Hystar is a Norwegian clean-technology company that develops and manufactures proton exchange membrane (PEM) electrolysers for producing renewable (green) hydrogen from water using renewable electricity. Its offerings center on high-efficiency electrolyser stacks and integrated systems for industrial, energy, and mobility uses, supporting the decarbonization of sectors such as chemicals, refining, power, steel, and transport.
The company provides engineering, integration, and lifecycle support for hydrogen production plants and collaborates with equipment suppliers, project developers, and end users. Hystar’s technology is designed for modular deployment and scalable capacity, enabling both on-site and centralized hydrogen generation for applications including chemical feedstocks, fuel supply, and grid balancing.