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Geothermal power 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
  • and from solar energy absorbed at the surface.

Geothermal power is:

  • cost effective
  • reliable
  • sustainable
  • and environmentally friendly

Unfortunately, it has historically been limited to areas near tectonic plate boundaries. Recent technological advances have dramatically expanded the range and size of viable resources, especially for applications such as:

  • home heating
  • opening a potential for widespread exploitation.

Geothermal electric plants have until recently been built exclusively on the edges of tectonic plates where high temperature geothermal resources are available near the surface. The development of binary cycle power plants and improvements in drilling and extraction technology may enable enhanced geothermal systems over a much greater geographical range.

For example, Kenya generates more than 15% of its electricity from geothermal sources.

Geothermal wells release greenhouse gases trapped deep within the earth, but these emissions are much lower per energy unit than those of fossil fuels. As a result, geothermal power has the potential to help mitigate global warming if widely deployed in place of fossil fuels.

  • Scheme of geothermal power plant:

Picture1. Explanation:

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

Views: 26

Comment by Batandwa Alperstein on March 7, 2010 at 12:04pm
that's a deep concept :) it will be really interesting to see what comes of this new technology. maybe it will connect us more to the earth if we get our energy directly from the source. interesting stuff, luka.
Comment by Sylvain Ratelle on March 12, 2010 at 3:39am
Luka, very interesting subject that is promising to help replace a portion of oil depletion.

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