Founded in Pennsylvania in 2016 to supply energy storage systems to SEPTA Railway, Fortress Power now designs lithium iron phosphate battery and inverter systems for homes, businesses, and industrial facilities. Its scalable storage platform spans whole-home backup and off-grid power through commercial systems, supported by U.S.-based technical service and a network of more than 500 installer partners. The company reports more than 50,000 projects worldwide and offers UL-certified products built around long-life LFP technology.
UL1973
certification
UL9540
certification
UL1741
certification
Ultimate Power CompanyFrom its Coudersport, Pennsylvania operation, Ultimate Power Company builds commercial-grade power inverters, lithium iron batteries, and custom power systems. Its power systems are built in-house to each customer’s needs, with sales and engineering working together on tailored panels and power pods. The company also pairs its equipment with hands-on service and warranties that extend up to five years for inverter-chargers.COUDERSPORT, PA
Dory Power LLCFounded in Cleveland in 2017, Dory Power designs and manufactures lithium-ion battery systems for energy storage and uninterruptible backup power. Its Sentry line is designed and assembled in the USA and produced in Greater Cleveland, pairing a full-metal enclosure with AI-driven monitoring and solar recharging for quiet, long-duration backup. Dory systems serve settings ranging from homes to hospitals, laboratories, and data centers across the United States.EUCLID, OH
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
Renon Power Technology IncFounded in 2014 by U.S. Army veteran Paul Buckwalter and fellow veterans, Renon Power Technology develops and manufactures battery energy-storage systems for homes, businesses, and utility-scale applications. The company’s path runs from its first home storage system in 2017 to commercial and industrial solutions in 2019, a new R&D center in 2022, and utility-scale systems in 2023. Renon combines battery and energy-management technology with intelligent fire safety and structured quality controls, and operates through branches in the United States, Europe, and Asia.335910READING, PA