What are the disadvantages of geothermal energy? 

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pohnpei397 eNotes educator| Certified Educator

Geothermal energy has many disadvantages.  Among the most important are:

  • It is only available in a very limited number of places.  It can only be viably extracted from a few places where there are heat sources very near the surface.
  • The energy must be converted into electricity on the spot.  It is not like oil that can be shipped from one place to another and used at any given spot.
  • The costs are very high.  Someone who wants to exploit geothermal power has to build the equipment needed to tap the heat, but then also has to build a power plant and electric lines to connect that plant to the grid.
  • These are the main reasons why geothermal energy is not used very much.

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