Hydrogen fuel cells use hydrogen as a fuel in an electrochemical process that combines hydrogen and oxygen to produce electrical energy and water. Because it comes from water, it is abundant.

Hydrogen 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 (cars, trucks, planes), home, and electricity generation applications. Currently, the main problem with hydrogen is cost. However, with evolving innovations in technology, that problem should be minimized in the near future.