-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 IQpIu4FdOLJ6wuwl5KHJaA==

<SEC-DOCUMENT>0001179110-07-019995.txt : 20071016
<SEC-HEADER>0001179110-07-019995.hdr.sgml : 20071016
<ACCEPTANCE-DATETIME>20071016173312
ACCESSION NUMBER:		0001179110-07-019995
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071012
FILED AS OF DATE:		20071016
DATE AS OF CHANGE:		20071016

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MOOSE SANDRA O
		CENTRAL INDEX KEY:			0001192786

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12291
		FILM NUMBER:		071174964

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		6179731201

	MAIL ADDRESS:	
		STREET 1:		ONE EXCHANGE PLZ
		STREET 2:		53 STATE ST. 31ST FL
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02109

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AES CORP
		CENTRAL INDEX KEY:			0000874761
		STANDARD INDUSTRIAL CLASSIFICATION:	COGENERATION SERVICES & SMALL POWER PRODUCERS [4991]
		IRS NUMBER:				541163725
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		4300 WILSON BOULEVARD
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22203
		BUSINESS PHONE:		7035221315

	MAIL ADDRESS:	
		STREET 1:		4300 WILSON BOULEVARD
		CITY:			ARLINGTON
		STATE:			VA
		ZIP:			22203

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AES CORPORATION
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-10-12</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000874761</issuerCik>
        <issuerName>AES CORP</issuerName>
        <issuerTradingSymbol>AES</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001192786</rptOwnerCik>
            <rptOwnerName>MOOSE SANDRA O</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE AES CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>4300 WILSON BOULEVARD</rptOwnerStreet2>
            <rptOwnerCity>ARLINGTON</rptOwnerCity>
            <rptOwnerState>VA</rptOwnerState>
            <rptOwnerZipCode>222099</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-10-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3675</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>21.44</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3675</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>26431</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Amended and Restated Deferred Compensation Plan for Directors</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>21.44</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-10-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5027</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>21.44</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <value>2017-10-12</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5027</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5027</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Pursuant to the Amended and Restated Deferred Compensation Plan for Directors of The AES Corporation (the &quot;Company&quot;), Non Employee Directors may elect to defer receipt of annual cash compensation otherwise payable to such Director in the form of stock units on the day that the Non Employee Director is elected to the Board of Directors for the plan year for which a stock unit election is made or on a date determined by the Board of Directors.  As previously disclosed in the Company's Form 10-K/A for the year ended December 31, 2006 earlier this year, the Board instituted a moratorium on granting long term compensation awards.  On October 12, 2007, the Board lifted the moratorium and issued annual compensation awards to Non Employee Directors.  A Non Employee Director is not eligible to make a withdrawal from his/her deferred account until such Director ceases to be a Board member.</footnote>
        <footnote id="F2">Footnote #1 Continued.  This distribution will be made as soon as practicable after the date the Director terminates service on the Board, and will be made in accordance with the Director's Distribution Election Notification.</footnote>
        <footnote id="F3">This stock option award was granted pursuant to The AES Corporation 2001 Stock Option Plan for Outside Directors.  As previously disclosed in the Company's Form 10-K/A for the year ended December 31, 2006 earlier this year, the Board instituted a moratorium on granting long term compensation awards.  On October 12, 2007, the Board lifted the moratorium on granting long term compensation awards and issued annual compensation awards to Non Employee Directors.  This award will vest in three equal annual installments such that one third will vest on 10/12/2008, one third will vest on 10/12/2009, and the remaining third will vest on 10/12/2010.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Sandra O. Moose</signatureName>
        <signatureDate>2007-10-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----