<SEC-DOCUMENT>0001537435-25-000088-index.html : 20250717
<SEC-HEADER>0001537435-25-000088.hdr.sgml : 20250717
<ACCEPTANCE-DATETIME>20250717214400
ACCESSION NUMBER:		0001537435-25-000088
CONFORMED SUBMISSION TYPE:	S-1MEF
PUBLIC DOCUMENT COUNT:		4
<REFERENCE-462B>333-288668
FILED AS OF DATE:		20250717
DATE AS OF CHANGE:		20250717
EFFECTIVENESS DATE:		20250717

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TECOGEN INC.
		CENTRAL INDEX KEY:			0001537435
		STANDARD INDUSTRIAL CLASSIFICATION:	AIR COND & WARM AIR HEATING EQUIP & COMM & INDL REFRIG EQUIP [3585]
		ORGANIZATION NAME:           	06 Technology
		EIN:				043536131
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-1MEF
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-288740
		FILM NUMBER:		251132537

	BUSINESS ADDRESS:	
		STREET 1:		76 TREBLE COVE ROAD
		STREET 2:		BLDG. 1
		CITY:			NORTH BILLERICA
		STATE:			MA
		ZIP:			01862
		BUSINESS PHONE:		781-466-6400

	MAIL ADDRESS:	
		STREET 1:		76 TREBLE COVE ROAD
		STREET 2:		BLDG. 1
		CITY:			NORTH BILLERICA
		STATE:			MA
		ZIP:			01862

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TECOGEN INC
		DATE OF NAME CHANGE:	20111215
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-1MEF
<SEQUENCE>1
<FILENAME>tecogenforms-1mef.htm
<DESCRIPTION>S-1MEF
<TEXT>
Document 1 - file: tecogenforms-1mef.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-FILING FEES
<SEQUENCE>2
<FILENAME>tecogencalculationoffiling.htm
<DESCRIPTION>EX-FILING FEES
<TEXT>
Document 2 - file: tecogencalculationoffiling.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>3
<FILENAME>somertonslegalopinionforms.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 3 - file: somertonslegalopinionforms.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>consentofwolfcompany.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 4 - file: consentofwolfcompany.htm

</DOCUMENT>
</SEC-DOCUMENT>