!!!Geothermie

Geothermal Power (heat from the earth): The energy crisis of the 
mid-1970s drew particular attention to research into renewable 
energies ( alternative energy sources), including geothermal energy. 
In Austria, hot subsoil bodies of water with temperatures between 40 
and 100°C are found in the Upper Austrian alpine foreland, the 
Vienna Basin and the Styrian/ South Burgenland Basin, where geothermal 
energy can be put to use as an environmentally friendly alternative 
energy. Prerequisites for practical use are a high temperature 
gradient and the presence of subsoil watercourses in the rock 
formations. In areas offering favourable conditions exploratory 
drilling has been performed on a major scale since the 1990s. In many 
cases hot springs are used for both balneological purposes and energy 
production. The technology of  heat pumps for the use of shallow 
ground water is another important application of G. These systems 
utilize the lower temperatures of groundwater with about 10°C. A 
significant feature of both methods is the re-injection of low-energy 
water into the ground to avoid permanently affecting the ecological 
balance of groundwater.


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