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Electrolyzers are machines that use electricity to split water into hydrogen and oxygen and are the core technology in green hydrogen production

Electrolyzers work by using electricity to split water molecules into hydrogen and oxygen through a process called electrolysis. The device consists of two electrodes—an anode and a cathode—immersed in an electrolyte solution. When an electric current is applied, water molecules at the anode lose electrons (oxidation), producing oxygen gas and positively charged hydrogen ions. These ions travel through the electrolyte to the cathode, where they gain electrons (reduction) to form hydrogen gas. This process can be powered by renewable energy sources, making the production of green hydrogen a viable solution for decarbonizing various industries.1

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Footnotes​

  1. Department of Energy. (n.d.). Hydrogen production: Electrolysis. Department of Energy. https://www.energy.gov/eere/fuelcells/hydrogen-production-electrolysis ↩