Tecogen Inc. $TGEN

What the company doesAI summary of filing

Tecogen Inc. designs, manufactures, and sells natural-gas-fueled engine-driven combined heat and power (CHP) systems and chillers that reduce energy costs and greenhouse gas emissions. The company operates three business segments: Products, which designs and manufactures cogeneration and chiller systems sold to commercial and industrial customers; Services, which provides operations and maintenance services for its products under long-term contracts; and Energy Production, through its subsidiary ADGE, which installs and owns energy systems and sells electricity, heat, hot water, and cooling to customers under long-term energy sales agreements. Tecogen is revenue-generating across all three segments and targets customers primarily in high-utility-rate regions including California, the Midwest, and the Northeast. [10-K 2026-03-19]

Segments: Products (CHP and chiller systems), Services (operations and maintenance), Energy Production (distributed generation and energy sales), Ultera emissions control technology