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  <xsd:element abstract="true" id="itri_CoreDevelopedTechnologyMember" name="CoreDevelopedTechnologyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_CreditFacilityAdditionalInformationAbstract" name="CreditFacilityAdditionalInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_CreditFacilityMember" name="CreditFacilityMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_CustomerAMember" name="CustomerAMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_CustomerBMember" name="CustomerBMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_CustomerCMember" name="CustomerCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_CustomerContractsAndRelationshipsMember" name="CustomerContractsAndRelationshipsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_DeferredRevenueCurrencyTranslationIncreaseDecrease" name="DeferredRevenueCurrencyTranslationIncreaseDecrease" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="itri_DefinedBenefitPlanSettlementAndOtherBenefitCosts" name="DefinedBenefitPlanSettlementAndOtherBenefitCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="itri_DepreciationAndAmortizationExpenseAssociatedWithSegmentsTableTextBlock" name="DepreciationAndAmortizationExpenseAssociatedWithSegmentsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_DepreciationAndAmortizationExpenseBySegmentAbstract" name="DepreciationAndAmortizationExpenseBySegmentAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_DepreciationExpenseTableTextBlock" name="DepreciationExpenseTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_DerivativeActivityVolumeTypeAxis" name="DerivativeActivityVolumeTypeAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_DerivativeActivityVolumeTypeDomain" name="DerivativeActivityVolumeTypeDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_DerivativeCounterparties" name="DerivativeCounterparties" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="itri_DerivativeFinancialInstrumentsAbstract" name="DerivativeFinancialInstrumentsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_DerivativePurchasePrice" name="DerivativePurchasePrice" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="itri_DisposalGroupincludingdiscontinuedoperationsForeignCurrencyTranslationGainsLossestaxprovisionbenefit" name="DisposalGroupincludingdiscontinuedoperationsForeignCurrencyTranslationGainsLossestaxprovisionbenefit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_DocumentInformationAbstract" name="DocumentInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_EURIBORMember" name="EURIBORMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_Effectsofchangeinexchangerates" name="Effectsofchangeinexchangerates" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_ElectricityOperatingSegmentMember" name="ElectricityOperatingSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_EstimatedCostToCompleteInProcessResearchAndDevelopmentProjects" name="EstimatedCostToCompleteInProcessResearchAndDevelopmentProjects" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="itri_Estimatedtimeinmonthstocompleteinprocessresearchanddevelopment" name="Estimatedtimeinmonthstocompleteinprocessresearchanddevelopment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="itri_ExpectedToVestMember" name="ExpectedToVestMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_ExtendedWarrantyMember" name="ExtendedWarrantyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_GasOperatingSegmentMember" name="GasOperatingSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_GoodwillExcludingNonGoodwillIntangiblesAbstract" name="GoodwillExcludingNonGoodwillIntangiblesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_GrossProfitMember" name="GrossProfitMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_HealthBenefitPlanCostsAndIncurredButNotReportedAccrualBalanceTableTextBlock" name="HealthBenefitPlanCostsAndIncurredButNotReportedAccrualBalanceTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_InsuranceRecoverynetoftaxMember" name="InsuranceRecoverynetoftaxMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_IntangibleAssetsAbstract" name="IntangibleAssetsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_LineofCreditFacilityRemainingcapacitytosupportlettersofcredit" name="LineofCreditFacilityRemainingcapacitytosupportlettersofcredit" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="itri_LongTermPerformanceRestrictedStockAwardMember" name="LongTermPerformanceRestrictedStockAwardMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_MachineryAndEquipmentGross1" name="MachineryAndEquipmentGross1" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="itri_NumberOfCounterpartiesMember" name="NumberOfCounterpartiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_OtherCountriesMember" name="OtherCountriesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_OtherIncomeExpenseMember" name="OtherIncomeExpenseMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_RestructuringProjectLineItems" name="RestructuringProjectLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_RestructuringProjectTable" name="RestructuringProjectTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_ScheduleOfChangesToUnearnedRevenueForExtendedWarrantyTableTextBlock" name="ScheduleOfChangesToUnearnedRevenueForExtendedWarrantyTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_ScheduleOfRevenuesAndEarningsAttributableToAcquiredBusinessTableTextBlock" name="ScheduleOfRevenuesAndEarningsAttributableToAcquiredBusinessTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_ScheduleOfShareBasedPaymentAwardRestrictedStockUnitsValuationAssumptionsTableTextBlock" name="ScheduleOfShareBasedPaymentAwardRestrictedStockUnitsValuationAssumptionsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_StockIncentivePlanMember" name="StockIncentivePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_SummaryofintangibleassetaccountactivityTableTextBlock" name="SummaryofintangibleassetaccountactivityTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_TaxProvisionBenefitAbstract" name="TaxProvisionBenefitAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_ThresholdforReportingCustomerConcentrationMember" name="ThresholdforReportingCustomerConcentrationMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_TotalIntangibleAssetsAbstract" name="TotalIntangibleAssetsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_UnitedStatesAndCanadaMember" name="UnitedStatesAndCanadaMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_UnrestrictedStockAwardsCompensationExpense" name="UnrestrictedStockAwardsCompensationExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_UnsecuredMulticurrencyRevolvingLinesOfCreditMember" name="UnsecuredMulticurrencyRevolvingLinesOfCreditMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_UsdDenominatedTermLoanMember" name="UsdDenominatedTermLoanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_VestedAndReleasedMember" name="VestedAndReleasedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_VestedButNotReleasedMember" name="VestedButNotReleasedMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="itri_Warranty" name="Warranty" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="itri_WarrantyExpenseTableTextBlock" name="WarrantyExpenseTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="itri_WaterOperatingSegmentMember" name="WaterOperatingSegmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>
