Can hydrogen be stored?

As storage is essential for its use as an energy carrier, there are several solutions for these different uses:

• Gaseous: compressed at high pressure (up to 700 bars) in specially adapted, reinforced cylinders for underground geological storage (aquifers, salt caverns);

• Liquid: cooled to -253°C, which increases its density and therefore reduces the size of the storage;

• LOHC (Liquid Organic Hydrogen Carrier): via a chemical process that houses the gas in the middle of organic liquid molecules carrying H₂;

• Ammonia: naturally dense in hydrogen, it can be liquefied from-33 degrees.

Teréga is part of the energy transition with its HysoW (Hydrogen SouthWest Corridor) project. An infrastructure, transport and storage project for renewable H₂ and low-carbon by 2030. The planned salt cavern installations will guarantee security of supply in Europe.