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Energy Resources

Hydroelectric
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How they work.

Hydroelectric energy is energy formed by moving water.  It has been around for along time.  It was used to ground wheat.  Now hydroelectric energy is used to create electricity.  Hydroelectric energy is first created by building a dam.  This dam blocks water flow, so only a certain amount will pass through.  The water that does get through powers turbines.  The moving water causes the rotor to rotate in the magnetic field to create electricity.  The water then exits the front of the dam. 

 
Pros of Hydroelectric Energy
 
  • Creates a large amount of electricity.
  • Renewable source of energy. 

Cons of Hydroelectric Enery

    • Blocks water flow of rivers. 
    • Alters the environment.
    • High cost of maintenance.

 

 

How a hydroelectric dam works.

hydroelectric_dam.gif