Our proton exchange membrane (PEM) electrolysers use only renewable electricity and water to create green hydrogen through a process called electrolysis. The green hydrogen produced can be stored as a gas or liquid and can be released into the gas grid, be used as clean vehicle fuel, or in a host of industrial processes, significantly reducing emissions in logistics and heavy industry. As they can be switched on within seconds, PEM electrolysers have the edge in being able to rapidly react to fluctuations typical of renewable power generation. In comparison, the start-up time for alkaline water electrolysis is around an hour, making our technology ideally suited for grid balancing and meeting energy deficits.