<?xml version="1.0" encoding="US-ASCII" standalone="no"?>
    <!-- Field: Doc-Info; Name: Generator; Value: GoFiler Complete; Version: 4.26a -->
    <!-- Field: Doc-Info; Name: VendorURI; Value: http://www.novaworks.co -->
    <!-- Field: Doc-Info; Name: Source; Value: envision_10k%2D20181231.xfr; Date: 2019%2D03%2D23T01:26:23Z -->
    <!-- Field: Doc-Info; Name: Status; Value: 0x800E0004 -->
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xbrli="http://www.xbrl.org/2003/instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
    <link:roleRef roleURI="http://envisionsolar.com/role/DocumentAndEntityInformation" xlink:href="evsi-20181231.xsd#DocumentAndEntityInformation" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/BalanceSheets" xlink:href="evsi-20181231.xsd#BalanceSheets" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/BalanceSheetsParenthetical" xlink:href="evsi-20181231.xsd#BalanceSheetsParenthetical" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/StatementsOfOperations" xlink:href="evsi-20181231.xsd#StatementsOfOperations" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/StatementsOfOperationsParenthetical" xlink:href="evsi-20181231.xsd#StatementsOfOperationsParenthetical" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/StatementsOfChangesInStockholdersDeficit" xlink:href="evsi-20181231.xsd#StatementsOfChangesInStockholdersDeficit" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/StatementsOfCashFlows" xlink:href="evsi-20181231.xsd#StatementsOfCashFlows" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPolicies" xlink:href="evsi-20181231.xsd#CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPolicies" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/GoingConcern" xlink:href="evsi-20181231.xsd#GoingConcern" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/AccountsReceivableAndDeferredRevenue" xlink:href="evsi-20181231.xsd#AccountsReceivableAndDeferredRevenue" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/PrepaidExpensesAndOtherCurrentAssets" xlink:href="evsi-20181231.xsd#PrepaidExpensesAndOtherCurrentAssets" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/Inventory" xlink:href="evsi-20181231.xsd#Inventory" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/PropertyAndEquipment" xlink:href="evsi-20181231.xsd#PropertyAndEquipment" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/AccruedExpenses" xlink:href="evsi-20181231.xsd#AccruedExpenses" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/LineOfCredittermDebt-SiliconValleyBank" xlink:href="evsi-20181231.xsd#LineOfCredittermDebt-SiliconValleyBank" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/ConvertibleNotePayable-RelatedParty" xlink:href="evsi-20181231.xsd#ConvertibleNotePayable-RelatedParty" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/ConvertibleNotesPayableAndFairValueMeasurements" xlink:href="evsi-20181231.xsd#ConvertibleNotesPayableAndFairValueMeasurements" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/NotePayable" xlink:href="evsi-20181231.xsd#NotePayable" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/AutoLoan" xlink:href="evsi-20181231.xsd#AutoLoan" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CommitmentsAndContingencies" xlink:href="evsi-20181231.xsd#CommitmentsAndContingencies" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CommonStock" xlink:href="evsi-20181231.xsd#CommonStock" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/StockOptionsAndWarrants" xlink:href="evsi-20181231.xsd#StockOptionsAndWarrants" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/Revenues" xlink:href="evsi-20181231.xsd#Revenues" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/IncomeTaxes" xlink:href="evsi-20181231.xsd#IncomeTaxes" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/RelatedPartyTransactions" xlink:href="evsi-20181231.xsd#RelatedPartyTransactions" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/SubsequentEvents" xlink:href="evsi-20181231.xsd#SubsequentEvents" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:href="evsi-20181231.xsd#CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables" xlink:href="evsi-20181231.xsd#CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/AccountsReceivableAndDeferredRevenueTables" xlink:href="evsi-20181231.xsd#AccountsReceivableAndDeferredRevenueTables" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/PrepaidExpensesAndOtherCurrentAssetsTables" xlink:href="evsi-20181231.xsd#PrepaidExpensesAndOtherCurrentAssetsTables" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/InventoryTables" xlink:href="evsi-20181231.xsd#InventoryTables" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/PropertyAndEquipmentTables" xlink:href="evsi-20181231.xsd#PropertyAndEquipmentTables" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/AccruedExpensesTables" xlink:href="evsi-20181231.xsd#AccruedExpensesTables" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/ConvertibleNotesPayableAndFairValueMeasurementsTables" xlink:href="evsi-20181231.xsd#ConvertibleNotesPayableAndFairValueMeasurementsTables" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CommitmentsAndContingenciesTables" xlink:href="evsi-20181231.xsd#CommitmentsAndContingenciesTables" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CommonStockTables" xlink:href="evsi-20181231.xsd#CommonStockTables" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/StockOptionsAndWarrantsTables" xlink:href="evsi-20181231.xsd#StockOptionsAndWarrantsTables" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/RevenuesTables" xlink:href="evsi-20181231.xsd#RevenuesTables" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/IncomeTaxesTables" xlink:href="evsi-20181231.xsd#IncomeTaxesTables" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPoliciesDetails" xlink:href="evsi-20181231.xsd#CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPoliciesDetails" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPoliciesDetailsNarrative" xlink:href="evsi-20181231.xsd#CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPoliciesDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/GoingConcernDetailsNarrative" xlink:href="evsi-20181231.xsd#GoingConcernDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/AccountsReceivableAndDeferredRevenueDetails-accountsReceivable" xlink:href="evsi-20181231.xsd#AccountsReceivableAndDeferredRevenueDetails-accountsReceivable" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/AccountsReceivableAndDeferredRevenueDetailsNarrative" xlink:href="evsi-20181231.xsd#AccountsReceivableAndDeferredRevenueDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/PrepaidExpensesAndOtherCurrentAssetsDetails" xlink:href="evsi-20181231.xsd#PrepaidExpensesAndOtherCurrentAssetsDetails" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/InventoryDetails" xlink:href="evsi-20181231.xsd#InventoryDetails" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/PropertyAndEquipmentDetails" xlink:href="evsi-20181231.xsd#PropertyAndEquipmentDetails" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/PropertyAndEquipmentDetailsNarrative" xlink:href="evsi-20181231.xsd#PropertyAndEquipmentDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/AccruedExpensesDetails" xlink:href="evsi-20181231.xsd#AccruedExpensesDetails" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/LineOfCredittermDebt-SiliconValleyBankAndConvertibleLineOfCreditDetailsNarrative" xlink:href="evsi-20181231.xsd#LineOfCredittermDebt-SiliconValleyBankAndConvertibleLineOfCreditDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/ConvertibleNotePayable-RelatedPartyDetailsNarrative" xlink:href="evsi-20181231.xsd#ConvertibleNotePayable-RelatedPartyDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/ConvertibleNotesPayableAndFairValueMeasurementsDetails-ConvertibleNotesPayable" xlink:href="evsi-20181231.xsd#ConvertibleNotesPayableAndFairValueMeasurementsDetails-ConvertibleNotesPayable" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/ConvertibleNotesPayableAndFairValueMeasurementsDetails-level3" xlink:href="evsi-20181231.xsd#ConvertibleNotesPayableAndFairValueMeasurementsDetails-level3" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/ConvertibleNotesPayableAndFairValueMeasurementsDetailsNarrative" xlink:href="evsi-20181231.xsd#ConvertibleNotesPayableAndFairValueMeasurementsDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/NotePayableDetailsNarrative" xlink:href="evsi-20181231.xsd#NotePayableDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/AutoLoanDetailsNarrative" xlink:href="evsi-20181231.xsd#AutoLoanDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CommitmentsAndContingenciesDetails-FutureLeasePayments" xlink:href="evsi-20181231.xsd#CommitmentsAndContingenciesDetails-FutureLeasePayments" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CommitmentsAndContingenciesDetailsNarrative" xlink:href="evsi-20181231.xsd#CommitmentsAndContingenciesDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CommonStockDetails" xlink:href="evsi-20181231.xsd#CommonStockDetails" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/CommonStockDetailsNarrative" xlink:href="evsi-20181231.xsd#CommonStockDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/StockOptionsAndWarrantsDetails-assumptions" xlink:href="evsi-20181231.xsd#StockOptionsAndWarrantsDetails-assumptions" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/StockOptionsAndWarrantsDetails-optionActivity" xlink:href="evsi-20181231.xsd#StockOptionsAndWarrantsDetails-optionActivity" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/StockOptionsAndWarrantsDetails-optionsOutstandingAndExercisable" xlink:href="evsi-20181231.xsd#StockOptionsAndWarrantsDetails-optionsOutstandingAndExercisable" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/StockOptionsAndWarrantsDetails-warrantActivity" xlink:href="evsi-20181231.xsd#StockOptionsAndWarrantsDetails-warrantActivity" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/StockOptionsAndWarrantsDetailsNarrative" xlink:href="evsi-20181231.xsd#StockOptionsAndWarrantsDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/RevenuesDetails" xlink:href="evsi-20181231.xsd#RevenuesDetails" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/RevenuesDetailsNarrative" xlink:href="evsi-20181231.xsd#RevenuesDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/IncomeTaxesDetails-taxExpense" xlink:href="evsi-20181231.xsd#IncomeTaxesDetails-taxExpense" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/IncomeTaxesDetails-deferredTaxAssetsAndLiabilities" xlink:href="evsi-20181231.xsd#IncomeTaxesDetails-deferredTaxAssetsAndLiabilities" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/IncomeTaxesDetailsNarrative" xlink:href="evsi-20181231.xsd#IncomeTaxesDetailsNarrative" xlink:type="simple" />
    <link:roleRef roleURI="http://envisionsolar.com/role/RelatedPartyTransactionsDetailsNarrative" xlink:href="evsi-20181231.xsd#RelatedPartyTransactionsDetailsNarrative" xlink:type="simple" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/DocumentAndEntityInformation" xlink:title="00000001 - Document - Document and Entity Information" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/BalanceSheets" xlink:title="00000002 - Statement - Consolidated Balance Sheets">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AssetsCurrent" xlink:label="loc_us-gaapAssetsCurrent" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Cash" xlink:label="loc_us-gaapCash" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapCash" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaapAccountsReceivableNetCurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapAccountsReceivableNetCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaapInventoryNet" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssetsCurrent" xlink:to="loc_us-gaapInventoryNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAssetsNoncurrent" xlink:label="loc_us-gaapOtherAssetsNoncurrent" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet" xlink:label="loc_us-gaapFiniteLivedIntangibleAssetsNet" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOtherAssetsNoncurrent" xlink:to="loc_us-gaapFiniteLivedIntangibleAssetsNet" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DepositsAssets" xlink:label="loc_us-gaapDepositsAssets" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOtherAssetsNoncurrent" xlink:to="loc_us-gaapDepositsAssets" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredOfferingCosts" xlink:label="loc_us-gaapDeferredOfferingCosts" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOtherAssetsNoncurrent" xlink:to="loc_us-gaapDeferredOfferingCosts" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Assets" xlink:label="loc_us-gaapAssets" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapAssetsCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaapPropertyPlantAndEquipmentNet" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapPropertyPlantAndEquipmentNet" xlink:type="arc" weight="1" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAssets" xlink:to="loc_us-gaapOtherAssetsNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesCurrent" xlink:label="loc_us-gaapLiabilitiesCurrent" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsPayableCurrent" xlink:label="loc_us-gaapAccountsPayableCurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapAccountsPayableCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaapAccruedLiabilitiesCurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapAccruedLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_SalesAndExciseTaxPayableCurrent" xlink:label="loc_us-gaapSalesAndExciseTaxPayableCurrent" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapSalesAndExciseTaxPayableCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredRevenueCurrent" xlink:label="loc_us-gaapDeferredRevenueCurrent" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapDeferredRevenueCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LinesOfCreditCurrent" xlink:label="loc_us-gaapLinesOfCreditCurrent" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapLinesOfCreditCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConvertibleNotesPayableCurrent" xlink:label="loc_us-gaapConvertibleNotesPayableCurrent" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapConvertibleNotesPayableCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NotesPayableRelatedPartiesClassifiedCurrent" xlink:label="loc_us-gaapNotesPayableRelatedPartiesClassifiedCurrent" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapNotesPayableRelatedPartiesClassifiedCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NotesPayableCurrent" xlink:label="loc_us-gaapNotesPayableCurrent" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapNotesPayableCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLoansPayableCurrent" xlink:label="loc_us-gaapOtherLoansPayableCurrent" />
      <link:calculationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesCurrent" xlink:to="loc_us-gaapOtherLoansPayableCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LongTermDebtCurrent" xlink:label="loc_us-gaapLongTermDebtCurrent" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NotesPayableRelatedPartiesNoncurrent" xlink:label="loc_us-gaapNotesPayableRelatedPartiesNoncurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLongTermDebtCurrent" xlink:to="loc_us-gaapNotesPayableRelatedPartiesNoncurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ConvertibleLongTermNotesPayable" xlink:label="loc_us-gaapConvertibleLongTermNotesPayable" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLongTermDebtCurrent" xlink:to="loc_us-gaapConvertibleLongTermNotesPayable" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherLoansPayableLongTerm" xlink:label="loc_us-gaapOtherLoansPayableLongTerm" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLongTermDebtCurrent" xlink:to="loc_us-gaapOtherLoansPayableLongTerm" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Liabilities" xlink:label="loc_us-gaapLiabilities" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilities" xlink:to="loc_us-gaapLongTermDebtCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="loc_us-gaapStockholdersEquity" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="loc_us-gaapPreferredStockValue" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapPreferredStockValue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CommonStockValue" xlink:label="loc_us-gaapCommonStockValue" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapCommonStockValue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="loc_us-gaapAdditionalPaidInCapital" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapAdditionalPaidInCapital" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="loc_us-gaapRetainedEarningsAccumulatedDeficit" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapStockholdersEquity" xlink:to="loc_us-gaapRetainedEarningsAccumulatedDeficit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="loc_us-gaapLiabilitiesAndStockholdersEquity" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaapLiabilities" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapLiabilitiesAndStockholdersEquity" xlink:to="loc_us-gaapStockholdersEquity" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/BalanceSheetsParenthetical" xlink:title="00000003 - Statement - Consolidated Balance Sheets (Parenthetical)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/StatementsOfOperations" xlink:title="00000004 - Statement - Consolidated Statements of Operations">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GrossProfit" xlink:label="loc_us-gaapGrossProfit" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_Revenues" xlink:label="loc_us-gaapRevenues" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapGrossProfit" xlink:to="loc_us-gaapRevenues" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CostOfRevenue" xlink:label="loc_us-gaapCostOfRevenue" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapGrossProfit" xlink:to="loc_us-gaapCostOfRevenue" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingIncomeLoss" xlink:label="loc_us-gaapOperatingIncomeLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapGrossProfit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DirectOperatingCosts" xlink:label="loc_us-gaapDirectOperatingCosts" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingIncomeLoss" xlink:to="loc_us-gaapDirectOperatingCosts" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NonoperatingIncomeExpense" xlink:label="loc_us-gaapNonoperatingIncomeExpense" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherNonoperatingIncome" xlink:label="loc_us-gaapOtherNonoperatingIncome" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapOtherNonoperatingIncome" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="loc_us-gaapGainLossOnSaleOfPropertyPlantEquipment" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapGainLossOnSaleOfPropertyPlantEquipment" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ExtinguishmentOfDebtGainLossNetOfTax" xlink:label="loc_us-gaapExtinguishmentOfDebtGainLossNetOfTax" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapExtinguishmentOfDebtGainLossNetOfTax" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestExpense" xlink:label="loc_us-gaapInterestExpense" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapInterestExpense" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaapGainsLossesOnExtinguishmentOfDebt" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNonoperatingIncomeExpense" xlink:to="loc_us-gaapGainsLossesOnExtinguishmentOfDebt" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:label="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="loc_us-gaapNonoperatingIncomeExpense" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:to="loc_us-gaapOperatingIncomeLoss" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetIncomeLoss" xlink:to="loc_us-gaapIncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CurrentStateAndLocalTaxExpenseBenefit" xlink:label="loc_us-gaapCurrentStateAndLocalTaxExpenseBenefit" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetIncomeLoss" xlink:to="loc_us-gaapCurrentStateAndLocalTaxExpenseBenefit" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/StatementsOfOperationsParenthetical" xlink:title="00000005 - Statement - Consolidated Statements of Operations (Parenthetical)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/StatementsOfChangesInStockholdersDeficit" xlink:title="00000006 - Statement - Consolidated Statements of Changes in Stockholders' Deficit" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/StatementsOfCashFlows" xlink:title="00000007 - Statement - Consolidated Statements of Cash Flows">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetIncomeLoss" xlink:label="loc_us-gaapNetIncomeLoss" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapNetIncomeLoss" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization" xlink:label="loc_us-gaapDepreciationDepletionAndAmortization" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapDepreciationDepletionAndAmortization" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="evsi-20181231.xsd#evsi_CommonStockIssuedForLoanGuaranty" xlink:label="loc_evsiCommonStockIssuedForLoanGuaranty" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_evsiCommonStockIssuedForLoanGuaranty" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IssuanceOfStockAndWarrantsForServicesOrClaims" xlink:label="loc_us-gaapIssuanceOfStockAndWarrantsForServicesOrClaims" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIssuanceOfStockAndWarrantsForServicesOrClaims" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ExtinguishmentOfDebtGainLossNetOfTax" xlink:label="loc_us-gaapExtinguishmentOfDebtGainLossNetOfTax" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapExtinguishmentOfDebtGainLossNetOfTax" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="loc_us-gaapShareBasedCompensation" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapShareBasedCompensation" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainsLossesOnExtinguishmentOfDebt" xlink:label="loc_us-gaapGainsLossesOnExtinguishmentOfDebt" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapGainsLossesOnExtinguishmentOfDebt" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfFinancingCostsAndDiscounts" xlink:label="loc_us-gaapAmortizationOfFinancingCostsAndDiscounts" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapAmortizationOfFinancingCostsAndDiscounts" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AmortizationOfFinancingCosts" xlink:label="loc_us-gaapAmortizationOfFinancingCosts" />
      <link:calculationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapAmortizationOfFinancingCosts" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsReceivable" xlink:label="loc_us-gaapIncreaseDecreaseInAccountsReceivable" />
      <link:calculationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInAccountsReceivable" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:label="loc_us-gaapIncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" />
      <link:calculationArc order="11" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInInventories" xlink:label="loc_us-gaapIncreaseDecreaseInInventories" />
      <link:calculationArc order="12" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInInventories" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInDepositOtherAssets" xlink:label="loc_us-gaapIncreaseDecreaseInDepositOtherAssets" />
      <link:calculationArc order="13" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInDepositOtherAssets" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable" xlink:label="loc_us-gaapIncreaseDecreaseInAccountsPayable" />
      <link:calculationArc order="14" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInAccountsPayable" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedLiabilities" xlink:label="loc_us-gaapIncreaseDecreaseInAccruedLiabilities" />
      <link:calculationArc order="15" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInAccruedLiabilities" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="evsi-20181231.xsd#evsi_ConvertibleNotePayableIssuedInLieuOfSalaryRelatedParty" xlink:label="loc_evsiConvertibleNotePayableIssuedInLieuOfSalaryRelatedParty" />
      <link:calculationArc order="16" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_evsiConvertibleNotePayableIssuedInLieuOfSalaryRelatedParty" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInAccruedTaxesPayable" xlink:label="loc_us-gaapIncreaseDecreaseInAccruedTaxesPayable" />
      <link:calculationArc order="17" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInAccruedTaxesPayable" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_IncreaseDecreaseInDeferredRevenue" xlink:label="loc_us-gaapIncreaseDecreaseInDeferredRevenue" />
      <link:calculationArc order="18" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapIncreaseDecreaseInDeferredRevenue" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_GainLossOnSaleOfPropertyPlantEquipment" xlink:label="loc_us-gaapGainLossOnSaleOfPropertyPlantEquipment" />
      <link:calculationArc order="19" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:to="loc_us-gaapGainLossOnSaleOfPropertyPlantEquipment" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="loc_us-gaapPaymentsToAcquirePropertyPlantAndEquipment" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapPaymentsToAcquirePropertyPlantAndEquipment" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="loc_us-gaapProceedsFromSaleOfPropertyPlantAndEquipment" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapProceedsFromSaleOfPropertyPlantAndEquipment" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsToAcquireIntangibleAssets" xlink:label="loc_us-gaapPaymentsToAcquireIntangibleAssets" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:to="loc_us-gaapPaymentsToAcquireIntangibleAssets" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock" xlink:label="loc_us-gaapProceedsFromIssuanceOfCommonStock" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromIssuanceOfCommonStock" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfStockIssuanceCosts" xlink:label="loc_us-gaapPaymentsOfStockIssuanceCosts" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapPaymentsOfStockIssuanceCosts" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromConvertibleDebt" xlink:label="loc_us-gaapProceedsFromConvertibleDebt" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromConvertibleDebt" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="evsi-20181231.xsd#evsi_ProceedsFromConvertibleLineOfCredit" xlink:label="loc_evsiProceedsFromConvertibleLineOfCredit" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_evsiProceedsFromConvertibleLineOfCredit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfLinesOfCredit" xlink:label="loc_us-gaapProceedsFromRepaymentsOfLinesOfCredit" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromRepaymentsOfLinesOfCredit" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RepaymentsOfConvertibleDebt" xlink:label="loc_us-gaapRepaymentsOfConvertibleDebt" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapRepaymentsOfConvertibleDebt" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_RepaymentsOfOtherDebt" xlink:label="loc_us-gaapRepaymentsOfOtherDebt" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapRepaymentsOfOtherDebt" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentOfFinancingAndStockIssuanceCosts" xlink:label="loc_us-gaapPaymentOfFinancingAndStockIssuanceCosts" />
      <link:calculationArc order="8" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapPaymentOfFinancingAndStockIssuanceCosts" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PaymentsOfLoanCosts" xlink:label="loc_us-gaapPaymentsOfLoanCosts" />
      <link:calculationArc order="9" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapPaymentsOfLoanCosts" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfNotesPayable" xlink:label="loc_us-gaapProceedsFromRepaymentsOfNotesPayable" />
      <link:calculationArc order="10" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:to="loc_us-gaapProceedsFromRepaymentsOfNotesPayable" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_CashPeriodIncreaseDecrease" xlink:label="loc_us-gaapCashPeriodIncreaseDecrease" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashPeriodIncreaseDecrease" xlink:to="loc_us-gaapNetCashProvidedByUsedInOperatingActivities" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashPeriodIncreaseDecrease" xlink:to="loc_us-gaapNetCashProvidedByUsedInInvestingActivities" xlink:type="arc" weight="1" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapCashPeriodIncreaseDecrease" xlink:to="loc_us-gaapNetCashProvidedByUsedInFinancingActivities" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPolicies" xlink:title="00000008 - Disclosure - 1. CORPORATE ORGANIZATION, NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/GoingConcern" xlink:title="00000009 - Disclosure - 2. GOING CONCERN" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/AccountsReceivableAndDeferredRevenue" xlink:title="00000010 - Disclosure - 3. ACCOUNTS RECEIVABLE, AND DEFERRED REVENUE" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/PrepaidExpensesAndOtherCurrentAssets" xlink:title="00000011 - Disclosure - 4. PREPAID EXPENSES AND OTHER CURRENT ASSETS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/Inventory" xlink:title="00000012 - Disclosure - 5. INVENTORY" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/PropertyAndEquipment" xlink:title="00000013 - Disclosure - 6. PROPERTY AND EQUIPMENT" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/AccruedExpenses" xlink:title="00000014 - Disclosure - 7. ACCRUED EXPENSES" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/LineOfCredittermDebt-SiliconValleyBank" xlink:title="00000015 - Disclosure - 8. LINE OF CREDIT/TERM DEBT - SILICON VALLEY BANK" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/ConvertibleNotePayable-RelatedParty" xlink:title="00000016 - Disclosure - 9. CONVERTIBLE NOTE PAYABLE - RELATED PARTY" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/ConvertibleNotesPayableAndFairValueMeasurements" xlink:title="00000017 - Disclosure - 10. CONVERTIBLE NOTES PAYABLE AND FAIR VALUE MEASUREMENTS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/NotePayable" xlink:title="00000018 - Disclosure - 11. NOTE PAYABLE" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/AutoLoan" xlink:title="00000019 - Disclosure - 12. AUTO LOAN" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CommitmentsAndContingencies" xlink:title="00000020 - Disclosure - 13. COMMITMENTS AND CONTINGENCIES" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CommonStock" xlink:title="00000021 - Disclosure - 14. COMMON STOCK" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/StockOptionsAndWarrants" xlink:title="00000022 - Disclosure - 15. STOCK OPTIONS AND WARRANTS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/Revenues" xlink:title="00000023 - Disclosure - 16. REVENUES" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/IncomeTaxes" xlink:title="00000024 - Disclosure - 17. INCOME TAXES" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/RelatedPartyTransactions" xlink:title="00000025 - Disclosure - 18. RELATED PARTY TRANSACTIONS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/SubsequentEvents" xlink:title="00000026 - Disclosure - 19. SUBSEQUENT EVENTS" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPoliciesPolicies" xlink:title="00000027 - Disclosure - 1. CORPORATE ORGANIZATION, NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPoliciesTables" xlink:title="00000028 - Disclosure - 1. CORPORATE ORGANIZATION, NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/AccountsReceivableAndDeferredRevenueTables" xlink:title="00000029 - Disclosure - 3. ACCOUNTS RECEIVABLE, AND DEFERRED REVENUE (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/PrepaidExpensesAndOtherCurrentAssetsTables" xlink:title="00000030 - Disclosure - 4. PREPAID EXPENSES AND OTHER CURRENT ASSETS (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/InventoryTables" xlink:title="00000031 - Disclosure - 5. INVENTORY (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/PropertyAndEquipmentTables" xlink:title="00000032 - Disclosure - 6. PROPERTY AND EQUIPMENT (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/AccruedExpensesTables" xlink:title="00000033 - Disclosure - 7. ACCRUED EXPENSES (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/ConvertibleNotesPayableAndFairValueMeasurementsTables" xlink:title="00000034 - Disclosure - 10. CONVERTIBLE NOTES PAYABLE AND FAIR VALUE MEASUREMENTS (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CommitmentsAndContingenciesTables" xlink:title="00000035 - Disclosure - 13. COMMITMENTS AND CONTINGENCIES (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CommonStockTables" xlink:title="00000036 - Disclosure - 14. COMMON STOCK (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/StockOptionsAndWarrantsTables" xlink:title="00000037 - Disclosure - 15. STOCK OPTIONS AND WARRANTS (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/RevenuesTables" xlink:title="00000038 - Disclosure - 16. REVENUES (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/IncomeTaxesTables" xlink:title="00000039 - Disclosure - 17. INCOME TAXES (Tables)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPoliciesDetails" xlink:title="00000040 - Disclosure - 1. CORPORATE ORGANIZATION, NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CorporateOrganizationNatureOfOperationsAndSummaryOfSignificantAccountingPoliciesDetailsNarrative" xlink:title="00000041 - Disclosure - 1. CORPORATE ORGANIZATION, NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/GoingConcernDetailsNarrative" xlink:title="00000042 - Disclosure - 2. GOING CONCERN (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/AccountsReceivableAndDeferredRevenueDetails-accountsReceivable" xlink:title="00000043 - Disclosure - 3. ACCOUNTS RECEIVABLE, AND DEFERRED REVENUE (Details-Accounts Receivable)">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableNetCurrent" xlink:label="loc_us-gaapAccountsReceivableNetCurrent" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccountsReceivableGross" xlink:label="loc_us-gaapAccountsReceivableGross" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAccountsReceivableNetCurrent" xlink:to="loc_us-gaapAccountsReceivableGross" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivable" xlink:label="loc_us-gaapAllowanceForDoubtfulAccountsReceivable" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAccountsReceivableNetCurrent" xlink:to="loc_us-gaapAllowanceForDoubtfulAccountsReceivable" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/AccountsReceivableAndDeferredRevenueDetailsNarrative" xlink:title="00000044 - Disclosure - 3. ACCOUNTS RECEIVABLE, AND DEFERRED REVENUE (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/PrepaidExpensesAndOtherCurrentAssetsDetails" xlink:title="00000045 - Disclosure - 4. PREPAID EXPENSES AND OTHER CURRENT ASSETS (Details)">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent" xlink:label="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PrepaidInsurance" xlink:label="loc_us-gaapPrepaidInsurance" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" xlink:to="loc_us-gaapPrepaidInsurance" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DepositsAssetsCurrent" xlink:label="loc_us-gaapDepositsAssetsCurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapPrepaidExpenseAndOtherAssetsCurrent" xlink:to="loc_us-gaapDepositsAssetsCurrent" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/InventoryDetails" xlink:title="00000046 - Disclosure - 5. INVENTORY (Details)">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryNet" xlink:label="loc_us-gaapInventoryNet" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryFinishedGoods" xlink:label="loc_us-gaapInventoryFinishedGoods" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapInventoryNet" xlink:to="loc_us-gaapInventoryFinishedGoods" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryRawMaterials" xlink:label="loc_us-gaapInventoryRawMaterials" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapInventoryNet" xlink:to="loc_us-gaapInventoryRawMaterials" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryValuationReserves" xlink:label="loc_us-gaapInventoryValuationReserves" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapInventoryNet" xlink:to="loc_us-gaapInventoryValuationReserves" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InventoryWorkInProcess" xlink:label="loc_us-gaapInventoryWorkInProcess" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapInventoryNet" xlink:to="loc_us-gaapInventoryWorkInProcess" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/PropertyAndEquipmentDetails" xlink:title="00000047 - Disclosure - 6. PROPERTY AND EQUIPMENT (Details)">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="loc_us-gaapPropertyPlantAndEquipmentNet" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross" xlink:label="loc_us-gaapPropertyPlantAndEquipmentGross" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapPropertyPlantAndEquipmentNet" xlink:to="loc_us-gaapPropertyPlantAndEquipmentGross" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:label="loc_us-gaapAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapPropertyPlantAndEquipmentNet" xlink:to="loc_us-gaapAccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/PropertyAndEquipmentDetailsNarrative" xlink:title="00000048 - Disclosure - 6. PROPERTY AND EQUIPMENT (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/AccruedExpensesDetails" xlink:title="00000049 - Disclosure - 7. ACCRUED EXPENSES (Details)">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedLiabilitiesCurrent" xlink:label="loc_us-gaapAccruedLiabilitiesCurrent" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedVacationCurrent" xlink:label="loc_us-gaapAccruedVacationCurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAccruedLiabilitiesCurrent" xlink:to="loc_us-gaapAccruedVacationCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OtherAccruedLiabilitiesCurrent" xlink:label="loc_us-gaapOtherAccruedLiabilitiesCurrent" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAccruedLiabilitiesCurrent" xlink:to="loc_us-gaapOtherAccruedLiabilitiesCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_InterestPayableCurrent" xlink:label="loc_us-gaapInterestPayableCurrent" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAccruedLiabilitiesCurrent" xlink:to="loc_us-gaapInterestPayableCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccruedRentCurrent" xlink:label="loc_us-gaapAccruedRentCurrent" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAccruedLiabilitiesCurrent" xlink:to="loc_us-gaapAccruedRentCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_AccrualForEnvironmentalLossContingencies" xlink:label="loc_us-gaapAccrualForEnvironmentalLossContingencies" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapAccruedLiabilitiesCurrent" xlink:to="loc_us-gaapAccrualForEnvironmentalLossContingencies" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/LineOfCredittermDebt-SiliconValleyBankAndConvertibleLineOfCreditDetailsNarrative" xlink:title="00000050 - Disclosure - 8. LINE OF CREDIT/TERM DEBT - SILICON VALLEY BANK AND CONVERTIBLE LINE OF CREDIT (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/ConvertibleNotePayable-RelatedPartyDetailsNarrative" xlink:title="00000051 - Disclosure - 9. CONVERTIBLE NOTE PAYABLE - RELATED PARTY (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/ConvertibleNotesPayableAndFairValueMeasurementsDetails-ConvertibleNotesPayable" xlink:title="00000052 - Disclosure - 10. CONVERTIBLE NOTES PAYABLE AND FAIR VALUE MEASUREMENTS (Details - Convertible notes payable)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/ConvertibleNotesPayableAndFairValueMeasurementsDetails-level3" xlink:title="00000053 - Disclosure - 10. CONVERTIBLE NOTES PAYABLE AND FAIR VALUE MEASUREMENTS (Details-Level 3)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/ConvertibleNotesPayableAndFairValueMeasurementsDetailsNarrative" xlink:title="00000054 - Disclosure - 10. CONVERTIBLE NOTES PAYABLE AND FAIR VALUE MEASUREMENTS (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/NotePayableDetailsNarrative" xlink:title="00000055 - Disclosure - 11. NOTE PAYABLE (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/AutoLoanDetailsNarrative" xlink:title="00000056 - Disclosure - 12. AUTO LOAN (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CommitmentsAndContingenciesDetails-FutureLeasePayments" xlink:title="00000057 - Disclosure - 13. COMMITMENTS AND CONTINGENCIES (Details - Future lease payments)">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDue" xlink:label="loc_us-gaapOperatingLeasesFutureMinimumPaymentsDue" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:label="loc_us-gaapOperatingLeasesFutureMinimumPaymentsDueCurrent" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingLeasesFutureMinimumPaymentsDue" xlink:to="loc_us-gaapOperatingLeasesFutureMinimumPaymentsDueCurrent" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:label="loc_us-gaapOperatingLeasesFutureMinimumPaymentsDueInTwoYears" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapOperatingLeasesFutureMinimumPaymentsDue" xlink:to="loc_us-gaapOperatingLeasesFutureMinimumPaymentsDueInTwoYears" xlink:type="arc" weight="1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CommitmentsAndContingenciesDetailsNarrative" xlink:title="00000058 - Disclosure - 13. COMMITMENTS AND CONTINGENCIES (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CommonStockDetails" xlink:title="00000059 - Disclosure - 14. COMMON STOCK (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/CommonStockDetailsNarrative" xlink:title="00000060 - Disclosure - 14. COMMON STOCK (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/StockOptionsAndWarrantsDetails-assumptions" xlink:title="00000061 - Disclosure - 15. STOCK OPTIONS AND WARRANTS (Details-Assumptions)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/StockOptionsAndWarrantsDetails-optionActivity" xlink:title="00000062 - Disclosure - 15. STOCK OPTIONS AND WARRANTS (Details-Option Activity)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/StockOptionsAndWarrantsDetails-optionsOutstandingAndExercisable" xlink:title="00000063 - Disclosure - 15. STOCK OPTIONS AND WARRANTS (Details-Options Outstanding and Exercisable)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/StockOptionsAndWarrantsDetails-warrantActivity" xlink:title="00000064 - Disclosure - 15. STOCK OPTIONS AND WARRANTS (Details-Warrant Activity)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/StockOptionsAndWarrantsDetailsNarrative" xlink:title="00000065 - Disclosure - 15. STOCK OPTIONS AND WARRANTS (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/RevenuesDetails" xlink:title="00000066 - Disclosure - 16. REVENUES (Details)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/RevenuesDetailsNarrative" xlink:title="00000067 - Disclosure - 16. REVENUES (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/IncomeTaxesDetails-taxExpense" xlink:title="00000068 - Disclosure - 17. INCOME TAXES (Details-Tax Expense)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/IncomeTaxesDetails-deferredTaxAssetsAndLiabilities" xlink:title="00000069 - Disclosure - 17. INCOME TAXES (Details-Deferred tax assets and liabilities)">
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsGross" xlink:label="loc_us-gaapDeferredTaxAssetsGross" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsCharitableContributionCarryforwards" xlink:label="loc_us-gaapDeferredTaxAssetsCharitableContributionCarryforwards" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_us-gaapDeferredTaxAssetsCharitableContributionCarryforwards" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xlink:label="loc_us-gaapDeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_us-gaapDeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:label="loc_us-gaapDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" />
      <link:calculationArc order="3" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_us-gaapDeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxLiabilitiesTaxDeferredIncome" xlink:label="loc_us-gaapDeferredTaxLiabilitiesTaxDeferredIncome" />
      <link:calculationArc order="4" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_us-gaapDeferredTaxLiabilitiesTaxDeferredIncome" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment" xlink:label="loc_us-gaapDeferredTaxAssetsPropertyPlantAndEquipment" />
      <link:calculationArc order="5" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_us-gaapDeferredTaxAssetsPropertyPlantAndEquipment" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsOther" xlink:label="loc_us-gaapDeferredTaxAssetsOther" />
      <link:calculationArc order="6" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_us-gaapDeferredTaxAssetsOther" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsOperatingLossCarryforwards" xlink:label="loc_us-gaapDeferredTaxAssetsOperatingLossCarryforwards" />
      <link:calculationArc order="7" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsGross" xlink:to="loc_us-gaapDeferredTaxAssetsOperatingLossCarryforwards" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsNet" xlink:label="loc_us-gaapDeferredTaxAssetsNet" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsNet" xlink:to="loc_us-gaapDeferredTaxAssetsGross" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsValuationAllowance" xlink:label="loc_us-gaapDeferredTaxAssetsValuationAllowance" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsNet" xlink:to="loc_us-gaapDeferredTaxAssetsValuationAllowance" xlink:type="arc" weight="-1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilities" xlink:label="loc_us-gaapDeferredIncomeTaxLiabilities" />
      <link:loc xlink:type="locator" xlink:href="evsi-20181231.xsd#evsi_DeferredTaxLiabilitiesAccruedSalaries" xlink:label="loc_evsiDeferredTaxLiabilitiesAccruedSalaries" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredIncomeTaxLiabilities" xlink:to="loc_evsiDeferredTaxLiabilitiesAccruedSalaries" xlink:type="arc" weight="1" />
      <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2018/elts/us-gaap-2018-01-31.xsd#us-gaap_DeferredTaxAssetsLiabilitiesNet" xlink:label="loc_us-gaapDeferredTaxAssetsLiabilitiesNet" />
      <link:calculationArc order="1" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsLiabilitiesNet" xlink:to="loc_us-gaapDeferredTaxAssetsNet" xlink:type="arc" weight="1" />
      <link:calculationArc order="2" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaapDeferredTaxAssetsLiabilitiesNet" xlink:to="loc_us-gaapDeferredIncomeTaxLiabilities" xlink:type="arc" weight="-1" />
    </link:calculationLink>
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/IncomeTaxesDetailsNarrative" xlink:title="00000070 - Disclosure - 17. INCOME TAXES (Details Narrative)" />
    <link:calculationLink xlink:type="extended" xlink:role="http://envisionsolar.com/role/RelatedPartyTransactionsDetailsNarrative" xlink:title="00000071 - Disclosure - 18. RELATED PARTY TRANSACTIONS (Details Narrative)" />
</link:linkbase>
