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.