Hydrogen cars have many advantages over current models, run on gasoline, ethanol, diesel or electricity. Fuel cells generate electricity using hydrogen or natural gas and the energy is stored in batteries, allowing greater autonomy. Moreover, the refill compressed hydrogen gas cell takes about three minutes. Finally, the use of this fuel element and generates no carbon monoxide but water vapor, which helps to reduce pollution. But unfortunately there are still two obstacles: producing cheap hydrogen on a large scale and distribute it to the population.