Hydrogen is a gas with chemical properties of major energy interest. Hydrogen is considered an "energy carrier" because it has the potential, after production, to be stored, transported and used.

 

Thanks to technological advances that have improved yields and process reliability, hydrogen can be produced by electrolysis of water, using decarbonised or renewable electricity. It is then said to be "decarbonised" because neither its production nor its use emits CO2. Decarbonised hydrogen will contribute to achieving the objectives that France has set itself in terms of developing renewable energies, reducing greenhouse gas emissions and pollutants and reducing fossil fuel consumption.