Geothermal energy - Presentation

Find out more about our geothermal solutions

Geothermal energy is energy from the earth. Geothermal energy is used to produce heat or cold and / or to produce electricity. It is a renewable, local and environmentally friendly energy that combines energy performance and economy. 

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.

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

THE THREE MAIN PILLARS OF GEOTHERMAL ENERGY AT STORENGY

Geothermal energy for buildings and eco-districts

Found at depths of up to a few dozen metres, very low-energy geothermal energy can be used to heat small facilities using heat pumps. The production is said to be decentralised because it is concentrated on a specific location: a building or an eco-district for example. This type of geothermal energy is available everywhere, regardless of the local geography. 

Heating and cooling grids

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.

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.