-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
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 ArMNGzdv2zHhrjsZy2ewNQ==

<SEC-DOCUMENT>0000919574-09-015461.txt : 20090929
<SEC-HEADER>0000919574-09-015461.hdr.sgml : 20090929
<ACCEPTANCE-DATETIME>20090929171006
ACCESSION NUMBER:		0000919574-09-015461
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090928
FILED AS OF DATE:		20090929
DATE AS OF CHANGE:		20090929

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FALCONE PHILIP
		CENTRAL INDEX KEY:			0001233569

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12079
		FILM NUMBER:		091093612

	MAIL ADDRESS:	
		STREET 1:		450 PARK AVENUE, 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CALPINE CORP
		CENTRAL INDEX KEY:			0000916457
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		IRS NUMBER:				770212977
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		717 TEXAS AVENUE
		STREET 2:		SUITE 1000
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
		BUSINESS PHONE:		7138308775

	MAIL ADDRESS:	
		STREET 1:		717 TEXAS AVENUE
		STREET 2:		SUITE 1000
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HARBINGER CAPITAL PARTNERS MASTER FUND I, LTD.
		CENTRAL INDEX KEY:			0001233563

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12079
		FILM NUMBER:		091093617

	BUSINESS ADDRESS:	
		STREET 1:		C/O INTERNATIONAL FUND SERVICES LIMITED
		STREET 2:		THIRD FL, BISHOP'S SQUARE REDMOND'S HILL
		CITY:			DUBLIN  2
		STATE:			L2
		ZIP:			00000
		BUSINESS PHONE:		2125216972

	MAIL ADDRESS:	
		STREET 1:		C/O INTERNATIONAL FUND SERVICES LIMITED
		STREET 2:		THIRD FL, BISHOP'S SQUARE REDMOND'S HILL
		CITY:			DUBLIN  2
		STATE:			L2
		ZIP:			00000

	FORMER NAME:	
		FORMER CONFORMED NAME:	HARBERT DISTRESSED INVESTMENT MASTER FUND LTD
		DATE OF NAME CHANGE:	20030516

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS GP, LLC
		CENTRAL INDEX KEY:			0001371518

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12079
		FILM NUMBER:		091093614

	BUSINESS ADDRESS:	
		STREET 1:		450 PARK AVENUE, 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-339-5100

	MAIL ADDRESS:	
		STREET 1:		450 PARK AVENUE, 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HARBINGER HOLDINGS, LLC
		CENTRAL INDEX KEY:			0001456927
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12079
		FILM NUMBER:		091093613

	BUSINESS ADDRESS:	
		STREET 1:		450 PARK AVENUE, 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-339-5100

	MAIL ADDRESS:	
		STREET 1:		450 PARK AVENUE, 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HARBINGER CAPITAL PARTNERS LLC
		CENTRAL INDEX KEY:			0001457298
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12079
		FILM NUMBER:		091093616

	BUSINESS ADDRESS:	
		STREET 1:		450 PARK AVENUE, 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-339-5100

	MAIL ADDRESS:	
		STREET 1:		450 PARK AVENUE, 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS FUND, L.P.
		CENTRAL INDEX KEY:			0001371517

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12079
		FILM NUMBER:		091093615

	BUSINESS ADDRESS:	
		STREET 1:		450 PARK AVENUE, 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-339-5100

	MAIL ADDRESS:	
		STREET 1:		450 PARK AVENUE, 30TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

	FORMER NAME:	
		FORMER CONFORMED NAME:	HARBINGER CAPITAL PARTNERS SITUATIONS FUND, L.P.
		DATE OF NAME CHANGE:	20060803
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>p1033642_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-09-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000916457</issuerCik>
        <issuerName>CALPINE CORP</issuerName>
        <issuerTradingSymbol>CPN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001233563</rptOwnerCik>
            <rptOwnerName>HARBINGER CAPITAL PARTNERS MASTER FUND I, LTD.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O INTERNATIONAL FUND SERVICES LIMITED</rptOwnerStreet1>
            <rptOwnerStreet2>THIRD FL, BISHOP'S SQUARE REDMOND'S HILL</rptOwnerStreet2>
            <rptOwnerCity>DUBLIN</rptOwnerCity>
            <rptOwnerState>L2</rptOwnerState>
            <rptOwnerZipCode>00000</rptOwnerZipCode>
            <rptOwnerStateDescription>IRELAND</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>*See Remarks</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001457298</rptOwnerCik>
            <rptOwnerName>HARBINGER CAPITAL PARTNERS LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>450 PARK AVENUE, 30TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>*See Remarks</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001371517</rptOwnerCik>
            <rptOwnerName>HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS FUND, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>450 PARK AVENUE, 30TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>*See Remarks</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001371518</rptOwnerCik>
            <rptOwnerName>HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS GP, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>450 PARK AVENUE, 30TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>*See Remarks</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001456927</rptOwnerCik>
            <rptOwnerName>HARBINGER HOLDINGS, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>450 PARK AVENUE, 30TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>*See Remarks</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001233569</rptOwnerCik>
            <rptOwnerName>FALCONE PHILIP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>450 PARK AVENUE, 30TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>*See Remarks</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-09-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>13333334</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>11.40</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>41783136</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F8"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-09-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6666666</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>11.40</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25196911</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F5"/>
                    <footnoteId id="F6"/>
                    <footnoteId id="F7"/>
                    <footnoteId id="F9"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">IMPORTANT NOTE: THE SECURITIES SET FORTH IN THIS REPORT ARE DIRECTLY BENEFICIALLY OWNED BY HARBINGER CAPITAL PARTNERS MASTER
 FUND I, LTD. AND/OR HARBINGER CAPITAL PARTNERS SPECIAL SITUATIONS FUND, L.P. (COLLECTIVELY, THE &quot;FUNDS&quot;).  ALL OTHER
 REPORTING PERSONS ARE INCLUDED WITHIN THIS REPORT DUE TO THEIR AFFILIATION WITH ONE OR BOTH OF THE FUNDS.</footnote>
        <footnote id="F2">These securities are owned by Harbinger Capital Partners Master Fund I, Ltd. (the &quot;Master Fund&quot;), which is a Reporting
 Person.</footnote>
        <footnote id="F3">These securities may be deemed to be indirectly beneficially owned by the following, each of whom is a Reporting Person:
 Harbinger Capital Partners LLC (&quot;Harbinger LLC&quot;), the investment manager of the Master Fund; Harbinger Holdings, LLC
 (&quot;Harbinger Holdings&quot;), the managing member of Harbinger LLC; and Philip Falcone, the managing member of Harbinger Holdings
 and the portfolio manager of the Master Fund.</footnote>
        <footnote id="F4">Each Reporting Person listed in Footnote 3 disclaims beneficial ownership of the reported securities except to the extent of
 his or its pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the
 beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any
 other purpose.</footnote>
        <footnote id="F5">These securities are owned by Harbinger Capital Partners Special Situations Fund, L.P. (the &quot;Special Situations Fund&quot;), which
 is a Reporting Person.</footnote>
        <footnote id="F6">These securities may be deemed to be indirectly beneficially owned by the following, each of whom is a Reporting Person:
 Harbinger Capital Partners Special Situations GP, LLC (&quot;HCPSS&quot;), the general partner of the Special Situations Fund;
 Harbinger Holdings, the managing member of HCPSS; and Philip Falcone, the managing member of Harbinger Holdings and the
 portfolio manager of the Special Situations Fund.</footnote>
        <footnote id="F7">Each Reporting Person listed in Footnote 6 disclaims beneficial ownership of the reported securities except to the extent of
 his or its pecuniary interest therein, and this report shall not be deemed an admission that such Reporting Person is the
 beneficial owner of the securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any
 other purpose.</footnote>
        <footnote id="F8">Includes 6,189,645 Shares held by Kelson Investments, S.ar.l., an indirect wholly owned subsidiary of the Master Fund and the
 Special Situations Fund.</footnote>
        <footnote id="F9">Includes 3,092,603 Shares held by Kelson Investments, S.ar.l., an indirect wholly owned subsidiary of the Master Fund and the
 Special Situations Fund.</footnote>
    </footnotes>

    <remarks>(+) The Reporting Persons may be deemed to be members of a &quot;group&quot; for purposes of the Securities Exchange Act of 1934, as
 amended.  Each Reporting Person disclaims beneficial ownership of any securities deemed to be owned by the group that are
 not directly owned by the Reporting Person.  This report shall not be deemed an admission that such Reporting Person is a
 member of a group or the beneficial owner of any securities not directly owned by such Reporting Person.</remarks>

    <ownerSignature>
        <signatureName>Harbinger Capital Partners Master Fund I, Ltd.(+), By: Harbinger Capital Partners LLC, By: Harbinger Holdings, LLC, Managing Member, By: /s/ Philip Falcone</signatureName>
        <signatureDate>2009-09-29</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Harbinger Capital Partners LLC(+), By: Harbinger Holdings, LLC, Managing Member, By: /s/ Philip Falcone</signatureName>
        <signatureDate>2009-09-29</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Harbinger Capital Partners Special Situations Fund, L.P.(+), By: Harbinger Capital Partners Special Situations GP, LLC, By: Harbinger Holdings, LLC, Managing Member, By: /s/ Philip Falcone</signatureName>
        <signatureDate>2009-09-29</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Harbinger Capital Partners Special Situations GP, LLC(+), By: Harbinger Holdings, LLC, Managing Member, By: /s/ Philip Falcone</signatureName>
        <signatureDate>2009-09-29</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Harbinger Holdings, LLC(+), By: /s/ Philip Falcone</signatureName>
        <signatureDate>2009-09-29</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Philip Falcone(+)</signatureName>
        <signatureDate>2009-09-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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