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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001491790-10-000003.txt : 20100601
<SEC-HEADER>0001491790-10-000003.hdr.sgml : 20100531
<ACCEPTANCE-DATETIME>20100601084410
ACCESSION NUMBER:		0001491790-10-000003
CONFORMED SUBMISSION TYPE:	D/A
PUBLIC DOCUMENT COUNT:		1
ITEM INFORMATION:		Rule 506
ITEM INFORMATION:		Investment Company Act Section 3(c)
ITEM INFORMATION:		Section 3(c)(1)
ITEM INFORMATION:		Section 3(c)(7)
FILED AS OF DATE:		20100601
DATE AS OF CHANGE:		20100601
EFFECTIVENESS DATE:		20100601

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Energy Capital Partners II (EquiPower Co-Invest), LP
		CENTRAL INDEX KEY:			0001491790
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		D/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	021-142015
		FILM NUMBER:		10868152

	BUSINESS ADDRESS:	
		STREET 1:		C/OENERGY CAPITAL PARTNERS MANAGEMENT II
		STREET 2:		51 JOHN F. KENNEDY PARKWAY, SUITE 200
		CITY:			SHORT HILLS
		STATE:			NJ
		ZIP:			07078
		BUSINESS PHONE:		(973) 671-6108

	MAIL ADDRESS:	
		STREET 1:		C/OENERGY CAPITAL PARTNERS MANAGEMENT II
		STREET 2:		51 JOHN F. KENNEDY PARKWAY, SUITE 200
		CITY:			SHORT HILLS
		STATE:			NJ
		ZIP:			07078
</SEC-HEADER>
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        <entityName>Energy Capital Partners II (EquiPower Co-Invest), LP</entityName>
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            <street1>C/O ENERGY CAPITAL PARTNERS II, LLC</street1>
            <street2>51 JOHN F. KENNEDY PARKWAY, SUITE 200</street2>
            <city>SHORT HILLS</city>
            <stateOrCountry>NJ</stateOrCountry>
            <stateOrCountryDescription>NEW JERSEY</stateOrCountryDescription>
            <zipCode>07078</zipCode>
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                <lastName>Energy Capital Partners GP II Co-Iinvestment, LLC</lastName>
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                <street2>51 John F. Kennedy Parkway, Suite 200</street2>
                <city>Short Hills</city>
                <stateOrCountry>NJ</stateOrCountry>
                <stateOrCountryDescription>NEW JERSEY</stateOrCountryDescription>
                <zipCode>07078</zipCode>
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                <street1>11943 El Camino Real</street1>
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    <offeringData>
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            <industryGroupType>Pooled Investment Fund</industryGroupType>
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                <is40Act>false</is40Act>
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        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
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        <federalExemptionsExclusions>
            <item>06</item>
            <item>3C</item>
            <item>3C.1</item>
            <item>3C.7</item>
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                <isAmendment>true</isAmendment>
                <previousAccessionNumber>0001491790-10-000002</previousAccessionNumber>
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            <dateOfFirstSale>
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        <durationOfOffering>
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        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
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