Our Team

Tecogen’s expert team members have years of experience in the development and application of CHP products. Focusing on innovation and progressive thinking, we work hard to give customers standardized, modular, small-scale solutions that precisely fit their needs. Through careful development, informed by real-world experience, we offer a thoughtfully selected number of adaptable product configurations. This philosophy has made us particularly agile, quickly and successfully expanding into new marketplaces. Manufacturing and sales infrastructure is created in a timely fashion as new products are introduced. Paramount to our success has been the thorough training of field service personnel and installation contractors, and providing solid technical assistance to specifying engineers. We are dedicated to providing customers with outstanding unique products, built in an environment of innovation, and supported by the best customer care possible.

Dr. John N. Hatsopoulos

Chief Executive Officer

Dr. Hatsopoulos is Partner and Managing Director of Alexandros Partners LLC, a financial advisory firm providing consulting services to early stage entrepreneurial ventures. He is also Chief Executive Officer of American DG Energy and chairman of Glenrose Instruments Inc.  Dr. Hatsopoulos is a co-founder of Thermo Electron Corporation which is now Thermo Fisher Scientific (NYSE:TMO) and the retired President and Vice Chairman of the Board of that company. He is a member of the Board of Directors of American CareSource Holdings, Inc. (NASDAQ: ANCI), TEI Biosciences Inc., and a former “Member of the Corporation” for Northeastern University.  Dr. Hatsopoulos graduated from Athens College in Greece, and holds a Bachelor degree in history and mathematics from Northeastern University as well as Honorary Doctorates in business administration from Boston College and Northeastern University.

Robert A. Panora

Chief Operations Officer

Robert has served as President of Tecogen since 2000. He had been General Manager of Tecogen’s Product Group since 1990 and Manager of Product Development, Engineering Manager, and Operations Manager of the Company since 1984. Over his 27-year tenure with Tecogen, Mr. Panora has been responsible for sales and marketing, engineering, service, and manufacturing. Mr. Panora contributed to the development of Tecogen’s first product, the CM-60 cogeneration module, and was Program Manager for the cogeneration and chiller projects that followed. Mr. Panora has had considerable influence on many aspects of Tecogen’s business, from building the employee team, to conceptualizing product designs and authoring many of the original business documents, sales tools, and product literature pieces. Mr. Panora has B.S. and M.S. degrees in Chemical Engineering from Tufts University.

Bonnie Brown

Chief Financial Officer

Bonnie joined Tecogen in 2005 as the company’s Controller and has served as CFO since 2007. Prior to joining Tecogen, Ms. Brown was a partner at Sullivan, Bille PC, a regional CPA firm, for 15 years. She provided financial, accounting, audit, tax, and business consulting services for several mid-sized companies in the manufacturing, service, and retail industries. Subsequently, Ms. Brown provided consulting, internal control and Sarbanes-Oxley compliance services to a wide variety of publicly traded and closely held companies. Ms. Brown is a CPA and CFE and holds a B.S. in Accountancy from Bentley College and an M.S. in Computer Information Systems from Boston University.

Joseph Gehret

Principal Engineer

Joseph is responsible for managing ongoing technology development for the company. Leveraging 24 years of engineering experience, Mr. Gehret has been instrumental in numerous Tecogen projects, including engineering the mechanical systems of Tecogen’s first chiller and being largely responsible for making it a viable product. He also has extensive controls engineering experience. Over the years, as the need for an integrated control system became more apparent, Mr. Gehret designed and developed the necessary hardware, as well as the software code, for Tecogen’s entire product line, including CHP modules and chillers. He developed the controls for Tecogen’s engine and emission system and was responsible for creating Tecogen’s first major program, WinRMCS, which allows Tecogen to communicate with each piece of equipment in the field via modem. Mr. Gehret has a B.S. in Mechanical Engineering from the Massachusetts Institute of Technology, as well as an M.S. in Nuclear Engineering, also from the Massachusetts Institute of Technology.

Jean Roy

Senior Program Manager

Jean serves as Tecogen’s primary Program Manager. As the principal-in-charge, she is responsible for all aspects of product development, design, testing, and manufacturing. For over 20 years, Ms. Roy has been at the forefront of every major Tecogen project, including the development of the InVerde, a new 100-kW inverter-based CHP module. She has also led the subcontract for Tecogen’s participation in the Consortium for Electric Reliability Technology Solutions (CERTS) Microgrid development program. Currently Ms. Roy oversees sponsored programs by the CEC (California Energy Commisson) for achieving CARB emission compliance and developing an advanced cycle engine for CHP; as well as our own internal product development of the ultra high efficiency heating module. She has a B.S. in Mechanical Engineering from Tufts University, and an M.S. in Mechanical Engineering from Northeastern University.

Jeffrey Glick

Vice President of Sales

Eastern Operations, has a territory that encompasses the Northeast, Midwest, and Southeast U.S., as well as Europe. Mr. Glick’s primary responsibilities include marketing Tecogen’s cogeneration and chiller product lines, managing and training sales representatives, and managing all training-related activities for the engineering community. Mr. Glick also performs the liaison to the natural gas industry in the Northeast. He has been with Tecogen for more than 20 years. Prior to working for Tecogen, Mr. Glick was a Thermal Design Engineer and Project Engineer for CE Lummus Heat Transfer Systems (Bloomfield, NJ), where he was responsible for design and installation of process fired heaters for the petrochemical industry. Mr. Glick has a B.S. from the University of Massachusetts and an M.S. from Manhattan College, both in Chemical Engineering. To contact the eastern regional sales team, click here.

William Martini

Vice President of Sales

Western Operations, has a territory that focuses on California, but also includes 22 other U.S. states, Western Canada, Mexico, the Pacific, and Asia. Mr. Martini is responsible for marketing Tecogen's cogeneration and chiller product lines. He represents Tecogen directly to our customers, including hospitals, schools and colleges, government building operators, and industrial facilities, who he has supported for over 20 years. He performs detailed economic feasibility analyses for customers and assists in managing their installations and ongoing service needs. He works directly with consulting engineers, contractors, Tecogen’s local service offices, utilities, regulatory agencies, and local permitting authorities. He supports our western distribution network, including more than 20 manufacturers’ representatives and their salespeople. Mr. Martini has an A.B. in Engineering Science from Dartmouth College. To contact the western regional sales team, click here.

Joseph E. Gehret

Field Operations Manager

Joseph E. Gehret came to Tecogen in 2009 as an application engineer working with our sales team on new customer projects. It quickly became apparent that Mr. Gehret’s technical knowledge, his degree in construction management and his experience managing complex, multi-million dollar construction projects made him the perfect individual to fill the newly created position of Field Operations Manager. In this position Mr. Gehret oversees our Field Service Technicians nationwide and manages our service and maintenance contracts. Mr. Gehret provides technical support for both our technicians and our customers and is responsible for our installations and turnkey projects. Mr. Gehret graduated Magna Cum Laude from the Wentworth Institute of Technology with a S.B. in Construction Management and was inducted into the Sigma Lambda Chi International Construction Honor Society. To contact our sales team, click here.