5 disadvantages of hydro electric power schemes.

Hydro-Electric Power (HEP) refers to the production of electricity using the force of flowing water. Example of hydroelectric power scheme in Africa can be found in the Zimbabwe/Zambia Border, the Volta project is in Ghana, the Cabora Bassa is in Mozambique, the Owen Falls is in Uganda and the Aswan project is in Egypt.

5 disadvantages of hydro electric power schemes

The following are disadvantages of hydro-electric power scheme

  • HEP schemes usually result in re-location of settlements since the reservoir covers a large area. Re-location of settlements disturbs the socioeconomic development of the people since they have to re-locate their homes, farmland and other related economic facilities. Re-location is also expensive in that governments usually pay compensation to people who are forced to move their settlements.
  • The Construction of HEP stations is very expensive; as a result, some countries cannot afford them even when they have good sites for the location of the schemes.
  • Lakes that are created become breeding areas for mosquitoes or water borne diseases such as malaria and bilharzia. 
  • Very large HEP schemes may occasionally flood whole villages and force people to leave their homes. That is, if there is a lot of rainfall in a particular year, flooding might occur resulting in high volumes of water in the reservoir. Hence nearby settlements could get affected. 
  • Variations in rainfall affect the amount of electricity that can be produced. That is, if there is an exceptionally low rainfall in a particular year, the amount of electricity produced in that year might be very low. This can slow down the development of the industry in a country.

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