A hydrogen internal combustion engine (ICE) vehicle uses a traditional ICE that has been modified to use hydrogen fuel. The U.S. Department of Energy's FreedomCAR and Vehicle Technologies Program has identified hydrogen-powered ICE vehicles as an important mid-term technology on the path to the hydrogen economy.
Hydrogen-powered ICEs also have many operating advantages. They perform well under all weather conditions, require no warm-up, have no cold-start issues (even at subzero temperatures), and are highly fuel efficient — up to 25% better than conventional spark-ignition engines.
The Advanced Vehicle Testing Activity has teamed with Pinnacle West (holding company of Arizona Public Service) and Electric Transportation Applications to construct and operate a hydrogen/CNG generation and fueling facility in Phoenix, Arizona.
