Considering Power Quality in Energy Efficiency of Alkaline Water Electrolyzers

Water electrolysis may become a major application for power electronics, since hydrogen is a key element for energy storage, renewable hydrocarbons, fuels, and chemicals. Electrolyzers require DC power and their operation depends on electric conditioning. Electrolyzers typically operate at relatively low voltages and high currents, which can be challenging for power electronics. This paper studies the efficiency of alkaline water electrolysis and improvement of electrolyzers from the viewpoint of power electronics.