About Green H₂

Green hydrogen can greatly reduce mankind’s carbon footprint​

Green hydrogen can greatly reduce
mankind's carbon footprint

Hydrogen production dates back to the 17th century. However, it was not produced from renewable energy. Today, the world consumes large quantities of hydrogen, but right now, it is mainly produced by reforming natural gas (“grey hydrogen”) which releases large volumes of CO2.

Another technology used to produce hydrogen from water is the electrolysis of water. When the electricity required for the electrolysis of water comes from a renewable energy source (such as wind or solar), the hydrogen produced is referred to as “green hydrogen”.

Green hydrogen is essential to decarbonise sectors such as transportation and industry, answering the ecological urgency and the need to reduce COemissions.

Hydrogen explained in video

Hydrogen can be green, but also yellow, blue, or grey. Find out what this means.

Electrolysis is at the centre of an energy ecosystem. By producing hydrogen, electrolysis allows us to exploit renewable energies as much as possible because hydrogen can be stored over the long term, or inserted into the current hydrogen ecosystem, or even injected into existing natural gas networks to decarbonise its use. The combustion of natural gas releases CO2, and, by adding hydrogen, the combustion will release as much energy while only releasing water vapour. In a nutshell, electrolysis makes it possible to link all energy production systems and their many uses.

Leader in the energy transition

John Cockerill Hydrogen offers efficient and reliable solutions for the production of green hydrogen. We meet the needs of major players in the industry, mobility, and energy sectors.
Driven by its pioneering spirit, John Cockerill Hydrogen has already delivered electrolysers to nearly 1,000 satisfied customers in a wide range of industries. Today, we offer some of the most powerful electrolysers on the market, capable of producing up to 1,000 Nm³ per hour (5 MW of power consumption).
A bit of history

The Story of hydrogen and John Cockerill

What we call “green hydrogen” is hydrogen produced using clean energy via the electrolysis process – which is completely carbon neutral. Green hydrogen is different from the usual grey hydrogen (which is called methane vaporeforming). Of course, it also differs from the so-called black hydrogen, produced from coal.

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5 things you don't know about Hydrogen

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