8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT PURSUANT

TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

Date of report (Date of earliest event reported): July 7, 2014

TECOGEN INC.

(Exact Name of Registrant as Specified in Its Charter)

Delaware

(State or Other Jurisdiction of Incorporation)

333-17869704-3536131

(Commission File Number)(IRS Employer Identification No.)

45 First Avenue, Waltham

Massachusetts 02451

(Address of Principal Executive Offices) (Zip Code)

(781) 622-1120

(Registrant's Telephone Number, Including Area Code)

______________________________________

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

c Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

c Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

c Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

c Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On July 7, 2014, Tecogen Inc. (the "Company") announced that Earl Lewis had been appointed as a new member of the Company's Board of Directors. A copy of the Company's press release announcing Mr. Lewis’s appointment is attached as an exhibit to this filing.

Item 9.01Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.	Description of Exhibit
99.1	Press release dated July 7, 2014 announcing the appointment of Mr. Earl Lewis to the Board of Directors.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Company has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

Date: July 11, 2014

TECOGEN INC.

By: /s/ Bonnie J. Brown

Bonnie J. Brown

Chief Financial Officer

EX-99.1

Exhibit 99.1

press release

For further information contact:

John N. Hatsopoulos

P: 781-622-1120

E: jhatsopoulos@tecogen.com

Tecogen Selects New Board Member

WALTHAM, Mass., July 7, 2014: Tecogen Inc. (NASDAQ: TGEN), today announced the appointment of Mr. Earl Lewis to the company’s Board of Directors. Tecogen is a next-generation manufacturer of natural-gas-fueled, engine-driven, combined heat and power (CHP) products that aim to reduce energy costs, reduce greenhouse gas emissions, and alleviate congestion on the national power grid.

Mr. Lewis served as Chairman, President, and Chief Executive Officer of FLIR Systems, Inc. (NASDAQ: FLIR), a highly acclaimed electronic equipment manufacturer, from 2000 until his retirement in 2013 as President and Chief Executive Officer. He continues to serve as Chairman of FLIR’s Board. Prior to joining FLIR, Mr. Lewis served in various capacities at Thermo Instrument Systems, Inc., a unit of Thermo Fisher Scientific Inc. (NYSE: TMO), formerly Thermo Electron Inc., with his last role as President and Chief Executive Officer.

“We are pleased to welcome Mr. Lewis to our Board,” said Robert Panora, Tecogen’s President and Chief Operating Officer. “We appreciate his thoroughly demonstrated knowledge of how to manage a business to increase its profitability and growth. Also, his leadership at both Thermo Electron and FLIR has given him a deep understanding of Tecogen’s technology and operations, as well as our target markets.”

Mr. Lewis is also a member of the Board of Directors of Harvard BioScience and NxStage Medical, Inc., and a Trustee of Clarkson University and New Hampton School. He holds a BS from Clarkson College of Technology and has attended post-graduate programs at the University of Buffalo, Northeastern University, and Harvard University. Mr. Lewis also holds a Masters Professional Director Certification from the American College of Corporate Directors, a public company director education and credentialing organization.

About Tecogen

Tecogen manufactures, installs, and maintains high efficiency, ultra-clean combined heat and power products including natural gas engine-driven cogeneration, air conditioning systems, and high-efficiency water heaters for industrial and commercial use. Tecogen has shipped more than 2,000 units, supported by an established network of engineering, sales, and service personnel across the United States. For more information, please visit www.tecogen.com.

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Tecogen Media Contact Information:

David Garrison

Director of Finance

P: 781-466-6403

E: David.Garrison@tecogen.com

Tecogen Investor Contact Information:

John N. Hatsopoulos

P: 781-622-1120

E: jhatsopoulos@tecogen.com