-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 W1GU5XMIyV+Riy3t7hq0+02U0Hlyj/mOcqUdsnwtQtijUOssIGiZPKPdgBooWCMZ
 NAMuqxk6LmSiMGVlbE1MBw==

<SEC-DOCUMENT>0000883842-09-000004.txt : 20090205
<SEC-HEADER>0000883842-09-000004.hdr.sgml : 20090205
<ACCEPTANCE-DATETIME>20090205160859
ACCESSION NUMBER:		0000883842-09-000004
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20081231
FILED AS OF DATE:		20090205
DATE AS OF CHANGE:		20090205

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NELSON BRUCE K
		CENTRAL INDEX KEY:			0001257936

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19944
		FILM NUMBER:		09573125

	MAIL ADDRESS:	
		STREET 1:		22700 SAVI RANCH PARKWAY
		CITY:			YORBA LINDA
		STATE:			CA
		ZIP:			92887

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Green St. Energy, Inc.
		CENTRAL INDEX KEY:			0000883842
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC COMPONENTS, NEC [3679]
		IRS NUMBER:				363809819
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		123 GREEN ST
		CITY:			TEHACHAPI
		STATE:			CA
		ZIP:			93561
		BUSINESS PHONE:		310-556-9688

	MAIL ADDRESS:	
		STREET 1:		123 GREEN ST
		CITY:			TEHACHAPI
		STATE:			CA
		ZIP:			93561

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	M WAVE INC
		DATE OF NAME CHANGE:	19930328
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000883842</issuerCik>
        <issuerName>Green St. Energy, Inc.</issuerName>
        <issuerTradingSymbol>mwav</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001257936</rptOwnerCik>
            <rptOwnerName>NELSON BRUCE K</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GREEN ST. ENERGY, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>123 GREEN STREET</rptOwnerStreet2>
            <rptOwnerCity>TEHACHAPI</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>93561</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.05</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2008-12-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>153516</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.05</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2009-12-31</value>
            </exerciseDate>
            <expirationDate>
                <value>2012-12-31</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>153516</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>208052</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">By agreement with the Company, the Reporting Person is entitled to receive additional Common Stock grants from time to timeduring the calendar year 2009 to assure Reporting Person has the right to maintain beneficil ownership of the Company's Common Stock in the equivalent of a minimum of 3% (three percent) of the fully diluted (issued, options, and warrants) shares of Common Stock.  The Company will issue any additional shares to the Reporting Person pursuant to said agreement provision within ten (10) days of the end of a fiscal quarter.  As of December 31, 2008, the Company had 5,117,185 fully diluted shares.  Grants will be subject to shareholder approval at the next annual meeting.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Bruce K. Nelson</signatureName>
        <signatureDate>2009-02-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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