Tecogen designs, manufactures, and operates natural-gas-fueled combined heat and power (CHP) systems and related equipment that reduce customer energy costs, emissions, and grid strain for commercial and industrial facilities. The company operates three segments: Products (including InVerde cogeneration units, Tecochill chillers, and Tecofrost compressors featuring proprietary Ultera emissions control); Services (offering long-term maintenance contracts and cloud-based remote monitoring through eight regional service centers); and Energy Production (owning and operating distributed generation systems that sell electricity and cooling under long-term agreements). Typical customers include hospitals, universities, hotels, office buildings, food processors, and municipal facilities in high-utility-rate regions, with products designed for applications under 1 MW electrical capacity and 1,200 tons cooling capacity, achieving 30–60% operating cost reductions and system efficiency exceeding 88% compared to typical grid efficiency of 40–50%.