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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001098482-09-000001.txt : 20090203
<SEC-HEADER>0001098482-09-000001.hdr.sgml : 20090203
<ACCEPTANCE-DATETIME>20090203135158
ACCESSION NUMBER:		0001098482-09-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080519
FILED AS OF DATE:		20090203
DATE AS OF CHANGE:		20090203

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WORLD ENERGY SOLUTIONS, INC.
		CENTRAL INDEX KEY:			0001058307
		STANDARD INDUSTRIAL CLASSIFICATION:	POWER, DISTRIBUTION & SPECIALTY TRANSFORMERS [3612]
		IRS NUMBER:				650783722
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3900A 31ST STREET NORTH
		CITY:			ST PETERSBURG
		STATE:			FL
		ZIP:			33714
		BUSINESS PHONE:		7275255552

	MAIL ADDRESS:	
		STREET 1:		3900A 31ST STREET NORTH
		CITY:			ST PETERSBURG
		STATE:			FL
		ZIP:			33714

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ADVANCED 3-D ULTRASOUND SERVICES INC
		DATE OF NAME CHANGE:	20050809

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	YSEEK INC
		DATE OF NAME CHANGE:	20010413

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SWIFTY CARWASH & QUIK LUBE INC
		DATE OF NAME CHANGE:	19981117

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			UTEK CORP
		CENTRAL INDEX KEY:			0001098482
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-25097
		FILM NUMBER:		09564249

	BUSINESS ADDRESS:	
		STREET 1:		2109 PALM AVENUE
		CITY:			TAMPA
		STATE:			FL
		ZIP:			33605
		BUSINESS PHONE:		8137544330

	MAIL ADDRESS:	
		STREET 1:		2109 PALM AVENUE
		CITY:			TAMPA
		STATE:			FL
		ZIP:			33605
</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>2008-05-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001058307</issuerCik>
        <issuerName>WORLD ENERGY SOLUTIONS, INC.</issuerName>
        <issuerTradingSymbol>WEGY.OB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001098482</rptOwnerCik>
            <rptOwnerName>UTEK CORP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2109 PALM AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TAMPA</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33605</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Preferred Stock Series B Convertible</value>
            </securityTitle>
            <transactionDate>
                <value>2008-06-10</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Preferred Stock Series C Convertible</value>
            </securityTitle>
            <transactionDate>
                <value>2008-09-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-05-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1923077</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18042749</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On June 10, 2008 UTEK Corporation sold its 100% ownership in Advanced Alternative Energy Technologies, Inc. in a stock for stock exchange.  UTEK received 100,000 unregistered shares of Series B Convertible Preferred Stock of World Energy Solutions, Inc.   The estimated market value of the shares of the subsidiary was $875,000.</footnote>
        <footnote id="F2">On September 26, 2008 UTEK Corporation sold its 100% ownership in H-Hybrid Technologies, Inc. in a stock for stock exchange.   UTEK received 100,000 unregistered shares of Series C Convertible Preferred Stock of World Energy Solutions, Inc.  The estimated market value of the shares of the subsidiary was $750,000.</footnote>
        <footnote id="F3">On May 19, 2008 UTEK Corporation entered into an intellectual capital consulting agreement in which UTEK received $250,000 in unregistered common shares.  UTEK received 1,923,077 unregistered common shares for its services.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>UTEK Corporation by Carole R. Wright, CFO</signatureName>
        <signatureDate>2009-02-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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