Founded in 2005, Sunamp is a Scottish thermal-storage company whose factory, research laboratories, and customer training centre sit near Edinburgh. It makes compact heat batteries for homes, commercial buildings, and industrial users, with a focus on making renewable energy practical where conventional hot-water storage would take up too much space.
MicroEra PowerRochester-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.ROCHESTER, NY
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
SolisStorageAs the dedicated energy-storage subsidiary of Solis (Ginlong Technologies), SolisStorage develops complete systems that store and manage power for homes, businesses and utility applications. More than two decades of power-electronics expertise support its work across power-conversion systems, energy management and system integration, with deployments in over 100 countries and regions. The company maintains more than 50 global service outlets and an R&D team listed at over 160 members on its profile page.DUBLIN, OH
Teko SolarEstablished in 2010, Teko Solar grew from solar-system integration and power-plant development into a manufacturer of solar modules and storage batteries. Its manufacturing base is in China, supported by offices in New York, Auckland and Shanghai and a California warehouse that helps it respond to immediate demand. The company also develops integrated solar-storage-charging systems for commercial and retail users.NEW YORK, NY