| 1977-1982 |
Initial design of the nation’s first packaged “cogenerator”, the Tecogen CM-60 Cogeneration Module, followed by prototype development and lab testing |
| 1983 |
First commercial sales of Tecogen Cogeneration Module |
| 1985 |
First Tecogen factory service offices opened around US, to provide local support for products and offer comprehensive service agreements that have proven to be very popular |
| 1986 |
First Remote Monitoring and Control System (RMCS) developed, for monitoring, control, diagnostics, and data-logging by a remote user |
| 1987 |
Specialized cogeneration modules developed for US and Japanese markets (e.g., synchronous generators, diesel-fueled, sizes 30 to 850 kW) |
| 1987 |
First standardized natural gas engine-driven screw chillers ever introduced (Tecochill CH-150; water-cooled, first generation) |
| 1988 |
First million total operating-hours logged on Tecogen units installed at actual customer sites |
| 1988 |
High-output CM-75 Cogeneration Module introduced |
| 1988 |
First cogeneration modules ever to obtain ETL product listing, verifying compliance with national IEEE/UL standards |
| 1989 |
First natural gas engine-driven chillers ever to obtain ETL product Listing |
| 1990 |
First low-emissions units developed for Southern California |
| 1992 |
Second-generation gas engine-driven screw chiller introduced (Tecochill ST Series, with streamlined design) |
| 1993 |
First two-stage catalytic converter units sold in Southern California |
| 1994 |
Unique standardized design concept extended into larger chiller sizes (DT & HT Series, up to 1000 tons) |
| 1997 |
Air-cooled gas engine-driven chillers and condensing units developed (Tecochill RT Series) |
| 1998 |
“TecoNet” microprocessor controller upgrade to the original microprocessor design (now includes Modbus BMS interface capability) |
| 1999 |
First R-134a-based engine-driven chillers ever introduced, utilizing environmentally friendly refrigerant and offering the highest efficiencies (IPLV COP’s) of any gas chillers (Tecochill STx & DTx Series, third-generation water-cooled) |
| 2002 |
First engine-driven CHP module (and still the only one) to obtain full California Electric Rule 21 certification, for simplified interconnection |
| 2004 |
Factory turnkey installation capability expanded, especially in California |
| 2005 |
Standardized “TCP” cogeneration system control package developed, with built-in master/slave control. Factory-furnished system provides single-source control of multiple CHP units and building hot water loads, to maximize efficiency and savings for customers. |
| 2008 |
Inverter-based InVerde engine-driven CHP module introduced, the only engine-driven inverter-based packaged CHP module in the world. Offers customers “seamless” transfer capability (CERTS-compatible), black-start option, variable speed operation with improved part-load efficiency, and streamlined grid interconnection. Development effort supported in part by California Energy Commission (CEC) and others. |
| 2009 |
First 50-Hz InVerde inverter-based CHP units begin operation in Poland. This brings the total number of countries worldwide where Tecogen systems are installed to 13. |
| 2010 |
First inverter-based CHP module to obtain CE mark for European Union (EU). |
