From dianne@sandelman.ocunix.on.ca Wed May 22 11:40:08 1996
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Date: Wed, 22 May 96 11:37:56 -0400
From: Dianne Murray <dianne@sandelman.ocunix.on.ca>
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Subject: what.htm
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   [IMAGE]
     _________________________________________________________________
   
Hydropower Generation

    What is Hydroelectric Power?
    
   Water is needed to run a hydroelectric generating unit. Water is held
   in a reservoir or lake behind the dam. When water is released from the
   reservoir through the dam, the force of the water is used to spin the
   blades of a turbine. The turbine is connected to the generator that
   produces electricity. After passing through the turbine, the water
   reenters the river on the down stream side of the dam.
   
   [IMAGE] Hydroelectric Dam Diagram (50Kgif)
   
    What is a Pumped-Storage Plant?
    
   Pumped-storage utilizes two reservoirs, one located at a much higher
   elevation than the other. During periods of low demand for electricity
   such as nights and weekends, energy is stored by reversing the
   turbines and pumping water from the lower to the upper reservoir. The
   stored water can later be released to turn the turbines and generate
   electricity as it flows back into the lower reservoir.
   
   [IMAGE] Pumped-Storage Facility Diagram (36Kgif)
   
   Hydropower is America's leading renewable energy resource. Of all the
   renewable energy sources, hydropower is the most reliable, efficient,
   and economical.
     _________________________________________________________________
   
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