Hydroelectric Energy

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Hydroelectric Energy

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How it Works

• The water is held behind a dam, forming an
  artificial lake, or reservoir. The force of the
  water being released from the reservoir through
  the dam spins the blades of a giant turbine. The
  turbine is connected to the generator that makes
  electricity as it spins. After passing through
  the turbine, the water flows back into the river
  on the other side of the dam.
• Hydroelectric power, or hydroelectricity, is
  generated by the force of falling water.

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How it Works
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Ice Harbor Dam

• On May 9, 1962, Vice President Lyndon Johnson
  (1908-1973) dedicates Ice Harbor Dam on the Snake
  River. Planning and construction took 15 years
  due to lack of funding and to concerns about
  potential harm to migrating fish. Proponents of
  the dam countered environmental concerns with
  arguments that the electricity generated would
  support the Hanford nuclear weapons facility, and
  that the retained water would irrigate crops.

Ice Harbor Dam
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Raccoon Mountain pumped storage plant

• Steep Raccoon Mountain, located along the eastern
  fringe of the rocky Cumberland Plateau, has
  always been a remote place, sparsely settled and
  hard to get to even though its only six miles
  west of Chattanooga, Tennessee, as the crow
  flies. Downstream from the city, even the mighty
  Tennessee River takes a sharp hairpin turn
  northward to avoid this big bulk of limestone and
  pine.
• Unchanging as the mountain looks, its not the
  same as it was 30 years ago. On top of it is
  something that didnt exist when Cherokee hunters
  stalked bear and wildcat there in times past a
  man-made lake holding about 60 million cubic
  yards of water.

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Raccoon Mountain
Raccoon Mountain is a pumped storage plant and
not a dam.
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Advantages of using Hydroelectric Energy

• Abundant, clean, and safe
• Easily stored in reservoirs
• Offers recreational benefits like boating,
  fishing, etc 

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Disadvantages of using Hydroelectric Energy

• Can have a significant environmental impact
• People can lose their homes
• Can be used only where there is a water supply 

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HYDROELECTRIC ENERGY!

Choose Hydroelectric Energy!
Offers recreational Benefits like boating And
fishing
Its Abundant ,Clean, And Safe!
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Sources (URL)

• http//www.sei.ie/Schools/Secondary_Schools/Subjec
  ts/Geography_JC/Pros_Cons1/
• http//www.eia.doe.gov/cneaf/solar.renewables/page
  /hydroelec/hydroelec.html
• http//www.sei.ie/Schools/Secondary_Schools/Subjec
  ts/Geography_JC/Pros_Cons1/
• http//www.historylink.org/index.cfm?DisplayPageo
  utput.cfmFile_Id7607
• http//www.tvakids.com/electricity/hydro.htm
• http//www.tva.gov/power/hydroart.htm
• http//www.tva.gov/heritage/mountaintop/index.htm
• http//www.personal.psu.edu/users/e/l/elr5005/hydr
  oelectricstinks_files/image001.jpg
• http//upload.wikimedia.org/wikipedia/commons/d/de
  /Stwlan.dam.jpg
• http//www.crem-ltd.com/images/clyde_hydro_800px.j
  pg
• http//www.mercycorps.org/photos/photo1213038673.j
  pg

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Made by Hannah Bryant