What sort of fuels can be used in a fuel cell?
Fuel cells can promote energy diversity and a transition to renewable energy sources. Hydrogen — the most abundant element on Earth — can be used directly. Fuel cells can also utilize fuel containing hydrogen, including methanol, ethanol, natural gas, and even gasoline or diesel fuel. Fuels containing hydrgoen generally require a “fuel reformer” that extracts the hydrogen. Energy also could be supplied by biomass, wind, solar power or other renewable sources. Fuel cells today are running on many different fuels, even gas from landfills and wastewater treatment plants.
