How much hydrogen is consumed to produce 1 kWh of electricity using a PEM fuel cell?
In general, to produce 1 kilowatt (kW) of electricity for 1 hour (one kilowatt-hour, kWh) from a proton exchange membrane (PEM) fuel cell requires about 25-27 standard cubic feet (scf) of hydrogen. A standard cubic foot (scf) is the amount of hydrogen that occupies one cubic foot of space when it is not pressurized (in other words, at regular atmospheric pressure) and at 60 degrees F (a little cooler than room temperature). To convert to other units, visit our page of conversion tables and calculators.
