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  <xs:element id="aep_ContestedJointAgreementBaseRateAnnualRevenueIncrease" abstract="false" name="ContestedJointAgreementBaseRateAnnualRevenueIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_A2023MichiganBaseRateCaseMember" abstract="true" name="A2023MichiganBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_UnbilledReceivablesRelatedToSecuritizationSaleOfAccountsReceivable" abstract="false" name="UnbilledReceivablesRelatedToSecuritizationSaleOfAccountsReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_CorporateAlternativeMinimumTaxMember" abstract="true" name="CorporateAlternativeMinimumTaxMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PlantRetirementCostsUnrecoveredPlantMember" abstract="true" name="PlantRetirementCostsUnrecoveredPlantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OCCStaffAndIntervenorRecommendedPlantInvestments" abstract="false" name="OCCStaffAndIntervenorRecommendedPlantInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_DerivativeRiskManagementContractsGainLossRecognizedAsRegulatoryAssetLiability" abstract="false" name="DerivativeRiskManagementContractsGainLossRecognizedAsRegulatoryAssetLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_COVID19VirginiaMember" abstract="true" name="COVID19VirginiaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaverickMember" abstract="true" name="MaverickMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AmountExceedingMaximumBorrowingsFromMoneyPool" abstract="false" name="AmountExceedingMaximumBorrowingsFromMoneyPool" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SettlementAgreementAnnualIncreaseStepTwo" abstract="false" name="SettlementAgreementAnnualIncreaseStepTwo" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_InterimWACC" abstract="false" name="InterimWACC" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_VariableInterestCarryingAmountAssetsAbstract" abstract="true" name="VariableInterestCarryingAmountAssetsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_IntervenorRecommendedOppositionToPurchasedPowerRecovery" abstract="false" name="IntervenorRecommendedOppositionToPurchasedPowerRecovery" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_DisallowedRockportPurchasedPowerCosts" abstract="false" name="DisallowedRockportPurchasedPowerCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OtherLongTermDebtThirteenMember" abstract="true" name="OtherLongTermDebtThirteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ProceedsForSecuritzationBonds" abstract="false" name="ProceedsForSecuritzationBonds" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OtherLongTermDebtFourMember" abstract="true" name="OtherLongTermDebtFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RequestedNetAnnualIncrease" abstract="false" name="RequestedNetAnnualIncrease" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AnnualMitchellBaseRateSurcharge" abstract="false" name="AnnualMitchellBaseRateSurcharge" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RequestedSecuritizationBondsUnderRecoveredPurchasedPowerRiderCosts" abstract="false" name="RequestedSecuritizationBondsUnderRecoveredPurchasedPowerRiderCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_NaturalGasContractMember" abstract="true" name="NaturalGasContractMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RequestedEquityCapitalStructure" abstract="false" name="RequestedEquityCapitalStructure" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_RecommendedAnnualBaseRateIncrease" abstract="false" name="RecommendedAnnualBaseRateIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ImpairmentChargeDisallowedPlantInvestments" abstract="false" name="ImpairmentChargeDisallowedPlantInvestments" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_StaffAndIntervenorRecommendedStormCostsRegulatoryAsset" abstract="false" name="StaffAndIntervenorRecommendedStormCostsRegulatoryAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_FutureMinimumLeasePaymentsforSaleandLeasebackTableTextBlock" abstract="false" name="FutureMinimumLeasePaymentsforSaleandLeasebackTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_EmployeeBenefitsAndPensionAssets" abstract="false" name="EmployeeBenefitsAndPensionAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_GenerationMarketingMember" abstract="true" name="GenerationMarketingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_HeatingOilAndGasolineContractMember" abstract="true" name="HeatingOilAndGasolineContractMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DilutiveSecurities1" abstract="false" name="DilutiveSecurities1" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="aep_AmountOfIncreaseRelatedToStormCatastropheReserve" abstract="false" name="AmountOfIncreaseRelatedToStormCatastropheReserve" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_March2027Member" abstract="true" name="March2027Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_CookPlantStudyCostsMember" abstract="true" name="CookPlantStudyCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CCRRuleRevisionMember" abstract="true" name="CCRRuleRevisionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_OtherRetailMember" abstract="true" name="OtherRetailMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NotesPayableOtherPayableNineMember" abstract="true" name="NotesPayableOtherPayableNineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OCCStaffAndIntervenorRecommendedROERange" abstract="false" name="OCCStaffAndIntervenorRecommendedROERange" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_AEPOnSitePartnersNBV" abstract="false" name="AEPOnSitePartnersNBV" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AverageInterestRatesForFundsBorrowedFromAndLoanedToUtilityMoneyPoolTextBlock" abstract="false" name="AverageInterestRatesForFundsBorrowedFromAndLoanedToUtilityMoneyPoolTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
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  <xs:element id="aep_MaterialsandSuppliesRelatedtoRetiredPlantsMember" abstract="true" name="MaterialsandSuppliesRelatedtoRetiredPlantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_MaximumInterestRateforFundsBorrowed" abstract="false" name="MaximumInterestRateforFundsBorrowed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_StormExpensesToBeRequestedInSeparateFiling" abstract="false" name="StormExpensesToBeRequestedInSeparateFiling" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_ImpairmentChargeWelshPlantUnit2" abstract="false" name="ImpairmentChargeWelshPlantUnit2" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_ReclassificationsToAccumulatedOtherComprehensiveIncomeMember" abstract="true" name="ReclassificationsToAccumulatedOtherComprehensiveIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_After5YearsMember" abstract="true" name="After5YearsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_FERCMatterAxis" abstract="true" name="FERCMatterAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
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  <xs:element id="aep_CreditDowngradeTriggerExposure" abstract="false" name="CreditDowngradeTriggerExposure" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_WholesaleGenerationMember" abstract="true" name="WholesaleGenerationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CorporateUnitOwnershipShareOfAnEquityUnit" abstract="false" name="CorporateUnitOwnershipShareOfAnEquityUnit" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_NorthCentralWindEnergyFacilitiesMember" abstract="true" name="NorthCentralWindEnergyFacilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SeniorUnsecuredNotesEightMember" abstract="true" name="SeniorUnsecuredNotesEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AmountOfApprovedIncreaseRelatedToVegetationManagement" abstract="false" name="AmountOfApprovedIncreaseRelatedToVegetationManagement" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_AlternativeandOtherMember" abstract="true" name="AlternativeandOtherMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_KentuckyPowerCoMember" abstract="true" name="KentuckyPowerCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EquityUnitsAnnualDistributionRate" abstract="false" name="EquityUnitsAnnualDistributionRate" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_CumulativeFairValueHedgingAdjustmentintheCarryingAmountoftheHedgedAssetLiability" abstract="false" name="CumulativeFairValueHedgingAdjustmentintheCarryingAmountoftheHedgedAssetLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ContractedRenewablesGWs" abstract="false" name="ContractedRenewablesGWs" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:energyItemType"/>
  <xs:element id="aep_RequestedAnnualBaseRateIncrease" abstract="false" name="RequestedAnnualBaseRateIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RequestedPurchasedPowerCostsNotRecoverableThroughFACRecovery" abstract="false" name="RequestedPurchasedPowerCostsNotRecoverableThroughFACRecovery" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaintenanceExpenseMember" abstract="true" name="MaintenanceExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_RateMatters" abstract="false" name="RateMatters" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PollutionControlBondSixMember" abstract="true" name="PollutionControlBondSixMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NetOfAffiliatedProvisionsForRefundAxis" abstract="true" name="NetOfAffiliatedProvisionsForRefundAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_CostOfPurchasedPowerFromAffiliate" abstract="false" name="CostOfPurchasedPowerFromAffiliate" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_MinimumInterestRateForFundsBorrowed" abstract="false" name="MinimumInterestRateForFundsBorrowed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_ALJRecommendedDisallowance" abstract="false" name="ALJRecommendedDisallowance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SettlementAgreementAdjustedEquityCapitalStructure" abstract="false" name="SettlementAgreementAdjustedEquityCapitalStructure" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="aep_StandAloneTreatmentOfNOLCsAnnualRevenueIncrease" abstract="false" name="StandAloneTreatmentOfNOLCsAnnualRevenueIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RequestedAnnualBaseRateIncreaseVegetationManagementPortion" abstract="false" name="RequestedAnnualBaseRateIncreaseVegetationManagementPortion" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_DamagesRepresentingLostMiningFeesForSabine" abstract="false" name="DamagesRepresentingLostMiningFeesForSabine" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RiskManagementCommodityContractsMember" abstract="true" name="RiskManagementCommodityContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ProvisionForRefund" abstract="false" name="ProvisionForRefund" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SecuritizationBondsTwoMember" abstract="true" name="SecuritizationBondsTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AEPTexasInc.Member" abstract="true" name="AEPTexasInc.Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ResidentialMember" abstract="true" name="ResidentialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PerUnitConversionforEquityUnits" abstract="false" name="PerUnitConversionforEquityUnits" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_EquityUnitsIssued" abstract="false" name="EquityUnitsIssued" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="aep_UpdatedRecommendedDisallowancePurchasedPowerOVECICPA" abstract="false" name="UpdatedRecommendedDisallowancePurchasedPowerOVECICPA" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_MezzanineEquity" abstract="false" name="MezzanineEquity" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_RequestedDeferredStormCosts" abstract="false" name="RequestedDeferredStormCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_TotalLongTermDebtOutstandingDomain" abstract="true" name="TotalLongTermDebtOutstandingDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AlternativeMember" abstract="true" name="AlternativeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EquityMethodOwnershipDomain" abstract="true" name="EquityMethodOwnershipDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NuclearFuelAndDecommissioningTrustsAbstract" abstract="true" name="NuclearFuelAndDecommissioningTrustsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_AEPTexasTransitionFundingandRestorationFundingMember" abstract="true" name="AEPTexasTransitionFundingandRestorationFundingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NaturalGasExpensesAndPurchasesOfElectricityToBeRecoveredFromCustomersTableTextBlock" abstract="false" name="NaturalGasExpensesAndPurchasesOfElectricityToBeRecoveredFromCustomersTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_UtilityMoneyPoolParticipantsMoneyPoolActivityAndAuthorizedBorrowingLimitsTextBlock" abstract="false" name="UtilityMoneyPoolParticipantsMoneyPoolActivityAndAuthorizedBorrowingLimitsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_DirectBorrowingActivityTableTextBlock" abstract="false" name="DirectBorrowingActivityTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_AEPTCoParentMember" abstract="true" name="AEPTCoParentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RequestToUpdateSWEPCoGenerationDepreciationRatesMember" abstract="true" name="RequestToUpdateSWEPCoGenerationDepreciationRatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_SettlementAgreementIncreaseRelatedToDepreciationExpense" abstract="false" name="SettlementAgreementIncreaseRelatedToDepreciationExpense" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_KentuckyDeferredPurchasePowerExpensesMember" abstract="true" name="KentuckyDeferredPurchasePowerExpensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ComprehensiveIncomeAbstract" abstract="true" name="ComprehensiveIncomeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_RecommendedCustomerRefunds" abstract="false" name="RecommendedCustomerRefunds" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_NonRegistrantsMember" abstract="true" name="NonRegistrantsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_GeneratingUnitsProbableofAbandonmentMember" abstract="true" name="GeneratingUnitsProbableofAbandonmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaximumFuturePaymentsForLettersOfCreditAbstract" abstract="true" name="MaximumFuturePaymentsForLettersOfCreditAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_AccumulatedProvisionsForRateRefunds" abstract="false" name="AccumulatedProvisionsForRateRefunds" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PirkeyPowerPlantAndRelatedFuelOperationsMember" abstract="true" name="PirkeyPowerPlantAndRelatedFuelOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_A45YearsMember" abstract="true" name="A45YearsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_SettlementAgreementIncreaseRelatedToStormExpense" abstract="false" name="SettlementAgreementIncreaseRelatedToStormExpense" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_AEPGeneratingCompanyMember" abstract="true" name="AEPGeneratingCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_GrossAmountsOfRiskManagementAssetsLiabilitiesRecognizedMember" abstract="true" name="GrossAmountsOfRiskManagementAssetsLiabilitiesRecognizedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ParentOwnershipInterestInETT" abstract="false" name="ParentOwnershipInterestInETT" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_A2013ReversalOfPreviouslyRecordedRegulatoryDisallowances" abstract="false" name="A2013ReversalOfPreviouslyRecordedRegulatoryDisallowances" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_WithinCurrentYearMember" abstract="true" name="WithinCurrentYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_InvestmentInChargePointMember" abstract="true" name="InvestmentInChargePointMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_FERCMatterDomain" abstract="true" name="FERCMatterDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NonutilityMember" abstract="true" name="NonutilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RequestedAnnualIncreaseInRebuttal" abstract="false" name="RequestedAnnualIncreaseInRebuttal" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_VerticallyIntegratedUtilitiesRevenuesMember" abstract="true" name="VerticallyIntegratedUtilitiesRevenuesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_TermLoanMember" abstract="true" name="TermLoanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OtherLongTermDebtSixteenMember" abstract="true" name="OtherLongTermDebtSixteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RegulatoryLiabilitiesMember" abstract="true" name="RegulatoryLiabilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CommercialMember" abstract="true" name="CommercialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AshPondClosureRevisionMember" abstract="true" name="AshPondClosureRevisionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AROAmountForRevisedCCRRuleComplianceTableTextBlock" abstract="false" name="AROAmountForRevisedCCRRuleComplianceTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="aep_ProceedsOfMineralRightsSaleDomain" abstract="true" name="ProceedsOfMineralRightsSaleDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_LandfilleClosureRevisionMember" abstract="true" name="LandfilleClosureRevisionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MutualFundsFixedIncomeMember" abstract="true" name="MutualFundsFixedIncomeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RegulatoryAssetsExpectedToBeRecoveredThroughSecuritization" abstract="false" name="RegulatoryAssetsExpectedToBeRecoveredThroughSecuritization" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ReductionInFuelCosts" abstract="false" name="ReductionInFuelCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PretaxReductionInInvestmentBasis" abstract="false" name="PretaxReductionInInvestmentBasis" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_HeldForSaleMember" abstract="true" name="HeldForSaleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AssetsAndLiabilitiesHeldForSaleDomain" abstract="true" name="AssetsAndLiabilitiesHeldForSaleDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_IntervenorRecommendedOppositionToReturnOnRetirementCosts" abstract="false" name="IntervenorRecommendedOppositionToReturnOnRetirementCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ProceedsForKYOperationsMember" abstract="true" name="ProceedsForKYOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RegulatoryAssetReturnDisclosureDomain" abstract="true" name="RegulatoryAssetReturnDisclosureDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OtherVariousExpensesMember" abstract="true" name="OtherVariousExpensesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaturityOfFairValueRiskManagementContractsAxis" abstract="true" name="MaturityOfFairValueRiskManagementContractsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_A2022MichiganPSCRReconciliationMember" abstract="true" name="A2022MichiganPSCRReconciliationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_RenewableGenerationMember" abstract="true" name="RenewableGenerationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_EnterpriseValue" abstract="false" name="EnterpriseValue" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SeniorUnsecuredNotesSixMember" abstract="true" name="SeniorUnsecuredNotesSixMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_WholesaleandCompetitiveMember" abstract="true" name="WholesaleandCompetitiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OtherLongTermDebtTenMember" abstract="true" name="OtherLongTermDebtTenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_FeesPaidToAepCreditForCustomerAccountsReceivableSoldAbstract" abstract="true" name="FeesPaidToAepCreditForCustomerAccountsReceivableSoldAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_ConsolidatedAssetsAndLiabilitiesOfVariableInterestEntitiesTableTextBlock" abstract="false" name="ConsolidatedAssetsAndLiabilitiesOfVariableInterestEntitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_AdditionalRevenuesRecognizedtobeSurchargedtoCustomers" abstract="false" name="AdditionalRevenuesRecognizedtobeSurchargedtoCustomers" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ApprovedNetIncreaseInKentuckyAnnualRevenues" abstract="false" name="ApprovedNetIncreaseInKentuckyAnnualRevenues" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_A2023AltTwoUnderRecovery" abstract="false" name="A2023AltTwoUnderRecovery" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ReductionInRevenueRequirementForRecoveryOfActualTestYearPJMTransmissionCosts" abstract="false" name="ReductionInRevenueRequirementForRecoveryOfActualTestYearPJMTransmissionCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RequestedWeightedAverageCostOfCapital" abstract="false" name="RequestedWeightedAverageCostOfCapital" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_ConesvilleGeneratingStationUnitNo4Member" abstract="true" name="ConesvilleGeneratingStationUnitNo4Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ReversalofaRegulatoryProvision" abstract="false" name="ReversalofaRegulatoryProvision" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_JuniorSubordinatesNotesThreeMember" abstract="true" name="JuniorSubordinatesNotesThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_IndianaMichiganPowerCoMember" abstract="true" name="IndianaMichiganPowerCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_LessThan1YearMember" abstract="true" name="LessThan1YearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_BaseRateDomain" abstract="true" name="BaseRateDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AmountOfApprovedIncreaseRelatedToStormCatastropheReserve" abstract="false" name="AmountOfApprovedIncreaseRelatedToStormCatastropheReserve" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PowerParticipationRatio" abstract="false" name="PowerParticipationRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_RecognitionPeriodAxis" abstract="true" name="RecognitionPeriodAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_CommitmentFromBankConduitsToFinanceReceivables" abstract="false" name="CommitmentFromBankConduitsToFinanceReceivables" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_CarryingCostsIncome" abstract="false" name="CarryingCostsIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OklaunionPurchasePowerAgreementCurrent" abstract="false" name="OklaunionPurchasePowerAgreementCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_FERC2021PJMAndSPPTransmissionFormulaRateChallengeMember" abstract="true" name="FERC2021PJMAndSPPTransmissionFormulaRateChallengeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_RecommendedAnnualBaseRateDecrease" abstract="false" name="RecommendedAnnualBaseRateDecrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaximumSharesIssuedUnderEquityUnitsConversion" abstract="false" name="MaximumSharesIssuedUnderEquityUnitsConversion" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="aep_NotesPayableOtherPayableMember" abstract="true" name="NotesPayableOtherPayableMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CookPlantMember" abstract="true" name="CookPlantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_AssetsAndLiabilitiesHeldForSaleTableTextBlock" abstract="false" name="AssetsAndLiabilitiesHeldForSaleTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="aep_AdjustedCostOfDebtSecurities" abstract="false" name="AdjustedCostOfDebtSecurities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_JuniorSubordinatesNotesTwoMember" abstract="true" name="JuniorSubordinatesNotesTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_EnvironmentalExpenseDeferralVirginiaMember" abstract="true" name="EnvironmentalExpenseDeferralVirginiaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_FinancingActivitiesTextualsAbstract" abstract="true" name="FinancingActivitiesTextualsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_ApprovedAdditionalVegetationManagementExpenses" abstract="false" name="ApprovedAdditionalVegetationManagementExpenses" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RequestedAnnualBaseRateStormLevelRestorationExpense" abstract="false" name="RequestedAnnualBaseRateStormLevelRestorationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RockportOffsetRecoveryMember" abstract="true" name="RockportOffsetRecoveryMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_ImpactOfCashFlowHedgesOnBalanceSheetAbstract" abstract="true" name="ImpactOfCashFlowHedgesOnBalanceSheetAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_DebtInstrumentMaturityDate1" abstract="false" name="DebtInstrumentMaturityDate1" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:gYearItemType"/>
  <xs:element id="aep_TotalLongTermDebtDueWithinOneYrAxis" abstract="true" name="TotalLongTermDebtDueWithinOneYrAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_EffectiveIncomeTaxRateReconciliationParentCompanyLossBenefitPercentage" abstract="false" name="EffectiveIncomeTaxRateReconciliationParentCompanyLossBenefitPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_NortheasternPlantUnit3Member" abstract="true" name="NortheasternPlantUnit3Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OxbowMineRelatedCostsRecoveryRequest" abstract="false" name="OxbowMineRelatedCostsRecoveryRequest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AdjustedCostOfEquitySecurities" abstract="false" name="AdjustedCostOfEquitySecurities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AffiliatedAccountsReceivableContractswithCustomersTableTextBlock" abstract="false" name="AffiliatedAccountsReceivableContractswithCustomersTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_FairValueOfDerivativeLiabilitiesSubjectToCrossDefaultProvisions" abstract="false" name="FairValueOfDerivativeLiabilitiesSubjectToCrossDefaultProvisions" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_StaffRecommendedAnnualRateDecrease" abstract="false" name="StaffRecommendedAnnualRateDecrease" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AmortizationOfPensionAndOtherPostretirementBenefitPlansAbstract" abstract="true" name="AmortizationOfPensionAndOtherPostretirementBenefitPlansAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_AssetsAndLiabilitiesHeldForSaleAxis" abstract="true" name="AssetsAndLiabilitiesHeldForSaleAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_AppalachianPowerCoMember" abstract="true" name="AppalachianPowerCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ComparativeAccountsReceivableInformationTextBlock" abstract="false" name="ComparativeAccountsReceivableInformationTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_EmployeeBenefitsAndPensionObligations" abstract="false" name="EmployeeBenefitsAndPensionObligations" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_StaffCalculatedRevenueDeficiency" abstract="false" name="StaffCalculatedRevenueDeficiency" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_BaseRateAxis" abstract="true" name="BaseRateAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_VerticallyIntegratedUtilitiesMember" abstract="true" name="VerticallyIntegratedUtilitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RecommendedDisallowance" abstract="false" name="RecommendedDisallowance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SpentNuclearFuelAndDecommissioningTrusts" abstract="false" name="SpentNuclearFuelAndDecommissioningTrusts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_NuclearTrustFundInvestmentsAbstract" abstract="true" name="NuclearTrustFundInvestmentsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
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  <xs:element id="aep_TotalLongTermDebtDueWithinOneYearDomain" abstract="true" name="TotalLongTermDebtDueWithinOneYearDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PollutionControlBondFiveMember" abstract="true" name="PollutionControlBondFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AmountOfIncreaseRelatedToAnnualAmortizationExpense" abstract="false" name="AmountOfIncreaseRelatedToAnnualAmortizationExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_DoletHillsPowerStationAcceleratedDepreciationMember" abstract="true" name="DoletHillsPowerStationAcceleratedDepreciationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OtherComprehensiveIncomeUnrealizedGainLossArisingDuringPeriodNetOfTax" abstract="false" name="OtherComprehensiveIncomeUnrealizedGainLossArisingDuringPeriodNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ChangesInFairValueAllocatedToRegulatedJurisdiction" abstract="false" name="ChangesInFairValueAllocatedToRegulatedJurisdiction" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisPolicyTextBlock" abstract="false" name="FairValueAssetsAndLiabilitiesMeasuredOnRecurringBasisPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
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  <xs:element id="aep_A2021LouisianaStormCostFilingMember" abstract="true" name="A2021LouisianaStormCostFilingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AepCreditIncMember" abstract="true" name="AepCreditIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_PirkeyPowerPlantAndDoletHillsPowerStationMember" abstract="true" name="PirkeyPowerPlantAndDoletHillsPowerStationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_MaximumPotentialLeasePaymentsAEPROBargeandBoatLeases" abstract="false" name="MaximumPotentialLeasePaymentsAEPROBargeandBoatLeases" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SettlementAgreementAnnualIncrease" abstract="false" name="SettlementAgreementAnnualIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_February2021SevereStormFuelCostsMember" abstract="true" name="February2021SevereStormFuelCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_FuelAdjustmentClausePurchasedPowerLimitationMember" abstract="true" name="FuelAdjustmentClausePurchasedPowerLimitationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CrossDefaultProvisionsMaximumThirdPartyObligationAmount" abstract="false" name="CrossDefaultProvisionsMaximumThirdPartyObligationAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_TransmissionandDistributionUtilitiesRevenuesMember" abstract="true" name="TransmissionandDistributionUtilitiesRevenuesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PollutionControlBondTwoMember" abstract="true" name="PollutionControlBondTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_SeniorUnsecuredNotesTwelveMember" abstract="true" name="SeniorUnsecuredNotesTwelveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_AppalachianConsumerRateReliefFundingMember" abstract="true" name="AppalachianConsumerRateReliefFundingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ReclamationCostRevisionMember" abstract="true" name="ReclamationCostRevisionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_March2025Member" abstract="true" name="March2025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="aep_A2023AltTwoAssetSecuritization" abstract="false" name="A2023AltTwoAssetSecuritization" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AssetsAndLiabilitiesHFSContractedRenewablesTableTextBlock" abstract="false" name="AssetsAndLiabilitiesHFSContractedRenewablesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_PollutionControlBondMember" abstract="true" name="PollutionControlBondMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_SecuritizedDeferredIssuanceRelatedExpenses" abstract="false" name="SecuritizedDeferredIssuanceRelatedExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_UsGaap_VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesAbstractAbstract" abstract="true" name="UsGaap_VariableInterestEntityConsolidatedCarryingAmountAssetsAndLiabilitiesAbstractAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_ApprovedRecoveryUnderRecoveredCosts" abstract="false" name="ApprovedRecoveryUnderRecoveredCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_NewMexicoRenewableDevelopmentMember" abstract="true" name="NewMexicoRenewableDevelopmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_DryLakeSolarProjectMember" abstract="true" name="DryLakeSolarProjectMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_ReturnOfCapitalToParentCashFlows" abstract="false" name="ReturnOfCapitalToParentCashFlows" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaxPotentialLossOnMasterLeaseAgreements" abstract="false" name="MaxPotentialLossOnMasterLeaseAgreements" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SecuritizationStormCosts" abstract="false" name="SecuritizationStormCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RequestedSecuritizationBondsDeferredPurchasedPowerExpenses" abstract="false" name="RequestedSecuritizationBondsDeferredPurchasedPowerExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_A2020EquityUnitsMember" abstract="true" name="A2020EquityUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AnnualENECFilingRateIncrease" abstract="false" name="AnnualENECFilingRateIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OpinionCoalFiredPlantsCapacityFactor" abstract="false" name="OpinionCoalFiredPlantsCapacityFactor" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_DepreciationExpenseMember" abstract="true" name="DepreciationExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ImpactofFairValueHedgesonBalanceSheetTableTextBlock" abstract="false" name="ImpactofFairValueHedgesonBalanceSheetTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_SecuritizedPlantRetirementCosts" abstract="false" name="SecuritizedPlantRetirementCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_EmployeeRelatedExpenseMember" abstract="true" name="EmployeeRelatedExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ElectricGenerationTransmissionDistributionRevenuesMember" abstract="true" name="ElectricGenerationTransmissionDistributionRevenuesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PlantInServiceMember" abstract="true" name="PlantInServiceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EquityMethodOwnershipAxis" abstract="true" name="EquityMethodOwnershipAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_DebtInstrumentInterestVariableRate" abstract="false" name="DebtInstrumentInterestVariableRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_GuarantorObligationsCurrentCarryingValueContingentPortion" abstract="false" name="GuarantorObligationsCurrentCarryingValueContingentPortion" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_EstimatedELGCosts" abstract="false" name="EstimatedELGCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MobileGenerationLeasePaymentsMember" abstract="true" name="MobileGenerationLeasePaymentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaturityPeriod3Member" abstract="true" name="MaturityPeriod3Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RequestedRecoveryOfAllowedCosts" abstract="false" name="RequestedRecoveryOfAllowedCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_EffectiveIncomeTaxRateReconciliationproductionandinvestmenttaxcredits" abstract="false" name="EffectiveIncomeTaxRateReconciliationproductionandinvestmenttaxcredits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_ProtectedCellOfEnergyInsuranceServicesIncMember" abstract="true" name="ProtectedCellOfEnergyInsuranceServicesIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RecommendedDisallowancePurchasedPowerOVECICPA" abstract="false" name="RecommendedDisallowancePurchasedPowerOVECICPA" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_MaturityPeriod2Member" abstract="true" name="MaturityPeriod2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AEPTransmissionHoldcoMember" abstract="true" name="AEPTransmissionHoldcoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SeniorUnsecuredNotesMember" abstract="true" name="SeniorUnsecuredNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OtherLongTermDebtFourteenMember" abstract="true" name="OtherLongTermDebtFourteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AEPTexasCentralTransitionFundingCoMember" abstract="true" name="AEPTexasCentralTransitionFundingCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PropertyPlantAndEquipmentTextualsAbstract" abstract="true" name="PropertyPlantAndEquipmentTextualsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_TexasRetailElectricProviderBadDebtExpenseMember" abstract="true" name="TexasRetailElectricProviderBadDebtExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ForwardEquityPurchaseContractDate" abstract="false" name="ForwardEquityPurchaseContractDate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:gYearItemType"/>
  <xs:element id="aep_SecuritizationBondsFourMember" abstract="true" name="SecuritizationBondsFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DerivativeNonmonetaryVolumeNotionalAmount" abstract="false" name="DerivativeNonmonetaryVolumeNotionalAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:volumeItemType"/>
  <xs:element id="aep_BorrowingsfromParent" abstract="false" name="BorrowingsfromParent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MoneyPoolParticipantbyCompanyTypeAxis" abstract="true" name="MoneyPoolParticipantbyCompanyTypeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_RockportLeaseMember" abstract="true" name="RockportLeaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OklaunionPowerStationAcceleratedDepreciationMember" abstract="true" name="OklaunionPowerStationAcceleratedDepreciationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ShareOfNetInvestmentInPirkeyPowerPlant" abstract="false" name="ShareOfNetInvestmentInPirkeyPowerPlant" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_GuaranteeObligationsCurrentCarryingValueOtherLiabilitiesNoncurrent" abstract="false" name="GuaranteeObligationsCurrentCarryingValueOtherLiabilitiesNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaximumMinimumandAverageInterestRatesforFundsBorrowedfromandLoanedtoAEPTableTextBlock" abstract="false" name="MaximumMinimumandAverageInterestRatesforFundsBorrowedfromandLoanedtoAEPTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_DoletHillsPowerStationMember" abstract="true" name="DoletHillsPowerStationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ProprosedESPReturnOnCommonEquity" abstract="false" name="ProprosedESPReturnOnCommonEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_CompetitiveContractedRenewablePortfolioMember" abstract="true" name="CompetitiveContractedRenewablePortfolioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_StaffRecommendedAdjustmentsToCompaniesRequest" abstract="false" name="StaffRecommendedAdjustmentsToCompaniesRequest" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RecommendedRefundPeriod" abstract="false" name="RecommendedRefundPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="aep_IntervenorRecommendedBaseRateStormCostRemoval" abstract="false" name="IntervenorRecommendedBaseRateStormCostRemoval" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OtherLongTermDebtElevenMember" abstract="true" name="OtherLongTermDebtElevenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_VariableInterestEntitiesAbstract" abstract="true" name="VariableInterestEntitiesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_PriorCreditFacilitiesStructured" abstract="false" name="PriorCreditFacilitiesStructured" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaturityOfFairValueRiskManagementContractsDomain" abstract="true" name="MaturityOfFairValueRiskManagementContractsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_NotesPayableOtherPayableTwelveMember" abstract="true" name="NotesPayableOtherPayableTwelveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_PJMPortionOfAnnualRevenueIncrease" abstract="false" name="PJMPortionOfAnnualRevenueIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PollutionControlBondFourMember" abstract="true" name="PollutionControlBondFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RequestedNetIncreaseinTexasAnnualRevenues" abstract="false" name="RequestedNetIncreaseinTexasAnnualRevenues" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_A20202022VirginiaTriennialReviewMember" abstract="true" name="A20202022VirginiaTriennialReviewMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RecommendedEquityCapitalStructure" abstract="false" name="RecommendedEquityCapitalStructure" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="aep_EstimatedTurkAFUDCRefunds" abstract="false" name="EstimatedTurkAFUDCRefunds" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_NetOfAffiliatedProvisionsForRefundDomain" abstract="true" name="NetOfAffiliatedProvisionsForRefundDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NotionalVolumeOfDerivativeInstrumentsAbstract" abstract="true" name="NotionalVolumeOfDerivativeInstrumentsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_TurkAFUDCRefundsMember" abstract="true" name="TurkAFUDCRefundsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_OklahomaMember" abstract="true" name="OklahomaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_FinancialTrasnsmissionRightsMember" abstract="true" name="FinancialTrasnsmissionRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OCCStaffRecommendedAnnualBaseRateIncrease" abstract="false" name="OCCStaffRecommendedAnnualBaseRateIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_FACCreditToCustomers" abstract="false" name="FACCreditToCustomers" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_CorporateAlternativeMinimumTaxDomain" abstract="true" name="CorporateAlternativeMinimumTaxDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_WelshPlantUnit1and3Member" abstract="true" name="WelshPlantUnit1and3Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OwnershipInterestInMitchellPowerPlant" abstract="false" name="OwnershipInterestInMitchellPowerPlant" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_BookValuesAndFairValuesOfLongTermDebtPolicyTextBlock" abstract="false" name="BookValuesAndFairValuesOfLongTermDebtPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_ProvisionForRefundNonaffiliated" abstract="false" name="ProvisionForRefundNonaffiliated" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_HB6SettlementPayment" abstract="false" name="HB6SettlementPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RequestedSecuritizationBondsPlantRecoveryRetirementCosts" abstract="false" name="RequestedSecuritizationBondsPlantRecoveryRetirementCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_DeferralOfIncrementalNuclearRefuelingOutageExpensesNet" abstract="false" name="DeferralOfIncrementalNuclearRefuelingOutageExpensesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AEPTexasInterimTransmissionAndDistributionRatesMember" abstract="true" name="AEPTexasInterimTransmissionAndDistributionRatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AEPTransmissionCoMember" abstract="true" name="AEPTransmissionCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RevenueFromContractWithCustomersNetOfProvisionsForRefundIncludingAssessedTax" abstract="false" name="RevenueFromContractWithCustomersNetOfProvisionsForRefundIncludingAssessedTax" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_TrustAssetsDomain" abstract="true" name="TrustAssetsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SeniorUnsecuredNotesNineMember" abstract="true" name="SeniorUnsecuredNotesNineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EffectiveIncomeTaxRateReconciliationFlowThroughPercentage" abstract="false" name="EffectiveIncomeTaxRateReconciliationFlowThroughPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_ContestedJointAgreementDebtCapitalStructure" abstract="false" name="ContestedJointAgreementDebtCapitalStructure" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_KentuckyTransmissionCompanyMember" abstract="true" name="KentuckyTransmissionCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaximumPotentialAmountofFuturePaymentsAssociatedwithGuarantee" abstract="false" name="MaximumPotentialAmountofFuturePaymentsAssociatedwithGuarantee" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_AverageInterestRateForFundsLoaned" abstract="false" name="AverageInterestRateForFundsLoaned" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_OtherCashDepositsMember" abstract="true" name="OtherCashDepositsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AmortizationOfGenerationDeferrals" abstract="false" name="AmortizationOfGenerationDeferrals" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PollutionControlBondEightMember" abstract="true" name="PollutionControlBondEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DIRRevenueAmountAbove2019AuthorizedLimit" abstract="false" name="DIRRevenueAmountAbove2019AuthorizedLimit" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_FairValueSignificantUnobservableInputPricePerUnit" abstract="false" name="FairValueSignificantUnobservableInputPricePerUnit" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_NotesPayableOtherPayableThreeMember" abstract="true" name="NotesPayableOtherPayableThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AmortizationOfNuclearFuel" abstract="false" name="AmortizationOfNuclearFuel" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_TransmissionAndDistributionCompaniesMember" abstract="true" name="TransmissionAndDistributionCompaniesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_A2023IndianaBaseRateCaseMember" abstract="true" name="A2023IndianaBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_ChangeInRegulatoryAssets" abstract="false" name="ChangeInRegulatoryAssets" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_EquityunitsMember" abstract="true" name="EquityunitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NumberOfEligibleEmployees" abstract="false" name="NumberOfEligibleEmployees" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="aep_GainLossOnDispositionOfBusinessNetOfTax" abstract="false" name="GainLossOnDispositionOfBusinessNetOfTax" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_BasisOfAccountingTextBlock" abstract="false" name="BasisOfAccountingTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_ExpectedReimbursementForSpentNuclearFuelDryCaskStorage" abstract="false" name="ExpectedReimbursementForSpentNuclearFuelDryCaskStorage" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RockportPlantUnit2AcquisitionPrice" abstract="false" name="RockportPlantUnit2AcquisitionPrice" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_A2022MichiganIntegratedResourcePlanFilingMember" abstract="true" name="A2022MichiganIntegratedResourcePlanFilingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_A2021MichiganPSCRReconciliationMember" abstract="true" name="A2021MichiganPSCRReconciliationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_IndependenceEnergyConnectionProjectMember" abstract="true" name="IndependenceEnergyConnectionProjectMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_FlatRidgeIIMember" abstract="true" name="FlatRidgeIIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AverageBorrowingsfromMoneyPool" abstract="false" name="AverageBorrowingsfromMoneyPool" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ReclassificationOfKPCoPensionAndOPEBRegulatoryAssetsFromAOCIAxis" abstract="true" name="ReclassificationOfKPCoPensionAndOPEBRegulatoryAssetsFromAOCIAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_ApprovedRecoveryOfAllowedCostsThroughInterimRates" abstract="false" name="ApprovedRecoveryOfAllowedCostsThroughInterimRates" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ApprovedSecuritization" abstract="false" name="ApprovedSecuritization" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_StateTranscosMember" abstract="true" name="StateTranscosMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ContestedJointAgreementInterimAnnualBaseRateCumulativeRevenueIncrease" abstract="false" name="ContestedJointAgreementInterimAnnualBaseRateCumulativeRevenueIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_A2024OklahomaBaseRateCaseMember" abstract="true" name="A2024OklahomaBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="aep_A2023AltTwoWVAmosAndMountaineerBookValueAndCCRAndELGInvestments" abstract="false" name="A2023AltTwoWVAmosAndMountaineerBookValueAndCCRAndELGInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_TrustAssetsAxis" abstract="true" name="TrustAssetsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_A2020TexasBaseRateCaseMember" abstract="true" name="A2020TexasBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AccountsReceivableRetainedInterestAndPledgedAsCollateralLessUncollectibleAccounts" abstract="false" name="AccountsReceivableRetainedInterestAndPledgedAsCollateralLessUncollectibleAccounts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ProductionTaxCreditProceeds" abstract="false" name="ProductionTaxCreditProceeds" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_NonutilityMoneyPoolActivityTableTextBlock" abstract="false" name="NonutilityMoneyPoolActivityTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_DisallowedOVECPurchasePowerCosts" abstract="false" name="DisallowedOVECPurchasePowerCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_CorporateAlternativeMinimumTax" abstract="false" name="CorporateAlternativeMinimumTax" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_IntervenorRecommendedWACC" abstract="false" name="IntervenorRecommendedWACC" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_TotalLongTermDebtDomain" abstract="true" name="TotalLongTermDebtDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ConstructionStatusAxis" abstract="true" name="ConstructionStatusAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
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  <xs:element id="aep_IntervenorRecommendedOppositionToTaxRelatedRegulatoryAsset" abstract="false" name="IntervenorRecommendedOppositionToTaxRelatedRegulatoryAsset" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_RemainingDoletFuelRegAssetRecoveredOverThreeYears" abstract="false" name="RemainingDoletFuelRegAssetRecoveredOverThreeYears" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_EquityUnitsDomain" abstract="true" name="EquityUnitsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SecuritizedUnderRecoveredRiderCosts" abstract="false" name="SecuritizedUnderRecoveredRiderCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaximumPotentialLossAbstract" abstract="true" name="MaximumPotentialLossAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
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  <xs:element id="aep_NotesPayableOtherPayableTwoMember" abstract="true" name="NotesPayableOtherPayableTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaturityPeriodFourMember" abstract="true" name="MaturityPeriodFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OCCStaffAndIntervenorRecommendedAnnualRevenueChangeRange" abstract="false" name="OCCStaffAndIntervenorRecommendedAnnualRevenueChangeRange" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RegulatedGeneratingUnitstobeRetiredTableTextBlock" abstract="false" name="RegulatedGeneratingUnitstobeRetiredTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_PrepaidPensionAndOPEBAssetsMember" abstract="true" name="PrepaidPensionAndOPEBAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_UncommittedFacility" abstract="false" name="UncommittedFacility" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_FERCRTOIncentiveComplaintMember" abstract="true" name="FERCRTOIncentiveComplaintMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CommitmentsGuaranteesAndContingenciesTextualsAbstract" abstract="true" name="CommitmentsGuaranteesAndContingenciesTextualsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_ReclassificationsFromAccumulatedOtherComprehensiveIncomeAbstract" abstract="true" name="ReclassificationsFromAccumulatedOtherComprehensiveIncomeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_CommodityAbstract" abstract="true" name="CommodityAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_IntervenorRecommendedBaseRateBoilerMaintenanceRemoval" abstract="false" name="IntervenorRecommendedBaseRateBoilerMaintenanceRemoval" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_StaffAndIntervenorRecommendedReturnOnEquity" abstract="false" name="StaffAndIntervenorRecommendedReturnOnEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_RegulatedStatusDomain" abstract="true" name="RegulatedStatusDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AnnualMRBCSurchargeUpdate" abstract="false" name="AnnualMRBCSurchargeUpdate" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_NonAffiliateInterest" abstract="false" name="NonAffiliateInterest" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_BPWindEnergyMember" abstract="true" name="BPWindEnergyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_VariableInterestEntitiesMember" abstract="true" name="VariableInterestEntitiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_IndustrialMember" abstract="true" name="IndustrialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SettlementAgreementEquityCapitalStructure" abstract="false" name="SettlementAgreementEquityCapitalStructure" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="aep_ReturnOfCapitalToParentEquityStatement" abstract="false" name="ReturnOfCapitalToParentEquityStatement" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AEPTexasCumulativeRevenuesSubjectToReview" abstract="false" name="AEPTexasCumulativeRevenuesSubjectToReview" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SeniorUnsecuredNotesTwoMember" abstract="true" name="SeniorUnsecuredNotesTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RevisedRequestedAnnualIncrease" abstract="false" name="RevisedRequestedAnnualIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ApprovedRiderToRecoverDoletHillsAndPirkeyCosts" abstract="false" name="ApprovedRiderToRecoverDoletHillsAndPirkeyCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_CreditFacilitiesStructured" abstract="false" name="CreditFacilitiesStructured" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SecuritiesActivityWithinDecommissioningAndSnfTrustsTextBlock" abstract="false" name="SecuritiesActivityWithinDecommissioningAndSnfTrustsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_MoneyPoolParticipantByCompanyTypeDomain" abstract="true" name="MoneyPoolParticipantByCompanyTypeDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_HB6Member" abstract="true" name="HB6Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_FuelOverUnderRecoveryNet" abstract="false" name="FuelOverUnderRecoveryNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_GainMember" abstract="true" name="GainMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_NotesPayableOtherPayableTenMember" abstract="true" name="NotesPayableOtherPayableTenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_FairValueMeasurements1TextualsAbstract" abstract="true" name="FairValueMeasurements1TextualsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_ProposedPreviouslyIncurredCostsExpectedToRecover" abstract="false" name="ProposedPreviouslyIncurredCostsExpectedToRecover" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ETTInterimTransmissionRatesMember" abstract="true" name="ETTInterimTransmissionRatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NotesPayableOtherPayableEightMember" abstract="true" name="NotesPayableOtherPayableEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DomesticMember" abstract="true" name="DomesticMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_GainLossOnFairValuePortionOfLongTermDebt" abstract="false" name="GainLossOnFairValuePortionOfLongTermDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_IntervenorRecommendedAnnualBaseRateIncrease" abstract="false" name="IntervenorRecommendedAnnualBaseRateIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_GrossRealizedGainsOnInvestmentSalesOnShortTermInvestment" abstract="false" name="GrossRealizedGainsOnInvestmentSalesOnShortTermInvestment" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaximumBorrowingsfromMoneyPool" abstract="false" name="MaximumBorrowingsfromMoneyPool" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ProceedsOnSaleOfReceivablesToAepCreditTextBlock" abstract="false" name="ProceedsOnSaleOfReceivablesToAepCreditTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_A2016TexasBaseRateCaseMember" abstract="true" name="A2016TexasBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaturityofCreditFacilityAxis" abstract="true" name="MaturityofCreditFacilityAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_StaffRecommendedAnnualRateIncrease" abstract="false" name="StaffRecommendedAnnualRateIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_NetEquityUnitsIssuanceProceeds" abstract="false" name="NetEquityUnitsIssuanceProceeds" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RegulatoryAssetsPendingFinalRegulatoryApprovalMember" abstract="true" name="RegulatoryAssetsPendingFinalRegulatoryApprovalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OhioPowerCoMember" abstract="true" name="OhioPowerCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ApprovedCarryingCharge" abstract="false" name="ApprovedCarryingCharge" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_MoneyPoolParticipantsMoneyPoolActivityAndAuthorizedBorrowingLimitsAbstract" abstract="true" name="MoneyPoolParticipantsMoneyPoolActivityAndAuthorizedBorrowingLimitsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_DoletHillsFuelDisallowance" abstract="false" name="DoletHillsFuelDisallowance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_CrossDefaultProvisionTextBlock" abstract="false" name="CrossDefaultProvisionTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_OrganizationAndSummaryOfSignificantAccountingPoliciesTextualsAbstract" abstract="true" name="OrganizationAndSummaryOfSignificantAccountingPoliciesTextualsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_CommitmentsGuaranteesAndContingenciesAbstract" abstract="true" name="CommitmentsGuaranteesAndContingenciesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_EstimatedELGInvestment" abstract="false" name="EstimatedELGInvestment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_JuniorSubordinatedNotesMember" abstract="true" name="JuniorSubordinatedNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_SabineMiningCoMember" abstract="true" name="SabineMiningCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_VirginiaMember" abstract="true" name="VirginiaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AmountOfIncreaseRelatedToNorthCentralWindFacilities" abstract="false" name="AmountOfIncreaseRelatedToNorthCentralWindFacilities" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_WarrantsHeldInChargePointMember" abstract="true" name="WarrantsHeldInChargePointMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RevisedRequestedNetAnnualIncrease" abstract="false" name="RevisedRequestedNetAnnualIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_InterestRateMember" abstract="true" name="InterestRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DirectBorrowingMember" abstract="true" name="DirectBorrowingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_A2023IntervenorRecommendedShareOfOSSRevenuesWithCustomers" abstract="false" name="A2023IntervenorRecommendedShareOfOSSRevenuesWithCustomers" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="aep_CCRInvestment" abstract="false" name="CCRInvestment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaximumInterestRate" abstract="false" name="MaximumInterestRate" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_AppleBlossomandBlackOakMember" abstract="true" name="AppleBlossomandBlackOakMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AffiliatedDividendsCommonStock" abstract="false" name="AffiliatedDividendsCommonStock" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_NotesPayableOtherPayableFourMember" abstract="true" name="NotesPayableOtherPayableFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EstablishmentOfRegulatoryAsset" abstract="false" name="EstablishmentOfRegulatoryAsset" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SettlementAgreementDebtCapitalStructure" abstract="false" name="SettlementAgreementDebtCapitalStructure" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="aep_LongTermDebtAndOtherSecuritiesIssuedTextBlock" abstract="false" name="LongTermDebtAndOtherSecuritiesIssuedTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_EstimatedAllowedCostsRecoveredThroughRider" abstract="false" name="EstimatedAllowedCostsRecoveredThroughRider" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OtherLongTermDebtTwoMember" abstract="true" name="OtherLongTermDebtTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RecognitionPeriodDomain" abstract="true" name="RecognitionPeriodDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_WheelingPowerCompanyMember" abstract="true" name="WheelingPowerCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SeniorUnsecuredNotesTenMember" abstract="true" name="SeniorUnsecuredNotesTenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DebtAndEquitySecuritiesWithinOtherTemporaryInvestmentsTextBlock" abstract="false" name="DebtAndEquitySecuritiesWithinOtherTemporaryInvestmentsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_GuaranteeObligationsCurrentCarryingValueOtherLiabilitiesCurrent" abstract="false" name="GuaranteeObligationsCurrentCarryingValueOtherLiabilitiesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ReconciliationOfCashCashEquivalentsAndRestrictedCashTableTextBlock" abstract="false" name="ReconciliationOfCashCashEquivalentsAndRestrictedCashTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_TermLoan2Member" abstract="true" name="TermLoan2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_TotalNumberOfEmployees" abstract="false" name="TotalNumberOfEmployees" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="aep_OtherLongTermDebtTwelveMember" abstract="true" name="OtherLongTermDebtTwelveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CommitmentFromBankConduitsToFinanceReceivablesTwo" abstract="false" name="CommitmentFromBankConduitsToFinanceReceivablesTwo" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_DoletHillsPowerStationAndRelatedFuelOperationsMember" abstract="true" name="DoletHillsPowerStationAndRelatedFuelOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CurrentLongTermDebtAxis" abstract="true" name="CurrentLongTermDebtAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_OtherOperationExpenseMember" abstract="true" name="OtherOperationExpenseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_TotalCommitmentFromBankConduitsToFinanceReceivables" abstract="false" name="TotalCommitmentFromBankConduitsToFinanceReceivables" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RenewableEnergyCredits" abstract="false" name="RenewableEnergyCredits" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_StaffRecommendedEquityCapitalStructure" abstract="false" name="StaffRecommendedEquityCapitalStructure" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_BadDebtReservesRelatedToSecuritizedSaleOfAccountsReceivable" abstract="false" name="BadDebtReservesRelatedToSecuritizedSaleOfAccountsReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaximumMinimumAverageInterestRatesForFundsBorrowedFromLoanedToNonutilityMoneyPoolTextBlock" abstract="false" name="MaximumMinimumAverageInterestRatesForFundsBorrowedFromLoanedToNonutilityMoneyPoolTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_SecuritizedDeferredStormCosts" abstract="false" name="SecuritizedDeferredStormCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_NorthCentralWindEnergyFacilitiesDomain" abstract="true" name="NorthCentralWindEnergyFacilitiesDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PollutionControlBondNineMember" abstract="true" name="PollutionControlBondNineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ApprovedNetIncreaseinTexasAnnualRevenues" abstract="false" name="ApprovedNetIncreaseinTexasAnnualRevenues" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_TransourceEnergyMember" abstract="true" name="TransourceEnergyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EstimatedCCRELGCosts" abstract="false" name="EstimatedCCRELGCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_StaffAndIntervenorRecommendedAnnualIncrease" abstract="false" name="StaffAndIntervenorRecommendedAnnualIncrease" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OtherLongTermDebtThreeMember" abstract="true" name="OtherLongTermDebtThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AmountOfDoletHillsFuelCostsApprovedToRecover" abstract="false" name="AmountOfDoletHillsFuelCostsApprovedToRecover" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_A2023VirginiaBaseRateCaseMember" abstract="true" name="A2023VirginiaBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_EmployeesParticipatingInVoluntarySeveranceProgram" abstract="false" name="EmployeesParticipatingInVoluntarySeveranceProgram" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="aep_FairValueMeasurementsTextualsAbstract" abstract="true" name="FairValueMeasurementsTextualsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_RequestedAnnualIncrease" abstract="false" name="RequestedAnnualIncrease" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaximumPercentageDebtToCapitalization" abstract="false" name="MaximumPercentageDebtToCapitalization" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_MaximumAndMinimumInterestRatesForFundsEitherBorrowedFromOrLoanedToUtilityMoneyPoolTextBlock" abstract="false" name="MaximumAndMinimumInterestRatesForFundsEitherBorrowedFromOrLoanedToUtilityMoneyPoolTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_AssetRetirementObligationLouisianaMember" abstract="true" name="AssetRetirementObligationLouisianaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PropertyTaxMember" abstract="true" name="PropertyTaxMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NotesPayableOtherPayableSevenMember" abstract="true" name="NotesPayableOtherPayableSevenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PirkeyPowerPlantAcceleratedDepreciationMember" abstract="true" name="PirkeyPowerPlantAcceleratedDepreciationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DisallowedPSCRShortfall" abstract="false" name="DisallowedPSCRShortfall" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_WelshPlantUnit2Member" abstract="true" name="WelshPlantUnit2Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_StaffRecommendedDebtCapitalStructure" abstract="false" name="StaffRecommendedDebtCapitalStructure" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_GrossAmountsOffsetInStatementOfFinancialPositionMember" abstract="true" name="GrossAmountsOffsetInStatementOfFinancialPositionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RequestedSecuritizationBondsRegulatoryAssetsRecovery" abstract="false" name="RequestedSecuritizationBondsRegulatoryAssetsRecovery" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PirkeyGeneratingStationUnitNo1Member" abstract="true" name="PirkeyGeneratingStationUnitNo1Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CostsBelowAuthorizedROEBandInBaseRateIncreaseRequest" abstract="false" name="CostsBelowAuthorizedROEBandInBaseRateIncreaseRequest" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AverageInterestRateForFundsBorrowed" abstract="false" name="AverageInterestRateForFundsBorrowed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_EstimatedTurkAFUDCDisallowance" abstract="false" name="EstimatedTurkAFUDCDisallowance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PercentageofanAssetAcquired" abstract="false" name="PercentageofanAssetAcquired" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_CorporateAndOthrMember" abstract="true" name="CorporateAndOthrMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ReclassificationIntoAccumulatedOtherComprehensiveIncomeDomain" abstract="true" name="ReclassificationIntoAccumulatedOtherComprehensiveIncomeDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ChangesInAccumulatedOtherComprehensiveIncomeByComponentAbstract" abstract="true" name="ChangesInAccumulatedOtherComprehensiveIncomeByComponentAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_ALJRecommendedDenialOfRecoveryForFuelCostsDeferral" abstract="false" name="ALJRecommendedDenialOfRecoveryForFuelCostsDeferral" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_TotalLongTermDebtDueWithinOneYearMember" abstract="true" name="TotalLongTermDebtDueWithinOneYearMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NonaffiliatedPartyPowerParticipationRatio" abstract="false" name="NonaffiliatedPartyPowerParticipationRatio" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_MaturityofcreditfacilityDomain" abstract="true" name="MaturityofcreditfacilityDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_TermLoan3Member" abstract="true" name="TermLoan3Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EffectiveInterestRatesOnSecuritizationOfAccountsReceivable" abstract="false" name="EffectiveInterestRatesOnSecuritizationOfAccountsReceivable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_PurchasedElectricityFuelAndOtherConsumablesUsedForElectricGenerationMember" abstract="true" name="PurchasedElectricityFuelAndOtherConsumablesUsedForElectricGenerationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NetBookValueOfAmosAndMountaineerPlantsVirginia" abstract="false" name="NetBookValueOfAmosAndMountaineerPlantsVirginia" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_TotalLongTermDebtTwoDomain" abstract="true" name="TotalLongTermDebtTwoDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OhioMember" abstract="true" name="OhioMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OhioESPFilingsMember" abstract="true" name="OhioESPFilingsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_HedgingContractsMember" abstract="true" name="HedgingContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_FeesPaidToAepCreditForCustomerAccountsReceivableSoldTextBlock" abstract="false" name="FeesPaidToAepCreditForCustomerAccountsReceivableSoldTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_EnergyContractsMember" abstract="true" name="EnergyContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NorthCentralWindEnergyFacilitiesAxis" abstract="true" name="NorthCentralWindEnergyFacilitiesAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_FairValueHeldForSaleMember" abstract="true" name="FairValueHeldForSaleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RetailTradingAndMarketingMember" abstract="true" name="RetailTradingAndMarketingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SecuritiesActivityWithinDecommissioningAndSnfTrustsAbstract" abstract="true" name="SecuritiesActivityWithinDecommissioningAndSnfTrustsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_WholesaleTransmissionMember" abstract="true" name="WholesaleTransmissionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EffectiveIncomeTaxRateReconciliationDiscreteTaxAdjustmentsPercentage" abstract="false" name="EffectiveIncomeTaxRateReconciliationDiscreteTaxAdjustmentsPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_SundanceMember" abstract="true" name="SundanceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ProceedsOfMineralRightsSaleMember" abstract="true" name="ProceedsOfMineralRightsSaleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ReclassificationOfKPCoPensionAndOPEBRegulatoryAssetsFromAOCIMember" abstract="true" name="ReclassificationOfKPCoPensionAndOPEBRegulatoryAssetsFromAOCIMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AEPOnSitePartnersMember" abstract="true" name="AEPOnSitePartnersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_EffectiveIncomeTaxRateReconciliationAFUDCEquityPercentage" abstract="false" name="EffectiveIncomeTaxRateReconciliationAFUDCEquityPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_RequestedAnnualBaseRateIncresaeDepreciationExpensePortion" abstract="false" name="RequestedAnnualBaseRateIncresaeDepreciationExpensePortion" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_CarryingAmountofHedgedAssetLiability" abstract="false" name="CarryingAmountofHedgedAssetLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OtherLongTermDebtSeventeenMember" abstract="true" name="OtherLongTermDebtSeventeenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_CorporateAlternativeMinimumTaxAxis" abstract="true" name="CorporateAlternativeMinimumTaxAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_LoanstoParent" abstract="false" name="LoanstoParent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_WestVirginiaMember" abstract="true" name="WestVirginiaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OCCStaffRecommendedReturnOnEquity" abstract="false" name="OCCStaffRecommendedReturnOnEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="aep_ProposedSettlementAnnualRateIncrease" abstract="false" name="ProposedSettlementAnnualRateIncrease" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_TexasMember" abstract="true" name="TexasMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_GlenLynStationMember" abstract="true" name="GlenLynStationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaximumLoanstoMoneyPool" abstract="false" name="MaximumLoanstoMoneyPool" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_ProceedsForKYOperationsAxis" abstract="true" name="ProceedsForKYOperationsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_EstimatedPretaxIncomeReduction" abstract="false" name="EstimatedPretaxIncomeReduction" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_NetUnderRecoveredFuelCosts" abstract="false" name="NetUnderRecoveredFuelCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_CrossAccelerationProvisionsMaximumThirdPartyObligationAmount" abstract="false" name="CrossAccelerationProvisionsMaximumThirdPartyObligationAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_DccFuelMember" abstract="true" name="DccFuelMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaximumAndMinimumInterestRatesAbstract" abstract="true" name="MaximumAndMinimumInterestRatesAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_SeniorUnsecuredNotesFourMember" abstract="true" name="SeniorUnsecuredNotesFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PreviouslyIncurredCostsDeferralBelowAuthorizedROEBand" abstract="false" name="PreviouslyIncurredCostsDeferralBelowAuthorizedROEBand" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_WelshUnit1And3AcceleratedDepreciationMember" abstract="true" name="WelshUnit1And3AcceleratedDepreciationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_TrustAssetsForDecommissioningAndSpentNuclearFuelDisposalPolicyTextBlock" abstract="false" name="TrustAssetsForDecommissioningAndSpentNuclearFuelDisposalPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_ReclassificationOfKPCoPensionAndOPEBRegulatoryAssetsFromAOCIDomain" abstract="true" name="ReclassificationOfKPCoPensionAndOPEBRegulatoryAssetsFromAOCIDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_DebtAndEquitySecuritiesWithinOtherTemporaryInvestmentsAbstract" abstract="true" name="DebtAndEquitySecuritiesWithinOtherTemporaryInvestmentsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
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  <xs:element id="aep_SubLimitofSecuredDebt" abstract="false" name="SubLimitofSecuredDebt" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_SettlementAgreementAnnualIncreaseStepOne" abstract="false" name="SettlementAgreementAnnualIncreaseStepOne" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_AccruedReimbursementofSpentNuclearFuelCosts" abstract="false" name="AccruedReimbursementofSpentNuclearFuelCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_A2023AltTwoMajorStormExpenseDeferrals" abstract="false" name="A2023AltTwoMajorStormExpenseDeferrals" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_CedarCreekProjectMember" abstract="true" name="CedarCreekProjectMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SettlementAgreementReturnOnCommonEquity" abstract="false" name="SettlementAgreementReturnOnCommonEquity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="aep_PurchasedPowerCostRecoveries" abstract="false" name="PurchasedPowerCostRecoveries" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OhioTransmissionCompanyMember" abstract="true" name="OhioTransmissionCompanyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SolarGenerationMWs" abstract="false" name="SolarGenerationMWs" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:powerItemType"/>
  <xs:element id="aep_AffiliatedandNonaffiliatedMember" abstract="true" name="AffiliatedandNonaffiliatedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_EstimatedAlternativeCCRELGInvestment" abstract="false" name="EstimatedAlternativeCCRELGInvestment" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ImpactOfCashFlowHedgesOnBalanceSheetTextBlock" abstract="false" name="ImpactOfCashFlowHedgesOnBalanceSheetTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_VoluntarySeveranceProgramAbstract" abstract="true" name="VoluntarySeveranceProgramAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_StormRelatedCostsRecoveryRequestMember" abstract="true" name="StormRelatedCostsRecoveryRequestMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_March2023Member" abstract="true" name="March2023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_TermLoan5Member" abstract="true" name="TermLoan5Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AssetRetirementObligationMember" abstract="true" name="AssetRetirementObligationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ApprovedDeferralOfDoletHillsFuelCosts" abstract="false" name="ApprovedDeferralOfDoletHillsFuelCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_MaximumPercentagePaidToSellingAgents" abstract="false" name="MaximumPercentagePaidToSellingAgents" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_MaximumFuturePaymentsforLettersofCreditUncommittedFacilitiesTableTextBlock" abstract="false" name="MaximumFuturePaymentsforLettersofCreditUncommittedFacilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_SouthwesternElectricPowerCoMember" abstract="true" name="SouthwesternElectricPowerCoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_GenerationAndMarketingRevenuesMember" abstract="true" name="GenerationAndMarketingRevenuesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_WholesaleAndCompetitiveRetailMember" abstract="true" name="WholesaleAndCompetitiveRetailMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_RegulatoryAssetsCurrentlyNotEarningReturnMember" abstract="true" name="RegulatoryAssetsCurrentlyNotEarningReturnMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AEPSharePriceforEquityUnitConversion" abstract="false" name="AEPSharePriceforEquityUnitConversion" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:perShareItemType"/>
  <xs:element id="aep_SeniorUnsecuredNotesThreeMember" abstract="true" name="SeniorUnsecuredNotesThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_APCoPortionMember" abstract="true" name="APCoPortionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_PaymentTimingDomain" abstract="true" name="PaymentTimingDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_LongTermDebtAndOtherSecuritiesIssuedRetiredAndPrincipalPaymentsMadeAbstract" abstract="true" name="LongTermDebtAndOtherSecuritiesIssuedRetiredAndPrincipalPaymentsMadeAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
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  <xs:element id="aep_NetUncollectibleAccountsReceivableWrittenOff" abstract="false" name="NetUncollectibleAccountsReceivableWrittenOff" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_RestrictedStockUnitsandPerformanceShareUnitsMember" abstract="true" name="RestrictedStockUnitsandPerformanceShareUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_TransmissionOperationsMember" abstract="true" name="TransmissionOperationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ShareofNetInvestmentinDoletHillsPowerStation" abstract="false" name="ShareofNetInvestmentinDoletHillsPowerStation" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PirkeyPowerPlantAndSabineUnbilledFixedCosts" abstract="false" name="PirkeyPowerPlantAndSabineUnbilledFixedCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_OperatingLeaseCostRockport" abstract="false" name="OperatingLeaseCostRockport" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_PaymentWhenPutInServiceMember" abstract="true" name="PaymentWhenPutInServiceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_A2019EquityUnitsMember" abstract="true" name="A2019EquityUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_AffiliatedLongTermDebtNoncurrent" abstract="false" name="AffiliatedLongTermDebtNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AEPShareOfIndependenceEnergyConnectionCapitalCosts" abstract="false" name="AEPShareOfIndependenceEnergyConnectionCapitalCosts" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="aep_ProposedRateAdjustmentsDomain" abstract="true" name="ProposedRateAdjustmentsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OpinionRecommendedDisallowanceFactor" abstract="false" name="OpinionRecommendedDisallowanceFactor" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_AEPShareOfETTCumulativeRevenuesSubjectToReview" abstract="false" name="AEPShareOfETTCumulativeRevenuesSubjectToReview" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OtherLongTermDebtEighteenMember" abstract="true" name="OtherLongTermDebtEighteenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MitchellPowerPlantMember" abstract="true" name="MitchellPowerPlantMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
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  <xs:element id="aep_A2024AEPTexasBaseRateCaseMember" abstract="true" name="A2024AEPTexasBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_ContestedJointAgreementDistributionInvestmentsRecovery" abstract="false" name="ContestedJointAgreementDistributionInvestmentsRecovery" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_A2024WestVirginiaBaseRateCaseMember" abstract="true" name="A2024WestVirginiaBaseRateCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_PublicServiceCoOfOklahomaMember" abstract="true" name="PublicServiceCoOfOklahomaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_COVID19Member" abstract="true" name="COVID19Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ProposedAdjustmentsAxis" abstract="true" name="ProposedAdjustmentsAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_SecuritizedPurchasedPowerExpenses" abstract="false" name="SecuritizedPurchasedPowerExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_EstimatedReducedAnnualRevenues" abstract="false" name="EstimatedReducedAnnualRevenues" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AverageInterestRatesforFundsBorrowedFromandLoanedtoMoneyPoolAbstract" abstract="true" name="AverageInterestRatesforFundsBorrowedFromandLoanedtoMoneyPoolAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="aep_ALJRecommendedCustomerRefund" abstract="false" name="ALJRecommendedCustomerRefund" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SeniorUnsecuredNotesFiveMember" abstract="true" name="SeniorUnsecuredNotesFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_NetAmountsOfAssetsLiabilitiesPresentedInStatementOfFinancialPositionMember" abstract="true" name="NetAmountsOfAssetsLiabilitiesPresentedInStatementOfFinancialPositionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_OtherLongTermDebtEightMember" abstract="true" name="OtherLongTermDebtEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_TaxBenefitRecognizedFromTheReductionInExcessADITResultingFromIRSPLRReceived" abstract="false" name="TaxBenefitRecognizedFromTheReductionInExcessADITResultingFromIRSPLRReceived" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaxPotentialLossonMasterLeaseAgreementsTableTextBlock" abstract="false" name="MaxPotentialLossonMasterLeaseAgreementsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_RegulatoryAssetsCurrentlyEarningReturnMember" abstract="true" name="RegulatoryAssetsCurrentlyEarningReturnMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ExpensedRemainingClosedCoalPlant" abstract="false" name="ExpensedRemainingClosedCoalPlant" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_MaximumValueOfSharesToBeIssuedUnderATMProgram" abstract="false" name="MaximumValueOfSharesToBeIssuedUnderATMProgram" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AmountOfIncreaseRelatedToVegetationManagement" abstract="false" name="AmountOfIncreaseRelatedToVegetationManagement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_NotesPayableOtherPayableElevenMember" abstract="true" name="NotesPayableOtherPayableElevenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ConstructionStatusDomain" abstract="true" name="ConstructionStatusDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_OtherLongTermDebtFiveMember" abstract="true" name="OtherLongTermDebtFiveMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ProceedsForKYOperationsDomain" abstract="true" name="ProceedsForKYOperationsDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaturityOfNetFairValueOfRiskManagementContractsPriorToCashCollateralAssetsOrLiabilities" abstract="false" name="MaturityOfNetFairValueOfRiskManagementContractsPriorToCashCollateralAssetsOrLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AcquisitionOfNuclearFuelIncludedInCurrentLiabilities" abstract="false" name="AcquisitionOfNuclearFuelIncludedInCurrentLiabilities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_AffiliatedLongTermDebtCurrent" abstract="false" name="AffiliatedLongTermDebtCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_SettlementAgreementSecuritizationBondsRegulatoryAssetsRecovery" abstract="false" name="SettlementAgreementSecuritizationBondsRegulatoryAssetsRecovery" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_A2023KentuckyBaseRateAndSecuritizationCaseMember" abstract="true" name="A2023KentuckyBaseRateAndSecuritizationCaseMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_MaximumPercentageofConsolidatedTangibleNetAssets" abstract="false" name="MaximumPercentageofConsolidatedTangibleNetAssets" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="aep_LouisianaJurisdictionMember" abstract="true" name="LouisianaJurisdictionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_TrentandDesertSkyWindFarmsMember" abstract="true" name="TrentandDesertSkyWindFarmsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_PaymentTimingAxis" abstract="true" name="PaymentTimingAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_IndianaMember" abstract="true" name="IndianaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="aep_OtherRegulatoryAssetsNotYetBeingRecoveredMember" abstract="true" name="OtherRegulatoryAssetsNotYetBeingRecoveredMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_AdditionalRecognizedExpensesConsistingPrimarilyofDepreciationandVegetationManagement" abstract="false" name="AdditionalRecognizedExpensesConsistingPrimarilyofDepreciationandVegetationManagement" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ImpairmentChargeTotal" abstract="false" name="ImpairmentChargeTotal" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_RequestedSecuritizationBondsDeferredStormCosts" abstract="false" name="RequestedSecuritizationBondsDeferredStormCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ReclassificationIntoAccumulatedOtherComprehensiveIncomeAxis" abstract="true" name="ReclassificationIntoAccumulatedOtherComprehensiveIncomeAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_COVID19WestVirginiaMember" abstract="true" name="COVID19WestVirginiaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_EquityDistributionAgreementMember" abstract="true" name="EquityDistributionAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ContingenciesAxis" abstract="true" name="ContingenciesAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_RockFallsWindFacilityMember" abstract="true" name="RockFallsWindFacilityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_GainLossAxis" abstract="true" name="GainLossAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="aep_DerivativeNonmonetaryEnergyNotionalAmount" abstract="false" name="DerivativeNonmonetaryEnergyNotionalAmount" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types1:energyItemType"/>
  <xs:element id="aep_AcceleratedDepreciation" abstract="false" name="AcceleratedDepreciation" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_OtherTemporaryInvestmentsTextBlock" abstract="false" name="OtherTemporaryInvestmentsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:textBlockItemType"/>
  <xs:element id="aep_OtherLongTermDebtSixMember" abstract="true" name="OtherLongTermDebtSixMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_InterestRateForeignCurrencyHedgesMember" abstract="true" name="InterestRateForeignCurrencyHedgesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_SharesPerEquityUnit" abstract="false" name="SharesPerEquityUnit" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="aep_PurchasedElectricityForResaleMember" abstract="true" name="PurchasedElectricityForResaleMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="aep_ProvisionForRefundAffiliated" abstract="false" name="ProvisionForRefundAffiliated" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="aep_ALJRecommendedPurchasedPowerDisallowance" abstract="false" name="ALJRecommendedPurchasedPowerDisallowance" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
