Hydrogen Energy

Hydrogen, the simplest and the most abundant element in the universe, is found in water and many organic compounds such as methane or natural gas. It can be separated from hydrocarbons by reforming, application of heat, or by electrolysis, separation of water into oxygen and hydrogen.
Hydrogen, although high in energy, produces almost no pollution when burned, but its low density requires special compression and storage facilities. NASA uses liquid hydrogen to propel space shuttles; hydrogen fuel cells power the shuttle’s electrical systems, producing water as a byproduct, which the crew drinks.
Fuel cells combine hydrogen and oxygen to produce electricity, heat and water. In the future, hydrogen may join petroleum as an important energy source.

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