Hydrogen is a clean fuel that, when passed through a fuel cell, produces electricity and yields only water and heat as a byproduct. Today, the most common methods of hydrogen fuel production are natural gas reforming (a thermal process) and electrolysis. Hydrogen is odorless, can be produced renewably using power from wind and/or solar to power the electrolysis process and emits zero greenhouse gasses when utilized. These qualities make it an attractive fuel option for electric vehicle transportation and electric utility applications. Hydrogen fuel can be used in cars, in houses, and for portable power.