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Kelsey -hydroelectric

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Kelsey -hydroelectric

  1. 1. By: Kelsey Walker
  2. 2. Table of Contents1. What is Hydroelectric energy?2. Advantages3. Disadvantages4. My Vision of the future in the US5. My vision of the future around the world6. Pictures7. Video
  3. 3. What is Hydroelectric energy?Hydroelectric energy is the use of flowing waterto create electricity.The most common type of hydroelectric plantuses a dam on a river to store water in a reservoir.
  4. 4. AdvantagesControls flooding & provides recreational activities .Simple design makes for inexpensive repairs andmaintenance costs.Renewable energy source, because the water is notdestroyed by passing through the dam.If needed, dams can be shut down instantly, where thermalplants take hours, and nuclear plants can take days!Very few breakdowns.
  5. 5. DisadvantagesDisrupts natural seasonal changes in the river, andecosystems can be destroyed.Ends flooding that help to clean out the silt in rivers,causing them to clog .Studies show that the plant decay caused downstreamof major dams produces as many greenhouse gasses asmore conventional methods of producing electricity.Dams are expensive to build, and due to drought maybecome useless, or produce much less power thanoriginally planned.Dams can break in a massive flash flood.
  6. 6. My Vision of the future in the US I believe that Hydroelectric Energy will become the main source of energy . 1) It’s renewable 2) Inexpensive 3) 2,000 hydroelectric power plants
  7. 7. My vision of the future around the world Hydroelectric energy use will decrease greatly around the world. In 2008 the demand for hydroelectric power dropped for the fist time in 30 years. In 2009 it continued drop in Europe ,China, etc.
  8. 8. Pictures