<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>3</documentType>
<periodOfReport>2003-11-03</periodOfReport>
    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000821113</issuerCik>
        <issuerName>GEXA CORP</issuerName>
        <issuerTradingSymbol>GEXC</issuerTradingSymbol>
</issuer>
<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001271258</rptOwnerCik>
            <rptOwnerName>VEACH SARAH T</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>24 GREENWAY PLAZA</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1826</rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77046</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector>
<isOfficer>1</isOfficer>
<isTenPercentOwner>0</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle>VP - Finance</officerTitle>
<otherText></otherText>
</reportingOwnerRelationship>
</reportingOwner>
<remarks>No Securities are beneficially owned.</remarks>
<ownerSignature>
<signatureName>SARAH T. VEACH</signatureName>
<signatureDate>2003-12-01</signatureDate>
</ownerSignature>
</ownershipDocument>

