Lhyfe, one of the world’s pioneers in the production of green and renewable H₂ delivered 350 kg of green H₂ to natural gas expert Géométhane, last Thursday, for it to test injecting H₂ into salt caverns at its Manosque site in the south of France. The injection, which was completed within the day, is a key test for the next stage of a major project led by the DLVAgglo urban community and Géométhane, which aims to accelerate the decarbonization of the Marseille-Fos-Sur-Mer industrial site (in the south of France), in particular using green H₂.

With this experiment, Géométhane, which currently stores natural gas in salt caverns, seeks to test injecting H₂ into these same caverns, in order to study how H₂ behaves. The H₂ was injected into the natural gas system to reach a storage well and will remain there for observation for several weeks, before being extracted and analyzed.

Storing H₂ in salt caverns will contribute to local energy independence by helping to balance the production and use of different energy sources – H₂ can be extracted on demand to cope with peaks in consumption, or re-injected to store surplus energy supplied by nuclear power stations and renewable energy at times when energy use is lower.

Matthieu Guesné, Founder and CEO of Lhyfe said, “We are proud to be contributing to this trial, which demonstrates the extent of the possibilities offered by H₂, not only in terms of decarbonizing mobility and industry, but also in terms of energy storage, which is a necessary component of our energy independence. As more and more sites begin to produce green H₂, the question of storage will become central. The use of salt caverns is a serious option being considered all over Europe. This trial will provide initial feedback on the subject.”