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2. Geothermal heat networks
Geothermal energy extracts heat from the subsoil and uses it to heat buildings or generate electricity.
There are several types of geothermal energy for different uses:
High-energy geothermal energy (> 150 °C): drawn from geologically active environments, it is used to generate electricity. The only French site is located in Guadeloupe;
Low- and medium-energy geothermal energy (between 30 and 90 °C, and between 90 and 150 °C): drawn from depths ranging from a few hundred meters to 3,000 m, this deep geothermal energy is used by heating networks;
very low-energy geothermal energy (< 30°C): present at depths of up to a few dozen meters, this superficial geothermal energy can be used to heat small installations (individual homes, buildings, etc.),...
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Geothermal heat networks
Bibliography
Also in our database
Websites
CEREMA – CETE de l'Ouest http://www.cete-ouest.developpement-durable.ouv.fr/reseaux-de-chaleur
Interprofessional wood-energy committee http://www.cibe.fr
French Environment and Energy Management Agency...
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