Geothermal Energy

Geothermal Energy

 

Background on geothermal energy

Geothermal energy (from the Greek roots geo, meaning earth, and thermos, meaning heat) is power extracted from heat stored in the earth. This geothermal energy originates from the original formation of the planet, from radioactive decay of minerals, from volcanic activity and from solar energy absorbed at the surface. (Wikipedia)

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HERE is the US Department of Energy DOE Geothermal site


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Picture of a Geothermal System

Key for picture of Enhanced geothermal system 1:Reservoir, 2:Pump house, 3:Heat exchanger, 4:Turbine hall, 5:Production well, 6:Injection well, 7:Hot water to district heating, 8:Porous sediments, 9:Observation well, 10:Crystalline bedrock

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 Global Geothermal Electric Capacity

(Wikipedia)

Upper red line is installed capacity;[18] lower green line is realized production.[8]

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What's the picture at the top of the page? It's the Nesjavellir Geothermal Power Station in Iceland.

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