Hystar

Founded in 2020, Hystar is a private company headquartered in Høvik, Norway with approximately 51-200 employees specializing in Hydrogen.

Hystar is a Norwegian cleantech company developing and manufacturing high-efficiency PEM electrolysers for green hydrogen production. The company specializes in proton exchange membrane electrolyser technology built on over a decade of research at SINTEF. Hystar's core technology, Eos, achieves approximately 10% higher efficiency than conventional PEM electrolysers at 47.5 kWh/kg at 100% load. The company offers a portfolio of hydrogen production solutions: Eos (modular 0.55 MW stack), Vega (containerized 5 MW plug-and-play system), and Orion (20 MW modular cluster for large-scale plants). Hystar's patented design features ultra-thin membranes and innovative anode air feed and cathode water feed architecture to reduce electrical resistance and improve safety. The technology is designed for industrial applications including heavy industry, refining, chemicals, ammonia production, maritime transport, and aviation fuels. Currently operating with 100 MW annual production capacity, Hystar is scaling with a planned 4.5 GW automated factory.