According to the International Energy Agency (IEA), the production of the fuel cell is not for tomorrow. There are still two major problems.
The first being its cost. At close to 20 000 $ per kilowatt of energy produced, 20 would have to divide this price to produce this type of energy on a regular basis. The second touches the ecology. If we consider that the fuel cell produces only water, the production of hydrogen is costly and particularly polluting since the main source of energy used for its manufacture is in most cases case, coal. To reduce all these problems, it is imperative that governments commit very quickly to a serious and long-term program in the fight against greenhouse gases.