<SEC-DOCUMENT>0001127602-18-020795.txt : 20180613
<SEC-HEADER>0001127602-18-020795.hdr.sgml : 20180613
<ACCEPTANCE-DATETIME>20180613163742
ACCESSION NUMBER:		0001127602-18-020795
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180611
FILED AS OF DATE:		20180613
DATE AS OF CHANGE:		20180613

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FORRY LINDA DORCENA
		CENTRAL INDEX KEY:			0001739768

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05324
		FILM NUMBER:		18897117

	MAIL ADDRESS:	
		STREET 1:		300 CADWELL DRIVE
		CITY:			SPRINGFIELD
		STATE:			MA
		ZIP:			01104

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EVERSOURCE ENERGY
		CENTRAL INDEX KEY:			0000072741
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		IRS NUMBER:				042147929
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		300 CADWELL DRIVE
		CITY:			SPRINGFIELD
		STATE:			MA
		ZIP:			01104
		BUSINESS PHONE:		8606655000

	MAIL ADDRESS:	
		STREET 1:		107 SELDEN ST
		CITY:			BERLIN
		STATE:			CT
		ZIP:			06037-1616

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NORTHEAST UTILITIES
		DATE OF NAME CHANGE:	20041201

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NORTHEAST UTILITIES SYSTEM
		DATE OF NAME CHANGE:	19961121
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-06-11</periodOfReport>

    <issuer>
        <issuerCik>0000072741</issuerCik>
        <issuerName>EVERSOURCE ENERGY</issuerName>
        <issuerTradingSymbol>ES</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001739768</rptOwnerCik>
            <rptOwnerName>FORRY LINDA DORCENA</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>300 CADWELL DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SPRINGFIELD</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01104</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOther>1</isOther>
            <otherText>Trustee</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares, $5.00 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2018-06-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1579</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1579</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Restricted share units that were granted on June 11, 2018 and vested on June 12, 2018 for which receipt of the underlying shares has been deferred. Distribution will be made on a one-for-one basis in common shares on the 10th business day of January of the year following the reporting person's retirement from the Board.</footnote>
        <footnote id="F2">Restricted share units.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Kerry J. Tomasevich, attorney-in-fact for Ms. Forry</signatureName>
        <signatureDate>2018-06-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
