what is hydrogen fuel

Hydrogen fuel 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. Hydrogen fuel can be used in fuel cells or internal combustion engines. Hydrogen is an energy carrier that can be used to store, move, and deliver energy produced from other sources. Hydrogen fuel has many actual and potential uses, including industrial processes, rocket fuel, fuel cells for electricity generation, and powering vehicles. Hydrogen fuel can be produced through several methods, including natural gas reforming, electrolysis, solar-driven, and biological processes. However, most hydrogen comes from fossil fuels, resulting in carbon dioxide emissions. Depending on the source and the resulting environmental impact, hydrogen that is sourced from various methods can be referred to by a variety of terms using metaphorical names of colors: white, green, blue, grey, black, or brown hydrogen.