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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-07-19</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001831651</issuerCik>
        <issuerName>Shoals Technologies Group, Inc.</issuerName>
        <issuerTradingSymbol>SHLS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001827744</rptOwnerCik>
            <rptOwnerName>Cannova Frank R.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1400 SHOALS WAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PORTLAND</rptOwnerCity>
            <rptOwnerState>TN</rptOwnerState>
            <rptOwnerZipCode>37148</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <footnotes></footnotes>

    <remarks>The reporting person ceased to an insider upon his resignation from the board of directors of the Issuer on July 19, 2021.</remarks>

    <ownerSignature>
        <signatureName>/s/ Mehgan Peetz, as Attorney-in-Fact for Frank R. Cannova</signatureName>
        <signatureDate>2021-08-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
