NASA’s Regenerative Fuel Cell Project develops rechargeable hydrogen-and-oxygen energy storage for lunar surface operations. NASA Glenn designed and assembled the laboratory system, completing initial tests in 2025. In May 2026, researchers were preparing complete-system tests that would store the gases generated during recharge for the first time. Fuel-cell discharge produces electricity, heat and water; externally powered electrolysis regenerates the reactants. Intended applications include habitats and rovers through long lunar nights. Harsher environmental testing remained ahead of a lunar mission. The Space Technology Mission Directorate funds the work through Game Changing Development.
NASA’s Regenerative Fuel Cell Project develops rechargeable hydrogen-and-oxygen energy storage for lunar surface operations. NASA Glenn designed and assembled the laboratory system, completing initial tests in 2025. In May 2026, researchers were preparing complete-system tests that would store the gases generated during recharge for the first time. Fuel-cell discharge produces electricity, heat and water; externally powered electrolysis regenerates the reactants. Intended applications include habitats and rovers through long lunar nights. Harsher environmental testing remained ahead of a lunar mission. The Space Technology Mission Directorate funds the work through Game Changing Development.