<SEC-DOCUMENT>0001127602-18-027139.txt : 20180910
<SEC-HEADER>0001127602-18-027139.hdr.sgml : 20180910
<ACCEPTANCE-DATETIME>20180910101720
ACCESSION NUMBER:		0001127602-18-027139
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180902
FILED AS OF DATE:		20180910
DATE AS OF CHANGE:		20180910

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mikkelsen Eileen
		CENTRAL INDEX KEY:			0001751464

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	333-21011
		FILM NUMBER:		181061678

	MAIL ADDRESS:	
		STREET 1:		76 SOUTH MAIN STREET
		CITY:			AKRON
		STATE:			OH
		ZIP:			44308

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRSTENERGY CORP
		CENTRAL INDEX KEY:			0001031296
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		IRS NUMBER:				341843785
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		76 SOUTH MAIN ST
		CITY:			AKRON
		STATE:			OH
		ZIP:			44308-1890
		BUSINESS PHONE:		330-761-7837

	MAIL ADDRESS:	
		STREET 1:		76 SOUTH MAIN ST
		CITY:			AKRON
		STATE:			OH
		ZIP:			44308-1890
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>form3.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2018-09-02</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001031296</issuerCik>
        <issuerName>FIRSTENERGY CORP</issuerName>
        <issuerTradingSymbol>FE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001751464</rptOwnerCik>
            <rptOwnerName>Mikkelsen Eileen</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>76 S. MAIN ST.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>AKRON</rptOwnerCity>
            <rptOwnerState>OH</rptOwnerState>
            <rptOwnerZipCode>44308</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>VP, Rates &amp; Regulatory Affairs</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>16415.475</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2886.673</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Savings Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Phantom 3/16D</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2019-03-01</value>
            </exerciseDate>
            <expirationDate>
                <value>2019-03-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>185.803</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Balance includes restricted stock.</footnote>
        <footnote id="F2">FE's 401(k) Savings Plan includes a unitized fund invested in FE stock, in which the reporting person may invest, and includes dividend reinvestment and company match features. The number of shares reported as indirectly held in the 401(k) Plan in this row is an estimate of the number of shares of FE's common stock held in the unitized stock fund and allocated to the reporting person's account as of September 2, 2018.</footnote>
        <footnote id="F3">This holding reflects phantom stock payable in cash and shares of FirstEnergy Corp. common stock on March 1, 2019 under the FirstEnergy Corp. Amended and Restated Executive Deferred Compensation Plan. Each share of phantom stock is the economic equivalent of one share of common stock.</footnote>
    </footnotes>

    <remarks>Exhibit 24: Power of Attorney (attached)</remarks>

    <ownerSignature>
        <signatureName>Daniel M. Dunlap, attorney-in-fact</signatureName>
        <signatureDate>2018-09-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>doc1.txt
<DESCRIPTION>POWER OF ATTORNEY (PUBLIC): POWER OF ATTORNEY
<TEXT>

POWER OF ATTORNEY


Know all persons by these present that the undersigned
hereby constitutes and appoints each of Ebony L. Yeboah-Amankwah
and Daniel M. Dunlap, signing singly,
the undersigneds true and lawful attorney in fact to:

(1)  execute for and on behalf of the undersigned,
in the undersigneds capacity as an officer,
employee and/or director of FirstEnergy Corp. and/or any of its
subsidiaries and affiliates (referred to as the Company),
as applicable, Forms 3, 4 and 5 in accordance with
Section 16(a) of the Securities Exchange Act of 1934,
as amended (Section 16) and Form 144 (Form 144)
pursuant to Rule 144 under the Securities Act of 1933
(Rule 144) and the rules thereunder;

(2)  do and perform any and all acts for and on behalf
of the undersigned that may be necessary or desirable to complete
and execute any such Forms 3, 4, 5 or 144 and file such form
with the United States Securities and Exchange Commission and
any stock exchange or similar authority; and

(3)  take any other action of any type whatsoever in
connection with the foregoing which, in the opinion of such
attorney in fact, may be of benefit to, in the best interest of,
or legally required by the undersigned; it being understood
that the documents executed by such attorney in fact on behalf
of the undersigned pursuant to this Power of Attorney
shall be in such form and shall contain such terms and
conditions as such attorney in fact may approve in such
attorney in facts reasonable discretion.

The undersigned hereby grants to each such attorney in fact full
power and authority to do and perform any and every act and thing
whatsoever requisite, necessary, or proper to be done in the
exercise of any of the rights and powers herein granted,
as fully to all intents and purposes as the undersigned might
or could do if personally present, with full power of
substitution or revocation, hereby ratifying and confirming
all that such attorney in fact shall lawfully do or cause
to be done by virtue of this power of attorney and the
rights and powers herein granted.

The undersigned acknowledges that the foregoing attorneys in fact,
in serving in such capacity at the request of the undersigned,
are not assuming, nor is the Company assuming, any of the
undersigneds responsibilities to comply with Section 16
or Rule 144.

This Power of Attorney shall remain in full force and effect
until the undersigned is no longer required to file Forms 3,
4, 5 and 144 with respect to the undersigneds holdings of
and transactions in securities issued by the Company,
unless earlier revoked by the undersigned in a signed writing
delivered to the foregoing attorneys in fact.  Additionally,
this Power of Attorney revokes any and all previous Power
of Attorney forms for this same purpose which was entered
into by the undersigned.

This Power of Attorney shall be governed by and construed
in accordance with the law of the State of Ohio, regardless
of the law that might be applied under principles of conflict
of laws.









The undersigned has caused this Power of Attorney to be
executed as of this 24 day of August, 2018.



/s/Eileen M. Mikkelsen




State of Ohio	)
		)  ss:
County of Summit)


The foregoing Power of Attorney was acknowledged before me
this 24th day of August, 2018, by Eileen M. Mikkelsen.



/s/Jaime E. Hudson
        JAIME E. HUDSON, Notary Public
          State Wide Jurisdiction, Ohio
My Commission Expires Aug. 12, 2022
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
