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

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-08-13</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001140310</issuerCik>
        <issuerName>ZBB ENERGY CORP</issuerName>
        <issuerTradingSymbol>ZBB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001289643</rptOwnerCik>
            <rptOwnerName>GLG Partners LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1 CURZON STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LONDON</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode>W1J 5HB</rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001403696</rptOwnerCik>
            <rptOwnerName>GLG Global Utilities Fund</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GLG PARTNERS LP, 1 CURZON STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LONDON</rptOwnerCity>
            <rptOwnerState>X0</rptOwnerState>
            <rptOwnerZipCode>W1J 5HB</rptOwnerZipCode>
            <rptOwnerStateDescription>UNITED KINGDOM</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.01 (the &quot;Common Stock&quot;)</value>
            </securityTitle>
            <transactionDate>
                <value>2007-08-13</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>42100</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>4.20</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1722193</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">GLG Partners LP, an English limited partnership, acts as the investment manager for (i) GLG Global Utilities Fund, which
 holds 1,110,698 shares of Common Stock and (ii) certain other funds (the &quot;Other GLG Funds&quot;), which hold, in the aggregate,
 611,495 shares of Common Stock.</footnote>
        <footnote id="F2">GLG Partners LP, an English limited partnership, acts as the investment manager of GLG Global Utilities Fund and the Other
 GLG Funds and may be deemed, as of the date hereof, to be the beneficial owner of the Issuer's securities or derivative
 securities held by such funds.  GLG Partners Limited, an English limited company, is the general partner of GLG Partners LP.
  Noam Gottesman, Pierre Lagrange and Emmanuel Roman are each a managing director of GLG Partners Limited.  GLG Partners LP,
 GLG Partners Limited, Noam Gottesman, Pierre Lagrange and Emmanuel Roman do not hold directly any of the Issuer's securities
 or derivative securities with respect thereto, and disclaim any beneficial ownership of any of the Issuer's securities or
 derivative securities reported or excluded herein for purposes of Rule 16a-1(a) under the Securities Exchange Act of 1934,
 as amended, except for their pecuniary interest therein.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>GLG PARTNERS LP, By: /s/ Timothy Kuschill, Legal Counsel</signatureName>
        <signatureDate>2007-08-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>GLG PARTNERS LP, By: GLG Partners Limited, its General Partner, By: /s/ Emmanuel Roman, Managing Director</signatureName>
        <signatureDate>2007-08-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
