Renewable energy :

An inspiring energy

What is hydrogen (H2)? 

Green hydrogen; the energy vector of the future!

Hydrogen is the main constituent of the sun, the star that warms us and helps maintain the climate balance on our planet. Although it is the most abundant element in the universe, hydrogen barely exists, if at all, in its pure state in nature. Due to its strong reactivity, it associates with other atoms to form more stable molecules, such as water (H20) or methane (CH4). It is considered an energy vector because, once isolated, it can store, transport and replenish energy.

How is green hydrogen produced?

To put it simply, it is produced by applying an electrical charge to water, which breaks the link between the atoms forming the H2O molecule, thereby yielding two distinct gases: hydrogen and oxygen. This procedure is called electrolysis. The resulting hydrogen is then captured for future use of the potential energy it contains, whereas the oxygen can be captured and transported, or simply released into the atmosphere.

To obtain green hydrogen, we have to use electricity generated through 100% renewable sources such as hydroelectric dams, wind farms, solar farms, biomass and geothermal energy.

When it is used, hydrogen reacts with the ambient oxygen and releases a tremendous amount of energy in the form of heat or electricity, giving off nothing but water vapour as its combustion gas.

Where does hydrogen come from?

Hydroelectric dam


Wind farms


Photovoltaic parks


The biomass



Electrolysis of water

Store safely

Distribution on the network

Carbon-free heating and electricity