Reliable off-grid power supply utilizing green hydrogen

Abstract Green hydrogen produced from wind, solar or hydro power is a suitable electricity storage medium. Hydrogen typically employed as mid- to long-term energy storage, whereas batteries cover short-term storage. can be by any available electrolyser technology [alkaline electrolysis cell (AEC), polymer electrolyte membrane (PEM), anion exchange (AEM), solid oxide (SOEC)] if the fed renewable electricity. If operates under elevated pressure, simplest way store gaseous feed it directly into an ordinary pressure vessel without external compression. The most efficient generate utilizing fuel cell. PEM cells seem favourable do so. To increase capacity factor of and electrolysers, both functionalities integrated one device using same stack. Within this article, different reversible technologies well their advantages readiness levels are presented, potential limitations also discussed.