Karnataka SSLC Karnataka Secondary Education Examination Board
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Alternative Or Non-conventional Sources of Energy - Geothermal Energy

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GEOTHERMAL ENERGY:-

The energy obtained from hot molten rocks and hot fluid trapped inside the earth is called geothermal energy.

  • Due to geological changes, molten rocks formed in the deeper hot regions of earth’s crust are pushed upward and trapped in certain regions called hot spots.
  • When underground water comes in contact with the hot spot, steam is generated.
  • Sometimes hot water from that region finds outlets at the surface. Such outlets are known as hot springs.
  • The steam trapped in rocks is routed through a pipe to a turbine and used to generate electricity.
  • Though the cost of production would not be much, but there are very few sites where such energy can be exploited.
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