Tecogen Inc.

What they do

Tecogen designs and manufactures commercial and industrial natural-gas-fueled cogeneration (CHP) and chiller systems and sells refrigeration compressors for industrial applications. It operates three segments: Products (equipment sales), Services (operations and maintenance under long-term contracts), and Energy Production (owning and operating on-site energy systems and selling electricity, heat, hot water and cooling under 10- to 15-year agreements through subsidiary ADGE). Customers are concentrated in high-utility-rate regions, primarily California, the Midwest and the Northeast.

Revenue drivers

• Services segment — O&M services for the installed base, primarily Tecogen's own CHP products, through factory service centers in California, Connecticut, Florida, Massachusetts, Michigan, New Jersey, New York and Toronto. It was the largest revenue line in Q2 2026 at $4.38M, or about 76% of the $5.75M quarterly total.
• Products segment — Sale of cogeneration and chiller systems and industrial refrigeration compressors. Products revenue fell 64.0% year over year to $1.13M in Q2 2026 from $3.16M, on lower chiller and cogeneration revenue.
• Energy Production segment — Energy sales from systems owned by ADGE and the 51%-owned ADGNY joint venture. As of December 31, 2025, ADGE owned 14 operational systems with about 1,045 kW of electrical capacity and 850 tons of chiller capacity. Q2 2026 revenue was $0.24M, up 35.4% year over year.

Recent performance

Q2 2026 revenue was $5.75M versus $7.29M in Q2 2025, a 21.2% decrease. The net loss widened to $2.15M from $1.46M, and the operating loss widened to $2.15M from $1.41M, driven by lower Products gross profit and higher operating expenses. For the six months ended June 30, 2026, revenue was $12.08M versus $14.57M, and the net loss was $4.27M versus $2.12M. Diluted EPS was $(0.07) for Q2 2026 and $(0.14) for the six months. Full-year 2025 revenue was $27.1M with a net loss of $8.2M.

Strategy

Management is positioning natural-gas chiller and on-site power generation products for AI data centers, citing power constraints and rising chip cooling requirements. The company hosted 12 product demonstrations in roughly two months, six in person and six virtual, and says the attendees cumulatively represent more than eight gigawatts of operating capacity. Tecogen is building inventory of its dual power source chiller and power generation systems to respond quickly if those opportunities convert. Management also cites a non-data-center backlog of approximately $8M and expects $2M or more in additional orders in coming months, and reports service revenue currently 10% higher than the same period last year.

Risks

• Persistent net losses — Tecogen has an accumulated deficit of $55,888,649 as of December 31, 2025, with net losses of $8,248,755 in 2025 and $4,760,238 in 2024, and no assurance of profitability.
• Revenue concentration in Products — Products revenue fell 64.0% year over year in Q2 2026 to $1.13M, and the company attributes the wider quarterly loss primarily to lower Products gross profit.
• Supplier dependence — Engines, generators and chiller compressor and vessel sets are purchased from large multinational manufacturers, and the loss of a supplier could materially affect the business if replacements are unavailable.
• Build-to-order working capital — Products are generally built to order with customized configurations and significant lead times, requiring component purchases long before delivery and payment.

Outlook

Management expects Q3 2026 product revenue to be higher than Q1 and Q2 2026, citing a non-data-center backlog of approximately $8M plus $2M or more in expected additional orders. It says service revenue is running about 10% above the prior-year period. The stated thesis for growth is conversion of data center demonstrations into orders, supported by inventory build of dual power source chiller and power generation systems.