Rochester-based MicroEra Power develops THERMAplus™, an on-site thermal energy storage system that helps commercial buildings shift heating and cooling loads to lower-cost, lower-carbon periods. Its tunable phase-change materials and smart controls integrate with existing HVAC equipment, while expanded laboratory space supports building and testing the system at scale. Founded by CEO Eleanor Rusling and CTO James Grieve, the company’s work is supported by NYSERDA and the U.S. Department of Energy.
Aestus Energy Storage, LLCFounded in 2017, Aestus Energy Storage is developing infrastructure-grade thermal energy storage systems that convert electricity to heat and back again for grid and commercial use. Based in Pittsford, New York, the founder-led company uses a closed-loop Brayton cycle and a proprietary ceramic storage core rather than a chemical battery, targeting 50-plus years of operation with no performance degradation. Aestus is currently moving from research and development into a subscale pilot project, with its first full-scale commercial installation targeted for late 2026.PITTSFORD, NY
EchogenEchogen develops and builds thermal energy systems based on supercritical carbon dioxide, turning waste heat into power and storing electricity as heat for grid and industrial applications. The Akron company brings nearly two decades of sCO₂ development to hands-on engineering, with systems designed, tested, and refined by its own team rather than left at the concept stage. Its 1.5 MWth heat engine completed more than 100 hours of autonomous operation at 600°C in 2024, while its power-conversion technology is also being developed for advanced nuclear reactors.AKRON, OH
FT Energy Controls, LLCFounded in 2019 by chemical engineer Richard Furman and electrical engineer Zachary Thomas, FT Energy Controls develops HVAC equipment and control systems for more efficient delivery of heating, cooling, and fresh air. Its chilled-water system has earned three U.S. patents, with 14 additional U.S. and foreign patents pending, and independent engineering evaluations report energy and capital-cost savings compared with conventional systems. The company’s technology is designed to operate on renewable energy while reducing building emissions.334512PITTSBURGH, PA
Roth North AmericaFounded in Germany in 1947, Roth is a family-owned manufacturer of energy, storage, and heating systems, with Roth North America producing and supplying systems for the United States and Canada since 1995. Its New York operation spans manufacturing facilities in Watertown and Syracuse and employs more than 50 people, with an in-house team that also provides radiant-system design and technical support. The company’s products are used in settings ranging from homes and schools to hospitals and stadiums.SYRACUSE, NY