<SEC-DOCUMENT>0001683168-17-000837.txt : 20170406
<SEC-HEADER>0001683168-17-000837.hdr.sgml : 20170406
<ACCEPTANCE-DATETIME>20170406202958
ACCESSION NUMBER:		0001683168-17-000837
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170401
FILED AS OF DATE:		20170406
DATE AS OF CHANGE:		20170406

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			QS Energy, Inc.
		CENTRAL INDEX KEY:			0001103795
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL & GAS FILED MACHINERY & EQUIPMENT [3533]
		IRS NUMBER:				522088326
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		5266 HOLLISTER AVENUE
		STREET 2:		SUITE 218
		CITY:			SANTA BARBARA
		STATE:			CA
		ZIP:			93111
		BUSINESS PHONE:		805-845-3581

	MAIL ADDRESS:	
		STREET 1:		5266 HOLLISTER AVENUE
		STREET 2:		SUITE 218
		CITY:			SANTA BARBARA
		STATE:			CA
		ZIP:			93111

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SAVE THE WORLD AIR INC
		DATE OF NAME CHANGE:	20000120

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bigger Greggory M
		CENTRAL INDEX KEY:			0001541604

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-29185
		FILM NUMBER:		17747402

	MAIL ADDRESS:	
		STREET 1:		5266 HOLLISTER AVENUE
		STREET 2:		SUITE 219
		CITY:			SANTA BARBARA
		STATE:			CA
		ZIP:			93111
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>bigger_f4.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2017-04-01</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001103795</issuerCik>
        <issuerName>QS Energy, Inc.</issuerName>
        <issuerTradingSymbol>QSEP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001541604</rptOwnerCik>
            <rptOwnerName>Bigger Greggory M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>23902 FM 2978</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TOMBALL</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77375</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <officerTitle></officerTitle>
            <otherText>Former Director and Officer</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Option to Purchase Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>.05</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2017-04-01</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2017-04-01</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1000000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2017-01-01</value>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2027-01-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1000000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5462592</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The stock options reported under item 1 above were granted to each member of Issuer's Board as equity compensation under the Issuer's Board Compensation Policy, approved by the Board on 06/19/2015. The options granted under item 1 vest at the rate of 1/12 per month, commencing 01/01/2017, with full vesting on 12/31/2017. On 03/29/2017, the Board agreed to accelerate outstanding unvested options listed under item 1, effective 04/01/2017, in connection with Mr. Bigger's resignation from the Board and Executive Officer positions with the Issuer, also effective 04/01/2017.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Greggory M. Bigger</signatureName>
        <signatureDate>2017-04-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
