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

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2005-03-16</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000809012</issuerCik>
        <issuerName>HOST AMERICA CORP</issuerName>
        <issuerTradingSymbol>CAFE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001316534</rptOwnerCik>
            <rptOwnerName>SPARKS RONALD RAY</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O HOST AMERICA CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>TWO BROADWAY</rptOwnerStreet2>
            <rptOwnerCity>HAMDEN</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06518-2697</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>RS Services, Inc. President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>COMMON STOCK</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>492227</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>STOCK OPTION (RIGHT TO BUY)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.04</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2005-03-16</value>
            </exerciseDate>
            <expirationDate>
                <value>2015-03-16</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>COMMON STOCK</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>18000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Includes 431,777 restricted shares of common stock issued to Mr. Sparks in connection with the acquisition of RS Services, Inc. of which 80,000 restricted shares are held in escrow and 60,500 restricted shares of common stock issued to Mr. Sparks in connection with the acquisition of GlobalNet Energy Investors, Inc.</footnote>
        <footnote id="F2">The option grant was approved by Host America Corporation's board of directors on March 16, 2005.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Ronald R. Sparks</signatureName>
        <signatureDate>2005-04-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
