Primus Power
Primus Power is an American energy storage company that produce stationary energy storage systems. Their batteries support the electric grid. Based in Hayward, California, Primus is shipping a zinc bromine flow battery, called the EnergyPod. Since their founding in 2009 Primus has received over $100M in equity capital from international venture capital and strategic investors, and over $30M in government grants from the US Department of Energy, Advanced Research Projects Agency-Energy, US Trade and Development Agency, and the California Energy Commission.
EnergyPods are modular batteries for commercial, industrial, microgrid and utility customers. The low maintenance systems provide five hour of discharge energy and are rated for a twenty-year life span, necessary for grid applications. Primus has numerous customers including Microsoft, Puget Sound Energy, , HCP, Goldwind, Israel Chemicals and .
On February 21, 2017, the company announced production of their second generation product, EnergyPod 2. Streamlined for production, it features a small footprint, reduced cost of goods, high reliability components, and a sturdier enclosure. The modular unit is designed to last twenty years and supply a system capability from 25 kW to 25 MW with five hour discharge duration.
The company's energy storage systems decouple instantaneous electricity demand from supply generation, bolstering the stability and security of the electric grid, and helping accelerate the penetration of wind and solar energy. The company has over sixty patents in chemistry, cell design, and system engineering granted by over more than fourteen countries.
