-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 SwMKxRiQ5M5j0ekVVccfDVQU2AYmzorvxdZ9lukleaS4MStVjsN6v2iGANP9UT1C
 cqdtk/YD55etX16G0eau7w==

<SEC-DOCUMENT>0001047862-09-000226.txt : 20091203
<SEC-HEADER>0001047862-09-000226.hdr.sgml : 20091203
<ACCEPTANCE-DATETIME>20091203173027
ACCESSION NUMBER:		0001047862-09-000226
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20091201
FILED AS OF DATE:		20091203
DATE AS OF CHANGE:		20091203

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CONSOLIDATED EDISON INC
		CENTRAL INDEX KEY:			0001047862
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		IRS NUMBER:				133965100
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		4 IRVING PLACE
		STREET 2:		ROOM 1618 S
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10003
		BUSINESS PHONE:		2124604600

	MAIL ADDRESS:	
		STREET 1:		4 IRVING PLACE
		STREET 2:		ROOM 1618 S
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10003

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DEL GIUDICE MICHAEL J
		CENTRAL INDEX KEY:			0001108889

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14514
		FILM NUMBER:		091220986

	MAIL ADDRESS:	
		STREET 1:		C/O MILLENNIUM CREDIT MARKETS LLC
		STREET 2:		ONE ROCKEFELLER PLAZA SUITE 2330
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10020
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-12-01</periodOfReport>

    <issuer>
        <issuerCik>0001047862</issuerCik>
        <issuerName>CONSOLIDATED EDISON INC</issuerName>
        <issuerTradingSymbol>ED</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001108889</rptOwnerCik>
            <rptOwnerName>DEL GIUDICE MICHAEL J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>MILLENNIUM CREDIT MARKETS, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>15 WEST 48TH STREET</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10020</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Commom Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-12-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>52.44</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>42.91</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>24387.7</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Deferred Stock Units (&quot;DSUs&quot;) acquired pursuant to a voluntary deferral of retainer fees in accordance with the Consolidated Edison, Inc. (the &quot;Company&quot;) Long Term Incentive Plan.  Each DSU represents one share of the Company's common stock.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Carole Sobin; Attorney-in-Fact</signatureName>
        <signatureDate>2009-12-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----