Hydrogen as an energy carrier

Hydrogen will play a significant role in energy supply in the 21st century. In combination with fluctuating renewable energies, hydrogen can largely replace fossil fuels as a source of energy. It makes it possible to chemically store large amounts of surplus electricity via electrolysis. Hydrogen can be converted back into electricity in decentralised fuel cells or gas engines, fed into the gas grid directly or after methanisation, or supplied as a pure substance to high-quality applications in industry and used as a fuel, especially in vehicles with fuel cell drives.