Is hydrogen a clean energy source?

Hydrogen is a clean energy carrier. Particularly if a decarbonised production method is used.

In fact, hydrogen can be produced from a number of sources: fossil fuels (natural gas, coal etc.), but also renewable sources (electricity and water, biomethane etc.). The water hydrolysis process uses electricity to break down the water molecules, releasing hydrogen. That process emits no CO2 and, if the electricity being used comes from renewable sources, the energy obtained can be considered clean. In that case, we talk of “green” hydrogen.

Hydrogen can also be seen as a clean form of energy in terms of its use too. When used in a fuel cell to produce electricity, it gives off only water, with no polluting emissions.

What is more, by diversifying the energy mix, hydrogen allows us to depend less on fossil fuels and produce energy more locally.

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