During the last decades, the economic crisis and environmental constraints for the global energy economy based on hydrocarbons followed. The increase in energy demand has led to a reduction in the capacity of fossil fuels, which will consequently threaten the global energy supply and further burden the environment. Therefore, it is vitally important to find a substitute for hydrocarbon fuels. One of the alternatives is hydrogen, which has several advantages. The use of hydrogen creates flexibility in energy production, achieving a link between fossil, nuclear and renewable sources of energy and electricity. The potential of hydrogen is noticeable for the transformation of carbon-free electricity sources, and during the last decade various research and development programs have been launched to develop new integrated technologies for the management of energy from renewable sources.