<SEC-DOCUMENT>0001537435-26-000029-index.html : 20260421
<SEC-HEADER>0001537435-26-000029.hdr.sgml : 20260421
<ACCEPTANCE-DATETIME>20260421100017
ACCESSION NUMBER:		0001537435-26-000029
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		14
CONFORMED PERIOD OF REPORT:	20260421
FILED AS OF DATE:		20260421
DATE AS OF CHANGE:		20260421

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:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36103
		FILM NUMBER:		26877055

	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>
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<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>tgen-20260417.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: tgen-20260417.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>2 <FILENAME>tecogenproxycard.htm <DESCRIPTION>EX-99.1 <TEXT> Document 2 - file: tecogenproxycard.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-101.SCH <SEQUENCE>3 <FILENAME>tgen-20260417.xsd <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT <TEXT> Document 3 - file: tgen-20260417.xsd
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>4 <FILENAME>tecogenproxycard001.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 4 - file: tecogenproxycard001.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>5 <FILENAME>tecogenproxycard002.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 5 - file: tecogenproxycard002.jpg
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</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>10 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 10 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>11 <FILENAME>Show.js <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 11 - file: Show.js
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>13 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 13 - file: FilingSummary.html
Document 13 - RAW XML: FilingSummary.xml
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</DOCUMENT> <DOCUMENT> <TYPE>ZIP <SEQUENCE>16 <FILENAME>0001537435-26-000029-xbrl.zip <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 16 - file: 0001537435-26-000029-xbrl.zip
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>17 <FILENAME>tgen-20260417_htm.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 17 - file: tgen-20260417_htm.html
Document 17 - RAW XML: tgen-20260417_htm.xml
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