Question
Fri August 31, 2012 By: Manisha Nayak
 

What are the advantages and disadvantages of hydroelectricity?

Expert Reply
Mon September 03, 2012
Advantages:
1. Once a dam is constructed, electricity can be produced at a constant rate.
2. Dams are designed to last many decades and so can contribute to the generation of electricity for many years / decades.
 
Disadvantages:
1.Dams are extremely expensive to build and must be built to a very high standard.
2. The flooding of large areas of land means that the natural environment is destroyed.
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