WHICH FUELS (gases) CAN BE USED FOR PEM FUEL CELLS?
Hydrogen is the primary fuel source which can be used directly in a PEM fuel cell. Other fuels that can be used include methanol, ethanol, natural gas, coal gas, gasoline and other fuels containing hydrocarbons. PEM fuel cells today are running on many different fuels, even gas from landfills and wastewater treatment plants. Using a fuel other than pure hydrogen requires a reformer or fuel processor.