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Renewable Hydroelectricity

Renewable Hydroelectricity. By: Michael Brannon and Anthony Nguyen. Outline:. Advantages/Disadvantages How it works Where to find Hydro power Production time Energy Provided Efficiency Waste Produced Cost The Hoover Dam Conclusion. Advantages:. Creates no pollution

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Renewable Hydroelectricity

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  1. Renewable Hydroelectricity By: Michael Brannon and Anthony Nguyen

  2. Outline: • Advantages/Disadvantages • How it works • Where to find Hydro power • Production time • Energy Provided • Efficiency • Waste Produced • Cost • The Hoover Dam • Conclusion

  3. Advantages: • Creates no pollution • Once dam is built it lasts forever • Very reliable • Can generate constant electricity(unlike solar/wind) • Can also double as a dam to hold back and control water • Costs to build can be split because of electricity production and it will control water • Requires very little maintenance

  4. Disadvantages: • Finding a good site to build is difficult • Impacts nearby plants and trees • Also impacts fish and animals (fish ladders are put in place to help fish get back upstream) • Sometimes building a damn will cause water stoppage up stream and flood nearby

  5. How it works… • Dam traps water • Water is released and flows through tunnels that power turbines • Turbines drive generators • Energy is then put through power lines, and distributed to us • Produces a lot of energy quickly and cheaply. (Amount of energy depends on size of turbine/plant.)

  6. How Hydroelectricity Works:

  7. Where to find • Can be found in rivers, streams and lakes, any source of constant flowing water

  8. Production Time • Instantly produces energy, as soon as turbines spin Turbine

  9. Energy Provided • Provides 7.1% of the USA’s electricity • Provides 20% of the worlds electricity

  10. Efficiency • Hydroelectric plants on average are 81% efficient

  11. Waste Produced • Produces no waste and no pollution • Although it does impact fish and animals habitat

  12. Cost • It cost $165,000,000 to build the Hoover Dam • Hydroelectric costs about .50 cents per kilowatt. (Less than standard power.) • The larger the hydroelectric plant, the cheaper the cost to you • Hydroelectric plants are cheaper to build than nuclear power plants, but it is hard to find a location to build one, so they are less common

  13. The Hoover Dam: • The Hoover Dam is the worlds largest dam. • Built in 1936 • 38TH largest hydroelectricity plant in the world • Has 17 generators, each makes 133 megawatts, for a total of 2,074 megawatts(230,000 volts) • L.A. gets 15.4229% of the electricity generated at the Hoover Dam • Overall CA gets 28.5393% of the electricity generated at the Hoover Dam

  14. Parts of a Hydroelectric Plant: Transmission Lines Power Goes to You. Step up Transformers Spillway Transformer Generator Penstock Turbine Shaft Penstock Water Flow Turbine Turbine Blades Water Flow

  15. Conclusion: • Hydroelectricity creates no pollution and is very reliable • Sometimes it is hard to find a good site to build on. • Requires the constant flow of water • Is 81% efficient • Costs about .50 cents per kilowatt • The Hoover Dam is the worlds largest dam, provides 15.4229% of LA’s electricity

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