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  <xsd:element id="lnt_CashProceedsFromReceivablesSold" name="CashProceedsFromReceivablesSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_CedarRidgeWindProjectMember" name="CedarRidgeWindProjectMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_CivilPenaltyMember" name="CivilPenaltyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_CoalMember" name="CoalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_CoalTonsMember" name="CoalTonsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_CollectionsReinvestedInReceivables" name="CollectionsReinvestedInReceivables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_CommercialPaperAbstract" name="CommercialPaperAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_CommodityCostRecoveryMember" name="CommodityCostRecoveryMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_CommonEquityLineItems" name="CommonEquityLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_CommonEquityTable" name="CommonEquityTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_CommonStockClosingPrice" name="CommonStockClosingPrice" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_CommonStockClosingPriceGrantDate" name="CommonStockClosingPriceGrantDate" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_CommonStockHeldInTrustShares" name="CommonStockHeldInTrustShares" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element id="lnt_CommonStockHeldInTrustWeightedAverageValuePerShare" name="CommonStockHeldInTrustWeightedAverageValuePerShare" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_CommonStockOustandingRollForward" name="CommonStockOustandingRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_ConstructionWorkInProgressAbstract" name="ConstructionWorkInProgressAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ConstructionWorkInProgressBusinessLine4" name="ConstructionWorkInProgressBusinessLine4" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lnt_ConstructionWorkInProgressBusinessLine5" name="ConstructionWorkInProgressBusinessLine5" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lnt_ConstructionWorkInProgressBusinessLine6" name="ConstructionWorkInProgressBusinessLine6" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lnt_ConstructionWorkInProgressOther" name="ConstructionWorkInProgressOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_CorporateServiceBillingsMember" name="CorporateServiceBillingsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_CostElectricProductionFuelAndEnergyPurchases" name="CostElectricProductionFuelAndEnergyPurchases" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lnt_CostIncurredOnSaleOfReceivables" name="CostIncurredOnSaleOfReceivables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lnt_CostOfGasSold" name="CostOfGasSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_CostOfRemovalObligationsMember" name="CostOfRemovalObligationsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_CostPurchasedElectricCapacity" name="CostPurchasedElectricCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lnt_CreditLossesNetOfRecoveries" name="CreditLossesNetOfRecoveries" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lnt_CreditToUtilityOtherOperationAndMaintenance" name="CreditToUtilityOtherOperationAndMaintenance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lnt_CustomerAccountsReceivableSoldAmount" name="CustomerAccountsReceivableSoldAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_DaecIplMember" name="DaecIplMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_DamagesToBePaidOutOfCommonFund" name="DamagesToBePaidOutOfCommonFund" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_DebtDisclosureLineItems" name="DebtDisclosureLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_DebtDisclosureTable" name="DebtDisclosureTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_DeferredChargesRegulatoryAssetsAndOtherAssetsNoncurrent" name="DeferredChargesRegulatoryAssetsAndOtherAssetsNoncurrent" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_DeferredChargesRegulatoryAssetsAndOtherAssetsNoncurrentAbstract" name="DeferredChargesRegulatoryAssetsAndOtherAssetsNoncurrentAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_DeferredIncomeTaxAssetsMember" name="DeferredIncomeTaxAssetsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_DeferredProceedsOfReceivablesSold" name="DeferredProceedsOfReceivablesSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_DeferredProceedsOfReceivablesSoldMember" name="DeferredProceedsOfReceivablesSoldMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_DeferredTaxAssetsLiabilitiesAxis" name="DeferredTaxAssetsLiabilitiesAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_DeferredTaxAssetsLiabilitiesDomain" name="DeferredTaxAssetsLiabilitiesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_DefinedBenefitPlanPensionAndOtherPostretirementBenefitsPlansCostsAllocatedFromCorporateServices" name="DefinedBenefitPlanPensionAndOtherPostretirementBenefitsPlansCostsAllocatedFromCorporateServices" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lnt_DepreciationAndAmortizationCashFlow" name="DepreciationAndAmortizationCashFlow" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_DerivativeNonMonetaryNotionalAmountYearFiveMember" name="DerivativeNonMonetaryNotionalAmountYearFiveMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_DerivativeNonMonetaryNotionalAmountYearFourMember" name="DerivativeNonMonetaryNotionalAmountYearFourMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_DerivativeNonMonetaryNotionalAmountYearOneMember" name="DerivativeNonMonetaryNotionalAmountYearOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_DerivativeNonMonetaryNotionalAmountYearSixMember" name="DerivativeNonMonetaryNotionalAmountYearSixMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_DerivativeNonMonetaryNotionalAmountYearThreeMember" name="DerivativeNonMonetaryNotionalAmountYearThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_DerivativeNonMonetaryNotionalAmountYearTwoMember" name="DerivativeNonMonetaryNotionalAmountYearTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_DisposalGroupIncludingDiscontinuedOperationInterestExpenseAndOther" name="DisposalGroupIncludingDiscontinuedOperationInterestExpenseAndOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_EffectiveIncomeTaxRateReconciliationEffectOfRateMakingOnPropertyRelatedDifferences" name="EffectiveIncomeTaxRateReconciliationEffectOfRateMakingOnPropertyRelatedDifferences" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_EffectiveIncomeTaxRateReconciliationTaxBenefitRider" name="EffectiveIncomeTaxRateReconciliationTaxBenefitRider" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_EffectiveTaxRateLineItems" name="EffectiveTaxRateLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_EffectiveTaxRateTable" name="EffectiveTaxRateTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_EightPointThreeSevenFivePercentageMember" name="EightPointThreeSevenFivePercentageMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ElectricCapacityOfWindProject" name="ElectricCapacityOfWindProject" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_ElectricMember" name="ElectricMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_ElectricTaxBenefitRiderMember" name="ElectricTaxBenefitRiderMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_ElectricityMwhsMember" name="ElectricityMwhsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_EmissionAllowancesMember" name="EmissionAllowancesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_EmployeeBenefitPlansDisclosureTextBlock" name="EmployeeBenefitPlansDisclosureTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_EmployeeServiceShareBasedCompensationFairValuesOfEachNonvestedAwards" name="EmployeeServiceShareBasedCompensationFairValuesOfEachNonvestedAwards" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_EnergyConservationCostRecoveryMember" name="EnergyConservationCostRecoveryMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_EnvironmentalRelatedMember" name="EnvironmentalRelatedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_EstimatedPayoutPercentage" name="EstimatedPayoutPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_ExcludingFinancialTransmissionRightsMember" name="ExcludingFinancialTransmissionRightsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_FairValueAssetsAndLiabilitiesNetMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" name="FairValueAssetsAndLiabilitiesNetMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_FairValueOfDeferredProceedsOfReceivablesSold" name="FairValueOfDeferredProceedsOfReceivablesSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_FinancialTransmissionRightsMember" name="FinancialTransmissionRightsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_FivePointOnePercentageMember" name="FivePointOnePercentageMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_FourPointFourZeroPercentMember" name="FourPointFourZeroPercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_FourPointFourZeroPercentThroughSixPointFiveZeroPercentMember" name="FourPointFourZeroPercentThroughSixPointFiveZeroPercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_FourPointSevenPercentDomain" name="FourPointSevenPercentDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_FranklinCountyWindProjectMember" name="FranklinCountyWindProjectMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_FtrsMwsMember" name="FtrsMwsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_GasMember" name="GasMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_GasTaxBenefitRiderMember" name="GasTaxBenefitRiderMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_IncomeTaxLineItems" name="IncomeTaxLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_IncomeTaxTable" name="IncomeTaxTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_IncreaseDecreaseInDeferredIncomeTaxesNoncurrentLiabilities" name="IncreaseDecreaseInDeferredIncomeTaxesNoncurrentLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lnt_IncreaseInAnnualRatesForItsCustomersAmount" name="IncreaseInAnnualRatesForItsCustomersAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lnt_IncreaseInAnnualRatesForItsCustomersPercentage" name="IncreaseInAnnualRatesForItsCustomersPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_IncreaseInInterimRatesForItsCustomersAmount" name="IncreaseInInterimRatesForItsCustomersAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lnt_IncreaseInInterimRatesForItsCustomersPercentage" name="IncreaseInInterimRatesForItsCustomersPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_IndividualCommitmentsIncurred" name="IndividualCommitmentsIncurred" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lnt_InterestCreditingRate" name="InterestCreditingRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_InvestmentsBusinessLine1" name="InvestmentsBusinessLine1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lnt_InvestmentsTextBlock" name="InvestmentsTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_IplElectricTransmissionAssetsSaleMember" name="IplElectricTransmissionAssetsSaleMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_IplFercFormulaOtherProjectsMember" name="IplFercFormulaOtherProjectsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_IplMember" name="IplMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_IplSTaxBenefitRiderMember" name="IplSTaxBenefitRiderMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_JudgmentOfDamagesByCourtMaximum" name="JudgmentOfDamagesByCourtMaximum" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_KewauneeWplMember" name="KewauneeWplMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_LongTermDebtWeightedAverageRemainingMaturity" name="LongTermDebtWeightedAverageRemainingMaturity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_LongTermPurchaseCommitmentApprovedAmountOfElectricPowerCapacity" name="LongTermPurchaseCommitmentApprovedAmountOfElectricPowerCapacity" nillable="true" substitutionGroup="xbrli:item" type="num:powerItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_LongTermPurchaseCommitmentOperatingExpensesPurchaseObligationTableTextBlock" name="LongTermPurchaseCommitmentOperatingExpensesPurchaseObligationTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_LossContingencyDamagesSoughtValueAmountOfPlaintiffsAttorneyFeesOrCosts" name="LossContingencyDamagesSoughtValueAmountOfPlaintiffsAttorneyFeesOrCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lnt_LossContingencyNumberOfNewSubclassesCertifiedAsResultOfCourtOpinionAndOrder" name="LossContingencyNumberOfNewSubclassesCertifiedAsResultOfCourtOpinionAndOrder" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_ManufacturedGasPlantSitesMember" name="ManufacturedGasPlantSitesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_MaximumRemainingEstimatedCostIncurredForInvestigationRemediationAndMonitoring" name="MaximumRemainingEstimatedCostIncurredForInvestigationRemediationAndMonitoring" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lnt_MinimumRemainingEstimatedCostIncurredForInvestigationRemediationAndMonitoring" name="MinimumRemainingEstimatedCostIncurredForInvestigationRemediationAndMonitoring" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_NaturalGasDthsMember" name="NaturalGasDthsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_NaturalGasMember" name="NaturalGasMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_NelsondeweyMember" name="NelsondeweyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_NetUtilityPlant" name="NetUtilityPlant" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_NotionalAmountOfDerivativesLineItems" name="NotionalAmountOfDerivativesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_NumberOfBoardMembersToBeElected" name="NumberOfBoardMembersToBeElected" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_NumberOfQuarterlyDividendRequirements" name="NumberOfQuarterlyDividendRequirements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_NumberofCounterpartiesExceedingDerivativeAssetPosition" name="NumberofCounterpartiesExceedingDerivativeAssetPosition" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_Numberofsitesremediatingandmonitoring" name="Numberofsitesremediatingandmonitoring" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_OffsettingAssetsAndLiabilitiesTableTextBlock" name="OffsettingAssetsAndLiabilitiesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_OtherCommonStockActivity" name="OtherCommonStockActivity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_OtherEquityMethodInvestmentsMember" name="OtherEquityMethodInvestmentsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_OtherLiabilitiesAndDeferredCreditsNoncurrentAbstract" name="OtherLiabilitiesAndDeferredCreditsNoncurrentAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_OtherLongTermInvestmentsAndMarketableSecurities" name="OtherLongTermInvestmentsAndMarketableSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_OtherPropertyAndEquipmentAbstract" name="OtherPropertyAndEquipmentAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_OtherReceivablesSoldAmount" name="OtherReceivablesSoldAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_OtherUtilityMember" name="OtherUtilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_OutstandingReceivablesPastDue" name="OutstandingReceivablesPastDue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lnt_OverCollectionOfRetailFuelRelatedCosts" name="OverCollectionOfRetailFuelRelatedCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lnt_PaymentsToAcquireProductiveAssetsBusinessLine1" name="PaymentsToAcquireProductiveAssetsBusinessLine1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lnt_PaymentsToAcquireProductiveAssetsBusinessLine2" name="PaymentsToAcquireProductiveAssetsBusinessLine2" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_PensionAndOtherPostretirementBenefitsMember" name="PensionAndOtherPostretirementBenefitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_PerformaceCriteriaNotMetMember" name="PerformaceCriteriaNotMetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_PerformanceContingentCashAwardsMember" name="PerformanceContingentCashAwardsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_PerformanceContingentRestrictedStockMember" name="PerformanceContingentRestrictedStockMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_PerformanceCriteraStatusAxis" name="PerformanceCriteraStatusAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_PerformanceCriteraStatusDomain" name="PerformanceCriteraStatusDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_PerformanceGuaranteesOutstanding" name="PerformanceGuaranteesOutstanding" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_PerformanceGuaranteesOutstandingByExpirationPeriodAxis" name="PerformanceGuaranteesOutstandingByExpirationPeriodAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_PerformanceGuaranteesOutstandingByExpirationPeriodDomain" name="PerformanceGuaranteesOutstandingByExpirationPeriodDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_PerformanceGuaranteesOutstandingYearOneMember" name="PerformanceGuaranteesOutstandingYearOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_PerformanceGuaranteesOutstandingYearThreeMember" name="PerformanceGuaranteesOutstandingYearThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_PerformanceGuaranteesOutstandingYearTwoMember" name="PerformanceGuaranteesOutstandingYearTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_PerformanceUnitsAdjustmentForPerformanceMultiplierRangeMaximum" name="PerformanceUnitsAdjustmentForPerformanceMultiplierRangeMaximum" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_PerformanceUnitsAdjustmentForPerformanceMultiplierRangeMinimum" name="PerformanceUnitsAdjustmentForPerformanceMultiplierRangeMinimum" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_PerformanceUnitsMember" name="PerformanceUnitsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_PreferredStockFairValue" name="PreferredStockFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="lnt_PresentValueAbandonmentObligation" name="PresentValueAbandonmentObligation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="lnt_ProceedsFromCashGrant" name="ProceedsFromCashGrant" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_ProductionTaxCreditsLineItems" name="ProductionTaxCreditsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ProductionTaxCreditsNetOfStateTaxImpacts" name="ProductionTaxCreditsNetOfStateTaxImpacts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="lnt_ProductionTaxCreditsNetOfStateTaxImpactsTableTextBlock" name="ProductionTaxCreditsNetOfStateTaxImpactsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_PropertyPlantAndEquipmentNonregulatedBusinessLine1" name="PropertyPlantAndEquipmentNonregulatedBusinessLine1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lnt_PropertyPlantAndEquipmentNonregulatedBusinessLine2" name="PropertyPlantAndEquipmentNonregulatedBusinessLine2" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lnt_PublicUtilitiesGasTaxBenefitRiderTerm" name="PublicUtilitiesGasTaxBenefitRiderTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_PublicUtilitiesPropertyPlantAndEquipmentElectric" name="PublicUtilitiesPropertyPlantAndEquipmentElectric" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lnt_PublicUtilitiesPropertyPlantAndEquipmentGas" name="PublicUtilitiesPropertyPlantAndEquipmentGas" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lnt_PublicUtilitiesPropertyPlantAndEquipmentGeneral" name="PublicUtilitiesPropertyPlantAndEquipmentGeneral" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lnt_PublicUtilitiesPropertyPlantAndEquipmentLeased" name="PublicUtilitiesPropertyPlantAndEquipmentLeased" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="lnt_PublicUtilitiesRefundToCustomersIncludingInterest" name="PublicUtilitiesRefundToCustomersIncludingInterest" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_PurchasedPowerMember" name="PurchasedPowerMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_RateOfFuelCostsCapacity" name="RateOfFuelCostsCapacity" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ReceivablesSold" name="ReceivablesSold" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_RedeemablePreferredStockByDividendRateAxis" name="RedeemablePreferredStockByDividendRateAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_RedeemablePreferredStockByDividendRateDomain" name="RedeemablePreferredStockByDividendRateDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ReductionInAnnualRatesForItsCustomersAmount" name="ReductionInAnnualRatesForItsCustomersAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="lnt_ReductionInAnnualRatesForItsCustomersPercentage" name="ReductionInAnnualRatesForItsCustomersPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_RegulatoryAssetsAndLiabilitiesPolicyTextBlock" name="RegulatoryAssetsAndLiabilitiesPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_RegulatoryAssetsMember" name="RegulatoryAssetsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_RegulatoryLiabilitiesMember" name="RegulatoryLiabilitiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_ResourcesMember" name="ResourcesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_RetailRequestAxis" name="RetailRequestAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_RetailRequestDomain" name="RetailRequestDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_RetailRequestTable" name="RetailRequestTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_RevenueRequirementAdjustmentMember" name="RevenueRequirementAdjustmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_RmtMember" name="RmtMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ScheduleOfAdditionalAttributesOfReceivablesSoldUnderAgreementTableTextBlock" name="ScheduleOfAdditionalAttributesOfReceivablesSoldUnderAgreementTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_ScheduleOfAssetRetirementObligationsLineItems" name="ScheduleOfAssetRetirementObligationsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ScheduleOfAtcBillingsTableTextBlock" name="ScheduleOfAtcBillingsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ScheduleOfCorporateServicesBillingsTableTextBlock" name="ScheduleOfCorporateServicesBillingsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ScheduleOfCorporateServicesIntercompanyPayablesTableTextBlock" name="ScheduleOfCorporateServicesIntercompanyPayablesTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsAssetsAndLiabilitiesAndAdditionalDisclosuresTableTextBlock" name="ScheduleOfDisposalGroupsIncludingDiscontinuedOperationsAssetsAndLiabilitiesAndAdditionalDisclosuresTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ScheduleOfEstimatedFutureEmployerContributionsTableTextBlock" name="ScheduleOfEstimatedFutureEmployerContributionsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_ScheduleOfNotionalAmountOfDerivativesTable" name="ScheduleOfNotionalAmountOfDerivativesTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ScheduleOfQualifiedAndNonQualifiedPensionBenefitCostsAndOtherPostRetirementBenefitCostsTableTextBlock" name="ScheduleOfQualifiedAndNonQualifiedPensionBenefitCostsAndOtherPostRetirementBenefitCostsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ScheduleOfSalesOfAccountsReceivableCashProceedsAndRelatedCostsTableTextBlock" name="ScheduleOfSalesOfAccountsReceivableCashProceedsAndRelatedCostsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ScheduleOfSalesOfAccountsReceivableSoldUnderAgreementTableTextBlock" name="ScheduleOfSalesOfAccountsReceivableSoldUnderAgreementTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ScheduleOfScoaSalesCreditedAndPurchasesBilledTableTextBlock" name="ScheduleOfScoaSalesCreditedAndPurchasesBilledTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ScheduleOfSummaryFinancialInformationTableTextBlock" name="ScheduleOfSummaryFinancialInformationTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_ScoaPurchasesBilledMember" name="ScoaPurchasesBilledMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_ScoaSalesCreditedMember" name="ScoaSalesCreditedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_SeniorDebenturesMember" name="SeniorDebenturesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_ShortTermDebtWeightedAverageRemainingMaturity" name="ShortTermDebtWeightedAverageRemainingMaturity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_SixPointFiveZeroPercentMember" name="SixPointFiveZeroPercentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_SixthStreetMember" name="SixthStreetMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_So2EmissionAllowancesMember" name="So2EmissionAllowancesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_StateApportionmentMember" name="StateApportionmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_StautueOfLimitationsDistributions" name="StautueOfLimitationsDistributions" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_TaxRelatedMember" name="TaxRelatedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_TemporaryEquityAndPreferredStockCarryingAmount" name="TemporaryEquityAndPreferredStockCarryingAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="lnt_TemporaryEquityAndPreferredStockFairValue" name="TemporaryEquityAndPreferredStockFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="lnt_TemporaryEquityFairValue" name="TemporaryEquityFairValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="lnt_TotalDeferredCreditsAndOtherLiabilities" name="TotalDeferredCreditsAndOtherLiabilities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_TotalsMember" name="TotalsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_TwoThousandElevenGrantMember" name="TwoThousandElevenGrantMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_TwoThousandElevenTestYearRetailGasRequestIaMember" name="TwoThousandElevenTestYearRetailGasRequestIaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_TwoThousandElevenTestYearRetailGasSettlementIaMember" name="TwoThousandElevenTestYearRetailGasSettlementIaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_TwoThousandFourteenTestYearRetailElectricFuelRelatedRequestMember" name="TwoThousandFourteenTestYearRetailElectricFuelRelatedRequestMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_TwoThousandThirteenAndFourteenTestPeriodRetailElectricAndGasFinalOrderMember" name="TwoThousandThirteenAndFourteenTestPeriodRetailElectricAndGasFinalOrderMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_TwoThousandThirteenAndFourteenTestPeriodRetailElectricAndGasRateRequestMember" name="TwoThousandThirteenAndFourteenTestPeriodRetailElectricAndGasRateRequestMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_TwoThousandThirteenMember" name="TwoThousandThirteenMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_TwoThousandThirteenTestYearRetailElectricFuelRelatedFinalOrderMember" name="TwoThousandThirteenTestYearRetailElectricFuelRelatedFinalOrderMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_TwoThousandThirteenTestYearRetailElectricFuelRelatedRequestMember" name="TwoThousandThirteenTestYearRetailElectricFuelRelatedRequestMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_TwoThousandTwelveGrantMember" name="TwoThousandTwelveGrantMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_TwoThousandTwelveTestYearRetailElectricFuelRelatedRequestFinalOrderMember" name="TwoThousandTwelveTestYearRetailElectricFuelRelatedRequestFinalOrderMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_UnbilledUtilityRevenuesSoldAmount" name="UnbilledUtilityRevenuesSoldAmount" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_UtilityBusinessMember" name="UtilityBusinessMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_UtilityRateCasesLineItems" name="UtilityRateCasesLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_VestedPercentageOfTarget" name="VestedPercentageOfTarget" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_WarrantyPeriod" name="WarrantyPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_WeightedAverageInterestRateShortTermDebt" name="WeightedAverageInterestRateShortTermDebt" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_WhisperingWillowEastWindProjectMember" name="WhisperingWillowEastWindProjectMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_WholesalePowerSupplyAgreementTerm" name="WholesalePowerSupplyAgreementTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_WholesalePowerSupplyAgreementTerminationNoticeTerm" name="WholesalePowerSupplyAgreementTerminationNoticeTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="lnt_WindProjectsGeneratingProductionTaxCredits" name="WindProjectsGeneratingProductionTaxCredits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="lnt_WplBillingsToAtcMember" name="WplBillingsToAtcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_WplMember" name="WplMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_WplOwedAtcMember" name="WplOwedAtcMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="lnt_WplSEdgewaterUnitFivePurchaseMember" name="WplSEdgewaterUnitFivePurchaseMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
