As the world reconsiders its energy options in light of the sources of green house gasses, hydrogen power has been discussed more and more as a viable non-polluting means to achieve goals set by the Kyoto protocol. Pertaining mostly to the transportations sector, hydrogen fuel cells have received significant attention and undergone extensive research. A renewable energy system using hydrogen will not produce any pollution. It is possible to eliminate toxic emissions from cars by replacing the internal combustion engine with hydrogen fuel cells. Hydrogen cars produce only water as exhaust. Bellona was the first organization to put hydrogen fuel cell vehicles on the road in Norway in 2005. However, the biggest challenge for the hydrogen car has turned out to be how to organize and finance hydrogen fuel stations.