<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0707</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001432416</cik>
        <entityName>GREAT LAKES POWER LTD</entityName>
        <issuerAddress>
            <street1>41 VICTORIA STREET</street1>
            <city>GATINEAU</city>
            <stateOrCountry>A8</stateOrCountry>
            <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
            <zipCode>J8X 2A1</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>819-561-2722</issuerPhoneNumber>
        <jurisdictionOfInc>ONTARIO, CANADA</jurisdictionOfInc>
        <issuerPreviousNameList>
            <value>None</value>
        </issuerPreviousNameList>
        <edgarPreviousNameList>
            <value>None</value>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Richard</firstName>
                <lastName>Legault</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>111 De Nantel</street1>
                <city>GATINEAU</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>J8T 8C8</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Chief Executive Officer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Bernard</firstName>
                <lastName>Cardinal</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>79 de l'Abbe-Mangin</street1>
                <city>GATINEAU</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>J8V 3S9</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Chris</firstName>
                <lastName>McGarrity</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>22 Knoll Terrace</street1>
                <city>Nepean</city>
                <stateOrCountry>A6</stateOrCountry>
                <stateOrCountryDescription>ONTARIO, CANADA</stateOrCountryDescription>
                <zipCode>K2J 2K6</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Dan</firstName>
                <lastName>Benoit</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>231 Chemin de Kingsmere</street1>
                <city>Chelsea</city>
                <stateOrCountry>A8</stateOrCountry>
                <stateOrCountryDescription>QUEBEC, CANADA</stateOrCountryDescription>
                <zipCode>J98 1G8</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Josee</firstName>
                <lastName>Guibord</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>561 Melbourne Avenue</street1>
                <city>Ottawa</city>
                <stateOrCountry>A6</stateOrCountry>
                <stateOrCountryDescription>ONTARIO, CANADA</stateOrCountryDescription>
                <zipCode>K2A 1W7</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Senior Vice President &amp; Secretary</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Thomas</firstName>
                <lastName>Deedy</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>2701 75 State Street</street1>
                <city>Boston</city>
                <stateOrCountry>MA</stateOrCountry>
                <stateOrCountryDescription>MASSACHUSETTS</stateOrCountryDescription>
                <zipCode>02109</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>President and Chief Operating Officer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Valerie</firstName>
                <lastName>Hannah</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>303, 3590 Rivergate Way</street1>
                <city>Ottawa</city>
                <stateOrCountry>A6</stateOrCountry>
                <stateOrCountryDescription>ONTARIO, CANADA</stateOrCountryDescription>
                <zipCode>K1V 1V6</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Chief Financial Officer</relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Kimball</firstName>
                <lastName>Osmars</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>601 S. Figueroa St.</street1>
                <street2>Suite 2200</street2>
                <city>Los Angeles</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>90017</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification>Regional Chief Operating Officer, West</relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Electric Utilities</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Over $100,000,000</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06b</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2016-03-22</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isDebtType>true</isDebtType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>false</isBusinessCombinationTransaction>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>50000000</totalOfferingAmount>
            <totalAmountSold>50000000</totalAmountSold>
            <totalRemaining>0</totalRemaining>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>1</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>GREAT LAKES POWER LTD</issuerName>
                <signatureName>/s/ Walter Di Cesare</signatureName>
                <nameOfSigner>Walter Di Cesare</nameOfSigner>
                <signatureTitle>Vice President and Assistant Secretary</signatureTitle>
                <signatureDate>2016-03-30</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
