Dr. John N. Hatsopoulos

Dr. John N. Hatsopoulos is Co-Chief Executive Officer of American DG Energy Inc. He is also Chairman of the board of GlenRose Instruments Inc. and Chief Executive Officer of Tecogen Inc. Dr. Hatsopoulos was the President, Chief Financial Officer and Vice Chairman of the board of Thermo Electron Corporation, which is now Thermo Fisher Scientific (NYSE: TMO). He is a member of the board of directors of TEI Biosciences Inc. and Ilios Inc., and a former “member of the corporation” for Northeastern University. Dr. Hatsopoulos graduated from Athens College in Greece, and holds a bachelor’s degree in history and mathematics from Northeastern University as well as honorary doctorates in business administration from Boston College and Northeastern University.