This week’s main focus was on Tecogen Inc. (NYSE:TGEN) following its Q4 and full-year 2025 results. We provided an extended take after reviewing the earnings call, where the key points relate to the company’s progress toward securing initial data center contracts, the role of its Vertiv Holdings, Llc (NYSE:VRT) relationship, and the continued customer friction around being an early adopter. More on this later, including our first attempt at a financial model based on hidden clues provided by the company that we don’t think most investors have caught on to.