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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0000032878-11-000011.txt : 20110127
<SEC-HEADER>0000032878-11-000011.hdr.sgml : 20110127
<ACCEPTANCE-DATETIME>20110127164843
ACCESSION NUMBER:		0000032878-11-000011
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20110125
FILED AS OF DATE:		20110127
DATE AS OF CHANGE:		20110127

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Andrews William Christopher
		CENTRAL INDEX KEY:			0001488415

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08403
		FILM NUMBER:		11552719

	MAIL ADDRESS:	
		STREET 1:		2956 WATERVIEW DRIVE
		CITY:			ROCHESTER HILLS
		STATE:			MI
		ZIP:			48309

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ENERGY CONVERSION DEVICES INC
		CENTRAL INDEX KEY:			0000032878
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				381749884
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		3800 LAPEER ROAD
		CITY:			AUBURN HILLS
		STATE:			MI
		ZIP:			48326
		BUSINESS PHONE:		248-475-0100

	MAIL ADDRESS:	
		STREET 1:		3800 LAPEER ROAD
		CITY:			AUBURN HILLS
		STATE:			MI
		ZIP:			48326

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ENERGY CONVERSION LABORATORIES INC
		DATE OF NAME CHANGE:	19710603
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgardoc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2011-01-25</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000032878</issuerCik>
        <issuerName>ENERGY CONVERSION DEVICES INC</issuerName>
        <issuerTradingSymbol>ENER</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001488415</rptOwnerCik>
            <rptOwnerName>Andrews William Christopher</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>3800 LAPEER ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>AUBURN HILLS</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48326</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP &amp; Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2011-01-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>13700</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>42600</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Consists of restricted stock units granted under the Company's 2010 Omnibus Compensation Plan (2010 Omnibus Plan).  These restricted stock units settle on a one-for-one basis in shares of Company common stock and vest on August 24, 2013, subject to early vesting in accordance with the terms of the 2010 Omnibus Plan or the Executive Severance Plan, as applicable.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>By: Ghazaleh Koefod  For: William Christopher Andrews</signatureName>
        <signatureDate>2011-01-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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