Green hydrogen is a hydrogen-produced fuel obtained from electrolysis of water with electricity generated by low-carbon power sources. It is a clean fuel that, when consumed in a fuel cell, produces only water. It can be produced from a variety of domestic resources, such as natural gas, nuclear power, biomass, and renewable power like solar and wind. These qualities make it an attractive fuel option for transportation and electricity generation applications. It can be used in cars, in houses, for portable power, and in many more applications. Also, it is an energy carrier that can be used to store, move, and deliver energy produced from other sources.