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  <xsd:element id="usu_PreferredInvestorsEachPercentofNewCommonStock" name="PreferredInvestorsEachPercentofNewCommonStock" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="usu_RdDProgramFundingByDoe" name="RdDProgramFundingByDoe" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="usu_RdDProgramFundingByUsec" name="RdDProgramFundingByUsec" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="usu_RdDProgramQualifyingExpendituresToDate" name="RdDProgramQualifyingExpendituresToDate" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="usu_RdDProgramQualifyingExpendituresToDateDoeShare" name="RdDProgramQualifyingExpendituresToDateDoeShare" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="usu_RdDProgramQualifyingExpendituresToDateDoeShareReceivable" name="RdDProgramQualifyingExpendituresToDateDoeShareReceivable" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="usu_RdDProgramQualifyingExpendituresToDateDoeShareReceived" name="RdDProgramQualifyingExpendituresToDateDoeShareReceived" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="usu_ReorganizationItemsNetPaid" name="ReorganizationItemsNetPaid" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="usu_ReorganizationItemsNetTableTextBlock" name="ReorganizationItemsNetTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="usu_ReorganizationItemsNetTextBlock" name="ReorganizationItemsNetTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="usu_ReorganizationsItemsNetAbstract" name="ReorganizationsItemsNetAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="usu_RestructuringLiabilityBalance" name="RestructuringLiabilityBalance" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="usu_RevenueFromLowEnrichedUraniumSegment" name="RevenueFromLowEnrichedUraniumSegment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="usu_ScheduleofSecuritiesExcludedfromNetIncomePerShareTableTextBlock" name="ScheduleofSecuritiesExcludedfromNetIncomePerShareTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="usu_SeparativeWorkUnits" name="SeparativeWorkUnits" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="usu_SeparativeWorkUnitsInventory" name="SeparativeWorkUnitsInventory" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="usu_SeparativeWorkUnitsNetOfLiability" name="SeparativeWorkUnitsNetOfLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="usu_SeparativeWorkUnitsOwedToCustomersAndSuppliers" name="SeparativeWorkUnitsOwedToCustomersAndSuppliers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="usu_SeveranceMember" name="SeveranceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="usu_StockholdersPercentofNewCommonStock" name="StockholdersPercentofNewCommonStock" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="usu_TotalCommonSharesAttributableToConversionOfDebtSecurities" name="TotalCommonSharesAttributableToConversionOfDebtSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="usu_UnadjustedWeightedAverageEffectOfDilutiveSecurities" name="UnadjustedWeightedAverageEffectOfDilutiveSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="usu_UnallowableCommonSharesAttributableToConversionOfDebtSecurities" name="UnallowableCommonSharesAttributableToConversionOfDebtSecurities" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="usu_Uranium" name="Uranium" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="usu_UraniumInventory" name="UraniumInventory" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="usu_UraniumInventoryNetOfLiability" name="UraniumInventoryNetOfLiability" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="usu_UraniumOwedToCustomersAndSuppliers" name="UraniumOwedToCustomersAndSuppliers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="usu_UtilityCustomerReceivables" name="UtilityCustomerReceivables" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="usu_WarrantsWithExercisePriceGreaterThanMarketPrice" name="WarrantsWithExercisePriceGreaterThanMarketPrice" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="usu_WorkforceReductionPhaseOneMember" name="WorkforceReductionPhaseOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>