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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 NEmDO7R06+E2ZPNGDTd8+WDpfINioSRJVQreVkRQdd7CMPRnJFxzeeBhS8xem+sJ
 AmDgsDWVpIfaAjPP9QtDxQ==

<SEC-DOCUMENT>0001058854-05-000133.txt : 20050711
<SEC-HEADER>0001058854-05-000133.hdr.sgml : 20050711
<ACCEPTANCE-DATETIME>20050711193124
ACCESSION NUMBER:		0001058854-05-000133
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050701
FILED AS OF DATE:		20050711
DATE AS OF CHANGE:		20050711

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MONONGAHELA POWER CO /OH/
		CENTRAL INDEX KEY:			0000067646
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC SERVICES [4911]
		IRS NUMBER:				135229392
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1310 FAIRMONT AVE
		STREET 2:		PO BOX 1392
		CITY:			FAIRMONT
		STATE:			WV
		ZIP:			26554
		BUSINESS PHONE:		3043663000

	MAIL ADDRESS:	
		STREET 1:		ALLEGHENY POWER SERVICE CORP
		STREET 2:		800 CABIN HILL DR
		CITY:			GREENSBURG
		STATE:			PA
		ZIP:			15601

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MARIETTA ELECTRIC CO
		DATE OF NAME CHANGE:	19710415

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CANNELL CAPITAL LLC
		CENTRAL INDEX KEY:			0001058854
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05164
		FILM NUMBER:		05949128

	BUSINESS ADDRESS:	
		STREET 1:		150 CALIFORNIA STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94111
		BUSINESS PHONE:		4158358300

	MAIL ADDRESS:	
		STREET 1:		150 CALIFORNIA STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94111

	FORMER NAME:	
		FORMER CONFORMED NAME:	CANNELL J CARLO DBA CANNELL CAPITAL MGMT
		DATE OF NAME CHANGE:	19980330
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-07-01</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000067646</issuerCik>
        <issuerName>MONONGAHELA POWER CO /OH/</issuerName>
        <issuerTradingSymbol>MPNC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001058854</rptOwnerCik>
            <rptOwnerName>CANNELL CAPITAL LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>150 CALIFORNIA STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN FRANCISCO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94111</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Preferred Stock, 4.5% Series C</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>24100</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>J. Carlo Cannell</signatureName>
        <signatureDate>2005-07-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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