At a Glance 2021

Hydrogen, a Promising Energy Carrier

Hydrogen, a Promising Energy Carrier

Two Production Process and Three Colors

1. FROM FOSSIL ENERGIES

Gray hydrogen

When exposed to very hot steam, natural gas reacts to produce hydrogen. This is the most widely used process, but it has the disadvantage of releasing CO2.

Blue hydrogen

To decarbonize gray hydrogen, the released CO2 can be captured and stored. This is what is known as blue hydrogen.

2. FROM RENEWABLE ENERGIES

Green hydrogen

Green hydrogen is produced via water electrolysis using renewable energies. Green hydrogen has the most attractive potential for the future.

GREEN HYDROGEN’S FOUR AREAS OF APPLICATION

  • It can be injected into natural gas networks, thereby helping to decarbonize them.
  • It offsets the intermittent nature of renewable energies by offering a storage solution.
  • It promotes the development of electric mobility when combined with a fuel cell.
  • It helps decarbonize industrial processes.