1. Baby Kumari
  2. Sources of Energy
  3. Sunday, July 03 2016, 09:12 PM

What are the disadvantages and limitations of producing hydel electricity using dams?

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The dams can be constructed only in a limited number of places,preferably in hilly terrains. Large areas of agricultural land and human habitation are to be sacrificed as they get submerged. Large eco-systems

are destroyed when submerged under the water in dams. The vegetation which is submerged rots under anaerobic conditions and gives rise to large amounts of methane which is also a green-house gas. It creates

 

the problem of satisfactory rehabilitation of displaced people.

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