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  <xs:element id="lnt_SharesOfStockIssuedShareownerDirectPlan" abstract="false" name="SharesOfStockIssuedShareownerDirectPlan" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
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  <xs:element id="lnt_PublicUtilitiesPropertyPlantAndEquipmentGeneral" abstract="false" name="PublicUtilitiesPropertyPlantAndEquipmentGeneral" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="lnt_ScheduleOfSummaryFinancialInformationTableTextBlockTableTextBlock" abstract="false" name="ScheduleOfSummaryFinancialInformationTableTextBlockTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
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  <xs:element id="lnt_CapitalLeasesLeaseRenewalPeriodOptions" abstract="false" name="CapitalLeasesLeaseRenewalPeriodOptions" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
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  <xs:element id="lnt_ThreePointOnePercentSeniorDebenturesDueTwoThousandFiftyOneMember" abstract="true" name="ThreePointOnePercentSeniorDebenturesDueTwoThousandFiftyOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="lnt_MLKappMember" abstract="true" name="MLKappMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_IplFercFormulaOtherProjectsMember" abstract="true" name="IplFercFormulaOtherProjectsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="lnt_CorporateVentureInvestmentsMember" abstract="true" name="CorporateVentureInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="lnt_LeasedLandForSolarGenerationMember" abstract="true" name="LeasedLandForSolarGenerationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_AnalogElectricMetersMember" abstract="true" name="AnalogElectricMetersMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_DefinedBenefitPlanAmountsRecognizedInRegulatoryAssetAndRegulatoryLiabilityAndOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" abstract="false" name="DefinedBenefitPlanAmountsRecognizedInRegulatoryAssetAndRegulatoryLiabilityAndOtherComprehensiveIncomeNetPriorServiceCostCreditBeforeTax" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="lnt_RedeemablePreferredStockByDividendRateDomain" abstract="true" name="RedeemablePreferredStockByDividendRateDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_ScheduleOfOpenTaxYearsByMajorTaxJurisdictionTableTextBlock" abstract="false" name="ScheduleOfOpenTaxYearsByMajorTaxJurisdictionTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
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  <xs:element id="lnt_PropertyPlantAndEquipmentNonregulatedBusinessLine2" abstract="false" name="PropertyPlantAndEquipmentNonregulatedBusinessLine2" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="lnt_DeferredProceedsOfReceivablesSold" abstract="false" name="DeferredProceedsOfReceivablesSold" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="lnt_ProductionTaxCreditsNetOfStateTaxImpacts" abstract="false" name="ProductionTaxCreditsNetOfStateTaxImpacts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="lnt_NumberOfCustomersWithoutPowerDerechoWindstorm" abstract="false" name="NumberOfCustomersWithoutPowerDerechoWindstorm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="lnt_CollectionsReinvestedInReceivables" abstract="false" name="CollectionsReinvestedInReceivables" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="lnt_DefinedBenefitPlanDueToBrokersNetMember" abstract="true" name="DefinedBenefitPlanDueToBrokersNetMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="lnt_PublicUtilitiesAllowanceForFundsUsedDuringConstructionReturnEarnedExpectedPercentageOfEstimatedConstructionWorkInProcessNextTwelveMonths" abstract="false" name="PublicUtilitiesAllowanceForFundsUsedDuringConstructionReturnEarnedExpectedPercentageOfEstimatedConstructionWorkInProcessNextTwelveMonths" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="lnt_ScheduleOfCorporateServicesBillingsTableTextBlock" abstract="false" name="ScheduleOfCorporateServicesBillingsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
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  <xs:element id="lnt_AlliantEnergyFinanceLLCMember" abstract="true" name="AlliantEnergyFinanceLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="lnt_JointlyOwnedUtilityPlantsDisclosureTextBlock" abstract="false" name="JointlyOwnedUtilityPlantsDisclosureTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="lnt_RecoveryRatesForProjectsWithApproval" abstract="false" name="RecoveryRatesForProjectsWithApproval" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="lnt_PublicUtilitiesPropertyPlantAndEquipmentLeased" abstract="false" name="PublicUtilitiesPropertyPlantAndEquipmentLeased" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="lnt_CommonStockPercentageInAssetsHeldSavingPlans" abstract="false" name="CommonStockPercentageInAssetsHeldSavingPlans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lnt_GenerationAndDistributionOfSteamNumberOfCustomersServed" abstract="false" name="GenerationAndDistributionOfSteamNumberOfCustomersServed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
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  <xs:element id="lnt_ScheduleOfCarryingValueAndFairMarketValueOfDeferredCompensationObligationTableTextBlock" abstract="false" name="ScheduleOfCarryingValueAndFairMarketValueOfDeferredCompensationObligationTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="lnt_ElectricCapacityOfWindProject" abstract="false" name="ElectricCapacityOfWindProject" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:powerItemType"/>
  <xs:element id="lnt_ScheduleOfCommonEquityLineItems" abstract="true" name="ScheduleOfCommonEquityLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="lnt_ScheduleOfSalesOfAccountsReceivableCashProceedsAndRelatedCostsTableTextBlock" abstract="false" name="ScheduleOfSalesOfAccountsReceivableCashProceedsAndRelatedCostsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
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  <xs:element id="lnt_StatuteofLimitationsExpirationPeriodfromExtendedDueDateofIowaTaxReturn" abstract="false" name="StatuteofLimitationsExpirationPeriodfromExtendedDueDateofIowaTaxReturn" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lnt_FourPointTwoFivePercentSeniorNotesDueTwoThousandAndTwentyEightMember" abstract="true" name="FourPointTwoFivePercentSeniorNotesDueTwoThousandAndTwentyEightMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_OtherCommonStockActivity" abstract="false" name="OtherCommonStockActivity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lnt_TwoThousandTwentyTestPeriodRetailElectricMember" abstract="true" name="TwoThousandTwentyTestPeriodRetailElectricMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_SixPointThreeSevenFivePercentDebentureDueTwoThousandThirtySevenMember" abstract="true" name="SixPointThreeSevenFivePercentDebentureDueTwoThousandThirtySevenMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_CommonStockOustandingRollForward" abstract="true" name="CommonStockOustandingRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="lnt_ScheduleOfCorporateServicesIntercompanyPayablesTableTextBlock" abstract="false" name="ScheduleOfCorporateServicesIntercompanyPayablesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="lnt_AccumulatedDepreciationOnPropertyPlantAndEquipmentNonRegulatedBusinessLine1" abstract="false" name="AccumulatedDepreciationOnPropertyPlantAndEquipmentNonRegulatedBusinessLine1" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lnt_PublicUtilitiesPropertyPlantAndEquipmentGas" abstract="false" name="PublicUtilitiesPropertyPlantAndEquipmentGas" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lnt_ScheduleOfAdditionalAttributesOfReceivablesSoldUnderAgreementTableTextBlock" abstract="false" name="ScheduleOfAdditionalAttributesOfReceivablesSoldUnderAgreementTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="lnt_SharesAvailableForIssuancePursuantToVariousPlans" abstract="false" name="SharesAvailableForIssuancePursuantToVariousPlans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="lnt_CorporateServicesMember" abstract="true" name="CorporateServicesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="lnt_EffectiveTaxRateTable" abstract="true" name="EffectiveTaxRateTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="lnt_EffectiveIncomeTaxRateReconciliationAmortizationOfExcessDeferredTaxes" abstract="false" name="EffectiveIncomeTaxRateReconciliationAmortizationOfExcessDeferredTaxes" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lnt_SaleofAccountsReceivableProgramCapacityAvailable" abstract="false" name="SaleofAccountsReceivableProgramCapacityAvailable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="lnt_TwoThousandTwentyTestPeriodRetailGasMember" abstract="true" name="TwoThousandTwentyTestPeriodRetailGasMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_RestrictedStockUnitLiabilityAwardMember" abstract="true" name="RestrictedStockUnitLiabilityAwardMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_InvestmentsBusinessLine1" abstract="false" name="InvestmentsBusinessLine1" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lnt_FinancialTransmissionRightsMember" abstract="true" name="FinancialTransmissionRightsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_IplSTaxBenefitRiderMember" abstract="true" name="IplSTaxBenefitRiderMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_OmnibusIncentivePlanMember" abstract="true" name="OmnibusIncentivePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_NetDerivativeAssetsAndLiabilitiesTableTextBlock" abstract="false" name="NetDerivativeAssetsAndLiabilitiesTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="lnt_LesseeFinanceLeaseDisclosureTableTextBlock" abstract="false" name="LesseeFinanceLeaseDisclosureTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="lnt_BenefitPlansLineItems" abstract="true" name="BenefitPlansLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="lnt_LongtermContractforPurchaseofElectricPowerBuyoutPayment" abstract="false" name="LongtermContractforPurchaseofElectricPowerBuyoutPayment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lnt_WplBillingsToAtcMember" abstract="true" name="WplBillingsToAtcMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_SixPointThreePercentSeniorDebenturesDueTwoThousandThirtyFourMember" abstract="true" name="SixPointThreePercentSeniorDebenturesDueTwoThousandThirtyFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_TermLoanCreditAgreementMember" abstract="true" name="TermLoanCreditAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_OtherEquityMethodInvestmentsMember" abstract="true" name="OtherEquityMethodInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_DefinedBenefitPlanRegulatoryAssetAllocatedFromCorporateServices" abstract="false" name="DefinedBenefitPlanRegulatoryAssetAllocatedFromCorporateServices" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lnt_ElectricGeneratingUnitsRetiredEarlyTableTextBlock" abstract="false" name="ElectricGeneratingUnitsRetiredEarlyTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="lnt_CustomerAccountsReceivableSoldAmount" abstract="false" name="CustomerAccountsReceivableSoldAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lnt_PensionAndOtherPostretirementDefinedBenefitPlansNonCurrentAssets" abstract="false" name="PensionAndOtherPostretirementDefinedBenefitPlansNonCurrentAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="lnt_SheboyganPowerLlcMember" abstract="true" name="SheboyganPowerLlcMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_ColumbiaUnitsOneAndTwoMember" abstract="true" name="ColumbiaUnitsOneAndTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_RegulatoryMattersLineItems" abstract="true" name="RegulatoryMattersLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="lnt_IPLfercformulawindgenerationMember" abstract="true" name="IPLfercformulawindgenerationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_DefinedBenefitPensionAndOtherPostretirementBenefitsPlansTotalPlanAssetsPercentageOnCommonStock" abstract="false" name="DefinedBenefitPensionAndOtherPostretirementBenefitsPlansTotalPlanAssetsPercentageOnCommonStock" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lnt_VestedPercentageOfTarget" abstract="false" name="VestedPercentageOfTarget" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lnt_BenefitPlansTable" abstract="true" name="BenefitPlansTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="lnt_CostOfRemovalObligationsMember" abstract="true" name="CostOfRemovalObligationsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_LongtermContractforPurchaseofElectricPowerContractTermAmendment" abstract="false" name="LongtermContractforPurchaseofElectricPowerContractTermAmendment" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lnt_SutherlandUnitsOneAndThreeMember" abstract="true" name="SutherlandUnitsOneAndThreeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_GlobalAssetAllocationSecuritiesMember" abstract="true" name="GlobalAssetAllocationSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_ThreePointSevenPercentSeniorDebenturesDueTwoThousandFortySixMember" abstract="true" name="ThreePointSevenPercentSeniorDebenturesDueTwoThousandFortySixMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_DeferredCompensationPlanBaseSalaryAndIncentiveCompensationPercentage" abstract="false" name="DeferredCompensationPlanBaseSalaryAndIncentiveCompensationPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="lnt_FossilFueledEnergyGeneratingUnitsCapacity" abstract="false" name="FossilFueledEnergyGeneratingUnitsCapacity" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:powerItemType"/>
  <xs:element id="lnt_ScheduleOfOperatingLeaseDetailsTableTextBlock" abstract="false" name="ScheduleOfOperatingLeaseDetailsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="lnt_ScheduleOfCommonEquityTable" abstract="true" name="ScheduleOfCommonEquityTable" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType"/>
  <xs:element id="lnt_ThreePointSixPercentSeniorDebenturesDueTwoThousandTwentyNineMember" abstract="true" name="ThreePointSixPercentSeniorDebenturesDueTwoThousandTwentyNineMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_UtilityBusinessMember" abstract="true" name="UtilityBusinessMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_OnePointFourPercentSeniorNotesDueTwoThousandTwentySixMember" abstract="true" name="OnePointFourPercentSeniorNotesDueTwoThousandTwentySixMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_ScheduleOfEstimatedFutureEmployerContributionsTableTextBlock" abstract="false" name="ScheduleOfEstimatedFutureEmployerContributionsTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="lnt_StatuteofLimitationsExpirationPeriodfromExtendedDueDateofWisconsinTaxReturn" abstract="false" name="StatuteofLimitationsExpirationPeriodfromExtendedDueDateofWisconsinTaxReturn" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="lnt_CreditLossesNetOfRecoveries" abstract="false" name="CreditLossesNetOfRecoveries" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="lnt_NewAccountingPronouncementImpactPretax" abstract="false" name="NewAccountingPronouncementImpactPretax" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="lnt_DefinedBenefitPlanAmountsRecognizedInRegulatoryAssetsRegulatoryLiabilitiesAndAccumulatedOtherComprehensiveIncomeLossAbstract" abstract="true" name="DefinedBenefitPlanAmountsRecognizedInRegulatoryAssetsRegulatoryLiabilitiesAndAccumulatedOtherComprehensiveIncomeLossAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
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  <xs:element id="lnt_ATCHoldcoLLCMember" abstract="true" name="ATCHoldcoLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_CommercialPaperAbstract" abstract="true" name="CommercialPaperAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="lnt_OtherLongTermDebtMiscellaneousMember" abstract="true" name="OtherLongTermDebtMiscellaneousMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_TwoPointTwoFivePercentDebentureDueTwoThousandTwentyMember" abstract="true" name="TwoPointTwoFivePercentDebentureDueTwoThousandTwentyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_RetailCommercialMember" abstract="true" name="RetailCommercialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_DAECPPAMember" abstract="true" name="DAECPPAMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="lnt_TaxRelatedMember" abstract="true" name="TaxRelatedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
