TECOGEN, Inc. headquarters in Waltham, Mass Company Directions

Tecogen, Inc. is a leading manufacturer of gas engine-driven equipment. The company markets two product lines: TECOCHILL engine-driven chillers in the 25-400 ton size range and 60 and 75 kW TECOGEN cogeneration modules. A new 100kw inverter-based cogeneration unit is being introduced. Tecogen has an in-house sales staff that manage an independent sales representative network based throughout the United States and the world. Tecogen also has a marketing group, and an extensive service network with service employees in several major cities across the United States. History Tecogen was formed in the early 1960's as the R&D/New Business Center of Thermo Electron Corporation. For the next 20 years, this group performed fundamental and applied research in many energy-related fields to develop new technologies. In 1982, the group released its first major product, a 60 kW cogenerator, and followed this five years later with a 150 ton engine-driven chiller. In 1987, Tecogen, Inc. was spun out by Thermo Electron as a separate entity. In 1992, Tecogen became a division of the newly formed Thermo Power Corporation along with two other Thermo Electron subsidiaries, Crusader Engines and FES. Thermo Power acquired NuTemp in 1994, to complete the four divisions of Thermo Power. In 2000, Thermo Power Corporation was dissolved and Tecogen was sold to a group of four investors that included the original founder of Thermo Electron, Dr. George Hatsopoulos; the former president of Thermo Electron, John Hatsopoulos; Craig Drill Capital, a private investment firm based in New York City; and Fox River Financial Resources, a private investment firm based in Batavia, Illinois.