Hydroelectricity is a Non-Conventional source of energy

Earlier we used flowing water to generate electricity, but using Dams to generate electricity is a new concept. Thus, Hydroelectric Energy is a Non-Conventional Source of Energy

 

We generate Hydroelectric Energy using a Hydroelectric Power Plant

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Hydroelectric Power Plants are used where Water is at a height

 

In Hydroelectric Power Plant, Potential Energy of the Water at a height is converted into Mechanical Energy by Rotating the Turbines

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This Mechanical energy is further converted into Electrical Energy

 

To put the water at a height, we use Dams.

 

Dams are formed in rivers to stop their flow, and keep it at a height.

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Advantages of using Hydroelectric Power Plant

  • The generation of Electricity from Hydroelectric Power Plant does not cause any pollution
  • Since water in the dams will get filled by itself due to rain, it is a renewable source of energy
  • The construction of dams help in controlling floods and providing irrigation

Disadvantages of using Hydroelectric Power Plant

  • Dams can only be constructed in specific number of places, like, hilly terrains
  • Large areas of agricultural and human land is submerged under water. 
  • The vegetation which is submerged under water rots in anaerobic conditions which leads to generation of huge amounts of methane. Methane is a greenhouse gas
  • There is a problem of proper displacement of people who are living in the area near the dams
  • Due to construction of dam, the fish in the area downstream of dam do not get enough nutrients and the production of fish decreases

 

  1. Class 10
  2. Chapter 14 Class 10 - Sources of Energy

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 9 years. He provides courses for Maths and Science at Teachoo.