<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with Wdesk from Workiva-->
<!--Copyright 2021 Workiva-->
<!--r:a2dab1d3-4e16-47e2-8a73-2a0ba3ee7513,g:8114561b-1270-47a5-a418-84b728e843a1-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef roleURI="http://www.centerpointenergy.com/role/CondensedStatementsofConsolidatedIncome" xlink:type="simple" xlink:href="cnp-20210630.xsd#CondensedStatementsofConsolidatedIncome"/>
  <link:calculationLink xlink:role="http://www.centerpointenergy.com/role/CondensedStatementsofConsolidatedIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_f6a7c82d-a0ae-4021-bc71-3a0158ad7470" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_16b9c93d-6544-49c9-87e5-e59a93ad071d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Revenues"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_f6a7c82d-a0ae-4021-bc71-3a0158ad7470" xlink:to="loc_us-gaap_Revenues_16b9c93d-6544-49c9-87e5-e59a93ad071d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_2e61b884-78f7-405b-aebc-83d36770d507" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostsAndExpenses"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OperatingIncomeLoss_f6a7c82d-a0ae-4021-bc71-3a0158ad7470" xlink:to="loc_us-gaap_CostsAndExpenses_2e61b884-78f7-405b-aebc-83d36770d507" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperations_119875ea-5694-4f62-b68d-14bba66ed520" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperations"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_71dcdb4d-4472-411f-a517-0bf7769b1f7f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_119875ea-5694-4f62-b68d-14bba66ed520" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_71dcdb4d-4472-411f-a517-0bf7769b1f7f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_197d9334-114e-4fcc-96ca-d40e48b5b062" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperations_119875ea-5694-4f62-b68d-14bba66ed520" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_197d9334-114e-4fcc-96ca-d40e48b5b062" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_cb6b7e70-80fb-4b45-abd4-ef8bab170da3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestAndDebtExpense_4d7685e6-0568-43a4-a562-3c784ed252b4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestAndDebtExpense"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_cb6b7e70-80fb-4b45-abd4-ef8bab170da3" xlink:to="loc_us-gaap_InterestAndDebtExpense_4d7685e6-0568-43a4-a562-3c784ed252b4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_InterestOnTransitionAndSystemRestorationBonds_47aa0d55-6ad2-40ba-9b3e-9a31130fd01a" xlink:href="cnp-20210630.xsd#cnp_InterestOnTransitionAndSystemRestorationBonds"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_cb6b7e70-80fb-4b45-abd4-ef8bab170da3" xlink:to="loc_cnp_InterestOnTransitionAndSystemRestorationBonds_47aa0d55-6ad2-40ba-9b3e-9a31130fd01a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherNonoperatingIncomeExpense_1e87658e-fa10-4640-a574-ef2d48444d00" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherNonoperatingIncomeExpense"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_cb6b7e70-80fb-4b45-abd4-ef8bab170da3" xlink:to="loc_us-gaap_OtherNonoperatingIncomeExpense_1e87658e-fa10-4640-a574-ef2d48444d00" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesGainLoss_a7bb03c7-01f8-48e1-9d45-ba727516b1e0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MarketableSecuritiesGainLoss"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_cb6b7e70-80fb-4b45-abd4-ef8bab170da3" xlink:to="loc_us-gaap_MarketableSecuritiesGainLoss_a7bb03c7-01f8-48e1-9d45-ba727516b1e0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_GainLossOnIndexedDebtSecurities_54c795e1-7736-45ca-af55-626ea77b2d07" xlink:href="cnp-20210630.xsd#cnp_GainLossOnIndexedDebtSecurities"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_cb6b7e70-80fb-4b45-abd4-ef8bab170da3" xlink:to="loc_cnp_GainLossOnIndexedDebtSecurities_54c795e1-7736-45ca-af55-626ea77b2d07" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_2f5c53a2-4d99-49ff-8f65-b9babb00edc5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NonoperatingIncomeExpense_cb6b7e70-80fb-4b45-abd4-ef8bab170da3" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_2f5c53a2-4d99-49ff-8f65-b9babb00edc5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_ff3ac078-2670-4449-9b8f-54cb28433b89" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_cd6b6729-1f3c-4122-80b9-e89b026893ab" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_ff3ac078-2670-4449-9b8f-54cb28433b89" xlink:to="loc_us-gaap_OperatingIncomeLoss_cd6b6729-1f3c-4122-80b9-e89b026893ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_ab2f340c-53ef-422f-b03c-3fe67ba3f8b7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_ff3ac078-2670-4449-9b8f-54cb28433b89" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_ab2f340c-53ef-422f-b03c-3fe67ba3f8b7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxExpenseBenefit_77dd497c-dcce-4a33-990e-5c01a1d3b4b2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_ff3ac078-2670-4449-9b8f-54cb28433b89" xlink:to="loc_us-gaap_IncomeTaxExpenseBenefit_77dd497c-dcce-4a33-990e-5c01a1d3b4b2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_58b1354a-c4bb-4caf-9dd9-3c47c19ae2bc" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLoss_ff3ac078-2670-4449-9b8f-54cb28433b89" xlink:to="loc_us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity_58b1354a-c4bb-4caf-9dd9-3c47c19ae2bc" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Revenues_bb4c22b4-382e-4f66-a2ef-dd763130c5af" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Revenues"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatedOperatingRevenue_7913f68e-04e6-4ab6-8911-f2001179ca1c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RegulatedOperatingRevenue"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_bb4c22b4-382e-4f66-a2ef-dd763130c5af" xlink:to="loc_us-gaap_RegulatedOperatingRevenue_7913f68e-04e6-4ab6-8911-f2001179ca1c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnregulatedOperatingRevenue_14d41b8a-103c-4cad-b29e-e301ccf93977" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UnregulatedOperatingRevenue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Revenues_bb4c22b4-382e-4f66-a2ef-dd763130c5af" xlink:to="loc_us-gaap_UnregulatedOperatingRevenue_14d41b8a-103c-4cad-b29e-e301ccf93977" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostsAndExpenses_0386b285-3cfd-4a30-987e-815eaf3eae8e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostsAndExpenses"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_79dd7365-7a07-4cae-9aa7-7a541cb68d0b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0386b285-3cfd-4a30-987e-815eaf3eae8e" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseGasAndPetroleumPurchased_79dd7365-7a07-4cae-9aa7-7a541cb68d0b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CostOfGoodsAndServicesSold_37ab5a8b-abe1-44b6-b508-88335b9f4418" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CostOfGoodsAndServicesSold"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0386b285-3cfd-4a30-987e-815eaf3eae8e" xlink:to="loc_us-gaap_CostOfGoodsAndServicesSold_37ab5a8b-abe1-44b6-b508-88335b9f4418" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses_8793139f-f16d-4fe0-bf16-3180f92cf4f1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0386b285-3cfd-4a30-987e-815eaf3eae8e" xlink:to="loc_us-gaap_UtilitiesOperatingExpenseMaintenanceOperationsAndOtherCostsAndExpenses_8793139f-f16d-4fe0-bf16-3180f92cf4f1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_10ebc0c4-e4fc-416f-a281-20382b92d672" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0386b285-3cfd-4a30-987e-815eaf3eae8e" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_10ebc0c4-e4fc-416f-a281-20382b92d672" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesExcludingIncomeAndExciseTaxes_16969e19-f08f-4cac-9462-7a378281a712" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TaxesExcludingIncomeAndExciseTaxes"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0386b285-3cfd-4a30-987e-815eaf3eae8e" xlink:to="loc_us-gaap_TaxesExcludingIncomeAndExciseTaxes_16969e19-f08f-4cac-9462-7a378281a712" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_1888af86-4b62-477a-acff-06159cb1d025" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillImpairmentLoss"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CostsAndExpenses_0386b285-3cfd-4a30-987e-815eaf3eae8e" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_1888af86-4b62-477a-acff-06159cb1d025" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_02c28737-b419-40a2-a78b-b57c3e697948" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OperatingIncomeLoss_e499fd10-61c9-49a0-979b-351b5235fe78" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OperatingIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_02c28737-b419-40a2-a78b-b57c3e697948" xlink:to="loc_us-gaap_OperatingIncomeLoss_e499fd10-61c9-49a0-979b-351b5235fe78" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NonoperatingIncomeExpense_e238f400-e2a7-4ebd-9598-9d2a9700f1fd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NonoperatingIncomeExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest_02c28737-b419-40a2-a78b-b57c3e697948" xlink:to="loc_us-gaap_NonoperatingIncomeExpense_e238f400-e2a7-4ebd-9598-9d2a9700f1fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareDiluted_e7157b2f-ab9b-459e-bafd-ccd7395d3a3a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareDiluted"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_35a2fc76-4306-497f-88f1-a9cd77759707" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareDiluted_e7157b2f-ab9b-459e-bafd-ccd7395d3a3a" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare_35a2fc76-4306-497f-88f1-a9cd77759707" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare_d6f2407f-d516-4840-a001-1149c0702bc0" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareDiluted_e7157b2f-ab9b-459e-bafd-ccd7395d3a3a" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare_d6f2407f-d516-4840-a001-1149c0702bc0" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_86fd21a5-ce4a-4567-bffc-7e8564128b8d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_bd7ab192-ef1d-42cb-87e2-a82a1a5d783b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_86fd21a5-ce4a-4567-bffc-7e8564128b8d" xlink:to="loc_us-gaap_NetIncomeLoss_bd7ab192-ef1d-42cb-87e2-a82a1a5d783b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_3a2880a8-4d17-4330-a8dc-021fa8b55efd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockDividendsAndOtherAdjustments"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic_86fd21a5-ce4a-4567-bffc-7e8564128b8d" xlink:to="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_3a2880a8-4d17-4330-a8dc-021fa8b55efd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EarningsPerShareBasic_fcd3a6d8-2ddd-447f-88f5-d7cb769e776c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EarningsPerShareBasic"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_e2c6b9b6-220f-4bf1-9b3d-31aa6ace2c84" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsPerBasicShare"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareBasic_fcd3a6d8-2ddd-447f-88f5-d7cb769e776c" xlink:to="loc_us-gaap_IncomeLossFromContinuingOperationsPerBasicShare_e2c6b9b6-220f-4bf1-9b3d-31aa6ace2c84" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare_32ca2fab-dd3b-40bb-9d4e-26968f4873bb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_EarningsPerShareBasic_fcd3a6d8-2ddd-447f-88f5-d7cb769e776c" xlink:to="loc_us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare_32ca2fab-dd3b-40bb-9d4e-26968f4873bb" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.centerpointenergy.com/role/CondensedStatementsofConsolidatedComprehensiveIncome" xlink:type="simple" xlink:href="cnp-20210630.xsd#CondensedStatementsofConsolidatedComprehensiveIncome"/>
  <link:calculationLink xlink:role="http://www.centerpointenergy.com/role/CondensedStatementsofConsolidatedComprehensiveIncome" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_92529475-14f8-4278-b5e2-45b01b8a27ba" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent_27492f68-1714-43f7-b59a-380166d825c4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_92529475-14f8-4278-b5e2-45b01b8a27ba" xlink:to="loc_us-gaap_OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPortionAttributableToParent_27492f68-1714-43f7-b59a-380166d825c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationToRegulatoryAssetAfterTax_a435ffef-7806-4837-a912-365219d458da" xlink:href="cnp-20210630.xsd#cnp_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationToRegulatoryAssetAfterTax"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_92529475-14f8-4278-b5e2-45b01b8a27ba" xlink:to="loc_cnp_OtherComprehensiveIncomeLossCashFlowHedgeGainLossReclassificationToRegulatoryAssetAfterTax_a435ffef-7806-4837-a912-365219d458da" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OciEquityMethodInvestmentAfterTax_5ed3fde7-fa5a-45af-8268-5423c8e3db7f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OciEquityMethodInvestmentAfterTax"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_92529475-14f8-4278-b5e2-45b01b8a27ba" xlink:to="loc_us-gaap_OciEquityMethodInvestmentAfterTax_5ed3fde7-fa5a-45af-8268-5423c8e3db7f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_ComprehensiveIncomeNetofTaxBeforePreferredStockDividend_3f7cfd90-d7b7-42c7-937f-a07f12e34858" xlink:href="cnp-20210630.xsd#cnp_ComprehensiveIncomeNetofTaxBeforePreferredStockDividend"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_ffd3dd5b-984b-4c18-8139-d35cc04f52a5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cnp_ComprehensiveIncomeNetofTaxBeforePreferredStockDividend_3f7cfd90-d7b7-42c7-937f-a07f12e34858" xlink:to="loc_us-gaap_NetIncomeLoss_ffd3dd5b-984b-4c18-8139-d35cc04f52a5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_f5963cfd-1a3c-4fbc-9a0a-6557cd83566c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cnp_ComprehensiveIncomeNetofTaxBeforePreferredStockDividend_3f7cfd90-d7b7-42c7-937f-a07f12e34858" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent_f5963cfd-1a3c-4fbc-9a0a-6557cd83566c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ComprehensiveIncomeNetOfTax_20c30300-91da-4180-be1d-7b3822d28966" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ComprehensiveIncomeNetOfTax"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_65ab959c-e43c-46ab-8d23-8cf315f49657" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockDividendsAndOtherAdjustments"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_20c30300-91da-4180-be1d-7b3822d28966" xlink:to="loc_us-gaap_PreferredStockDividendsAndOtherAdjustments_65ab959c-e43c-46ab-8d23-8cf315f49657" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_ComprehensiveIncomeNetofTaxBeforePreferredStockDividend_b44d5cba-808b-4dc3-b3ce-0a83f1e4693f" xlink:href="cnp-20210630.xsd#cnp_ComprehensiveIncomeNetofTaxBeforePreferredStockDividend"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_ComprehensiveIncomeNetOfTax_20c30300-91da-4180-be1d-7b3822d28966" xlink:to="loc_cnp_ComprehensiveIncomeNetofTaxBeforePreferredStockDividend_b44d5cba-808b-4dc3-b3ce-0a83f1e4693f" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.centerpointenergy.com/role/CondensedConsolidatedBalanceSheets" xlink:type="simple" xlink:href="cnp-20210630.xsd#CondensedConsolidatedBalanceSheets"/>
  <link:calculationLink xlink:role="http://www.centerpointenergy.com/role/CondensedConsolidatedBalanceSheets" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_cnp_AssetsNoncurrentOtherThanPropertyPlantAndEquipment_9cf014bf-5683-4eaf-aff7-a0e2f6b22349" xlink:href="cnp-20210630.xsd#cnp_AssetsNoncurrentOtherThanPropertyPlantAndEquipment"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherAssetsNoncurrent_c9e2883f-5d7c-4daf-8ad8-e3b874e2d030" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherAssetsNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cnp_AssetsNoncurrentOtherThanPropertyPlantAndEquipment_9cf014bf-5683-4eaf-aff7-a0e2f6b22349" xlink:to="loc_us-gaap_OtherAssetsNoncurrent_c9e2883f-5d7c-4daf-8ad8-e3b874e2d030" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestments_3ceb7312-7078-4e54-81d9-be422a9432fe" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityMethodInvestments"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cnp_AssetsNoncurrentOtherThanPropertyPlantAndEquipment_9cf014bf-5683-4eaf-aff7-a0e2f6b22349" xlink:to="loc_us-gaap_EquityMethodInvestments_3ceb7312-7078-4e54-81d9-be422a9432fe" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryAssetsNoncurrent_6467160c-a32b-4b23-af68-7a486cfbdec2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RegulatoryAssetsNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cnp_AssetsNoncurrentOtherThanPropertyPlantAndEquipment_9cf014bf-5683-4eaf-aff7-a0e2f6b22349" xlink:to="loc_us-gaap_RegulatoryAssetsNoncurrent_6467160c-a32b-4b23-af68-7a486cfbdec2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Goodwill_e116aacd-8f3e-4c4f-8353-dcd292f757ab" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Goodwill"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cnp_AssetsNoncurrentOtherThanPropertyPlantAndEquipment_9cf014bf-5683-4eaf-aff7-a0e2f6b22349" xlink:to="loc_us-gaap_Goodwill_e116aacd-8f3e-4c4f-8353-dcd292f757ab" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_c4678cc3-1c0d-4075-b0a1-d2dca74e9a49" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_cnp_AssetsNoncurrentOtherThanPropertyPlantAndEquipment_9cf014bf-5683-4eaf-aff7-a0e2f6b22349" xlink:to="loc_us-gaap_EquitySecuritiesWithoutReadilyDeterminableFairValueAmount_c4678cc3-1c0d-4075-b0a1-d2dca74e9a49" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_Assets_b9df7b6d-477c-412e-8af2-2e36c9292772" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_Assets"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_AssetsNoncurrentOtherThanPropertyPlantAndEquipment_bc1b3776-5b2f-4ec2-b504-066cd82558a3" xlink:href="cnp-20210630.xsd#cnp_AssetsNoncurrentOtherThanPropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b9df7b6d-477c-412e-8af2-2e36c9292772" xlink:to="loc_cnp_AssetsNoncurrentOtherThanPropertyPlantAndEquipment_bc1b3776-5b2f-4ec2-b504-066cd82558a3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_b3e7039e-f7ed-4e9c-885e-87cc832f498a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b9df7b6d-477c-412e-8af2-2e36c9292772" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentNet_b3e7039e-f7ed-4e9c-885e-87cc832f498a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_2381a846-89ec-4535-adf2-72145af7c627" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_Assets_b9df7b6d-477c-412e-8af2-2e36c9292772" xlink:to="loc_us-gaap_AssetsCurrent_2381a846-89ec-4535-adf2-72145af7c627" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermDebtCurrent_bc025afe-4d25-45bf-8f74-f90f796d8e56" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLongTermDebtCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_us-gaap_OtherLongTermDebtCurrent_bc025afe-4d25-45bf-8f74-f90f796d8e56" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_IndexedDebtCurrent_5ea61377-b5e7-40ce-9429-4dd16c8339a1" xlink:href="cnp-20210630.xsd#cnp_IndexedDebtCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_cnp_IndexedDebtCurrent_5ea61377-b5e7-40ce-9429-4dd16c8339a1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ShortTermBorrowings_a7d04f12-9c06-4120-bda4-2cf12ee0f630" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ShortTermBorrowings"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_us-gaap_ShortTermBorrowings_a7d04f12-9c06-4120-bda4-2cf12ee0f630" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsPayableCurrent_da9ca78b-9df1-4b9d-abc2-8ad0796c659b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsPayableCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_us-gaap_AccountsPayableCurrent_da9ca78b-9df1-4b9d-abc2-8ad0796c659b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_TransitionAndSystemRestorationBondsLongTermDebtCurrent_bb90b0d1-9c82-4d75-83c3-0b4af2829527" xlink:href="cnp-20210630.xsd#cnp_TransitionAndSystemRestorationBondsLongTermDebtCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_cnp_TransitionAndSystemRestorationBondsLongTermDebtCurrent_bb90b0d1-9c82-4d75-83c3-0b4af2829527" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DividendsPayableCurrent_7a114dcc-efd6-4dac-8458-39ed12bbfc74" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DividendsPayableCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_us-gaap_DividendsPayableCurrent_7a114dcc-efd6-4dac-8458-39ed12bbfc74" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesCurrent_e620643c-0302-430c-baaa-decb5f127cb8" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesCurrent"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_us-gaap_OtherLiabilitiesCurrent_e620643c-0302-430c-baaa-decb5f127cb8" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesCurrent_c3604f10-d6c9-4f4a-951f-64080c3a4fde" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeLiabilitiesCurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_us-gaap_DerivativeLiabilitiesCurrent_c3604f10-d6c9-4f4a-951f-64080c3a4fde" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InterestPayableCurrent_f68b66ea-8b80-4d29-bb97-5059ec9ffe8d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InterestPayableCurrent"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_us-gaap_InterestPayableCurrent_f68b66ea-8b80-4d29-bb97-5059ec9ffe8d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ContractWithCustomerLiabilityCurrent_9ecb01f5-5338-4fc7-a861-4cf654742476" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_us-gaap_ContractWithCustomerLiabilityCurrent_9ecb01f5-5338-4fc7-a861-4cf654742476" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_TaxesPayableCurrent_70472a56-44d4-44d3-9f63-63452077d635" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_TaxesPayableCurrent"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_us-gaap_TaxesPayableCurrent_70472a56-44d4-44d3-9f63-63452077d635" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_IndexedDebtSecuritiesDerivative_e38f99a6-884a-4ce8-9c4f-8a9532573c5e" xlink:href="cnp-20210630.xsd#cnp_IndexedDebtSecuritiesDerivative"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_cnp_IndexedDebtSecuritiesDerivative_e38f99a6-884a-4ce8-9c4f-8a9532573c5e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DueToRelatedPartiesCurrent_ddf8a210-7697-4359-b3d3-01df2da78b9d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueToRelatedPartiesCurrent"/>
    <link:calculationArc order="13" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_us-gaap_DueToRelatedPartiesCurrent_ddf8a210-7697-4359-b3d3-01df2da78b9d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_55fea18e-5d8e-473b-8259-332d64d8c183" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesCurrent_11fcd8f7-5d71-4c97-a5a0-b562e5acb5f9" xlink:to="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_55fea18e-5d8e-473b-8259-332d64d8c183" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsCurrent_1b03f175-f6fe-4370-b28e-5e8e55f7a16f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesCurrent_028ea361-5b15-4349-b90f-b481a0eddee3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MarketableSecuritiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_1b03f175-f6fe-4370-b28e-5e8e55f7a16f" xlink:to="loc_us-gaap_MarketableSecuritiesCurrent_028ea361-5b15-4349-b90f-b481a0eddee3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_a6ce0032-5f76-46ba-a910-7a8572f9d7ac" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_1b03f175-f6fe-4370-b28e-5e8e55f7a16f" xlink:to="loc_us-gaap_CashAndCashEquivalentsAtCarryingValue_a6ce0032-5f76-46ba-a910-7a8572f9d7ac" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EnergyRelatedInventoryNaturalGasInStorage_5629902c-d36e-4174-9c5d-f7459b821454" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EnergyRelatedInventoryNaturalGasInStorage"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_1b03f175-f6fe-4370-b28e-5e8e55f7a16f" xlink:to="loc_us-gaap_EnergyRelatedInventoryNaturalGasInStorage_5629902c-d36e-4174-9c5d-f7459b821454" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccountsReceivableNetCurrent_12c80378-db2e-43e8-b2f4-117414f9918f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccountsReceivableNetCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_1b03f175-f6fe-4370-b28e-5e8e55f7a16f" xlink:to="loc_us-gaap_AccountsReceivableNetCurrent_12c80378-db2e-43e8-b2f4-117414f9918f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeTaxesReceivable_18d790b2-cc06-40a9-a577-4847f6d1eb21" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeTaxesReceivable"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_1b03f175-f6fe-4370-b28e-5e8e55f7a16f" xlink:to="loc_us-gaap_IncomeTaxesReceivable_18d790b2-cc06-40a9-a577-4847f6d1eb21" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_b5635247-7cd3-4200-aa0e-bda18b64319d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PrepaidExpenseAndOtherAssetsCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_1b03f175-f6fe-4370-b28e-5e8e55f7a16f" xlink:to="loc_us-gaap_PrepaidExpenseAndOtherAssetsCurrent_b5635247-7cd3-4200-aa0e-bda18b64319d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryRawMaterialsAndSupplies_02e1cd82-0806-48b8-93b3-81e8a0a25c6e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryRawMaterialsAndSupplies"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_1b03f175-f6fe-4370-b28e-5e8e55f7a16f" xlink:to="loc_us-gaap_InventoryRawMaterialsAndSupplies_02e1cd82-0806-48b8-93b3-81e8a0a25c6e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_UnbilledReceivablesCurrent_7c68c444-38a8-46b0-9f73-d5267d60ca32" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_UnbilledReceivablesCurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_1b03f175-f6fe-4370-b28e-5e8e55f7a16f" xlink:to="loc_us-gaap_UnbilledReceivablesCurrent_7c68c444-38a8-46b0-9f73-d5267d60ca32" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DueFromRelatedPartiesCurrent_32c918b3-6cdd-4433-8e59-473ece1d3be7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DueFromRelatedPartiesCurrent"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_1b03f175-f6fe-4370-b28e-5e8e55f7a16f" xlink:to="loc_us-gaap_DueFromRelatedPartiesCurrent_32c918b3-6cdd-4433-8e59-473ece1d3be7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_48e3f8ca-a745-4833-a50a-97623c7e811b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_1b03f175-f6fe-4370-b28e-5e8e55f7a16f" xlink:to="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_48e3f8ca-a745-4833-a50a-97623c7e811b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeAssetsCurrent_a38b3b2e-c5b7-47c0-a1d0-144f4bd11764" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeAssetsCurrent"/>
    <link:calculationArc order="11" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsCurrent_1b03f175-f6fe-4370-b28e-5e8e55f7a16f" xlink:to="loc_us-gaap_DerivativeAssetsCurrent_a38b3b2e-c5b7-47c0-a1d0-144f4bd11764" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_59681f5f-4408-467f-815d-84945c9d156e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLongTermDebtNoncurrent_b314025c-e196-4e33-be84-a90180b409e2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLongTermDebtNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtNoncurrent_59681f5f-4408-467f-815d-84945c9d156e" xlink:to="loc_us-gaap_OtherLongTermDebtNoncurrent_b314025c-e196-4e33-be84-a90180b409e2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_TransitionAndSystemRestorationBondsLongTermDebtNonCurrent_ba05c3e4-8b2d-4ce0-8049-863a84999892" xlink:href="cnp-20210630.xsd#cnp_TransitionAndSystemRestorationBondsLongTermDebtNonCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LongTermDebtNoncurrent_59681f5f-4408-467f-815d-84945c9d156e" xlink:to="loc_cnp_TransitionAndSystemRestorationBondsLongTermDebtNonCurrent_ba05c3e4-8b2d-4ce0-8049-863a84999892" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent_0a10586f-2917-456d-a9a7-75b21245d9d5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_30db4379-c204-4823-b4b0-b3af3c059442" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxLiabilitiesNet"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent_0a10586f-2917-456d-a9a7-75b21245d9d5" xlink:to="loc_us-gaap_DeferredIncomeTaxLiabilitiesNet_30db4379-c204-4823-b4b0-b3af3c059442" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DerivativeLiabilitiesNoncurrent_8b8cd85c-0b22-48a8-97b1-1ec2d2c97a5f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DerivativeLiabilitiesNoncurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent_0a10586f-2917-456d-a9a7-75b21245d9d5" xlink:to="loc_us-gaap_DerivativeLiabilitiesNoncurrent_8b8cd85c-0b22-48a8-97b1-1ec2d2c97a5f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_ccab0a14-f58e-4c78-b59d-ddccde379ade" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent_0a10586f-2917-456d-a9a7-75b21245d9d5" xlink:to="loc_us-gaap_PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent_ccab0a14-f58e-4c78-b59d-ddccde379ade" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RegulatoryLiabilityNoncurrent_773425f4-4283-4dd1-aef4-9a6de7a17c1e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RegulatoryLiabilityNoncurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent_0a10586f-2917-456d-a9a7-75b21245d9d5" xlink:to="loc_us-gaap_RegulatoryLiabilityNoncurrent_773425f4-4283-4dd1-aef4-9a6de7a17c1e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherLiabilitiesNoncurrent_e30a02a9-c8f6-464a-bd56-3ae32d7e65ad" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherLiabilitiesNoncurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent_0a10586f-2917-456d-a9a7-75b21245d9d5" xlink:to="loc_us-gaap_OtherLiabilitiesNoncurrent_e30a02a9-c8f6-464a-bd56-3ae32d7e65ad" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentNet_58b3ec12-61f0-4d1a-b294-96e73651c049" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_a6aec5dd-8af3-40ab-8a3a-7b429f3b043b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_58b3ec12-61f0-4d1a-b294-96e73651c049" xlink:to="loc_us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment_a6aec5dd-8af3-40ab-8a3a-7b429f3b043b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PropertyPlantAndEquipmentGross_90572416-7a14-4774-bb44-98695f93d689" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PropertyPlantAndEquipmentGross"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_PropertyPlantAndEquipmentNet_58b3ec12-61f0-4d1a-b294-96e73651c049" xlink:to="loc_us-gaap_PropertyPlantAndEquipmentGross_90572416-7a14-4774-bb44-98695f93d689" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesAndStockholdersEquity_7412a861-2f78-4eea-8f91-76f0d8521208" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LongTermDebtNoncurrent_b799e869-ae02-41c2-8569-a4cf33df9a19" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LongTermDebtNoncurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_7412a861-2f78-4eea-8f91-76f0d8521208" xlink:to="loc_us-gaap_LongTermDebtNoncurrent_b799e869-ae02-41c2-8569-a4cf33df9a19" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesCurrent_7d8d699c-f91d-4ca9-8c04-999ed3c41f58" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_7412a861-2f78-4eea-8f91-76f0d8521208" xlink:to="loc_us-gaap_LiabilitiesCurrent_7d8d699c-f91d-4ca9-8c04-999ed3c41f58" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent_a3c1b588-eb80-4a7d-899d-742582d7ede2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_7412a861-2f78-4eea-8f91-76f0d8521208" xlink:to="loc_us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent_a3c1b588-eb80-4a7d-899d-742582d7ede2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_776209e6-91b7-41f7-9c2b-439224c45ca2" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_7412a861-2f78-4eea-8f91-76f0d8521208" xlink:to="loc_us-gaap_StockholdersEquity_776209e6-91b7-41f7-9c2b-439224c45ca2" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommitmentsAndContingencies_6c2c3849-0b60-4e49-b86a-e2b63fdefd93" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommitmentsAndContingencies"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesAndStockholdersEquity_7412a861-2f78-4eea-8f91-76f0d8521208" xlink:to="loc_us-gaap_CommitmentsAndContingencies_6c2c3849-0b60-4e49-b86a-e2b63fdefd93" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_StockholdersEquity_60c1911d-e85d-4342-808b-6c127ee67512" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_StockholdersEquity"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AdditionalPaidInCapital_aa5f8055-743d-496b-8c6e-39c7e1416cf1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AdditionalPaidInCapital"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_60c1911d-e85d-4342-808b-6c127ee67512" xlink:to="loc_us-gaap_AdditionalPaidInCapital_aa5f8055-743d-496b-8c6e-39c7e1416cf1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CommonStockValue_d4daed85-be19-4e5d-9465-f313af2ae395" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CommonStockValue"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_60c1911d-e85d-4342-808b-6c127ee67512" xlink:to="loc_us-gaap_CommonStockValue_d4daed85-be19-4e5d-9465-f313af2ae395" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RetainedEarningsAccumulatedDeficit_8ea7c036-a251-456f-8633-92b475b870f5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_60c1911d-e85d-4342-808b-6c127ee67512" xlink:to="loc_us-gaap_RetainedEarningsAccumulatedDeficit_8ea7c036-a251-456f-8633-92b475b870f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_ac1127ef-e32a-4467-826b-e85c1d1738d4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_60c1911d-e85d-4342-808b-6c127ee67512" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax_ac1127ef-e32a-4467-826b-e85c1d1738d4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PreferredStockValue_8d8658a9-6a02-47a2-b069-4c509d46cc60" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PreferredStockValue"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_StockholdersEquity_60c1911d-e85d-4342-808b-6c127ee67512" xlink:to="loc_us-gaap_PreferredStockValue_8d8658a9-6a02-47a2-b069-4c509d46cc60" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.centerpointenergy.com/role/CondensedStatementsofConsolidatedCashFlows" xlink:type="simple" xlink:href="cnp-20210630.xsd#CondensedStatementsofConsolidatedCashFlows"/>
  <link:calculationLink xlink:role="http://www.centerpointenergy.com/role/CondensedStatementsofConsolidatedCashFlows" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_ada6d05b-31e7-418b-b281-a374343ac33d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_ProceedsFromPaymentsForOtherFinancingActivities_ada6d05b-31e7-418b-b281-a374343ac33d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_ffd8a204-2647-4c73-ae88-9fbef3c65686" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfCommercialPaper"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfCommercialPaper_ffd8a204-2647-4c73-ae88-9fbef3c65686" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_f9ab8c94-be0d-44de-883a-b90fa4b79720" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfLongTermDebt"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfLongTermDebt_f9ab8c94-be0d-44de-883a-b90fa4b79720" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLongTermDebt_97f99904-2d4d-4f8d-b092-63225170ad7a" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt"/>
    <link:calculationArc order="4" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_RepaymentsOfLongTermDebt_97f99904-2d4d-4f8d-b092-63225170ad7a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDebtIssuanceCosts_a4d92c05-0462-40bc-a7f7-b79c8516c0f5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfDebtIssuanceCosts"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_PaymentsOfDebtIssuanceCosts_a4d92c05-0462-40bc-a7f7-b79c8516c0f5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsCommonStock_64d6208d-ac90-4488-a277-4adf0ff4b71f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfDividendsCommonStock"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_PaymentsOfDividendsCommonStock_64d6208d-ac90-4488-a277-4adf0ff4b71f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_30d1ffc1-a5cf-41ae-8801-b41a5764f00b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_PaymentsOfDividendsPreferredStockAndPreferenceStock_30d1ffc1-a5cf-41ae-8801-b41a5764f00b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsOfDividends_7772a32b-4adb-4f81-8665-cc3f108b3163" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsOfDividends"/>
    <link:calculationArc order="8" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_PaymentsOfDividends_7772a32b-4adb-4f81-8665-cc3f108b3163" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInNotesPayableRelatedParties_98afd01b-35a9-4478-90cf-3a24021f9193" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInNotesPayableRelatedParties"/>
    <link:calculationArc order="9" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_IncreaseDecreaseInNotesPayableRelatedParties_98afd01b-35a9-4478-90cf-3a24021f9193" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromLinesOfCredit_c5fc84b5-8583-4745-bc97-32cf2c823fb3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromLinesOfCredit"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_ProceedsFromLinesOfCredit_c5fc84b5-8583-4745-bc97-32cf2c823fb3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_CapitalDistributionToParentAssociatedWithTheSaleOfCES_bae1e815-af68-4f6e-86ed-a76d94d4e960" xlink:href="cnp-20210630.xsd#cnp_CapitalDistributionToParentAssociatedWithTheSaleOfCES"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_cnp_CapitalDistributionToParentAssociatedWithTheSaleOfCES_bae1e815-af68-4f6e-86ed-a76d94d4e960" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromRepaymentsOfOtherDebt_a5d6db06-faa8-46a1-bbc4-23106afb7a17" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfOtherDebt"/>
    <link:calculationArc order="12" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_ProceedsFromRepaymentsOfOtherDebt_a5d6db06-faa8-46a1-bbc4-23106afb7a17" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_RepaymentsOfLinesOfCredit_1ee932a8-373c-48d3-868d-0bf1aa43f71e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_RepaymentsOfLinesOfCredit"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_RepaymentsOfLinesOfCredit_1ee932a8-373c-48d3-868d-0bf1aa43f71e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_93412863-601e-4b49-ade9-1297c6e6d818" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfCommonStock"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfCommonStock_93412863-601e-4b49-ade9-1297c6e6d818" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_649d7d85-9d9f-4f93-8e3f-6e9841a88f76" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock"/>
    <link:calculationArc order="15" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_4eae56c9-a952-4f0d-86d2-a15307407c54" xlink:to="loc_us-gaap_ProceedsFromIssuanceOfPreferredStockAndPreferenceStock_649d7d85-9d9f-4f93-8e3f-6e9841a88f76" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetIncomeLoss_19cf7135-1ef1-45c2-9548-8a96b1125ddd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetIncomeLoss"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_NetIncomeLoss_19cf7135-1ef1-45c2-9548-8a96b1125ddd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DepreciationDepletionAndAmortization_32c22ee4-bf4d-48c8-97e0-73c2e9c770d3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DepreciationDepletionAndAmortization"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_DepreciationDepletionAndAmortization_32c22ee4-bf4d-48c8-97e0-73c2e9c770d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfFinancingCosts_3d18eda1-8c9a-4504-a864-617c6a5e7ef6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmortizationOfFinancingCosts"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_AmortizationOfFinancingCosts_3d18eda1-8c9a-4504-a864-617c6a5e7ef6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_48d6d4cb-148b-466e-bd50-e0afc1a7309c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_DeferredIncomeTaxExpenseBenefit_48d6d4cb-148b-466e-bd50-e0afc1a7309c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables_d5b0e294-6016-44f2-87a5-e70bc78d1c13" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsAndOtherReceivables_d5b0e294-6016-44f2-87a5-e70bc78d1c13" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_IncreaseDecreaseInAccountsReceivablePayableAffiliates_15e2aef1-967f-4897-a22f-ffa75888e06e" xlink:href="cnp-20210630.xsd#cnp_IncreaseDecreaseInAccountsReceivablePayableAffiliates"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_cnp_IncreaseDecreaseInAccountsReceivablePayableAffiliates_15e2aef1-967f-4897-a22f-ffa75888e06e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInInventories_0a52fc5e-2991-44b1-bf19-d00fa1bdc1f1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInInventories"/>
    <link:calculationArc order="7" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_IncreaseDecreaseInInventories_0a52fc5e-2991-44b1-bf19-d00fa1bdc1f1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInAccountsPayable_76f93b4d-76f6-41e1-992e-c23690a025d3" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayable"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_IncreaseDecreaseInAccountsPayable_76f93b4d-76f6-41e1-992e-c23690a025d3" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_ea5f4269-52bb-4b93-bb4a-230f56c33c70" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInIncomeTaxesReceivable"/>
    <link:calculationArc order="9" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_IncreaseDecreaseInIncomeTaxesReceivable_ea5f4269-52bb-4b93-bb4a-230f56c33c70" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_IncreaseDecreaseInterestAndTaxesAccrued_7ee1b6f4-9c5f-4467-b767-4a681cbec820" xlink:href="cnp-20210630.xsd#cnp_IncreaseDecreaseInterestAndTaxesAccrued"/>
    <link:calculationArc order="10" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_cnp_IncreaseDecreaseInterestAndTaxesAccrued_7ee1b6f4-9c5f-4467-b767-4a681cbec820" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInDerivativeAssetsAndLiabilities_40d21639-a04d-4f77-9aa2-0a6e55524527" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInDerivativeAssetsAndLiabilities"/>
    <link:calculationArc order="11" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_IncreaseDecreaseInDerivativeAssetsAndLiabilities_40d21639-a04d-4f77-9aa2-0a6e55524527" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_139c355d-eb1d-4989-b973-6ed31c836af1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities"/>
    <link:calculationArc order="12" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_IncreaseDecreaseInRegulatoryAssetsAndLiabilities_139c355d-eb1d-4989-b973-6ed31c836af1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_e27a9214-0cbb-4fec-881a-ce31d4557af1" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherCurrentAssets"/>
    <link:calculationArc order="13" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentAssets_e27a9214-0cbb-4fec-881a-ce31d4557af1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_b975df3e-b816-40db-94e2-3ba2c75150fd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherCurrentLiabilities"/>
    <link:calculationArc order="14" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherCurrentLiabilities_b975df3e-b816-40db-94e2-3ba2c75150fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_e2167689-3d6f-455f-b49b-a88976593055" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentAssets"/>
    <link:calculationArc order="15" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentAssets_e2167689-3d6f-455f-b49b-a88976593055" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_72e3aade-8a69-4b1b-bd9d-35c9eff2c1f9" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities"/>
    <link:calculationArc order="16" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_IncreaseDecreaseInOtherNoncurrentLiabilities_72e3aade-8a69-4b1b-bd9d-35c9eff2c1f9" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_35948bb0-8a50-4079-be8e-80afd20f990f" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_OtherOperatingActivitiesCashFlowStatement"/>
    <link:calculationArc order="17" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_OtherOperatingActivitiesCashFlowStatement_35948bb0-8a50-4079-be8e-80afd20f990f" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AmortizationOfIntangibleAssets_9491379e-b2fb-4a98-9510-8e2996b03a90" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AmortizationOfIntangibleAssets"/>
    <link:calculationArc order="18" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_AmortizationOfIntangibleAssets_9491379e-b2fb-4a98-9510-8e2996b03a90" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_Goodwillimpairmentandlossfromreclassificationtoheldforsale_5da44547-3eac-47ac-a568-7bb689a32829" xlink:href="cnp-20210630.xsd#cnp_Goodwillimpairmentandlossfromreclassificationtoheldforsale"/>
    <link:calculationArc order="19" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_cnp_Goodwillimpairmentandlossfromreclassificationtoheldforsale_5da44547-3eac-47ac-a568-7bb689a32829" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_GoodwillImpairmentLoss_e9c1cf48-2834-4ae2-861e-081476adb0dd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_GoodwillImpairmentLoss"/>
    <link:calculationArc order="20" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_GoodwillImpairmentLoss_e9c1cf48-2834-4ae2-861e-081476adb0dd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments_5610a598-f2c9-4a86-8498-fe31d127feb6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments"/>
    <link:calculationArc order="21" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments_5610a598-f2c9-4a86-8498-fe31d127feb6" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_IndexedDebtSecuritiesGainLoss_14e981d5-175f-4819-ac76-183168738417" xlink:href="cnp-20210630.xsd#cnp_IndexedDebtSecuritiesGainLoss"/>
    <link:calculationArc order="22" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_cnp_IndexedDebtSecuritiesGainLoss_14e981d5-175f-4819-ac76-183168738417" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_InventoryWriteDown_1f5a91a4-02a6-4318-9d13-3992e92b138d" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_InventoryWriteDown"/>
    <link:calculationArc order="23" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_InventoryWriteDown_1f5a91a4-02a6-4318-9d13-3992e92b138d" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncomeLossFromEquityMethodInvestments_425d6ba5-a4b6-42ab-b8f4-06cf0d69f0ca" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncomeLossFromEquityMethodInvestments"/>
    <link:calculationArc order="24" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_IncomeLossFromEquityMethodInvestments_425d6ba5-a4b6-42ab-b8f4-06cf0d69f0ca" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_EquityMethodInvestmentDividendsOrDistributions_74fa94eb-23f4-437f-881d-68b783af4ded" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_EquityMethodInvestmentDividendsOrDistributions"/>
    <link:calculationArc order="25" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_EquityMethodInvestmentDividendsOrDistributions_74fa94eb-23f4-437f-881d-68b783af4ded" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PensionContributions_12b5c706-5ce2-44ac-8d20-d8afbbe92bbd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PensionContributions"/>
    <link:calculationArc order="26" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_PensionContributions_12b5c706-5ce2-44ac-8d20-d8afbbe92bbd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInMarginDepositsOutstanding_164896fd-e769-490c-8891-dec79ed8b20c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInMarginDepositsOutstanding"/>
    <link:calculationArc order="27" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_a89c83b0-a39d-4080-b974-240f385d3436" xlink:to="loc_us-gaap_IncreaseDecreaseInMarginDepositsOutstanding_164896fd-e769-490c-8891-dec79ed8b20c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_57ecbac9-face-46cb-8107-166267422c88" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_2b889f66-872a-4d78-90db-faaa9b1f0e78" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_57ecbac9-face-46cb-8107-166267422c88" xlink:to="loc_us-gaap_NetCashProvidedByUsedInOperatingActivities_2b889f66-872a-4d78-90db-faaa9b1f0e78" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_4b895f77-74fa-4482-9242-a468fad78fd5" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_57ecbac9-face-46cb-8107-166267422c88" xlink:to="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_4b895f77-74fa-4482-9242-a468fad78fd5" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f6f73cdf-dfe2-4586-8619-4fd865f498fd" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect_57ecbac9-face-46cb-8107-166267422c88" xlink:to="loc_us-gaap_NetCashProvidedByUsedInFinancingActivities_f6f73cdf-dfe2-4586-8619-4fd865f498fd" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_4926bf52-f325-443a-9272-276bf05754cb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsToAcquireProductiveAssets_13e8101a-6cee-427b-bfae-74a94b60165b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsToAcquireProductiveAssets"/>
    <link:calculationArc order="1" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_4926bf52-f325-443a-9272-276bf05754cb" xlink:to="loc_us-gaap_PaymentsToAcquireProductiveAssets_13e8101a-6cee-427b-bfae-74a94b60165b" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_IncreaseDecreaseInNotesReceivableRelatedParties_b8fae0eb-86b8-45c1-8581-e279f3cbd625" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_IncreaseDecreaseInNotesReceivableRelatedParties"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_4926bf52-f325-443a-9272-276bf05754cb" xlink:to="loc_us-gaap_IncreaseDecreaseInNotesReceivableRelatedParties_b8fae0eb-86b8-45c1-8581-e279f3cbd625" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_2ef2d5b6-6c1c-429f-a688-fc363a9f6778" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_PaymentsForProceedsFromOtherInvestingActivities"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_4926bf52-f325-443a-9272-276bf05754cb" xlink:to="loc_us-gaap_PaymentsForProceedsFromOtherInvestingActivities_2ef2d5b6-6c1c-429f-a688-fc363a9f6778" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_f41937b9-b027-4196-8108-3bb0c117abec" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_4926bf52-f325-443a-9272-276bf05754cb" xlink:to="loc_us-gaap_ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital_f41937b9-b027-4196-8108-3bb0c117abec" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_3e2cb8cf-647f-4523-9b64-5e3d6378e12b" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_ProceedsFromDivestitureOfBusinesses"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_NetCashProvidedByUsedInInvestingActivities_4926bf52-f325-443a-9272-276bf05754cb" xlink:to="loc_us-gaap_ProceedsFromDivestitureOfBusinesses_3e2cb8cf-647f-4523-9b64-5e3d6378e12b" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.centerpointenergy.com/role/HeldforSaleandDivestituresCenterPointEnergyandCERCScheduleofAssetsandLiabilitiesDetails" xlink:type="simple" xlink:href="cnp-20210630.xsd#HeldforSaleandDivestituresCenterPointEnergyandCERCScheduleofAssetsandLiabilitiesDetails"/>
  <link:calculationLink xlink:role="http://www.centerpointenergy.com/role/HeldforSaleandDivestituresCenterPointEnergyandCERCScheduleofAssetsandLiabilitiesDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_9c48be35-b6ae-45c9-8852-13d432a30f13" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsNaturalGasInventoryCurrent_de83c9ad-1328-4f6e-a759-00880f9171e1" xlink:href="cnp-20210630.xsd#cnp_DisposalGroupIncludingDiscontinuedOperationsNaturalGasInventoryCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_9c48be35-b6ae-45c9-8852-13d432a30f13" xlink:to="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsNaturalGasInventoryCurrent_de83c9ad-1328-4f6e-a759-00880f9171e1" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsRegulatoryAssetsCurrent_d21cd11c-45d0-4b17-b483-d9922ae7957e" xlink:href="cnp-20210630.xsd#cnp_DisposalGroupIncludingDiscontinuedOperationsRegulatoryAssetsCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_9c48be35-b6ae-45c9-8852-13d432a30f13" xlink:to="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsRegulatoryAssetsCurrent_d21cd11c-45d0-4b17-b483-d9922ae7957e" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsContractWithCustomerAssetCurrent_75f41a1e-57f4-42c8-87f9-a1c3b86ad16c" xlink:href="cnp-20210630.xsd#cnp_DisposalGroupIncludingDiscontinuedOperationsContractWithCustomerAssetCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_9c48be35-b6ae-45c9-8852-13d432a30f13" xlink:to="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsContractWithCustomerAssetCurrent_75f41a1e-57f4-42c8-87f9-a1c3b86ad16c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillCurrent_d5664cc2-04dc-4220-8366-a21b8ea66666" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillCurrent"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_9c48be35-b6ae-45c9-8852-13d432a30f13" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationGoodwillCurrent_d5664cc2-04dc-4220-8366-a21b8ea66666" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsMaterialsAndSuppliesCurrent_97c9cda2-e18b-4393-a987-10486394ad6a" xlink:href="cnp-20210630.xsd#cnp_DisposalGroupIncludingDiscontinuedOperationsMaterialsAndSuppliesCurrent"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_9c48be35-b6ae-45c9-8852-13d432a30f13" xlink:to="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsMaterialsAndSuppliesCurrent_97c9cda2-e18b-4393-a987-10486394ad6a" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_a4d83557-ce0a-42ee-9314-1d55235f32c4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_9c48be35-b6ae-45c9-8852-13d432a30f13" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentAssets_a4d83557-ce0a-42ee-9314-1d55235f32c4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_94bc70bd-7bf7-48fb-ba1c-de41f4797bf7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet"/>
    <link:calculationArc order="7" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_9c48be35-b6ae-45c9-8852-13d432a30f13" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsNotesAndLoansReceivableNet_94bc70bd-7bf7-48fb-ba1c-de41f4797bf7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsPropertyPlantAndEquipmentNetCurrent_e3125ec6-08e7-4264-b40a-422fe23f977c" xlink:href="cnp-20210630.xsd#cnp_DisposalGroupIncludingDiscontinuedOperationsPropertyPlantAndEquipmentNetCurrent"/>
    <link:calculationArc order="8" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperationCurrent_9c48be35-b6ae-45c9-8852-13d432a30f13" xlink:to="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsPropertyPlantAndEquipmentNetCurrent_e3125ec6-08e7-4264-b40a-422fe23f977c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_4ced342f-88e2-494c-96a0-0db980b77f74" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsRegulatoryLiabilitiesCurrent_24a5731c-65c1-45f8-b4ef-6df80ce3e068" xlink:href="cnp-20210630.xsd#cnp_DisposalGroupIncludingDiscontinuedOperationsRegulatoryLiabilitiesCurrent"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_4ced342f-88e2-494c-96a0-0db980b77f74" xlink:to="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsRegulatoryLiabilitiesCurrent_24a5731c-65c1-45f8-b4ef-6df80ce3e068" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsShortTermDebtCurrent_fc0394b5-eb0c-4eac-b323-0481d675d8eb" xlink:href="cnp-20210630.xsd#cnp_DisposalGroupIncludingDiscontinuedOperationsShortTermDebtCurrent"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_4ced342f-88e2-494c-96a0-0db980b77f74" xlink:to="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsShortTermDebtCurrent_fc0394b5-eb0c-4eac-b323-0481d675d8eb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_95fe312f-1f6c-4cb2-8e2e-c17b4598f172" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_4ced342f-88e2-494c-96a0-0db980b77f74" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccountsPayableCurrent_95fe312f-1f6c-4cb2-8e2e-c17b4598f172" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedIncomeTaxesPayable_5800ca39-09c7-490a-a0cc-2b42ace5e9cb" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedIncomeTaxesPayable"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_4ced342f-88e2-494c-96a0-0db980b77f74" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationAccruedIncomeTaxesPayable_5800ca39-09c7-490a-a0cc-2b42ace5e9cb" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_afefeb4d-79e3-4292-a734-24d48952eb45" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities"/>
    <link:calculationArc order="5" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_4ced342f-88e2-494c-96a0-0db980b77f74" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherCurrentLiabilities_afefeb4d-79e3-4292-a734-24d48952eb45" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsCustomerDepositsCurrent_c95f381a-73e9-4e61-aa8c-17e6a14e25e1" xlink:href="cnp-20210630.xsd#cnp_DisposalGroupIncludingDiscontinuedOperationsCustomerDepositsCurrent"/>
    <link:calculationArc order="6" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperationCurrent_4ced342f-88e2-494c-96a0-0db980b77f74" xlink:to="loc_cnp_DisposalGroupIncludingDiscontinuedOperationsCustomerDepositsCurrent_c95f381a-73e9-4e61-aa8c-17e6a14e25e1" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.centerpointenergy.com/role/HeldforSaleandDivestituresCenterPointEnergyandCERCDivestituresDetails" xlink:type="simple" xlink:href="cnp-20210630.xsd#HeldforSaleandDivestituresCenterPointEnergyandCERCDivestituresDetails"/>
  <link:calculationLink xlink:role="http://www.centerpointenergy.com/role/HeldforSaleandDivestituresCenterPointEnergyandCERCDivestituresDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_86b085cd-29fa-424d-8d5e-cfbcc98d5652" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_6eafdb5d-e4fa-4c39-a1b1-d0e5341b1726" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_86b085cd-29fa-424d-8d5e-cfbcc98d5652" xlink:to="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold_6eafdb5d-e4fa-4c39-a1b1-d0e5341b1726" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_DisposalGroupIncludingDiscontinuedOperationOperationandMaintenanceExpense_eb14f3d7-0b06-4529-adc3-83526fecfe07" xlink:href="cnp-20210630.xsd#cnp_DisposalGroupIncludingDiscontinuedOperationOperationandMaintenanceExpense"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_86b085cd-29fa-424d-8d5e-cfbcc98d5652" xlink:to="loc_cnp_DisposalGroupIncludingDiscontinuedOperationOperationandMaintenanceExpense_eb14f3d7-0b06-4529-adc3-83526fecfe07" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_cnp_DisposalGroupIncludingDiscontinuedOperationTaxesOtherthanIncomeTaxes_a9a0a31b-01e7-4225-9baa-eced53b8b531" xlink:href="cnp-20210630.xsd#cnp_DisposalGroupIncludingDiscontinuedOperationTaxesOtherthanIncomeTaxes"/>
    <link:calculationArc order="3" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingExpense_86b085cd-29fa-424d-8d5e-cfbcc98d5652" xlink:to="loc_cnp_DisposalGroupIncludingDiscontinuedOperationTaxesOtherthanIncomeTaxes_a9a0a31b-01e7-4225-9baa-eced53b8b531" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.centerpointenergy.com/role/EmployeeBenefitPlansDetails" xlink:type="simple" xlink:href="cnp-20210630.xsd#EmployeeBenefitPlansDetails"/>
  <link:calculationLink xlink:role="http://www.centerpointenergy.com/role/EmployeeBenefitPlansDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_23693f2d-a559-4e4b-a679-5adf660b9f2e" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanServiceCost_fe5984dc-8f18-4bb1-8092-059e9a55df77" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanServiceCost"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_23693f2d-a559-4e4b-a679-5adf660b9f2e" xlink:to="loc_us-gaap_DefinedBenefitPlanServiceCost_fe5984dc-8f18-4bb1-8092-059e9a55df77" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanInterestCost_5a25a8bf-16bf-4a28-89a9-b75b6791c999" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanInterestCost"/>
    <link:calculationArc order="2" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_23693f2d-a559-4e4b-a679-5adf660b9f2e" xlink:to="loc_us-gaap_DefinedBenefitPlanInterestCost_5a25a8bf-16bf-4a28-89a9-b75b6791c999" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_79723481-e135-4e0b-b635-c86c01ce3d7c" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets"/>
    <link:calculationArc order="3" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_23693f2d-a559-4e4b-a679-5adf660b9f2e" xlink:to="loc_us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets_79723481-e135-4e0b-b635-c86c01ce3d7c" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_d802bcb1-b6db-4f68-8a22-ceca4a1a03f7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit"/>
    <link:calculationArc order="4" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_23693f2d-a559-4e4b-a679-5adf660b9f2e" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfPriorServiceCostCredit_d802bcb1-b6db-4f68-8a22-ceca4a1a03f7" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_b3872c6c-8d3a-4513-bd82-e835af2496ee" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses"/>
    <link:calculationArc order="5" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_23693f2d-a559-4e4b-a679-5adf660b9f2e" xlink:to="loc_us-gaap_DefinedBenefitPlanAmortizationOfGainsLosses_b3872c6c-8d3a-4513-bd82-e835af2496ee" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_fa15d16c-dd19-455a-8f7b-e48eff7cdbd6" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1"/>
    <link:calculationArc order="6" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost_23693f2d-a559-4e4b-a679-5adf660b9f2e" xlink:to="loc_us-gaap_DefinedBenefitPlanRecognizedNetGainLossDueToSettlements1_fa15d16c-dd19-455a-8f7b-e48eff7cdbd6" xlink:type="arc"/>
  </link:calculationLink>
  <link:roleRef roleURI="http://www.centerpointenergy.com/role/GoodwillandOtherIntangiblesCenterPointEnergyandCERCDetails" xlink:type="simple" xlink:href="cnp-20210630.xsd#GoodwillandOtherIntangiblesCenterPointEnergyandCERCDetails"/>
  <link:calculationLink xlink:role="http://www.centerpointenergy.com/role/GoodwillandOtherIntangiblesCenterPointEnergyandCERCDetails" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsNet_521993fe-f2ca-4805-b41e-0b1c927302e7" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsNet"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsGross_3b751cd9-7d3d-45a1-bae0-5e1e5b516df4" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsGross"/>
    <link:calculationArc order="1" weight="1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_521993fe-f2ca-4805-b41e-0b1c927302e7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsGross_3b751cd9-7d3d-45a1-bae0-5e1e5b516df4" xlink:type="arc"/>
    <link:loc xlink:type="locator" xlink:label="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_ff14dd3c-c544-4bd7-bafa-5575a2af7266" xlink:href="https://xbrl.fasb.org/us-gaap/2021/elts/us-gaap-2021-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization"/>
    <link:calculationArc order="2" weight="-1.0" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="loc_us-gaap_FiniteLivedIntangibleAssetsNet_521993fe-f2ca-4805-b41e-0b1c927302e7" xlink:to="loc_us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization_ff14dd3c-c544-4bd7-bafa-5575a2af7266" xlink:type="arc"/>
  </link:calculationLink>
</link:linkbase>
