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Geothermal Energy in EUROPE

Geothermal Heat-Flow Density

Geothermal Heat-Flow Density europe

In relation to the surface area, most use is currently made of geothermal energy in Iceland and Switzerland. The prerequisites for this differ between the two countries:
Iceland is a sparsely populated country but with a great deal of volcanic activity. Geothermal energy at high temperatures is used there for heating purposes, as well as for generating electricity.
Switzerland, on the other hand, exhibits only slightly above average geothermal heat flow density. Here the greater part of exploitation is achieved using heat pumps.

Because the geothermal heat flow density is very small, heat stored in the ground or in bedrock is exploited first of all. As a result of local cooling, heat flows from the surroundings to replace that removed until such time that equilibrium is restored. In the course of this, particular attention is to be paid to long-term sustainability.
Furthermore, questions regarding usage rights arise and above all in densely-populated areas, since heat extraction occurs across plots of land or political borders.

The values are based on the Survey of Energy Resources 2004, published by the World Energy Council WEC. They have been used with permission of the editor Elsevier, Oxford.



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Related GENI Resources
Definition Geothermal Energy
Current Articles on Renewable Energy Resources and Transmission
National Energy Grid Maps

EGEC (European Geothermal Energy Council)