Why NASA Is Going With Fuel Cells Instead Of Batteries For Energy Storage On The Moon

NASA is testing regenerative fuel cells for lunar energy storage instead of batteries due to two-week-long Moon nights. The fuel cells convert hydrogen and oxygen into electricity and water, which is then split to recharge. The test unit weighs less than a similarly-sized battery, critical for high launch costs. Planned Artemis Base Camp near the Moon's South Pole could use local water ice for fuel.