |  | 87.1 |

Our balance sheets included the following receivables and payables for services received from or provided to ATC:

(in millions) |  | March 31, 2020 |  | December 31, 2019
Accounts receivable for services provided to ATC |  | $ | 2.6 |  |  | $ | 3.5 |
Accounts payable for services received from ATC |  | 29.3 |  |  | 29.0 |
Amounts due from ATC for transmission infrastructure upgrades * |  | 2.3 |  |  | 2.8 |

* | In connection with WPS's construction of its two new solar projects, Badger Hollow I and Two Creeks, WPS was required to initially fund the construction of the transmission infrastructure upgrades needed for the new generation. ATC owns these transmission assets and will reimburse WPS for these costs after the new generation has been placed in service.

Summarized financial data for ATC is included in the tables below:

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019
Income statement data |  |  |  |
Operating revenues |  | $ | 186.8 |  |  | $ | 177.7 |
Operating expenses |  | 95.2 |  |  | 90.4 |
Other expense, net |  | 28.5 |  |  | 28.8 |
Net income |  | $ | 63.1 |  |  | $ | 58.5 |

03/31/2020 Form 10-Q | 22 | WEC Energy Group, Inc.

Table of Contents

(in millions) |  | March 31, 2020 |  | December 31, 2019
Balance sheet data |  |  |  |
Current assets |  | $ | 82.4 |  |  | $ | 84.7 |
Noncurrent assets |  | 5,283.2 |  |  | 5,244.2 |
Total assets |  | $ | 5,365.6 |  |  | $ | 5,328.9 |
Current liabilities |  | $ | 526.3 |  |  | $ | 502.6 |
Long-term debt |  | 2,313.0 |  |  | 2,312.8 |
Other noncurrent liabilities |  | 307.9 |  |  | 298.9 |
Shareholders' equity |  | 2,218.4 |  |  | 2,214.6 |
Total liabilities and shareholders' equity |  | $ | 5,365.6 |  |  | $ | 5,328.9 |

NOTE 17—SEGMENT INFORMATION
We use operating income to measure segment profitability and to allocate resources to our businesses. At March 31, 2020, we reported six segments, which are described below.

• | The Wisconsin segment includes the electric and natural gas utility operations of WE, WPS, WG, and UMERC.

• | The Illinois segment includes the natural gas utility and non-utility operations of PGL and NSG.

• | The other states segment includes the natural gas utility and non-utility operations of MERC and MGU.

• | The electric transmission segment includes our approximate 60% ownership interest in ATC, a for-profit, transmission-only company regulated by the FERC for cost of service and certain state regulatory commissions for routing and siting of transmission projects, and our approximate 75% ownership interest in ATC Holdco, which was formed to invest in transmission-related projects outside of ATC's traditional footprint.

• | The non-utility energy infrastructure segment includes:

◦ | We Power, which owns and leases generating facilities to WE,

◦ | Bluewater, which owns underground natural gas storage facilities in Michigan that provide approximately one-third of the current storage needs for our Wisconsin natural gas utilities, and

◦ | WECI, which holds our ownership interests in the following wind generating facilities:

▪ | 90% ownership interest in Bishop Hill III, located in Henry County, Illinois,

▪ | 80% ownership interest in Coyote Ridge, located in Brookings County, South Dakota, and

▪ | 80% ownership interest in Upstream, located in Antelope County, Nebraska.

See Note 2, Acquisitions, for more information on Upstream.

• | The corporate and other segment includes the operations of the WEC Energy Group holding company, the Integrys holding company, the Peoples Energy, LLC holding company, Wispark LLC, Wisvest LLC, Wisconsin Energy Capital Corporation, WEC Business Services LLC, and PDL.

03/31/2020 Form 10-Q | 23 | WEC Energy Group, Inc.

Table of Contents
All of our operations are located within the United States. The following tables show summarized financial information related to our reportable segments for the three months ended March 31, 2020 and 2019:

|  | Utility Operations |  |  |  |  |  |  |  |  |  |
(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Utility Operations |  | Electric Transmission |  | Non-Utility Energy Infrastructure |  | Corporate and Other |  | Reconciling Eliminations |  | WEC Energy Group Consolidated
Three Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
March 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
External revenues |  | $ | 1,498.9 |  |  | $ | 447.6 |  |  | $ | 146.4 |  |  | $ | 2,092.9 |  |  | $ | — |  |  | $ | 15.2 |  |  | $ | 0.5 |  |  | $ | — |  |  | $ | 2,108.6 |
Intersegment revenues |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 114.4 |  |  | — |  |  | (114.4 | ) |  | — |
Other operation and maintenance |  | 330.8 |  |  | 104.1 |  |  | 21.7 |  |  | 456.6 |  |  | — |  |  | 5.2 |  |  | (1.6 | ) |  | (4.5 | ) |  | 455.7 |
Depreciation and amortization |  | 165.4 |  |  | 47.5 |  |  | 7.8 |  |  | 220.7 |  |  | — |  |  | 24.5 |  |  | 6.1 |  |  | (12.2 | ) |  | 239.1 |
Operating income (loss) |  | 426.8 |  |  | 161.6 |  |  | 37.4 |  |  | 625.8 |  |  | — |  |  | 91.5 |  |  | (4.2 | ) |  | (86.5 | ) |  | 626.6 |
Equity in earnings of transmission affiliates |  | — |  |  | — |  |  | — |  |  | — |  |  | 39.8 |  |  | — |  |  | — |  |  | — |  |  | 39.8 |
Interest expense |  | 143.1 |  |  | 16.0 |  |  | 2.2 |  |  | 161.3 |  |  | 4.8 |  |  | 15.3 |  |  | 35.1 |  |  | (87.1 | ) |  | 129.4 |

|  | Utility Operations |  |  |  |  |  |  |  |  |  |
(in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Utility Operations |  | Electric Transmission |  | Non-Utility Energy Infrastructure |  | Corporate and Other |  | Reconciling Eliminations |  | WEC Energy Group Consolidated
Three Months Ended |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
March 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
External revenues |  | $ | 1,633.4 |  |  | $ | 536.5 |  |  | $ | 185.2 |  |  | $ | 2,355.1 |  |  | $ | — |  |  | $ | 20.6 |  |  | $ | 1.7 |  |  | $ | — |  |  | $ | 2,377.4 |
Intersegment revenues |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 107.2 |  |  | — |  |  | (107.2 | ) |  | — |
Other operation and maintenance |  | 392.7 |  |  | 128.2 |  |  | 27.6 |  |  | 548.5 |  |  | — |  |  | 3.8 |  |  | (1.0 | ) |  | (0.7 | ) |  | 550.6 |
Depreciation and amortization |  | 151.0 |  |  | 44.5 |  |  | 6.5 |  |  | 202.0 |  |  | — |  |  | 22.6 |  |  | 6.4 |  |  | (4.6 | ) |  | 226.4 |
Operating income (loss) |  | 361.8 |  |  | 137.9 |  |  | 41.5 |  |  | 541.2 |  |  | — |  |  | 92.7 |  |  | (3.9 | ) |  | (87.2 | ) |  | 542.8 |
Equity in earnings of transmission affiliates |  | — |  |  | — |  |  | — |  |  | — |  |  | 36.1 |  |  | — |  |  | — |  |  | — |  |  | 36.1 |
Interest expense |  | 143.4 |  |  | 14.8 |  |  | 2.3 |  |  | 160.5 |  |  | 2.6 |  |  | 15.7 |  |  | 35.1 |  |  | (89.5 | ) |  | 124.4 |

NOTE 18—VARIABLE INTEREST ENTITIES
The primary beneficiary of a variable interest entity must consolidate the entity's assets and liabilities. In addition, certain disclosures are required for significant interest holders in variable interest entities.
We assess our relationships with potential variable interest entities, such as our coal suppliers, natural gas suppliers, coal transporters, natural gas transporters, and other counterparties related to power purchase agreements, investments, and joint ventures. In making this assessment, we consider, along with other factors, the potential that our contracts or other arrangements provide subordinated financial support, the obligation to absorb the entity's losses, the right to receive residual returns of the entity, and the power to direct the activities that most significantly impact the entity's economic performance.
Investment in Transmission Affiliates
We own approximately 60% of ATC, a for-profit, electric transmission company regulated by the FERC and certain state regulatory commissions. We have determined that ATC is a variable interest entity but consolidation is not required since we are not ATC's primary beneficiary. As a result of our limited voting rights, we do not have the power to direct the activities that most significantly impact ATC's economic performance. Therefore, we account for ATC as an equity method investment. At March 31, 2020 and

03/31/2020 Form 10-Q | 24 | WEC Energy Group, Inc.

Table of Contents
December 31, 2019, our equity investment in ATC was $1,686.7 million and $1,684.7 million, respectively, which approximates our maximum exposure to loss as a result of our involvement with ATC.
We also own approximately 75% of ATC Holdco, a separate entity formed in December 2016 to invest in transmission-related projects outside of ATC's traditional footprint. We have determined that ATC Holdco is a variable interest entity but consolidation is not required since we are not ATC Holdco's primary beneficiary. As a result of our limited voting rights, we do not have the power to direct the activities that most significantly impact ATC Holdco's economic performance. Therefore, we account for ATC Holdco as an equity method investment. At March 31, 2020 and December 31, 2019, our equity investment in ATC Holdco was $31.0 million and $36.1 million, respectively, which approximates our maximum exposure to loss as a result of our involvement with ATC Holdco.
See Note 16, Investment in Transmission Affiliates, for more information, including any significant assets and liabilities related to ATC and ATC Holdco recorded on our balance sheets.
Power Purchase Agreement
We have a power purchase agreement that represents a variable interest. This agreement is for 236 MWs of firm capacity from a natural gas-fired cogeneration facility, and we account for it as a finance lease. The agreement includes no minimum energy requirements over the remaining term of approximately two years. We have examined the risks of the entity, including operations, maintenance, dispatch, financing, fuel costs, and other factors, and have determined that we are not the primary beneficiary of the entity. We do not hold an equity or debt interest in the entity, and there is no residual guarantee associated with the power purchase agreement.
We have $20.2 million of required capacity payments over the remaining term of this agreement. We believe that the required capacity payments under this contract will continue to be recoverable in rates, and our maximum exposure to loss is limited to these capacity payments.
NOTE 19—COMMITMENTS AND CONTINGENCIES
We and our subsidiaries have significant commitments and contingencies arising from our operations, including those related to unconditional purchase obligations, environmental matters, and enforcement and litigation matters.
Unconditional Purchase Obligations
Our electric utilities have obligations to distribute and sell electricity to their customers, and our natural gas utilities have obligations to distribute and sell natural gas to their customers. The utilities expect to recover costs related to these obligations in future customer rates. In order to meet these obligations, we routinely enter into long-term purchase and sale commitments for various quantities and lengths of time.
The wind generation facilities that are part of our non-utility energy infrastructure segment have obligations to distribute and sell electricity through long-term offtake agreements with their customers for all of the energy produced. These projects also enter into related easements and other agreements associated with the generating facilities.
Our minimum future commitments related to these purchase obligations as of March 31, 2020, including those of our subsidiaries, were approximately $11.2 billion.
Environmental Matters
Consistent with other companies in the energy industry, we face significant ongoing environmental compliance and remediation obligations related to current and past operations. Specific environmental issues affecting us include, but are not limited to, current and future regulation of air emissions such as sulfur dioxide, nitrogen oxide, fine particulates, mercury, and GHGs; water intake and discharges; management of coal combustion products such as fly ash; and remediation of impacted properties, including former manufactured gas plant sites.

03/31/2020 Form 10-Q | 25 | WEC Energy Group, Inc.

Table of Contents
Air Quality
National Ambient Air Quality Standards
After completing its review of the 2008 ozone standard, the EPA released a final rule in October 2015, which lowered the limit for ground-level ozone, creating a more stringent standard than the 2008 National Ambient Air Quality Standards. The EPA issued final nonattainment area designations in April 2018. The following counties within our service territories were designated as partial nonattainment: Door, Kenosha, Manitowoc, Northern Milwaukee/Ozaukee, and Sheboygan shorelines. This re-designation was challenged in the D.C. Circuit Court of Appeals in Clean Wisconsin et al. v. U.S. Environmental Protection Agency. Petitioners in that case have argued that additional portions of Milwaukee, Waukesha, Ozaukee, and Washington Counties (among others) should be designated as nonattainment for ozone. In November 2019, the D.C. Circuit Court of Appeals heard oral arguments for that case. A decision is expected later in 2020, and we expect that any subsequent EPA re-designation, if necessary, would take place in 2021. We believe we are well positioned to meet the requirements associated with the ozone standard and do not expect to incur significant costs to comply. The State of Wisconsin is currently working with stakeholders, including us, in developing regulations for inclusion in the state implementation plan required by the rule.
Mercury and Air Toxics Standards
In December 2018, the EPA proposed to revise the Supplemental Cost Finding for the MATS rule as well as the CAA required RTR. The EPA was required by the United States Supreme Court to review both costs and benefits of complying with the MATS rule. After its review of costs, the EPA determined that it is not appropriate and necessary to regulate hazardous air pollutant emissions from power plants under Section 112 of the CAA. As a result, under the proposed rule, the emission standards and other requirements of the MATS rule first enacted in 2012 would remain in place. The EPA is not proposing to remove coal- and oil-fired power plants from the list of sources that are regulated under Section 112. The EPA also proposes that no revisions to MATS are warranted based on the results of the RTR. As a result, we do not expect the proposed rule to have a material impact on our financial condition or operations.
Climate Change
The ACE rule became effective in September 2019. This rule provides existing coal-fired generating units with standards for achieving GHG emission reductions. The rule was finalized in conjunction with two other separate and distinct rulemakings, (1) the repeal of the Clean Power Plan, and (2) revised implementing regulations for ACE, ongoing emissions guidelines, and all future emission guidelines for existing sources issued under CAA section 111(d). Every state's plan to implement ACE is required to focus on reducing GHG emissions by improving the efficiency of fossil-fueled power plants. The rule is being litigated in challenges brought in the D.C. Circuit Court of Appeals by 22 states (including Illinois, Michigan, Minnesota, and Wisconsin), local governments, and certain nongovernmental organizations. Final briefs in this litigation are scheduled to be filed in August 2020, with oral arguments expected to follow. The Wisconsin Department of Natural Resources is working with state utilities and has begun the process of developing the implementation plan with respect to the ACE rule.
In December 2018, the EPA proposed to revise the New Source Performance Standards for GHG emissions from new, modified, and reconstructed fossil-fueled power plants. The EPA determined that the BSER for new, modified, and reconstructed coal units is highly efficient generation that would be equivalent to supercritical steam conditions for larger units and subcritical steam conditions for smaller units. This proposed BSER would replace the determination from the previous rule, which identified BSER as partial carbon capture and storage. The EPA has reviewed comments and intends to take final action on the proposed rule later in 2020.
In April 2019, we issued a climate report, which analyzes our GHG reduction goals with respect to international efforts to limit future global temperature increases to less than two degrees Celsius. We will evaluate potential GHG reduction pathways as climate change policies and relevant technologies evolve over time.
We continue to evaluate opportunities and actions that preserve fuel diversity, lower costs for our customers, and contribute toward long-term GHG emissions reductions. Our current plan is to continue to work with our industry peers, environmental groups, public policy makers, and customers, with goals of reducing CO 2 emissions. In 2019, we met and exceeded our 2030 goal of reducing CO 2 emissions by 40% below 2005 levels, and are re-evaluating our longer-term CO 2 reduction goals. As a result of our generation reshaping plan, we retired approximately 1,800 MW of coal generation since the beginning of 2018, including the 2018 retirements of the Pleasant Prairie power plant, the Pulliam power plant, and the jointly-owned Edgewater Unit 4 generating units as well as the March 2019 retirement of the PIPP. We also have a goal to decrease the rate of methane emissions from the natural gas distribution

03/31/2020 Form 10-Q | 26 | WEC Energy Group, Inc.

Table of Contents
lines in our network by 30% per mile by the year 2030 from a 2011 baseline. We were over half way toward meeting that goal at the end of 2019.
Water Quality
Clean Water Act Cooling Water Intake Structure Rule
In August 2014, the EPA issued a final regulation under Section 316(b) of the Clean Water Act that requires the location, design, construction, and capacity of cooling water intake structures at existing power plants to reflect the BTA for minimizing adverse environmental impacts. The rule became effective in October 2014 and applies to all of our existing generating facilities with cooling water intake structures, except for the ERGS units, which were permitted under the rules governing new facilities.
We have received BTA determinations for OC 5 through OC 8, Weston Units 2, 3, and 4, and Valley power plant. Although we currently believe that existing technology at the Port Washington Generating Station satisfies the BTA requirements, final determinations will not be made until the discharge permit is renewed for this facility, which is expected to be in 2021. Until that time, we cannot determine what, if any, intake structure or operational modifications will be required to meet the new BTA requirements for this facility.
As a result of past capital investments completed to address Section 316(b) compliance at WE and WPS, we believe our fleet overall is well positioned to meet the regulation and do not expect to incur significant costs to comply with this regulation.
Steam Electric Effluent Limitation Guidelines
The EPA's final 2015 ELG rule took effect in January 2016. This rule created new requirements for several types of power plant wastewaters. The two new requirements that affect WE and WPS relate to discharge limits for BATW and wet FGD wastewater. As a result of past capital investments at WE and WPS, we believe our fleet is well positioned to meet the existing ELG regulations. Our power plant facilities already have advanced wastewater treatment technologies installed that meet many of the discharge limits established by this rule. There will, however, need to be modifications to the BATW systems at Weston Unit 3 and OC 7 and OC 8. Also, one wastewater treatment system modification may be required for the wet FGD discharges from the six units that make up the OCPP and ERGS. Based on preliminary engineering, we estimate that compliance with the current rule will require $60 million in capital costs.
The ELG requirements for BATW and wet FGD systems are currently being re-evaluated by the EPA. In September 2017, the EPA issued a final rule (Postponement Rule) to postpone the earliest compliance date to November 1, 2020 for the BATW and wet FGD wastewater requirements while it reconsiders the ELG rule. The Postponement Rule left unchanged the latest ELG rule compliance date of December 31, 2023. In November 2019, the EPA Administrator signed the proposed ELG Reconsideration Rule to revise the treatment technology requirements related to BATW and wet FGD wastewaters at existing facilities. The EPA also proposed a provision that exempts facility owners from the new BATW and wet FGD requirements if a generating unit is retired by December 31, 2028. We expect the rule to be finalized in late 2020. In the meantime, we are currently evaluating what impact, if any, the proposed rule would have on our estimated compliance cost.
Land Quality
Manufactured Gas Plant Remediation
We have identified sites at which our utilities or a predecessor company owned or operated a manufactured gas plant or stored manufactured gas. We have also identified other sites that may have been impacted by historical manufactured gas plant activities. Our natural gas utilities are responsible for the environmental remediation of these sites, some of which are in the EPA Superfund Alternative Approach Program. We are also working with various state jurisdictions in our investigation and remediation planning. These sites are at various stages of investigation, monitoring, remediation, and closure.
In addition, we are coordinating the investigation and cleanup of some of these sites subject to the jurisdiction of the EPA under what is called a "multisite" program. This program involves prioritizing the work to be done at the sites, preparation and approval of documents common to all of the sites, and use of a consistent approach in selecting remedies. At this time, we cannot estimate future remediation costs associated with these sites beyond those described below.

03/31/2020 Form 10-Q | 27 | WEC Energy Group, Inc.

Table of Contents
The future costs for detailed site investigation, future remediation, and monitoring are dependent upon several variables including, among other things, the extent of remediation, changes in technology, and changes in regulation. Historically, our regulators have allowed us to recover incurred costs, net of insurance recoveries and recoveries from potentially responsible parties, associated with the remediation of manufactured gas plant sites. Accordingly, we have established regulatory assets for costs associated with these sites.
We have established the following regulatory assets and reserves for manufactured gas plant sites:

(in millions) |  | March 31, 2020 |  | December 31, 2019
Regulatory assets |  | $ | 686.4 |  |  | $ | 685.5 |
Reserves for future environmental remediation |  | 589.4 |  |  | 589.2 |

Consent Decrees
Wisconsin Public Service Corporation – Weston and Pulliam Power Plants
In November 2009, the EPA issued an NOV to WPS, which alleged violations of the CAA's New Source Review requirements relating to certain projects completed at the Weston and Pulliam power plants from 1994 to 2009. WPS entered into a Consent Decree with the EPA resolving this NOV. This Consent Decree was entered by the United States District Court for the Eastern District of Wisconsin in March 2013.
With the retirement of Pulliam Units 7 and 8 in October 2018, WPS completed the mitigation projects required by the Consent Decree and received a completeness letter from the EPA in October 2018. We plan to request termination of the WPS Consent Decree during 2020.
Joint Ownership Power Plants – Columbia and Edgewater
In December 2009, the EPA issued an NOV to Wisconsin Power and Light, the operator of the Columbia and Edgewater plants, and the other joint owners of these plants, including Madison Gas and Electric, WE (former co-owner of an Edgewater unit), and WPS. The NOV alleged violations of the CAA's New Source Review requirements related to certain projects completed at those plants. WPS, along with Wisconsin Power and Light, Madison Gas and Electric, and WE, entered into a Consent Decree with the EPA resolving this NOV. This Consent Decree was entered by the United States District Court for the Western District of Wisconsin in June 2013. As a result of the continued implementation of the Consent Decree related to the jointly owned Columbia and Edgewater plants, the Edgewater 4 generating unit was retired in September 2018.
Enforcement and Litigation Matters
We and our subsidiaries are involved in legal and administrative proceedings before various courts and agencies with respect to matters arising in the ordinary course of business. Although we are unable to predict the outcome of these matters, management believes that appropriate reserves have been established and that final settlement of these actions will not have a material effect on our financial condition or results of operations.
NOTE 20—SUPPLEMENTAL CASH FLOW INFORMATION

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019
Cash paid for interest, net of amount capitalized |  | $ | 85.8 |  |  | $ | 66.3 |
Cash paid (received) for income taxes, net |  | (11.2 | ) |  | 0.2 |
Significant non-cash investing and financing transactions: |  |  |  |
Accounts payable related to construction costs |  | 102.5 |  |  | 74.7 |

The statements of cash flows include our activity related to cash, cash equivalents, and restricted cash. Our restricted cash primarily consists of the cash held in the Integrys rabbi trust, which is used to fund participants' benefits under the Integrys deferred compensation plan and certain Integrys non-qualified pension plans. All assets held within the rabbi trust are restricted as they can only be withdrawn from the trust to make qualifying benefit payments. Our restricted cash also includes the restricted cash we received when WECI acquired ownership interests in Bishop Hill III and Upstream during August 2018 and January 2019, respectively.

03/31/2020 Form 10-Q | 28 | WEC Energy Group, Inc.

Table of Contents
This cash is restricted as it can only be used to pay for any remaining costs associated with the construction of these wind generation facilities. See Note 2, Acquisitions, for more information on the acquisition of Upstream.
The following table reconciles the cash, cash equivalents, and restricted cash amounts reported within the balance sheets to the total of these amounts shown on the statements of cash flows:

(in millions) |  | March 31, 2020 |  | December 31, 2019
Cash and cash equivalents |  | $ | 15.4 |  |  | $ | 37.5 |
Restricted cash included in other long term assets |  | 50.3 |  |  | 44.8 |
Cash, cash equivalents, and restricted cash |  | $ | 65.7 |  |  | $ | 82.3 |

NOTE 21—REGULATORY ENVIRONMENT
Coronavirus Disease – 2019
The global outbreak of COVID-19 was declared a pandemic by the WHO and the CDC. COVID-19 has spread globally, including throughout the United States and, in turn, our service territories. Each of the states in which our regulated utilities operate has declared a public health emergency and has issued shelter-in-place orders in response to the COVID-19 pandemic. In addition, we have received written orders from the PSCW, the ICC, and the MPSC regarding certain actions to be taken for purposes of ensuring that essential utility services are available to customers in Wisconsin, Illinois, and Michigan, respectively. A summary of these orders is included below.
Wisconsin
On March 24, 2020, the PSCW issued two orders in response to COVID-19. The first order requires all public utilities in the state of Wisconsin, including WE, WPS, and WG, to temporarily suspend disconnections, the assessment of late fees, and deposit requirements for all customer classes. In addition, it requires utilities to reconnect customers that were previously disconnected, offer deferred payment arrangements to all customers, and streamline the application process for customers applying for utility service. The order will remain in effect during the public health emergency and until further notice from the PSCW.
In the second order, the PSCW authorized Wisconsin utilities to defer expenditures and certain foregone revenues resulting from compliance with the first order, and expenditures as otherwise incurred to ensure safe, reliable, and affordable access to utility services during the declared public health emergency. The PSCW has affirmed that this authorization for deferral includes the incremental increase in uncollectible expense above what is currently being recovered in rates. As WE, WPS, and WG already have a cost recovery mechanism in place to recover uncollectible expense for residential customers, this new deferral will only impact the recovery of uncollectible expense for their commercial and industrial customers. The PSCW will review the recoverability and examine the prudency of any deferred amounts in future rate proceedings.
As of March 31, 2020, our Wisconsin utilities had not recorded any deferrals related to the COVID-19 pandemic. A limited number of expenditures have been identified, and we anticipate amounts will be deferred in the second quarter of 2020. WE, WPS, and WG have begun to experience foregone revenues related to their inability to charge late fees as a result of the PSCW order, and will continue to evaluate future incremental costs and foregone revenues for potential recovery as they arise.
Illinois
On March 18, 2020, the ICC issued an order to all Illinois utilities, including PGL and NSG, requiring, among other things, a moratorium on disconnections of utility service and a suspension of late fees and penalties during the declared public health emergency. The moratorium on disconnections and the suspension of late fees and penalties applies to all utility customer classes and will remain in effect until May 1, 2020, or until the Illinois governor announces the end of the COVID-19 public health emergency, whichever is later. To ensure that customers will continue to receive utility services for a period of time after the public health emergency ends, utilities in Illinois will also be required to temporarily enact more flexible credit and collections procedures for a period of no less than six months after the moratorium is lifted. PGL and NSG filed their proposed flexible credit and collection procedures with the ICC on March 27, 2020.

03/31/2020 Form 10-Q | 29 | WEC Energy Group, Inc.

Table of Contents
As required in the ICC order, PGL and NSG are tracking foregone late fees and expenses resulting from the measures they are taking in response to the COVID-19 public health emergency, including, but not limited to, the measures required by the ICC's order. PGL and NSG have requested that the ICC allow them to defer these expenses.
Michigan
On April 15, 2020, the MPSC issued an order requiring Michigan utilities, including MGU and UMERC, to put certain minimum protections in place during the COVID-19 pandemic. The minimum protections required by the order include the suspension of disconnections, late payment fees, deposits, and reconnection fees for certain vulnerable customers. In addition, utilities are required to extend access to and flexibility of payment plans to customers financially impacted by COVID-19. The MPSC authorized all Michigan utilities to defer, for potential future recovery, uncollectible expense incurred on or after March 24, 2020 that exceeds the amounts being recovered in rates. The MPSC is evaluating whether additional COVID-19-related expenses or certain foregone revenues should also be deferred by Michigan utilities.
As required in the MPSC order, MGU and UMERC filed responses with the MPSC on April 20, 2020 affirming the actions they are taking to protect customers during the declared public health emergency. The actions being taken by MGU and UMERC provide protections to more customers than required by the MPSC order. These actions include suspending disconnections for all residential customers, suspending the assessment of late fees, as well as restoring electric and natural gas service for all customers on a payment plan, waiving deposit requirements for new service, and enhancing payment plan options for all customers.
Wisconsin Electric Power Company, Wisconsin Public Service Corporation, and Wisconsin Gas LLC
2020 and 2021 Rates
In March 2019, WE, WPS, and WG filed applications with the PSCW to increase their retail electric, natural gas, and steam rates, as applicable, effective January 1, 2020. In August 2019, all three utilities filed applications with the PSCW for approval of settlement agreements entered into with certain intervenors to resolve several outstanding issues in each utility's respective rate case. In December 2019, the PSCW issued written orders that approved the settlement agreements without material modification and addressed the remaining outstanding issues that were not included in the settlement agreements. The new rates became effective January 1, 2020. The final orders reflect the following:

|  | WE |  | WPS |  | WG
2020 Effective rate increase (decrease) |  |  |  |  |  |  |  |  |  |  |  |
Electric (1) (2) |  | $ | 15.3 | million | / | 0.5% |  | $ | 15.8 | million | / | 1.6% |  | N/A
Gas (3) |  | $ | 10.4 | million | / | 2.8% |  | $ | 4.3 | million | / | 1.4% |  | $ | (1.5 | ) million | / | (0.2)%
Steam |  | $ | 1.9 | million | / | 8.6% |  | N/A |  | N/A
ROE |  | 10.0% |  | 10.0% |  | 10.2%
Common equity component average on a financial basis |  | 52.5% |  | 52.5% |  | 52.5%

(1) | Amounts are net of certain deferred tax benefits from the Tax Legislation that were utilized to reduce near-term rate impact. The WE and WPS rate orders reflect the majority of the unprotected deferred tax benefits from the Tax Legislation being amortized over two years. For WE, approximately $65 million of tax benefits will be amortized in each of 2020 and 2021. For WPS, approximately $11 million of tax benefits are being amortized in 2020 and approximately $39 million will be amortized in 2021. The unprotected deferred tax benefits related to the unrecovered balances of WE's recently retired plants and its SSR regulatory asset are being used to reduce the related regulatory asset. Unprotected deferred tax benefits by their nature are eligible to be returned to customers in a manner and timeline determined to be appropriate by our regulators.

(2) | The WPS rate order is net of $21 million of refunds related to its 2018 earnings sharing mechanism. These refunds will be made to customers evenly over two years, with half being returned in 2020 and the remainder in 2021.

(3) | The WE amount includes certain deferred tax expense from the Tax Legislation, and the WPS and WG amounts are net of certain deferred tax benefits from the Tax Legislation that were utilized to reduce near-term rate impact. The rate orders for all three gas utilities reflect all of the unprotected deferred tax expense and benefits from the Tax Legislation being amortized evenly over four years. For WE, approximately $5 million of previously deferred tax expense will be amortized each year. For WPS and WG, approximately $5 million and $3 million, respectively, of previously deferred tax benefits will be amortized each year. Unprotected deferred tax expense and benefits by their nature are eligible to be recovered from or returned to customers in a manner and timeline determined to be appropriate by our regulators.

03/31/2020 Form 10-Q | 30 | WEC Energy Group, Inc.

Table of Contents
In accordance with its rate order, WE will seek a financing order from the PSCW to securitize $100 million of Pleasant Prairie power plant's book value, plus the carrying costs accrued on the $100 million during the securitization process and related fees. The securitization will reduce the carrying costs for the $100 million, benefiting customers.
The WPS rate order allows WPS to collect the previously deferred revenue requirement for ReACT™ costs above the authorized $275.0 million level. The total cost of the ReACT™ project was $342 million. This regulatory asset will be collected from customers over eight years.
All three Wisconsin utilities will continue having an earnings sharing mechanism through 2021. The earnings sharing mechanism was modified from its previous structure to one that is consistent with other Wisconsin investor-owned utilities. Under the new earnings sharing mechanism, if the utility earns above its authorized ROE: (i) the utility retains 100.0% of earnings for the first 25 basis points above the authorized ROE; (ii) 50.0% of the next 50 basis points is refunded to customers; and (iii) 100.0% of any remaining excess earnings is refunded to customers. In addition, the rate orders also require WE, WPS, and WG to maintain residential and small commercial electric and natural gas customer fixed charges at previously authorized rates and to maintain the status quo for WE's and WPS's electric market-based rate programs for large industrial customers through 2021.
2018 and 2019 Rates
During April 2017, WE, WPS, and WG filed an application with the PSCW for approval of a settlement agreement they made with several of their commercial and industrial customers regarding 2018 and 2019 base rates. In September 2017, the PSCW issued an order that approved the settlement agreement, which froze base rates through 2019 for electric, natural gas, and steam customers of WE, WPS, and WG. Based on the PSCW order, the authorized ROE for WE, WPS, and WG remained at 10.2%, 10.0%, and 10.3%, respectively, and the capital cost structure for all of our Wisconsin utilities remained unchanged through 2019.
In addition to freezing base rates, the settlement agreement extended and expanded the electric real-time market pricing program options for large commercial and industrial customers and mitigated the continued growth of certain escrowed costs at WE during the base rate freeze period by accelerating the recognition of certain tax benefits. WE was flowing through the tax benefit of its repair-related deferred tax liabilities in 2018 and 2019, to maintain certain regulatory asset balances at their December 31, 2017 levels. While WE would typically follow the normalization accounting method and utilize the tax benefits of the deferred tax liabilities in rate-making as an offset to rate base, benefiting customers over time, the federal tax code does allow for passing these tax repair-related benefits to ratepayers much sooner using the flow through accounting method. The flow through treatment of the repair-related deferred tax liabilities offset the negative income statement impact of holding the regulatory assets level, resulting in no change to net income.
The agreement also allowed WPS to extend through 2019, the deferral for the revenue requirement of ReACT™ costs above the authorized $275.0 million level, and other deferrals related to WPS's electric real-time market pricing program and network transmission expenses.
Pursuant to the settlement agreement, WPS also agreed to adopt, beginning in 2018, the earnings sharing mechanism that had been in place for WE and WG since January 2016, and all three utilities agreed to keep the mechanism in place through 2019. Under this earnings sharing mechanism, if WE, WPS, or WG earned above its authorized ROE, 50% of the first 50 basis points of additional utility earnings were required to be refunded to customers. All utility earnings above the first 50 basis points were also required to be refunded to customers.
Liquefied Natural Gas Facilities
In November 2019, WE and WG filed a joint application with the PSCW requesting approval for each company to construct its own LNG facility. If approved, each facility would provide one billion cubic feet of natural gas supply to meet peak demand without requiring the construction of additional interstate pipeline capacity. These facilities are expected to reduce the likelihood of constraints on WE's and WG's natural gas systems during the highest demand days of winter. The total cost of both projects is estimated to be approximately $370 million, with approximately half being invested by each utility. Commercial operation of the LNG facilities is targeted for the end of 2023.

03/31/2020 Form 10-Q | 31 | WEC Energy Group, Inc.

Table of Contents
Solar Generation Projects
In August 2019, WE, along with an unaffiliated utility, filed an application with the PSCW for approval to acquire an ownership interest in a proposed solar project, Badger Hollow II, that will be located in Iowa County, Wisconsin. Once constructed, WE will own 100 MW of the output of this project. WE's share of the cost of this project is estimated to be $130 million. The PSCW issued a written order approving the acquisition of this project on March 6, 2020.
The Peoples Gas Light and Coke Company and North Shore Gas Company
Qualifying Infrastructure Plant Rider
In July 2013, Illinois Public Act 98-0057, The Natural Gas Consumer, Safety & Reliability Act, became law. This law provides PGL with a cost recovery mechanism that allows collection, through a surcharge on customer bills, of prudently incurred costs to upgrade Illinois natural gas infrastructure. In September 2013, PGL filed with the ICC requesting the proposed rider, which was approved in January 2014.
PGL's QIP rider is subject to an annual reconciliation whereby costs are reviewed for accuracy and prudency. In March 2020, PGL filed its 2019 reconciliation with the ICC, which, along with the 2018, 2017, and 2016 reconciliations, are still pending.
As of March 31, 2020, there can be no assurance that all costs incurred under PGL's QIP rider during the open reconciliation years will be deemed recoverable by the ICC.
Michigan Gas Utilities Corporation
2021 Rate Application
On February 3, 2020, MGU provided notification to the MPSC of its intent to file an application requesting an increase to MGU's natural gas rates to be effective January 1, 2021. However, MGU has decided that it will not be filing a rate case during the COVID-19 pandemic and will re-evaluate the timing of the rate filing at a later date.
NOTE 22—NEW ACCOUNTING PRONOUNCEMENTS
Cloud Computing
In August 2018, the FASB issued ASU 2018-15, Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. The standard allows entities who are customers in hosting arrangements that are service contracts to apply the existing internal-use software guidance to determine which implementation costs to capitalize as an asset related to the service contract and which costs to expense. The guidance specifies classification for capitalizing implementation costs and related amortization expense within the financial statements and requires additional disclosures. The adoption of ASU 2018-15, effective January 1, 2020, did not have a significant impact on our financial statements and related disclosures.
Disclosure Requirements for Defined Benefit Plans
In August 2018, the FASB issued ASU 2018-14, Disclosure Framework: Changes to the Disclosure Requirements for Defined Benefit Plans. The pronouncement modifies the disclosure requirements for defined benefit pension and OPEB plans. The guidance removes disclosures that are no longer considered cost beneficial, clarifies the specific requirements of disclosures and adds disclosure requirements identified as relevant. The modifications affect annual period disclosures and must be applied on a retrospective basis to all periods presented. The guidance will be effective for annual reporting periods ending after December 15, 2020, with early adoption permitted. We are currently evaluating the effects of this pronouncement on the notes to our financial statements.
Simplifying the Accounting for Income Taxes
In December 2019, the FASB issued ASU 2019-12, Simplifying the Accounting for Income Taxes. The new standard removes certain exceptions for performing intraperiod allocation and calculating income taxes in interim periods and also adds guidance to reduce complexity in certain areas, including recognizing deferred taxes for tax goodwill and allocating taxes to members of a consolidated

03/31/2020 Form 10-Q | 32 | WEC Energy Group, Inc.

Table of Contents
group. The guidance will be effective for annual and interim periods beginning after December 15, 2020. We will adopt the new standard effective January 1, 2021, and do not expect the adoption to have a material impact on our financial statements and related disclosures.
Reference Rate Reform
In March 2020, the FASB issued ASU No. 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships, and other transactions affected by reference rate reform if certain criteria are met. The amendments apply only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform. The amendments are effective for all entities as of March 12, 2020 through December 31, 2022. We are currently evaluating the impact this guidance may have on our financial statements and related disclosures.

03/31/2020 Form 10-Q | 33 | WEC Energy Group, Inc.

Table of Contents
ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
CORPORATE DEVELOPMENTS
The following discussion should be read in conjunction with the accompanying financial statements and related notes and our 2019 Annual Report on Form 10-K.
Introduction
We are a diversified holding company with natural gas and electric utility operations (serving customers in Wisconsin, Illinois, Michigan, and Minnesota), an approximately 60% equity ownership interest in American Transmission Company LLC (ATC) (a for-profit electric transmission company regulated by the FERC and certain state regulatory commissions), and non-utility energy infrastructure operations through We Power (which owns generation assets in Wisconsin), Bluewater (which owns underground natural gas storage facilities in Michigan), and WEC Infrastructure LLC (WECI), which holds ownership interests in several wind generating facilities.
In August 2019, WECI signed an agreement to acquire an 80% ownership interest in Thunderhead Wind Energy LLC (Thunderhead), a 300 MW wind generating facility under construction in Antelope and Wheeler counties in Nebraska. In January 2020, WECI signed an agreement to acquire an 80% ownership interest in Blooming Grove Wind Energy Center LLC (Blooming Grove), a 250 MW wind generating facility under construction in McLean County, Illinois. In February 2020, WECI agreed to acquire an additional 10% ownership interest in both Thunderhead and Blooming Grove. See Note 2, Acquisitions, for more information.
Corporate Strategy
Our goal is to continue to build and sustain long-term value for our shareholders and customers by focusing on the fundamentals of our business: reliability; operating efficiency; financial discipline; customer care; and safety.
Reshaping Our Generation Fleet
The planned reshaping of our generation fleet balances reliability and customer cost with environmental stewardship. Taken as a whole, this plan should reduce costs to customers, preserve fuel diversity, and lower carbon emissions. Generation reshaping includes retiring older fossil fuel generation units, building state-of-the-art natural gas generation, and investing in cost-effective zero-carbon generation. In 2019, we met and exceeded our 2030 goal of reducing CO 2 emissions by 40% below 2005 levels, and are re-evaluating our longer-term CO 2 reduction goals. We have already retired more than 1,800 MW of coal-fired generation since the beginning of 2018, and expect to continue adding natural gas-fired generating units and renewable generation, including utility-scale solar projects. The plan included the March 2019 retirement of the Presque Isle power plant as well as the 2018 retirements of the Pleasant Prairie power plant, the Pulliam power plant, and the jointly-owned Edgewater Unit 4 generating units.
As part of our commitment to invest in zero-carbon generation, we have received approval to invest in 300 MW of utility-scale solar within our Wisconsin segment. Wisconsin Public Service Corporation (WPS) has partnered with an unaffiliated utility to construct two solar projects in Wisconsin. Badger Hollow Solar Farm I (Badger Hollow I) is located in Iowa County, Wisconsin, and the Two Creeks Solar Project (Two Creeks) is located in Manitowoc County, Wisconsin. Once constructed, WPS will own 100 MW of the output of each project for a total of 200 MW. The Public Service Commission of Wisconsin (PSCW) approved the acquisition of these two projects in April 2019. Construction began at Two Creeks and Badger Hollow I in August 2019 and October 2019, respectively. Commercial operation for Two Creeks and Badger Hollow I is targeted for December 2020 and April 2021, respectively. Wisconsin Electric Power Company (WE) has partnered with an unaffiliated utility to acquire an ownership interest in a proposed solar project, Badger Hollow Solar Farm II, that will be located in Iowa County, Wisconsin. Once constructed, WE will own 100 MW of the output of this project. The PSCW issued a written order approving the acquisition of this project in March 2020.
In December 2018, WE received approval from the PSCW for two renewable energy pilot programs. The Solar Now pilot is expected to add 35 MW of solar generation to WE's portfolio, allowing non-profit and governmental entities, as well as commercial and industrial customers to site utility owned solar arrays on their property. Under this program, in 2019, WE constructed 5 MW of solar generation and expects to construct more than that in 2020. The second program, the Dedicated Renewable Energy Resource pilot, would allow large commercial and industrial customers to access renewable resources that WE would operate, adding up to 150 MW of renewables to WE's portfolio, and allowing these larger customers to meet their sustainability and renewable energy goals.

03/31/2020 Form 10-Q | 34 | WEC Energy Group, Inc.

Table of Contents
As the cost of renewable energy generation continues to decline, these utility-scale solar projects and the WE pilot programs have become cost effective opportunities for WEC Energy Group and our customers to participate in renewable energy.
We also have a goal to decrease the rate of methane emissions from the natural gas distribution lines in our network by 30% per mile by the year 2030 from a 2011 baseline. We were over half way toward meeting that goal at the end of 2019.
Reliability
We have made significant reliability-related investments in recent years, and plan to continue strengthening and modernizing our generation fleet and distribution networks to further improve reliability. Our investments, coupled with our commitment to operating efficiency and customer care, resulted in We Energies and WPS being recognized in 2019 by PA Consulting Group, an independent consulting firm, for superior reliability of their electric delivery networks. This was the ninth consecutive year that We Energies has been named the most reliable utility in the Midwest and the first time WPS has been recognized.
Below are a few examples of reliability projects that are proposed or currently underway.

• | Subject to PSCW approval, WE plans to install approximately 46 miles of natural gas transmission main in southeastern Wisconsin. This project has been designated as the "Lakeshore Lateral Project." The primary purpose of this project is to increase the quantity and reliability of natural gas service, both on a peak day and annually, in southeastern Wisconsin. Construction for the project is tentatively scheduled to begin during the fourth quarter of 2020, and the project is expected to be completed by the end of 2021.

• | WE and Wisconsin Gas LLC (WG) each plan to construct their own LNG facility. Subject to PSCW approval, each facility would provide approximately one billion cubic feet of natural gas supply to meet anticipated peak demand without requiring the construction of additional interstate pipeline capacity. These facilities are expected to reduce the likelihood of constraints on WE's and WG's natural gas systems during the highest demand days of winter. Commercial operation of the LNG facilities is targeted for the end of 2023.

• | The Peoples Gas Light and Coke Company continues to work on its Natural Gas System Modernization Program, which primarily involves replacing old cast and ductile iron pipes and facilities in Chicago’s natural gas delivery system with modern polyethylene pipes to reinforce the long-term safety and reliability of the system.

• | WPS continues work on its System Modernization and Reliability Project, which involves modernizing parts of its electric distribution system, including burying or upgrading lines. The project focuses on constructing facilities to improve the reliability of electric service WPS provides to its customers. WE, WPS, and WG also continue to upgrade their electric and natural gas distribution systems to enhance reliability.

Operating Efficiency
We continually look for ways to optimize the operating efficiency of our company. For example, we are making progress on our Advanced Metering Infrastructure program, replacing aging meter-reading equipment on both our network and customer property. An integrated system of smart meters, communication networks, and data management programs enables two-way communication between our utilities and our customers. This program reduces the manual effort for disconnects and reconnects and enhances outage management capabilities.
We continue to focus on integrating the resources of all our businesses and finding the best and most efficient processes while meeting all applicable legal and regulatory requirements. We also strive to provide the best value to our customers and shareholders by embracing constructive change, leveraging capabilities and expertise, and using creative solutions to meet or exceed our customers' expectations.
Financial Discipline
A strong adherence to financial discipline is essential to meeting our earnings projections and maintaining a strong balance sheet, stable cash flows, a growing dividend, and quality credit ratings.

03/31/2020 Form 10-Q | 35 | WEC Energy Group, Inc.

Table of Contents
We follow an asset management strategy that focuses on investing in and acquiring assets consistent with our strategic plans, as well as disposing of assets, including property, plants, equipment, and entire business units, that are no longer strategic to operations, are not performing as intended, or have an unacceptable risk profile. See Note 2, Acquisitions, for information about our acquisitions or planned acquisitions of portions of wind energy generation facilities in Illinois and Nebraska.
Our investment focus remains in our regulated utility and non-utility energy infrastructure businesses, as well as our investment in ATC. We expect total capital expenditures for our regulated utility and non-utility energy infrastructure businesses to be approximately $13.7 billion from 2020 to 2024. Specific projects are discussed in more detail below under Liquidity and Capital Resources.
From 2020 to 2024, we expect capital contributions to ATC to be approximately $150 million. Capital investments at ATC will be funded utilizing these capital contributions, in addition to cash generated by ATC from operations and debt. We currently forecast that our share of ATC's projected capital expenditures over the next five years will be $1.3 billion.
Exceptional Customer Care
Our approach is driven by an intense focus on delivering exceptional customer care every day. We strive to provide the best value for our customers by demonstrating personal responsibility for results, leveraging our capabilities and expertise, and using creative solutions to meet or exceed our customers’ expectations.
Safety
We have a long-standing commitment to both workplace and public safety, and under our "Target Zero" mission, we have an ultimate goal of zero incidents, accidents, and injuries. We also set goals around injury-prevention activities that raise awareness and facilitate conversations about employee safety. Our corporate safety program provides a forum for addressing employee concerns, training employees and contractors on current safety standards, and recognizing those who demonstrate a safety focus.

03/31/2020 Form 10-Q | 36 | WEC Energy Group, Inc.

Table of Contents
RESULTS OF OPERATIONS
THREE MONTHS ENDED MARCH 31, 2020
Consolidated Earnings
The following table compares our consolidated results for the first quarter of 2020 with the first quarter of 2019, including favorable or better, "B", and unfavorable or worse, "W", variances:

|  | Three Months Ended March 31
(in millions, except per share data) |  | 2020 |  | 2019 |  | B (W) |  | Change Related to 2019 Tax Repairs |  | Change Related to We Power Lease |  | Remaining Change B (W)
Wisconsin |  | $ | 426.8 |  |  | $ | 361.8 |  |  | $ | 65.0 |  |  | $ | 40.7 |  |  | $ | (0.7 | ) |  | $ | 25.0 |
Illinois |  | 161.6 |  |  | 137.9 |  |  | 23.7 |  |  | — |  |  | — |  |  | 23.7 |
Other states |  | 37.4 |  |  | 41.5 |  |  | (4.1 | ) |  | — |  |  | — |  |  | (4.1 | )
Non-utility energy infrastructure |  | 91.5 |  |  | 92.7 |  |  | (1.2 | ) |  | — |  |  | — |  |  | (1.2 | )
Corporate and other |  | (4.2 | ) |  | (3.9 | ) |  | (0.3 | ) |  | — |  |  | — |  |  | (0.3 | )
Reconciling eliminations |  | (86.5 | ) |  | (87.2 | ) |  | 0.7 |  |  | — |  |  | 0.7 |  |  | — |
Total operating income |  | 626.6 |  |  | 542.8 |  |  | 83.8 |  |  | 40.7 |  |  | — |  |  | 43.1 |
Equity in earnings of transmission affiliates |  | 39.8 |  |  | 36.1 |  |  | 3.7 |  |  | — |  |  | — |  |  | 3.7 |
Other income, net |  | 5.6 |  |  | 30.9 |  |  | (25.3 | ) |  | — |  |  | — |  |  | (25.3 | )
Interest expense |  | 129.4 |  |  | 124.4 |  |  | (5.0 | ) |  | — |  |  | — |  |  | (5.0 | )
Income before income taxes |  | 542.6 |  |  | 485.4 |  |  | 57.2 |  |  | 40.7 |  |  | — |  |  | 16.5 |
Income tax expense |  | 90.0 |  |  | 65.0 |  |  | (25.0 | ) |  | (40.7 | ) |  | — |  |  | 15.7 |
Preferred stock dividends of subsidiary |  | 0.3 |  |  | 0.3 |  |  | — |  |  | — |  |  | — |  |  | — |
Net loss attributed to noncontrolling interests |  | 0.2 |  |  | — |  |  | 0.2 |  |  | — |  |  | — |  |  | 0.2 |
Net income attributed to common shareholders |  | $ | 452.5 |  |  | $ | 420.1 |  |  | $ | 32.4 |  |  | $ | — |  |  | $ | — |  |  | $ | 32.4 |
Diluted earnings per share |  | $ | 1.43 |  |  | $ | 1.33 |  |  | $ | 0.10 |  |  |  |  |  |  |

Earnings increased $32.4 million during the first quarter of 2020, compared with the same quarter in 2019. The table above shows the income statement impacts due to the flow through of tax repairs during the first quarter of 2019. WE was flowing through the tax benefit of its repair related deferred tax liabilities in 2018 and 2019, to maintain certain regulatory asset balances at their December 31, 2017 levels. As shown in the table above, the changes related to the flow through of tax repairs had no impact on net income attributed to common shareholders. See Note 21, Regulatory Environment, for more information on the flow through of tax repairs.
The significant factors impacting the $32.4 million increase in earnings were:

• | A $25.0 million remaining increase in operating income at the Wisconsin segment, driven by a net increase in margins related to the impact of the Wisconsin rate orders approved by the PSCW, effective January 1, 2020. This increase in margins is net of the amounts returned to customers related to the unprotected deferred tax benefits from the Tax Legislation. The negative impact on margins from the return of these tax savings to customers was offset by a reduction to income tax expense. See Note 21, Regulatory Environment, for more information on the Wisconsin rate orders. Also contributing to the increase in operating income was lower operating expenses, primarily due to a decrease in deferred compensation costs during the first quarter of 2020, along with a positive quarter-over-quarter impact from collections of fuel and purchased power costs compared with costs approved in rates. These increases in operating income were partially offset by a decrease in electric and natural gas margins from lower sales volumes, driven by warmer winter weather during the first quarter of 2020, compared with the same quarter in 2019.

• | A $23.7 million increase in operating income at the Illinois segment, driven by lower operating expenses. Natural gas maintenance costs decreased during the first quarter of 2020, which reflects the benefit of a warmer than normal first quarter of 2020

03/31/2020 Form 10-Q | 37 | WEC Energy Group, Inc.

Table of Contents
compared with the colder than normal first quarter of 2019. Higher natural gas margins at PGL due to continued capital investment in the SMP project under its QIP rider also contributed to the increase in operating income.

• | A $15.7 million remaining decrease in income tax expense, primarily driven by the 2020 amortization of the unprotected excess deferred tax benefits from the Tax Legislation in accordance with the Wisconsin rate orders approved by the PSCW, effective January 1, 2020. The decrease in income tax expense from this amortization was offset in operating income at the Wisconsin segment. See Note 21, Regulatory Environment, for more information on the Wisconsin rate orders.

These increases in earnings were partially offset by:

• | A $25.3 million decrease in other income, net, primarily driven by net losses on the investments held in the Integrys rabbi trust during the first quarter of 2020, compared with net gains during the same quarter in 2019. These investment gains and losses partially offset the changes in benefits costs related to deferred compensation, which are included in operating income. See Note 11, Fair Value Measurements, for more information on our investments held in the Integrys rabbi trust.

• | A $5.0 million increase in interest expense, driven by higher long-term debt balances during the first quarter of 2020, primarily used to fund capital investments.

Non-GAAP Financial Measures
The discussions below address the operating income contribution of each of our segments and include financial information prepared in accordance with GAAP, as well as electric margins and natural gas margins, which are not measures of financial performance under GAAP. Electric margin (electric revenues less fuel and purchased power costs) and natural gas margin (natural gas revenues less cost of natural gas sold) are non-GAAP financial measures because they exclude other operation and maintenance expense, depreciation and amortization, and property and revenue taxes.
We believe that electric and natural gas margins provide a useful basis for evaluating utility operations since the majority of prudently incurred fuel and purchased power costs, as well as prudently incurred natural gas costs, are passed through to customers in current rates. As a result, management uses electric and natural gas margins internally when assessing the operating performance of our segments as these measures exclude the majority of revenue fluctuations caused by changes in these expenses. Similarly, the presentation of electric and natural gas margins herein is intended to provide supplemental information for investors regarding our operating performance.
Our electric margins and natural gas margins may not be comparable to similar measures presented by other companies. Furthermore, these measures are not intended to replace operating income as determined in accordance with GAAP as an indicator of our segment operating performance. Operating income for the first quarter of 2020 and 2019 for each of our segments is presented in the “Consolidated Earnings” table above.
Each applicable segment operating income discussion below includes a table that provides the calculation of electric margins and natural gas margins, as applicable, along with a reconciliation to segment operating income.

03/31/2020 Form 10-Q | 38 | WEC Energy Group, Inc.

Table of Contents
Wisconsin Segment Contribution to Operating Income

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019 |  | B (W)
Electric revenues |  | $ | 1,038.2 |  |  | $ | 1,066.6 |  |  | $ | (28.4 | )
Fuel and purchased power |  | 300.8 |  |  | 338.8 |  |  | 38.0 |
Total electric margins |  | 737.4 |  |  | 727.8 |  |  | 9.6 |
Natural gas revenues |  | 460.7 |  |  | 566.8 |  |  | (106.1 | )
Cost of natural gas sold |  | 236.5 |  |  | 352.6 |  |  | 116.1 |
Total natural gas margins |  | 224.2 |  |  | 214.2 |  |  | 10.0 |
Total electric and natural gas margins |  | 961.6 |  |  | 942.0 |  |  | 19.6 |
Other operation and maintenance |  | 330.8 |  |  | 392.7 |  |  | 61.9 |
Depreciation and amortization |  | 165.4 |  |  | 151.0 |  |  | (14.4 | )
Property and revenue taxes |  | 38.6 |  |  | 36.5 |  |  | (2.1 | )
Operating income |  | $ | 426.8 |  |  | $ | 361.8 |  |  | $ | 65.0 |

The following table shows a breakdown of other operation and maintenance:

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019 |  | B (W)
Operation and maintenance not included in line items below |  | $ | 138.3 |  |  | $ | 176.1 |  |  | $ | 37.8 |
Transmission (1) |  | 129.8 |  |  | 105.8 |  |  | (24.0 | )
We Power (2) |  | 30.3 |  |  | 35.9 |  |  | 5.6 |
Regulatory amortizations and other pass through expenses (3) |  | 32.4 |  |  | 44.4 |  |  | 12.0 |
Transmission expense related to the flow through of tax repairs (4) |  | — |  |  | 15.3 |  |  | 15.3 |
Transmission expense related to Tax Legislation (5) |  | — |  |  | 15.2 |  |  | 15.2 |
Total other operation and maintenance |  | $ | 330.8 |  |  | $ | 392.7 |  |  | $ | 61.9 |

(1) | Represents transmission expense that we are authorized to collect in rates, in accordance with the PSCW's approval of escrow accounting for ATC and MISO network transmission expenses for our Wisconsin electric utilities. As a result, WE and WPS defer as a regulatory asset or liability, the difference between actual transmission costs and those included in rates until recovery or refund is authorized in a future rate proceeding. During the first quarter of 2020 and 2019, $121.0 million and $118.6 million, respectively, of costs were billed to our electric utilities by transmission providers.

(2) | Represents costs associated with the We Power generation units, including operating and maintenance costs recognized by WE. During the first quarter of 2020 and 2019, $35.1 million and $30.8 million, respectively, of operating and maintenance costs were billed to or incurred by WE related to the We Power generation units, with the difference in costs billed or incurred and expenses recognized, either deferred or deducted from the regulatory asset.

(3) | Regulatory amortizations and other pass through expenses are substantially offset in margins and therefore do not have a significant impact on operating income.

(4) | Represents additional transmission expense recorded in 2019 associated with WE's flow through of tax benefits of its repair-related deferred tax liabilities starting in 2018 in accordance with a settlement agreement with the PSCW, to maintain certain regulatory asset balances at their December 31, 2017 levels. This decrease in expenses was offset in income taxes. Since our transmission regulatory asset was eliminated at December 31, 2019, there were no tax benefits used in 2020.

(5) | Represents additional transmission expense recorded in 2019 associated with the May 2018 PSCW order requiring WE to use 80% of its current 2018 tax benefit, including the amortization associated with the revaluation of deferred taxes, to reduce its transmission regulatory asset balance. Since our transmission regulatory asset was eliminated at December 31, 2019, there were no tax benefits used in 2020.

03/31/2020 Form 10-Q | 39 | WEC Energy Group, Inc.

Table of Contents
The following tables provide information on delivered sales volumes by customer class and weather statistics:

|  | Three Months Ended March 31
|  | MWh (in thousands)
Electric Sales Volumes |  | 2020 |  | 2019 |  | B (W)
Customer Class |  |  |  |
Residential |  | 2,681.1 |  |  | 2,810.7 |  |  | (129.6 | )
Small commercial and industrial * |  | 3,096.9 |  |  | 3,181.1 |  |  | (84.2 | )
Large commercial and industrial * |  | 3,008.9 |  |  | 3,086.8 |  |  | (77.9 | )
Other |  | 42.5 |  |  | 45.0 |  |  | (2.5 | )
Total retail * |  | 8,829.4 |  |  | 9,123.6 |  |  | (294.2 | )
Wholesale |  | 742.5 |  |  | 843.7 |  |  | (101.2 | )
Resale |  | 1,996.4 |  |  | 1,355.5 |  |  | 640.9 |
Total sales in MWh * |  | 11,568.3 |  |  | 11,322.8 |  |  | 245.5 |

* | Includes distribution sales for customers who purchased power from an alternative electric supplier in Michigan.

|  | Three Months Ended March 31
|  | Therms (in millions)
Natural Gas Sales Volumes |  | 2020 |  | 2019 |  | B (W)
Customer Class |  |  |  |  |  |
Residential |  | 492.4 |  |  | 576.5 |  |  | (84.1 | )
Commercial and industrial |  | 291.5 |  |  | 338.1 |  |  | (46.6 | )
Total retail |  | 783.9 |  |  | 914.6 |  |  | (130.7 | )
Transport |  | 428.6 |  |  | 431.2 |  |  | (2.6 | )
Total sales in therms |  | 1,212.5 |  |  | 1,345.8 |  |  | (133.3 | )

|  | Three Months Ended March 31
|  | Degree Days
Weather |  | 2020 |  | 2019 |  | B (W)
WE and WG (1) |  |  |  |  |  |
Heating (3,319 Normal) |  | 2,925 |  |  | 3,483 |  |  | (16.0 | )%
WPS (2) |  |  |  |  |  |
Heating (3,704 Normal) |  | 3,368 |  |  | 3,841 |  |  | (12.3 | )%
UMERC (3) |  |  |  |  |  |
Heating (4,018 Normal) |  | 3,673 |  |  | 4,304 |  |  | (14.7 | )%

(1) | Normal degree days are based on a 20-year moving average of monthly temperatures from Mitchell International Airport in Milwaukee, Wisconsin.

(2) | Normal degree days are based on a 20-year moving average of monthly temperatures from the Green Bay, Wisconsin weather station.

(3) | Normal degree days are based on a 20-year moving average of monthly temperatures from the Iron Mountain, Michigan weather station.

Electric Utility Margins
Electric utility margins at the Wisconsin segment increased $9.6 million during the first quarter of 2020, compared with the same quarter in 2019. The significant factors impacting the higher electric utility margins were:

• | A $25.4 million increase in margins associated with WE's flow through of tax benefits of its repair-related deferred tax liabilities in 2019, in accordance with a settlement agreement with the PSCW to maintain certain regulatory assets at their December 31, 2017 levels. These tax benefits were no longer in effect for 2020. This increase in margins was offset in income taxes.

• | A $13.5 million quarter-over-quarter positive impact from collections of fuel and purchased power costs compared with costs approved in rates. Under the Wisconsin fuel rules, the margins of our electric utilities are impacted by under- or over-collections

03/31/2020 Form 10-Q | 40 | WEC Energy Group, Inc.

Table of Contents
of certain fuel and purchased power costs that are less than a 2% price variance from the costs included in rates, and the remaining variance that exceeds the 2% variance is deferred.

• | A $5.3 million increase related to Tilden, who owns an iron ore mine located in the Upper Peninsula of Michigan. Prior to the transfer of the mine as a full requirements customer of WE to UMERC as of April 1, 2019, the margin from the mine was being deferred for the benefit of Wisconsin retail electric customers, as ordered by the PSCW. On March 31, 2019, when the new natural gas-fired generating units began commercial operation, a new 20 year agreement with Tilden became effective under which Tilden began purchasing electric power from UMERC. Half of the cost of the generation solution is being recovered from Tilden under this new agreement.

These increases in margins were partially offset by:

• | A $19.7 million decrease related to lower retail sales volumes, driven by warmer winter weather during the first quarter of 2020, compared with the same quarter in 2019. As measured by heating degree days, the first quarter of 2020 was 16.0% and 12.3% warmer than the same quarter in 2019 in the Milwaukee area and Green Bay area, respectively.

• | A $12.7 million net decrease in margins related to the impact of the Wisconsin rate orders approved by the PSCW, effective January 1, 2020. This decrease in margins includes the impact of the savings from the Tax Legislation, including unprotected tax benefits, that we agreed to return to customers through bill credits or reductions in other regulatory assets.

Natural Gas Utility Margins
Natural gas utility margins at the Wisconsin segment increased $10.0 million during the first quarter of 2020, compared with the same quarter in 2019. The most significant factor impacting the increase in natural gas utility margins was a $33.2 million increase related to the impact of the Wisconsin rate orders approved by the PSCW, effective January 1, 2020, and includes the impact of the savings from the Tax Legislation, including unprotected tax benefits, which we agreed to return to customers. This increase was partially offset by a $24.8 million decrease in margins from lower sales volumes, driven by warmer winter weather during the first quarter of 2020, compared with the same quarter in 2019.
Operating Income
Operating income at the Wisconsin segment increased $65.0 million during the first quarter of 2020, compared with the same quarter in 2019. This increase was driven by $45.4 million of lower operating expenses (which include other operation and maintenance, depreciation and amortization, and property and revenue taxes), and the $19.6 million increase in margins discussed above.
The significant factors impacting the decrease in operating expenses during the first quarter of 2020, compared with the same quarter in 2019, were:

• | A $20.1 million decrease in benefit costs, primarily related to lower deferred compensation costs during the first quarter of 2020.

• | A $15.3 million decrease in transmission expense related to the flow through of tax repairs in 2019, as discussed in the notes under the other operation and maintenance table above. This decrease in transmission expense was offset in income taxes.

• | A $15.2 million decrease in transmission expense associated with the May 2018 order from the PSCW related to our required treatment of the benefits associated with the Tax Legislation, as discussed in the notes under the other operation and maintenance table above. This decrease in transmission expense was offset by a corresponding decrease in margins.

• | A $12.0 million decrease in regulatory amortizations and other pass through expenses, as discussed in the notes under the other operation and maintenance table above.

• | A $9.0 million decrease in electric and natural gas distribution expenses during the first quarter of 2020, partially driven by lower maintenance and storm restoration expense.

• | A $5.6 million decrease in other operation and maintenance expense related to the We Power leases as discussed in the notes under the other operation and maintenance table above.

03/31/2020 Form 10-Q | 41 | WEC Energy Group, Inc.

Table of Contents

• | A $2.7 million decrease in other operation and maintenance expense related to our power plants, driven by lower operation and maintenance associated with the retirement of the PIPP in March 2019.

These decreases in operating expenses were partially offset by:

• | A $24.0 million increase in transmission expense, primarily driven by an increase in amortization related to escrow accounting as approved in the PSCW's 2019 rate order, which was effective January 1, 2020. See the notes under the other operation and maintenance table above for more information on escrow accounting.

• | A $14.4 million increase in depreciation and amortization, driven by assets being placed into service as we continue to execute on our capital plan as well as an increase related to the We Power leases.

Illinois Segment Contribution to Operating Income
Since the majority of PGL and NSG customers use natural gas for heating, operating income at the Illinois segment is sensitive to weather and is generally higher during the winter months.

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019 |  | B (W)
Natural gas revenues |  | $ | 447.6 |  |  | $ | 536.5 |  |  | $ | (88.9 | )
Cost of natural gas sold |  | 126.7 |  |  | 219.8 |  |  | 93.1 |
Total natural gas margins |  | 320.9 |  |  | 316.7 |  |  | 4.2 |
Other operation and maintenance |  | 104.1 |  |  | 128.2 |  |  | 24.1 |
Depreciation and amortization |  | 47.5 |  |  | 44.5 |  |  | (3.0 | )
Property and revenue taxes |  | 7.7 |  |  | 6.1 |  |  | (1.6 | )
Operating income |  | $ | 161.6 |  |  | $ | 137.9 |  |  | $ | 23.7 |

The following table shows a breakdown of other operation and maintenance:

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019 |  | B (W)
Operation and maintenance not included in the line items below |  | $ | 68.7 |  |  | $ | 88.0 |  |  | $ | 19.3 |
Riders * |  | 36.1 |  |  | 40.5 |  |  | 4.4 |
Regulatory amortizations * |  | (0.7 | ) |  | (0.4 | ) |  | 0.3 |
Other |  | — |  |  | 0.1 |  |  | 0.1 |
Total other operation and maintenance |  | $ | 104.1 |  |  | $ | 128.2 |  |  | $ | 24.1 |

* | These riders and regulatory amortizations are substantially offset in margins and therefore do not have a significant impact on operating income.

The following tables provide information on delivered volumes by customer class and weather statistics:

|  | Three Months Ended March 31
|  | Therms (in millions)
Natural Gas Sales Volumes |  | 2020 |  | 2019 |  | B (W)
Customer Class |  |  |  |  |
Residential |  | 380.4 |  |  | 449.0 |  |  | (68.6 | )
Commercial and industrial |  | 156.0 |  |  | 174.9 |  |  | (18.9 | )
Total retail |  | 536.4 |  |  | 623.9 |  |  | (87.5 | )
Transport |  | 329.2 |  |  | 387.9 |  |  | (58.7 | )
Total sales in therms |  | 865.6 |  |  | 1,011.8 |  |  | (146.2 | )

03/31/2020 Form 10-Q | 42 | WEC Energy Group, Inc.

Table of Contents

|  | Three Months Ended March 31
|  | Degree Days
Weather * |  | 2020 |  | 2019 |  | B (W)
Heating (3,224 Normal) |  | 2,793 |  |  | 3,387 |  |  | (17.5 | )%

* | Normal heating degree days are based on a 12-year moving average of monthly temperatures from Chicago's O'Hare Airport.

Natural Gas Utility Margins
Natural gas utility margins at the Illinois segment, net of the $4.4 million impact of the riders referenced in the table above, increased $8.6 million during the first quarter of 2020, compared with the same quarter in 2019. The increase in margins was primarily driven by higher revenues at PGL due to continued capital investment in the SMP project under its QIP rider. PGL currently recovers the costs related to the SMP through a surcharge on customer bills pursuant to an ICC approved QIP rider, which is in effect through 2023. See Note 21, Regulatory Environment, for more information.
Operating Income
Operating income at the Illinois segment increased $23.7 million during the first quarter of 2020, compared with the same quarter in 2019. This increase was driven by the $8.6 million increase in margins discussed above, as well as $15.1 million of lower operating expenses (which include other operation and maintenance, depreciation and amortization, and property and revenue taxes), net of the impact of the riders referenced in the table above.
The significant factors impacting the decrease in operating expenses during the first quarter of 2020, compared with the same quarter in 2019 were:

• | A $10.3 million decrease in natural gas maintenance costs, which reflects the benefit of a warmer than normal first quarter of 2020 compared with the colder than normal first quarter of 2019.

• | A $5.3 million decrease in benefit costs, primarily related to lower pension expense and deferred compensation.

These decreases in operating expenses were partially offset by a $3.0 million increase in depreciation expense, primarily driven by PGL's continued capital investment in the SMP project.
Other States Segment Contribution to Operating Income
Since the majority of MGU and MERC customers use natural gas for heating, operating income at the Other States segment is sensitive to weather and is generally higher during the winter months.

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019 |  | B (W)
Natural gas revenues |  | $ | 146.4 |  |  | $ | 185.2 |  |  | $ | (38.8 | )
Cost of natural gas sold |  | 75.2 |  |  | 105.5 |  |  | 30.3 |
Total natural gas margins |  | 71.2 |  |  | 79.7 |  |  | (8.5 | )
Other operation and maintenance |  | 21.7 |  |  | 27.6 |  |  | 5.9 |
Depreciation and amortization |  | 7.8 |  |  | 6.5 |  |  | (1.3 | )
Property and revenue taxes |  | 4.3 |  |  | 4.1 |  |  | (0.2 | )
Operating income |  | $ | 37.4 |  |  | $ | 41.5 |  |  | $ | (4.1 | )

03/31/2020 Form 10-Q | 43 | WEC Energy Group, Inc.

Table of Contents
The following table shows a breakdown of other operation and maintenance:

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019 |  | B (W)
Operation and maintenance not included in line item below |  | $ | 16.2 |  |  | $ | 18.8 |  |  | $ | 2.6 |
Regulatory amortizations and other pass through expenses * |  | 5.5 |  |  | 8.8 |  |  | 3.3 |
Total other operation and maintenance |  | $ | 21.7 |  |  | $ | 27.6 |  |  | $ | 5.9 |

* | Regulatory amortizations and other pass through expenses are substantially offset in margins and therefore do not have a significant impact on operating income.

The following tables provide information on delivered sales volumes by customer class and weather statistics:

|  | Three Months Ended March 31
|  | Therms (in millions)
Natural Gas Sales Volumes |  | 2020 |  | 2019 |  | B (W)
Customer Class |  |  |  |  |  |
Residential |  | 142.0 |  |  | 172.0 |  |  | (30.0 | )
Commercial and industrial |  | 90.3 |  |  | 111.0 |  |  | (20.7 | )
Total retail |  | 232.3 |  |  | 283.0 |  |  | (50.7 | )
Transport |  | 259.2 |  |  | 228.7 |  |  | 30.5 |
Total sales in therms |  | 491.5 |  |  | 511.7 |  |  | (20.2 | )

|  | Three Months Ended March 31
|  | Degree Days
Weather * |  | 2020 |  | 2019 |  | B (W)
MERC |  |  |  |  |  |
Heating (3,988 Normal) |  | 3,745 |  |  | 4,382 |  |  | (14.5 | )%
MGU |  |  |  |  |  |  |
Heating (3,230 Normal) |  | 2,833 |  |  | 3,298 |  |  | (14.1 | )%

* | Normal heating degree days for MERC and MGU are based on a 20-year moving average and 15-year moving average, respectively, of monthly temperatures from various weather stations throughout their respective service territories.

Natural Gas Utility Margins
Natural gas utility margins decreased $8.5 million during the first quarter of 2020, compared to the same quarter last year. The decrease was primarily driven by lower sales volumes as a result of warmer weather in the first quarter of 2020 as compared to the same period in 2019.
Operating Income
Operating income at the other states segment decreased $4.1 million during the first quarter of 2020, compared to the same quarter last year. This decrease was driven by the $8.5 million decrease in margins discussed above, partially offset by a $4.4 million decrease in operating expenses (which include other operation and maintenance, depreciation and amortization, and property and revenue taxes). The decrease in operating expenses was driven by efforts to control costs, partially offset by an increase in depreciation and amortization.
Non-Utility Energy Infrastructure Segment Contribution to Operating Income

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019 |  | B (W)
Operating income |  | $ | 91.5 |  |  | $ | 92.7 |  |  | $ | (1.2 | )

03/31/2020 Form 10-Q | 44 | WEC Energy Group, Inc.

Table of Contents
Corporate and Other Segment Contribution to Operating Income

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019 |  | B (W)
Operating loss |  | $ | (4.2 | ) |  | $ | (3.9 | ) |  | $ | (0.3 | )

Electric Transmission Segment Operations

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019 |  | B (W)
Equity in earnings of transmission affiliates |  | $ | 39.8 |  |  | $ | 36.1 |  |  | $ | 3.7 |

Earnings from our ownership interests in transmission affiliates increased $3.7 million during the first quarter of 2020, compared with the same quarter in 2019, primarily due to continued capital investment by ATC.
Consolidated Other Income, Net

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019 |  | B (W)
Gains (losses) from investments held in rabbi trust |  | $ | (13.3 | ) |  | $ | 9.3 |  |  | $ | (22.6 | )
Non-service components of net periodic benefit costs |  | 12.6 |  |  | 8.3 |  |  | 4.3 |
AFUDC – Equity |  | 4.2 |  |  | 4.9 |  |  | (0.7 | )
Other, net |  | 2.1 |  |  | 8.4 |  |  | (6.3 | )
Other income, net |  | $ | 5.6 |  |  | $ | 30.9 |  |  | $ | (25.3 | )

Other income, net decreased $25.3 million during the first quarter of 2020, compared with the same quarter in 2019. The decrease was primarily driven by net losses on the investments held in the Integrys rabbi trust during the first quarter of 2020, compared with net gains during the same quarter in 2019. These investment gains and losses partially offset the changes in benefits costs related to deferred compensation, which are included in operating income. See Note 11, Fair Value Measurements, for more information on our investments held in the Integrys rabbi trust.
Consolidated Interest Expense

|  | Three Months Ended March 31
(in millions) |  | 2020 |  | 2019 |  | B (W)
Interest expense |  | $ | 129.4 |  |  | $ | 124.4 |  |  | $ | (5.0 | )

Interest expense increased $5.0 million during the first quarter of 2020, compared with the same quarter in 2019, primarily due to higher long-term debt balances. The increase in long-term debt balances is primarily related to continued capital investments.
Consolidated Income Tax Expense

|  | Three Months Ended March 31
|  | 2020 |  | 2019 |  | B (W)
Effective tax rate |  | 16.6 | % |  | 13.4 | % |  | (3.2 | )%

Our effective tax rate increased by 3.2% during the first quarter of 2020, compared with the same quarter in 2019. The increase was primarily due to the benefit from the flow through of tax repairs during the first quarter of 2019, in connection with the 2017 Wisconsin rate settlement. This increase in our effective tax rate was partially offset by the 2020 amortization of the unprotected excess deferred tax benefits from the Tax Legislation in connection with the Wisconsin rate orders approved by the PSCW, effective January 1, 2020. The impacts from both of these items were offset in operating income at the Wisconsin segment. See Note 10, Income Taxes, and Note 21, Regulatory Environment, for more information.
We expect our 2020 annual effective tax rate to be between 16% and 17%, which includes an estimated 4% effective tax rate benefit due to the amortization of unprotected excess deferred taxes in connection with the Wisconsin rate orders approved by the PSCW, effective January 1, 2020. Excluding this estimated effective tax rate benefit, the expected 2020 range would be between 20% and 21%.

03/31/2020 Form 10-Q | 45 | WEC Energy Group, Inc.

Table of Contents
LIQUIDITY AND CAPITAL RESOURCES
Cash Flows
The following table summarizes our cash flows during the three months ended March 31:

(in millions) |  | 2020 |  | 2019 |  | Change in 2020 Over 2019
Cash provided by (used in): |  |  |  |  |  |
Operating activities |  | $ | 690.5 |  |  | $ | 735.7 |  |  | $ | (45.2 | )
Investing activities |  | (463.0 | ) |  | (606.6 | ) |  | 143.6 |
Financing activities |  | (244.1 | ) |  | (186.1 | ) |  | (58.0 | )

Operating Activities
Net cash provided by operating activities decreased $45.2 million during the first quarter of 2020, compared with the same quarter in 2019, driven by:

• | A $52.2 million decrease in cash related to lower overall collections from customers, primarily due to lower sales volumes driven by warmer winter weather during the first quarter of 2020, compared with the same quarter in 2019.

• | A $24.2 million decrease in cash related to higher payments for environmental remediation from work completed on former manufactured gas plant sites during the first quarter of 2020, compared with the same quarter in 2019.

• | A $19.5 million decrease in cash due to an increase in payments for interest related to higher long-term debt balances during the first quarter of 2020, compared with the same quarter in 2019.

• | A $14.2 million decrease in cash due to higher collateral requirements during the first quarter of 2020, compared with the same quarter in 2019, driven by funding for both open natural gas contracts and settled natural gas contracts.

These decreases in net cash provided by operating activities were partially offset by:

• | A $56.2 million increase in cash from lower payments for other operation and maintenance expenses. During the first quarter of 2020, our payments were lower for benefits, electric and natural gas distribution expenses, and maintenance related to our power plants, compared with the same quarter in 2019.

• | An $11.4 million increase in cash related to $11.2 million of income taxes received during the first quarter of 2020, compared with $0.2 million of income taxes paid during the same quarter in 2019. This increase in cash was primarily due to a state income tax refund received in January 2020.

Investing Activities
Net cash used in investing activities decreased $143.6 million during the first quarter of 2020, compared with the same quarter in 2019, driven by:

• | The acquisition of an 80% ownership interest in Upstream in January 2019 for $268.2 million, which is net of cash and restricted cash acquired of $9.2 million. See Note 2, Acquisitions, for more information.

• | A $16.9 million increase in proceeds from the sale of investments held in the rabbi trust during the first quarter of 2020, compared with the same quarter of 2019.

This decrease in net cash used in investing activities was partially offset by:

• | A $137.3 million increase in cash paid for capital expenditures during the first quarter of 2020, compared with the same quarter in 2019, which is discussed in more detail below.

03/31/2020 Form 10-Q | 46 | WEC Energy Group, Inc.

Table of Contents

• | A $9.3 million decrease in proceeds from the sale of assets during the first quarter of 2020, compared with the same quarter in 2019.

Capital Expenditures
Capital expenditures by segment for the three months ended March 31 were as follows:

Reportable Segment (in millions) |  | 2020 |  | 2019 |  | Change in 2020 Over 2019
Wisconsin |  | $ | 303.7 |  |  | $ | 232.6 |  |  | $ | 71.1 |
Illinois |  | 146.9 |  |  | 101.4 |  |  | 45.5 |
Other states |  | 39.1 |  |  | 13.7 |  |  | 25.4 |
Non-utility energy infrastructure |  | 2.0 |  |  | 8.1 |  |  | (6.1 | )
Corporate and other |  | 4.4 |  |  | 3.0 |  |  | 1.4 |
Total capital expenditures |  | $ | 496.1 |  |  | $ | 358.8 |  |  | $ | 137.3 |

The increase in cash paid for capital expenditures at the Wisconsin segment during the first quarter of 2020, compared with the same quarter in 2019, was primarily driven by the implementation of our AMI program and upgrades to WE's electric distribution system during the first quarter of 2020. These increases in cash paid for capital expenditures were partially offset by a decrease in cash paid for capital expenditures related to construction of the new natural gas-fired generation facility in the Upper Peninsula of Michigan, as this facility became commercially operational on March 31, 2019, and an information technology project created to improve WE's and WG's billing, call center, and credit collection functions during the first quarter of 2019.
The increase in cash paid for capital expenditures at the Illinois segment during the first quarter of 2020, compared with the same quarter in 2019, was driven by an increase in facilities projects, upgrading of automated meter reading devices, dehydration system upgrades at the Manlove Gas Storage Field, and meter replacements during the first quarter of 2020.
The increase in cash paid for capital expenditures at the Other States segment during the first quarter of 2020, compared with the same quarter in 2019, was primarily driven by an increase in AMI expenditures during the first quarter of 2020.
See Capital Resources and Requirements – Capital Requirements – Significant Capital Projects for more information.
Financing Activities
Net cash used in financing activities increased $58.0 million during the first quarter of 2020, compared with the same quarter in 2019, driven by:

• | A $350.0 million decrease in cash due to the issuance of long-term debt during the first quarter of 2019. We did not issue any long-term debt during the first quarter of 2020.

• | A $48.7 million decrease in cash related to higher net repayments of commercial paper during the first quarter of 2020, compared with the same quarter in 2019.

• | A $16.6 million decrease in cash from stock options exercised during the first quarter of 2020, compared with the same quarter in 2019.

• | A $13.3 million decrease in cash due to higher dividends paid on our common stock during the first quarter of 2020, compared with the same quarter in 2019. In January 2020, our Board of Directors increased our quarterly dividend by $0.0425 per share (7.2%) effective with the March 2020 dividend payment.

These decreases in cash were partially offset by:

• | A $340.0 million increase in cash due to the issuance of a 364-day term loan during the first quarter of 2020, to enhance our liquidity position in response to the COVID-19 pandemic. See Factors Affecting Results, Liquidity, and Capital Resources – Potential Impacts of Coronavirus Disease – 2019, for additional information.

03/31/2020 Form 10-Q | 47 | WEC Energy Group, Inc.

Table of Contents

• | A $30.3 million increase in cash due to a decrease in the number and cost of shares of our common stock purchased during the first quarter of 2020, compared with the same quarter in 2019, to satisfy requirements of our stock-based compensation plans.

Significant Financing Activities
For more information on our financing activities, see Note 7, Short-Term Debt and Lines of Credit, and Note 8, Long-Term Debt.
Capital Resources and Requirements
Capital Resources
Liquidity
We anticipate meeting our capital requirements for our existing operations through internally generated funds and short-term borrowings, supplemented by the issuance of intermediate or long-term debt securities, depending on market conditions and other factors.
We currently have access to the capital markets and have been able to generate funds both internally and externally to meet our capital requirements. Our ability to attract the necessary financial capital at reasonable terms is critical to our overall strategic plan. We currently believe that we have adequate capacity to fund our operations for the foreseeable future through our existing borrowing arrangements, access to capital markets, and internally generated cash. See Factors Affecting Results, Liquidity, and Capital Resources – Potential Impacts of Coronavirus Disease – 2019, for additional information on the impacts of the COVID-19 pandemic.
WEC Energy Group, WE, WPS, WG, and PGL maintain bank back-up credit facilities, which provide liquidity support for each company's obligations with respect to commercial paper and for general corporate purposes. We review our bank back-up credit facility needs on an ongoing basis and expect to be able to maintain adequate credit facilities to support our operations. In March 2020, in order to enhance our liquidity position in response to the COVID-19 pandemic and the ensuing volatility in the commercial paper market, WEC Energy Group entered into a $340 million 364-day term loan, which was used to pay down commercial paper. See Note 7, Short-Term Debt and Lines of Credit, for more information about these credit agreements.
The following table shows our capitalization structure as of March 31, 2020, as well as an adjusted capitalization structure that we believe is consistent with how a majority of the rating agencies currently view our 2007 Junior Notes:

(in millions) |  | Actual |  | Adjusted
Common shareholders' equity |  | $ | 10,344.1 |  |  | $ | 10,594.1 |
Preferred stock of subsidiary |  | 30.4 |  |  | 30.4 |
Long-term debt (including current portion) |  | 11,889.0 |  |  | 11,639.0 |
Short-term debt |  | 827.2 |  |  | 827.2 |
Total capitalization |  | $ | 23,090.7 |  |  | $ | 23,090.7 |
Total debt |  | $ | 12,716.2 |  |  | $ | 12,466.2 |
Ratio of debt to total capitalization |  | 55.1 | % |  | 54.0 | %

Included in long-term debt on our balance sheet as of March 31, 2020, is $500.0 million principal amount of the 2007 Junior Notes. The adjusted presentation attributes $250.0 million of the 2007 Junior Notes to common shareholders' equity and $250.0 million to long-term debt.
The adjusted presentation of our consolidated capitalization structure is included as a complement to our capitalization structure presented in accordance with GAAP. Management evaluates and manages our capitalization structure, including our total debt to total capitalization ratio, using the GAAP calculation as adjusted to reflect the treatment of the 2007 Junior Notes by the majority of rating agencies. Therefore, we believe the non-GAAP adjusted presentation reflecting this treatment is useful and relevant to investors in understanding how management and the rating agencies evaluate our capitalization structure.

03/31/2020 Form 10-Q | 48 | WEC Energy Group, Inc.

Table of Contents
Working Capital
As of March 31, 2020, our current liabilities exceeded our current assets by $1.0 billion. We do not expect this to have any impact on our liquidity since we believe we have adequate back-up lines of credit in place for our ongoing operations. We also believe that we can access the capital markets to finance our construction programs and to refinance current maturities of long-term debt, if necessary.
Credit Rating Risk
We do not have any credit agreements that would require material changes in payment schedules or terminations as a result of a credit rating downgrade. However, we have certain agreements in the form of commodity contracts and employee benefit plans that could require collateral or a termination payment in the event of a credit rating change to below BBB- at S&P Global Ratings and/or Baa3 at Moody's Investors Service. We also have other commodity contracts that, in the event of a credit rating downgrade, could result in a reduction of our unsecured credit granted by counterparties.
In addition, access to capital markets at a reasonable cost is determined in large part by credit quality. Any credit ratings downgrade could impact our ability to access capital markets.
Subject to other factors affecting the credit markets as a whole, we believe our current ratings should provide a significant degree of flexibility in obtaining funds on competitive terms. However, these security ratings reflect the views of the rating agency only. An explanation of the significance of these ratings may be obtained from the rating agency. Such ratings are not a recommendation to buy, sell, or hold securities. Any rating can be revised upward or downward or withdrawn at any time by a rating agency.
If we are unable to successfully take actions to manage any impacts from the COVID-19 pandemic and/or any additional adverse impacts of the Tax Legislation as a result of additional interpretations, regulations, amendments or technical corrections, these potential impacts could result in credit rating agencies placing our or our subsidiaries’ credit ratings on negative outlook or additional downgrading of our or our subsidiaries' credit ratings. Any such actions by credit rating agencies may make it more difficult and costly for us and our subsidiaries to issue future debt securities and certain other types of financing and could increase borrowing costs under our and our subsidiaries’ credit facilities.
See Factors Affecting Results, Liquidity, and Capital Resources – Potential Impacts of Coronavirus Disease – 2019, for additional information.
Capital Requirements
Significant Capital Projects
We have several capital projects that will require significant capital expenditures over the next three years and beyond. All projected capital requirements are subject to periodic review and may vary significantly from estimates, depending on a number of factors. These factors include environmental requirements, regulatory restraints and requirements, impacts from the Tax Legislation, additional changes in tax laws and regulations, acquisition and development opportunities, market volatility, economic trends, and the COVID-19 pandemic. Our estimated capital expenditures and acquisitions for the next three years are as follows:

(in millions) |  | 2020 |  | 2021 |  | 2022
Wisconsin |  | $ | 1,482.0 |  |  | $ | 1,881.1 |  |  | $ | 1,630.5 |
Illinois |  | 779.0 |  |  | 619.4 |  |  | 586.7 |
Other states |  | 117.4 |  |  | 111.6 |  |  | 87.4 |
Non-utility energy infrastructure |  | 852.5 |  |  | 159.7 |  |  | 393.0 |
Corporate and other |  | 24.6 |  |  | 22.7 |  |  | 2.7 |
Total |  | $ | 3,255.5 |  |  | $ | 2,794.5 |  |  | $ | 2,700.3 |

WE, WPS, and WG continue to upgrade their electric and natural gas distribution systems to enhance reliability. These upgrades include the AMI program. AMI is an integrated system of smart meters, communication networks, and data management systems that enable two-way communication between utilities and customers. WPS is also continuing work on the System Modernization and Reliability Project. This project includes modernizing parts of its electric distribution system, including burying or upgrading lines. The project focuses on constructing facilities to improve the reliability of electric service WPS provides to its customers. WPS expects to invest approximately $100 million between 2020 and 2022 on this project.

03/31/2020 Form 10-Q | 49 | WEC Energy Group, Inc.

Table of Contents
As part of our commitment to invest in zero-carbon generation, we have received approval to invest in 300 MW of utility-scale solar within our Wisconsin segment. WPS has partnered with an unaffiliated utility to construct two solar projects in Wisconsin. Badger Hollow I is located in Iowa County, Wisconsin, and Two Creeks is located in Manitowoc County, Wisconsin. Once constructed, WPS will own 100 MW of the output of each project for a total of 200 MW. WPS's share of the cost of both projects is estimated to be $256 million. Construction began at Two Creeks and Badger Hollow I in August 2019 and October 2019, respectively. Commercial operation for Two Creeks and Badger Hollow I is targeted for December 2020 and April 2021, respectively. WE has partnered with an unaffiliated utility to acquire an ownership interest in a proposed solar project, Badger Hollow II, that will be located in Iowa County, Wisconsin. Once constructed, WE will own 100 MW of the output of this project. WE's share of the cost of this project is estimated to be $130 million. Solar generation technology has greatly improved, has become more cost-effective, and it complements our summer demand curve.
Subject to PSCW approval, WE plans to install approximately 46 miles of natural gas transmission main in southeastern Wisconsin. This project has been designated as the "Lakeshore Lateral Project." The primary purpose of this project is to increase the quantity and reliability of natural gas service, both on a peak day and annually, in southeastern Wisconsin. The cost of the project is estimated to be between $174-$180 million. Construction for the project is tentatively scheduled to begin during the fourth quarter of 2020, and the project is expected to be completed by the end of 2021.
WE and WG each plan to construct their own LNG facility. Subject to PSCW approval, each facility will provide approximately one billion cubic feet of natural gas supply to meet anticipated peak demand without requiring the construction of additional interstate pipeline capacity. These facilities are expected to reduce the likelihood of constraints on WE's and WG's natural gas systems during the highest demand days of winter. The total cost of both projects is estimated to be approximately $370 million, with approximately half being invested by each utility. Commercial operation for the LNG facilities is targeted for the end of 2023.
PGL is continuing work on the SMP, a project under which PGL is replacing approximately 2,000 miles of Chicago's aging natural gas pipeline infrastructure. PGL currently recovers these costs through a surcharge on customer bills pursuant to an ICC approved QIP rider, which is in effect through 2023. PGL's projected average annual investment through 2022 is between $280 million and $300 million.
The non-utility energy infrastructure line item in the table above includes WECI's planned investment in Thunderhead and Blooming Grove. See Note 2, Acquisitions, for more information on these wind projects.
We expect to provide total capital contributions to ATC (not included in the above table) of approximately $90 million from 2020 through 2022. We do not expect to make any contributions to ATC Holdco during that period.
See Factors Affecting Results, Liquidity, and Capital Resources – Potential Impacts of Coronavirus Disease – 2019, for additional information on the potential impacts to our capital projects as a result of the COVID-19 pandemic.
Common Stock Dividends
Our current quarterly dividend rate is $0.6325 per share, which equates to an annual dividend of $2.53 per share. For information related to our most recent common stock dividend declared, see Note 6, Common Equity.
Off-Balance Sheet Arrangements
We are a party to various financial instruments with off-balance sheet risk as a part of our normal course of business, including financial guarantees and letters of credit that support construction projects, commodity contracts, and other payment obligations. We believe that these agreements do not have, and are not reasonably likely to have, a current or future material effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures, or capital resources. For additional information, see Note 7, Short-Term Debt and Lines of Credit, Note 13, Guarantees, and Note 18, Variable Interest Entities.
Contractual Obligations
For information about our commitments, see Contractual Obligations in Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations – Capital Resources and Requirements in our 2019 Annual Report on Form 10-K. There were no material changes to our commitments outside the ordinary course of business during the three months ended March 31, 2020.

03/31/2020 Form 10-Q | 50 | WEC Energy Group, Inc.

Table of Contents
FACTORS AFFECTING RESULTS, LIQUIDITY, AND CAPITAL RESOURCES
The following is a discussion of certain factors that may affect our results of operations, liquidity, and capital resources. The following discussion should be read together with the information in Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations – Factors Affecting Results, Liquidity, and Capital Resources in our 2019 Annual Report on Form 10-K, which provides a more complete discussion of factors affecting us, including market risks and other significant risks, competitive markets, environmental matters, critical accounting policies and estimates, and other matters.
Potential Impacts of Coronavirus Disease – 2019
The global outbreak of COVID-19 was declared a pandemic by the WHO and the CDC and has spread globally, including throughout the United States. There is considerable uncertainty regarding the extent to which COVID-19 will spread and the extent and duration of measures to try to contain the virus, such as travel bans and restrictions, quarantines, shelter-in-place orders (including those in effect in our service territories), and business shutdowns. Such measures have significantly disrupted economic activity in our service territories and have caused disruptions and volatility in the capital markets.
Liquidity and Financial Markets
Volatility and uncertainty in the financial markets and global economy have impacted us in a number of ways. Upon the initial enactment of certain COVID-19 related shelter-in-place orders in early to mid-March 2020, commercial paper markets became more expensive and related terms became less flexible. In response to these signs of market instability, the Federal Reserve implemented certain measures, including a reduction in its benchmark Federal Funds rate and the establishment of various programs to restore liquidity and stability into the short-term funding markets. These measures have had a mitigating effect on commercial paper rates and availability. In addition, the initial disruption in the long-term debt markets as a result of the COVID-19 pandemic has subsided.
In response to the factors discussed above, we have taken several steps to enhance our liquidity position. In March 2020, we entered into a $340 million, 364-day term loan, which was used to pay down commercial paper. Also, while not directly related to COVID-19, in April 2020, MGU and MERC issued a total of $110 million of senior notes in private placement transactions. Our overall liquidity position remains strong. As of March 31, 2020, we had available credit facilities in the amount of $2.3 billion, providing sufficient backing for our commercial paper program.
Pensions and Other Benefits
Our pension and OPEB plans were well funded at December 31, 2019, with total plan assets exceeding total benefit obligations by $204.3 million. The recent volatility in global capital markets resulted in an approximate $397 million decrease in the value of long-term investments held in our pension and OPEB plan trusts during the quarter ended March 31, 2020. This decline in the value of the plan assets could result in higher pension and OPEB expense and additional future funding requirements.
We could also see earnings volatility associated with certain other benefit plans that we maintain, primarily related to performance units that we grant to certain employees, and our deferred compensation plans. Certain of the liabilities associated with the deferred compensation plans are indexed to mutual funds and our common stock, and the liabilities associated with outstanding performance units are indexed to our common stock. These liabilities are marked to fair value through earnings each period, with earnings increasing as market prices decrease. Earnings volatility associated with our deferred compensation plans is partially mitigated by investments we hold in a rabbi trust.
Allowance for Credit Losses
We evaluate the collectability of our accounts receivable and unbilled revenue balances considering a combination of factors. Risks identified that we do not believe are reflected in historical reserve percentages are assessed on a quarterly basis to determine whether further adjustments are required. The economic disruption caused by the COVID-19 pandemic, including rising unemployment rates and the closing of non-essential businesses, could cause a higher percentage of accounts receivable to become uncollectible. An increase in credit losses could negatively impact our results of operations and could result in higher working capital requirements. In addition, see Note 21, Regulatory Environment, for information on certain regulatory actions that are being taken for the purpose of ensuring that essential utility services are available to our customers during the COVID-19 pandemic.

03/31/2020 Form 10-Q | 51 | WEC Energy Group, Inc.

Table of Contents
Our exposure to credit losses for certain regulated utility customers is mitigated by regulatory mechanisms we have in place.
Specifically, rates related to all of the customers in our Illinois segment, as well as the residential rates of WE, WG, and WPS in our Wisconsin segment include riders or other mechanisms for cost recovery or refund of uncollectible expense based on the difference between the actual provision for credit losses and the amounts recovered in rates. In addition, in a March 24, 2020 order, the PSCW authorized the deferral of credit losses at WE, WG, and WPS for commercial and industrial customers, to the extent these losses exceed the amount included in rates, as a result of the COVID-19 pandemic and the actions WE, WG, and WPS have been required to take to ensure essential utility services are available to customers during the public health emergency. Furthermore, pursuant to an April 15, 2020 order addressing certain impacts of the COVID-19 pandemic, the MPSC authorized all Michigan utilities to defer, for potential future recovery, uncollectible expense incurred on or after March 24, 2020 that exceeds the amounts being recovered in rates. See Note 21, Regulatory Environment, for more information.
Loss of Business
We are beginning to see a decrease in the consumption of electricity and natural gas by some of our commercial and industrial customers as they are experiencing lower demand for their products and services, or have been prohibited from operating, as a result of the public health emergencies that have been declared across our service territories related to the COVID-19 pandemic. The extent to which this decrease in consumption will impact our results of operations and liquidity is dependent upon the duration of the COVID-19 public health emergency and the ability of our customers to resume normal operations.
Based on market conditions and disruptions in manufacturing and steel production due to the impact of COVID-19, our largest customer, the Tilden mine, temporarily idled production at the end of April. Tilden currently plans to restart the mine in July 2020. UMERC’s natural gas-fired generation facilities began commercial operation effective March 31, 2019, and the total cost was approximately $255 million including AFUDC. Through an agreement between UMERC and Tilden, Tilden is responsible for 50% of the cost of these generation facilities and all of the operation and maintenance expense incurred at these facilities, whether or not the mine is operating. Because Tilden remains responsible for these costs, we do not believe its temporary shut-down will have a significant impact on our results of operations.
Supply Chain and Capital Projects
We have not yet experienced a significant disruption in our supply chain as a result of the COVID-19 pandemic. However, if the outbreak continues for an extended period of time and significantly impacts our key suppliers’ ability to manufacture or deliver critical equipment and supplies or provide services, we could experience delays in our ability to perform certain maintenance and capital project activities.
The timing of our utility-scale solar projects under construction may also be impacted as a result of the COVID-19 pandemic. Regarding our Badger Hollow I solar project, the parties have tentatively agreed to delay the expected commercial operation date from December 2020 to April 2021 so that near term staffing increases can be minimized in light of state mandated COVID-19 orders. There is currently no change to the expected in service date of the Two Creeks solar project. We are not currently aware of any other major delays or changes related to our capital plan as a result of the COVID-19 pandemic, although we are continuing to monitor potential impacts on an ongoing basis.
Employee Safety
The health and safety of our employees during the COVID-19 pandemic is paramount and enables us to continue to provide critical services to our customers.
We are following CDC guidelines and have taken enhanced precautions with regard to employee hygiene and facility cleanliness, imposed travel limitations on our employees, provided additional employee benefits, and implemented remote work policies where appropriate. We have activated an incident management team and updated our pandemic continuity plan, which includes identifying critical work groups and ensuring safe harbor plans are in place. We have minimized the unnecessary risk of exposure to COVID-19 by implementing self-quarantine measures and have adopted additional precautionary measures for our critical work groups.
Additional protocols are being implemented for field employees who must travel to customer premises in order to protect these employees, our customers, and the public. We have modified or delayed our services to ensure compliance with social distancing recommendations until contact between our employees and customers is deemed safe.

03/31/2020 Form 10-Q | 52 | WEC Energy Group, Inc.

Table of Contents
All of these safety measures have caused us to incur additional costs, and depending upon the duration of the COVID-19 pandemic, could have a material impact on our results of operations and liquidity.
Regulatory Environment
Each of the states in which our regulated utilities operate has declared a public health emergency and has issued shelter-in-place orders in response to the COVID-19 pandemic. Our utilities have taken actions to ensure that essential utility services are available to customers in their service territories during the declared public health emergencies. We have received written orders from the PSCW, the ICC, and the MPSC regarding certain measures to be taken in Wisconsin, Illinois, and Michigan, respectively. See Note 21, Regulatory Environment, for more information on these orders and the potential recovery of expenditures incurred as a result of the measures being taken.
MERC has also voluntarily taken actions in its service territory to ensure that customers will continue to receive utility services. These actions include, but are not limited to, temporarily suspending disconnections and late payment fees for certain customer classes during the COVID-19 public health emergency.
Market Risks and Other Significant Risks
We are exposed to market and other significant risks as a result of the nature of our businesses and the environments in which those businesses operate. These risks include, but are not limited to, the regulatory recovery risk described below. See Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations – Factors Affecting Results, Liquidity, and Capital Resources – Market Risks and Other Significant Risks in our 2019 Annual Report on Form 10-K for a discussion of other significant risks applicable to us.
Regulatory Recovery
Our utilities account for their regulated operations in accordance with accounting guidance under the Regulated Operations Topic of the FASB Accounting Standards Codification. Regulated entities are allowed to defer certain costs that would otherwise be charged to expense if the regulated entity believes the recovery of those costs is probable. We record regulatory assets pursuant to specific orders or by a generic order issued by our regulators. Recovery of the deferred costs in future rates is subject to the review and approval by those regulators. We assume the risks and benefits of ultimate recovery of these items in future rates. If the recovery of the deferred costs, including those referenced below, is not approved by our regulators, the costs would be charged to income in the current period. Regulators can impose liabilities on a prospective basis for amounts previously collected from customers and for amounts that are expected to be refunded to customers. We record these items as regulatory liabilities.
We expect to request or have requested recovery of the costs related to the following projects discussed in recent or pending rate proceedings, orders, and investigations involving our utilities:

• | Prior to its acquisition by us, Integrys initiated an information technology project with the goal of improving the customer experience at its subsidiaries. Specifically, the project is expected to provide functional and technological benefits to the billing, call center, and credit collection functions. As of March 31, 2020, we had not received any significant disallowances of the costs incurred for this project. WPS and MERC received approval to recover these costs in their most recent rate orders; however, the costs incurred for this project in our other regulatory jurisdictions are still subject to approval by the applicable regulators.

• | In January 2014, the ICC approved PGL's use of the QIP rider as a recovery mechanism for costs incurred related to investments in QIP. This rider is subject to an annual reconciliation whereby costs are reviewed for accuracy and prudency. In March 2020, PGL filed its 2019 reconciliation with the ICC, which, along with the 2018, 2017, and 2016 reconciliations, are still pending. As of March 31, 2020, there can be no assurance that all costs incurred under the QIP rider during the open reconciliation years will be deemed recoverable by the ICC.

See Note 21, Regulatory Environment, for more information regarding recent and pending rate proceedings, orders, and investigations involving our utilities.

03/31/2020 Form 10-Q | 53 | WEC Energy Group, Inc.

Table of Contents
Environmental Matters
See Note 19, Commitments and Contingencies, for a discussion of certain environmental matters affecting us, including rules and regulations relating to air quality, water quality, land quality, and climate change.
Other Matters
Tax Cuts and Jobs Act of 2017
In December 2017, the Tax Legislation was signed into law. In 2018 and 2019, the PSCW and the MPSC issued written orders regarding how to refund certain tax savings from the Tax Legislation to our ratepayers in Wisconsin and Michigan, respectively. The various remaining impacts of the Tax Legislation on our Wisconsin operations were addressed in the rate orders issued by the PSCW in December 2019. See Note 21, Regulatory Environment, for more information on these rate orders. The MPSC also approved a settlement in May 2018 with Tilden that addressed all base rate impacts of the Tax Legislation. In addition, the ICC approved the Variable Income Tax Adjustment Rider in Illinois during April 2018, and, in Minnesota, the Minnesota Public Utilities Commission included the various impacts of the Tax Legislation in MERC's final 2018 rate order.
In July 2019, the FERC approved WPS's revised formula rate tariff, which incorporated the impacts of the Tax Legislation. We are also working with the FERC to modify WE's formula rate tariff for the impacts of the Tax Legislation, and we expect to receive FERC approval for WE's modified tariff in 2020.
American Transmission Company Allowed Return on Equity Complaints
On November 21, 2019, the FERC issued an order (November 2019 Order) related to the methodology used to calculate the base ROE for all MISO transmission owners, including ATC. Based on this order, the FERC expanded its base ROE methodology to include the capital-asset pricing model in addition to the discounted cash flow model to better reflect how investors make their investment decisions. The FERC's modified methodology will reduce the base ROE that ATC is allowed to collect on a going-forward basis, as discussed below. Various parties have requested a rehearing by the FERC of the November 2019 Order in its entirety.
First Return on Equity Complaint
In November 2013, a group of MISO industrial customer organizations filed a complaint with the FERC requesting to reduce the base ROE used by MISO transmission owners, including ATC, from 12.2% to 9.15%. In September 2016, the FERC issued an order requiring MISO transmission owners to collect a reduced base ROE of 10.32%, as well as the 0.5% incentive adder approved by the FERC in January 2015 for MISO transmission owners. The FERC then issued the November 2019 Order after directing MISO transmission owners and other stakeholders to provide briefs and comments on a proposed change to the methodology for calculating base ROE. The November 2019 Order further reduced the base ROE for all MISO transmission owners, including ATC, to 9.88%, effective as of September 28, 2016 and prospectively. The November 2019 Order also continued to allow the collection of the 0.5% ROE incentive adder, which only applies to revenues collected after January 6, 2015. In addition, ATC is required to provide refunds, with interest, for the 15-month refund period from November 12, 2013 through February 11, 2015 and for the period from September 28, 2016 through November 21, 2019. As a result, ATC will provide WE and WPS with refunds related to the transmission costs they paid during the two refund periods, and these refunds will be applied to WE's and WPS's PSCW-approved escrow accounting for transmission expense.
Second Return on Equity Complaint
In February 2015, a second complaint was filed with the FERC requesting a reduction in the base ROE used by MISO transmission owners, including ATC, to 8.67%, with a refund effective date retroactive to February 12, 2015. The FERC also addressed this second complaint in the November 2019 Order. Similar to the first complaint, the November 2019 Order stated that the base ROE of 9.88% and the 0.5% incentive adder were reasonable for the period covered by the second complaint, February 12, 2015 through May 10, 2016. However, in its order, the FERC relied on certain provisions of the Federal Power Act to dismiss the second complaint and to determine that refunds were not allowed for this period. Refunds could still be required, however, for the second complaint period depending on the outcome of numerous rehearing requests filed with the FERC. Therefore, our financials continue to reflect a liability of $41.9 million resulting in reduced equity earnings from ATC. This liability reflects a 10.38% ROE for the second complaint period. If it is ultimately determined that a refund is required for the second complaint period, we would not expect any such refund

03/31/2020 Form 10-Q | 54 | WEC Energy Group, Inc.

Table of Contents
to have a material impact on our financial statements or results of operations in the future. In addition, WE and WPS would be entitled to receive a portion of the refund from ATC for the benefit of their customers.
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
There have been no material changes related to market risk from the disclosures presented in our 2019 Annual Report on Form 10-K. In addition to the Form 10-K disclosures, see Management's Discussion and Analysis of Financial Condition and Results of Operations – Factors Affecting Results, Liquidity, and Capital Resources – Potential Impacts of Coronavirus Disease – 2019 and Market Risks and Other Significant Risks in Item 2 of Part I of this report, as well as Note 11, Fair Value Measurements, Note 12, Derivative Instruments, and Note 13, Guarantees, in this report for information concerning our market risk exposures.
ITEM 4. CONTROLS AND PROCEDURES
Disclosure Controls and Procedures
Our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this report. Based upon such evaluation, our principal executive officer and principal financial officer have concluded that, as of the end of such period, our disclosure controls and procedures are effective: (i) in recording, processing, summarizing, and reporting, on a timely basis, information required to be disclosed by us in the reports that we file or submit under the Exchange Act; and (ii) to ensure that information required to be disclosed in the reports that we file or submit under the Exchange Act is accumulated and communicated to our management, including our principal executive officer and principal financial officer, to allow timely decisions regarding required disclosure.
Changes in Internal Control Over Financial Reporting
There were no changes in our internal control over financial reporting (as such term is defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) during the first quarter of 2020 that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

03/31/2020 Form 10-Q | 55 | WEC Energy Group, Inc.

Table of Contents
PART II. OTHER INFORMATION
ITEM 1. LEGAL PROCEEDINGS
The following should be read in conjunction with Item 3. Legal Proceedings in Part I of our 2019 Annual Report on Form 10-K. See Note 19, Commitments and Contingencies, and Note 21, Regulatory Environment, in this report for additional information on material legal proceedings and matters related to us and our subsidiaries.
In addition to those legal proceedings discussed in Note 19, Commitments and Contingencies, Note 21, Regulatory Environment, and below, we are currently, and from time to time, subject to claims and suits arising in the ordinary course of business. Although the results of these additional legal proceedings cannot be predicted with certainty, management believes, after consultation with legal counsel, that the ultimate resolution of these proceedings will not have a material effect on our financial statements.
Environmental Matters
Manlove Field Matter
In September 2017, the Illinois Department of Natural Resources, Office of Oil and Gas Resource Management, issued a VN to PGL related to a leak of natural gas from a well located at the PGL Manlove Gas Storage Field in December 2016. PGL quickly shut down and permanently plugged the well to contain the leak after it was discovered. The leak resulted in the migration of natural gas from the well to the Mahomet Aquifer located in central Illinois and impacted residential freshwater wells. PGL has been working with residents potentially impacted by the natural gas leak, and the Illinois state agencies to investigate and remediate the impacts of the natural gas leak to the Mahomet Aquifer. In October 2017, the Illinois AG filed a complaint against PGL alleging certain violations of the Illinois Environmental Protection Act and the Oil and Gas Act. PGL entered into an Agreed Interim Order with the State of Illinois in October 2017 and a First Amended Agreed Interim Order in September 2019 whereby PGL agreed, among other things, to continue actions it was already undertaking proactively, including the submittal of a GMZ application, which PGL submitted to the IEPA in August 2019. The GMZ application is being reviewed by the IEPA staff. A supplemental filing was sent to the IEPA in December 2019.
In addition, in December 2017, the IEPA issued a VN to PGL alleging the same violations as the AG. Lastly, in January 2018, the IEPA issued a VN alleging certain violations of Illinois air emission rules arising from the construction and operation of flaring equipment at the leak site. Both of the IEPA VN matters have been referred to the AG for enforcement.
In the complaint, as is customary in these types of actions, the AG cited to the statutory penalties allowed by law. Ultimately, the pursuit of any civil penalties is at the AG’s discretion. In the event the AG wishes to consider such penalties, we believe that PGL's high level of cooperation and quick action to remedy the situation and to work with the potentially impacted homeowners would be taken into account. At this time, we believe that civil penalties, if any, will not have a material impact on our financial statements.
ITEM 1A. RISK FACTORS
The following risk factor is added to those disclosed in Item 1A. Risk Factors in Part I of our 2019 Annual Report on Form 10-K.
The recent COVID-19 outbreak could adversely affect our business functions, financial condition, liquidity, and results of operations.
The global outbreak of COVID-19 was declared a pandemic by the WHO and the CDC and has spread globally, including throughout the United States. There is considerable uncertainty regarding the extent to which COVID-19 will spread and the extent and duration of measures to try to contain the virus, such as travel bans and restrictions, quarantines, shelter-in-place orders (including those in effect in our service territories), and business shutdowns.
Such measures have significantly disrupted economic activity in our service territories and have caused disruptions and volatility in the capital markets. In addition, our utility subsidiaries have temporarily suspended disconnections for non-payment by certain customer classes. The effects of the continued outbreak of COVID-19 and related government responses could include extended disruptions to supply chains and capital markets, reduced labor availability and productivity, and a prolonged reduction in economic activity. These effects could have a variety of adverse impacts on us and our subsidiaries, including reduced demand for energy, particularly from commercial and industrial customers; impairment of goodwill or long-lived assets; decreased revenue due to the

03/31/2020 Form 10-Q | 56 | WEC Energy Group, Inc.

Table of Contents
inability to collect late fees; increased bad debt expense; impairment of our and our subsidiaries' ability to develop, construct, and operate facilities; and impaired ability to successfully access funds from credit and capital markets.
Effects of COVID-19 on the U.S. capital markets may significantly impact us and our subsidiaries. For example, the costs related to our pension and other post-retirement benefit plans are based in part on the value of the plans’ assets. Adverse investment performance for these assets or the failure to maintain sustained growth in pension investments over time could increase our plan costs and funding requirements. Similarly, we rely on access to the capital markets to fund some of our operations and capital requirements. To the extent that access to the capital markets is adversely affected by COVID-19, we may need to consider alternative sources of funding for our operations and for working capital, which may increase our cost of, as well as adversely impact our access to, capital.
We have taken precautions with regard to employee and facility hygiene, imposed travel limitations on our employees, and implemented remote work policies where appropriate. Additional protocols are being implemented for required work in the field and within customer premises to protect our employees, customers, and the public.
Despite our efforts to manage the impacts of the COVID-19 pandemic, the extent to which COVID-19 may affect us depends on factors beyond our knowledge or control. Therefore, we are currently unable to determine what impact the COVID-19 pandemic may have on our business plans and operations, liquidity, financial condition, and results of operations, but will continue to monitor COVID-19 developments and modify our plans as conditions change.
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
The following table sets forth information regarding the purchases of our equity securities made by or on behalf of us or any affiliated purchaser (as defined in Exchange Act Rule 10b-18) during the three months ended March 31, 2020:
Issuer Purchases of Equity Securities

2020 |  | Total Number of Shares Purchased |  | Average Price Paid per Share |  | Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs |  | Maximum Approximate Dollar Value of Shares that May Yet Be Purchased Under the Plans or Programs
January 1 – January 31 |  | 29,394 |  |  | $ | 91.43 |  |  | — |  |  | $ | — |
February 1 – February 29 |  | — |  |  | — |  |  | — |  |  | — |
March 1 – March 31 |  | — |  |  | — |  |  | — |  |  | — |
Total * |  | 29,394 |  |  | $ | 91.43 |  |  | — |  |  |

* | All shares were surrendered by employees to satisfy tax withholding obligations upon vesting of restricted stock.

03/31/2020 Form 10-Q | 57 | WEC Energy Group, Inc.

Table of Contents
ITEM 6. EXHIBITS

Number |  | Exhibit
3 |  | Articles of Incorporation and By-laws
|  | 3.1 | Bylaws of WEC Energy Group, Inc., as amended effective April 16, 2020. (Exhibit 3.1 to WEC Energy Group's 4/20/20 Form 8-K.)
10 |  | Material Contracts
|  | 10.1 | Letter Agreement by and between WEC Energy Group, Inc. and Scott J. Lauber, dated March 31, 2020. (Exhibit 10.1 to WEC Energy Group's 04/02/2020 Form 8-K.)
|  | 10.2 | Letter Agreement by and between WEC Energy Group, Inc. and Xia Liu, dated March 24, 2020. (Exhibit 10.2 to WEC Energy Group's 04/02/2020 Form 8-K.)
31 |  | Rule 13a-14(a) / 15d-14(a) Certifications
|  | 31.1 | Certification Pursuant to Rule 13a-14(a) or 15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
|  | 31.2 | Certification Pursuant to Rule 13a-14(a) or 15d-14(a), as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32 |  | Section 1350 Certifications
|  | 32.1 | Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
|  | 32.2 | Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101 |  | Interactive Data Files
|  | 101.INS | Inline XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
|  | 101.SCH | Inline XBRL Taxonomy Extension Schema
|  | 101.CAL | Inline XBRL Taxonomy Extension Calculation Linkbase
|  | 101.DEF | Inline XBRL Taxonomy Extension Definition Linkbase
|  | 101.LAB | Inline XBRL Taxonomy Extension Label Linkbase
|  | 101.PRE | Inline XBRL Taxonomy Extension Presentation Linkbase
104 |  | Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

03/31/2020 Form 10-Q | 58 | WEC Energy Group, Inc.

Table of Contents
SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

|  | WEC ENERGY GROUP, INC.
|  | (Registrant)
|  | /s/ WILLIAM J. GUC
Date: | May 7, 2020 | William J. Guc
|  | Vice President and Controller
|  | (Duly Authorized Officer and Chief Accounting Officer)

03/31/2020 Form 10-Q | 59 | WEC Energy Group, Inc.