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	  <link:definition>00000030 - Disclosure - 9. COMMON STOCK AND WARRANTS (Tables)</link:definition>
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	  <link:definition>00000045 - Disclosure - 4. INTANGIBLE ASSETS (Details Narrative)</link:definition>
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	  <link:definition>00000046 - Disclosure - 5. DERIVATIVES (Details-Fair value)</link:definition>
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	  <link:definition>00000047 - Disclosure - 5. DERIVATIVES (Details-Recognized gains/losses)</link:definition>
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	  <link:definition>00000048 - Disclosure - 5. DERIVATIVES (Details Narrative)</link:definition>
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	  <link:definition>00000049 - Disclosure - 6. DEBT (Details-Long term borrowings)</link:definition>
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	  <link:definition>00000050 - Disclosure - 6. DEBT (Details-Future debt payments)</link:definition>
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	  <link:definition>00000051 - Disclosure - 6. DEBT (Details Narrative)</link:definition>
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	  <link:definition>00000052 - Disclosure - 7. INCOME TAXES (Details-Effective rate)</link:definition>
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	  <link:definition>00000053 - Disclosure - 7. INCOME TAXES (Details-Deferred tax assets)</link:definition>
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	  <link:definition>00000054 - Disclosure - 7. INCOME TAXES (Details-Tax jurisdictions)</link:definition>
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	  <link:definition>00000055 - Disclosure - 7. INCOME TAXES (Details Narrative)</link:definition>
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	  <link:definition>00000056 - Disclosure - 8. PREFERRED STOCK (Details)</link:definition>
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    <element id="peix_ReclassOfWarrantLiabilityToEquityUponWarrantExercises" name="ReclassOfWarrantLiabilityToEquityUponWarrantExercises" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="peix_ReclassOfNoncontrollingInterestInVieToApicUponAcquisitionsOfOwnershipInterestsInNewPeHoldco" name="ReclassOfNoncontrollingInterestInVieToApicUponAcquisitionsOfOwnershipInterestsInNewPeHoldco" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="peix_PacificEthanolPlantsTextBlock" name="PacificEthanolPlantsTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" />
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    <element id="peix_DeferredFinancingCostsPolicyTextBlock" name="DeferredFinancingCostsPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="peix_OrganizationAndBasisOfPresentationTablesAbstract" name="OrganizationAndBasisOfPresentationTablesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="peix_PurchasesFromExternalCustomersTableTextBlock" name="PurchasesFromExternalCustomersTableTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="peix_PropertyAndEquipmentDepreciationUsefulLives" name="PropertyAndEquipmentDepreciationUsefulLives" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" />
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    <element id="peix_PlantOwnersOperatingLinesOfCreditAndAccruedInterest" name="PlantOwnersOperatingLinesOfCreditAndAccruedInterest" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="peix_WarrantsIssued" name="WarrantsIssued" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
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    <element id="peix_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsIssued" name="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsIssued" nillable="true" xbrli:periodType="duration" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" />
    <element id="peix_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsExercised" name="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsExercised" nillable="true" xbrli:periodType="duration" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" />
    <element id="peix_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsExpired" name="ClassOfWarrantOrRightExercisePriceOfWarrantsOrRightsExpired" nillable="true" xbrli:periodType="duration" type="us-types:perUnitItemType" substitutionGroup="xbrli:item" />
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    <element id="peix_WeightedAverageExercisePriceWarrantsIssued" name="WeightedAverageExercisePriceWarrantsIssued" nillable="true" xbrli:periodType="duration" type="num:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="peix_WeightedAverageExercisePriceWarrantsExercised" name="WeightedAverageExercisePriceWarrantsExercised" nillable="true" xbrli:periodType="duration" type="num:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="peix_WeightedAverageExercisePriceWarrantsExpired" name="WeightedAverageExercisePriceWarrantsExpired" nillable="true" xbrli:periodType="duration" type="num:perShareItemType" substitutionGroup="xbrli:item" />
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    <element id="peix_FairValueAssumptionsMarketabilityDiscount" name="FairValueAssumptionsMarketabilityDiscount" nillable="true" xbrli:periodType="duration" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="peix_FairValueIssuanceOfWarrants" name="FairValueIssuanceOfWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="peix_FairValueIssuanceOfNotesAndWarrants" name="FairValueIssuanceOfNotesAndWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="peix_FairValueIssuanceOfNotes" name="FairValueIssuanceOfNotes" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="peix_FairValueExercisesOfWarrants" name="FairValueExercisesOfWarrants" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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</schema>
