Producing electricity from renewable energies such as wind and solar is one of the main keys to meet the inevitable growth in electricity consumption and a major climate crisis. But other technologies, other sources and other innovative solutions will be needed, and that's also what EREN Groupe is currently working on.

The development of renewable energies, which are often intermittent but also sometimes overabundant, requires the ability to store these energies and explains the rapid development of chemical batteries. Through geothermal storage technologies as well as the use of phase-change materials, EREN Groupe is following a different path by creating thermal batteries capable of storing both cold and heat.