![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
1. Geothermal energy: a natural source of thermal energy
1.1 Definition
Geothermal energy consists of extracting the earth's internal energy to produce heat or electricity in the form of a natural heat flow. In some regions, hot water rises to the surface in the form of geysers, steam jets (Laderello in Italy) or hot springs (Chaudes-Aigues, La Preste) (figure 1 ).
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference
This article is included in
Finishing work and technical packages
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Geothermal energy: a natural source of thermal energy
Standards and norms
- Water and geothermal drilling – Construction, monitoring and abandonment of groundwater catchment or monitoring facilities using boreholes - NF X10-999 - Août 2014
- Water and geothermal drilling – Vertical geothermal probe (vertical U-shaped geothermal exchanger with closed-circuit heat transfer fluid) – Design, implementation, maintenance, abandonment - NF X10-970 - Janvier 2011
- Water and geothermal drilling...
Regulations
Decree no. 78-498 of March 28, 1978 on geothermal exploration and exploitation permits.
Decree no. 2006-648 on mining permits and underground storage permits
Decree no. 2006-649 of June 2, 2006 on mining and underground storage operations and the mining and underground storage policy.
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference