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As a pioneer in geothermal energy, Storengy organises many projects related to this green energy.

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Find out more about our geothermal solutions

Underground storage is an essential component of the gas system, offering flexibility. It provides both a swift response to gas consumption peaks which may occur at certain times of day and a way of adjusting to seasonal variations. It also helps to secure the energy supply by making up for temporary interruptions of natural gas supplies.

On the subject of geothermal energy…

As a member of the ENGIE Group and in collaboration with other group subsidiaries and partners, Storengy is a key player in the development of geothermal energy.

With almost 70 years of experience in underground exploitation and more than 600 wells, Storengy brings its state-of-the-art industrial expertise to the development of high- and low-temperature geothermal sites. From catchment studies to subsurface operation, we support our partners in their geothermal projects, whether for district heating networks or power generation.


“Storengy aims to become a leader in geothermal energy by 2030.”


Watch our videos to find out more about geothermal energy and drilling:




Power production, or deep geothermal energy

This type of production is called deep geothermal energy, because energy is drawn from depths of between 2,000 and 3,000 metres at a temperature above 150° C. Deep geothermal energy transforms underground heat into power, which is therefore renewable. This type of geothermal energy can be found in geologically active environments.

Heating and cooling grids, or low-temperature geothermal energy

Low-temperature geothermal energy is energy drawn from several hundred meters underground at a temperature between 30° and 90° C. It is the main source of geothermal energy used by heating and cooling grids. Naturally occurring subsurface energy is used to supply heating and cooling to a large area such as a city or an industrial site.  
It is a centralised solution since production resources are pooled in order to provide heating and cooling to the area. This type of geothermal energy is used in three parts of France: the Paris region, Aquitaine and Alsace.

Decentralised heating and cooling, or very low-temperature geothermal energy

Very low-temperature geothermal energy comes from a few dozen meters underground and can heat small spaces using heat pumps. It is a decentralised solution since energy is produced in a specific location such as a building or an eco-neighbourhood.This type of geothermal energy is available everywhere, regardless of local geography.