Anion exchange membrane water electrolysis (AEMWE) is a promising technology for the production of green hydrogen, a pillar of the energy transition. It combines the advantages of proton exchange membrane (PEM) and liquid alkaline approaches while avoiding their chief pitfalls, i.e., an AEM electrolyser can operate at relatively high current-densities (> 1 A cm-2) without the need for critical raw materials in any of its components. Moreover, these devices can run perfectly well if electrolyte is supplied only to the anode side, the cathodic reaction being maintained simply by electrolyte which diffuses across the membrane from the other side of the cell. This approach, known as “dry cathode”, results in hydrogen of greater purity, and facilitates its removal and storage at elevated pressure. Nonethless, this operating mode presents significant challenges in terms of water and gas management to maintain stability at high current-densities.