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Hydroelectricity

Hydroelectricity. By: Aarya Mehta, Alexandra Llaguno, & Melinda Prasad. Hydroelectricity. Definition: Hydroelectricity is electricity powered by water. - comes from hydropower. - Hydropower = renewable resource - Hydropower is dependent on precipitation and elevation levels.

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Hydroelectricity

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  1. Hydroelectricity By: Aarya Mehta, Alexandra Llaguno, & Melinda Prasad

  2. Hydroelectricity Definition: Hydroelectricity is electricity powered by water. • - comes from hydropower. • - Hydropower = renewable resource • - Hydropower is dependent on precipitation and elevation levels. • * High precipitation and elevation levels are the most sufficient.

  3. How does it work? • The movement of water as it flows downstream creates kinetic energy that can be converted into electricity. A hydroelectric power plant converts this energy into electricity by forcing water, often held at a dam, through a hydraulic turbine that is connected to a generator. The water exits the turbine and is returned to a stream or river bed below the dam.

  4. Environmental Impacts • Air Emissions • Water Resource Use • Water Discharges • Solid Waste Generation • Land Resource Use

  5. Examples of how hydroelectricity is used • Increases stability and reliability of electricity systems • Contributes to the storage of drinking water • Helps fight climate change • Generates electricity

  6. Advantages of Hydroelectricity • Hydroelectricity is an infinite fuel source • Efficient source • Hydroelectric power plants can be use throughout the world

  7. Disadvantages of Hydroelectricity • Hydroelectricity dams are costly to build • Requires certain weather to continue the operation • Hydroelectricity indirectly causes greenhouse emissions

  8. Historical Problems 1918-1958: 33 Major dam failures resulting in 1680 documented fatalities 1959-1965: 9 major dams failed throughout the world 1976: Teton Dam failure in Idaho Obstruction of the river for aquatic life

  9. Largest Dam in the World Three Gorges Dam: China

  10. Recent Problems • Hydroelectricity drastically affects terrestrial and marine organisms by: - the migratory barrier - creating changes in water temperature - diminishing and destroying habitat • Hydroelectricity increases greenhouse emissions.

  11. Solutions • Relocating terrestrial habitats to higher grounds will prevent it from getting flooded. • Use the dam to obtain maximum water for storage only during rainy season. • To prevent migratory problems, pick a season where marine life is not drastically affected (when there is no mating season for the majority of animals.) • Try filtering the water to prevent decaying remnants from emitting greenhouse gases.

  12. Works Cited • Hydroelectric power and water. Basic information about hydroelectricity, USGS Water Science for Schools.. (n.d.). USGS Georgia Water Science Center - Home page. Retrieved April 14, 2013, from http://ga.water.usgs.gov/edu/wuhy.html • 10 Reasons for promoting the hydroelectricity | ITAIPU BINACIONAL. (n.d.). ITAIPU BINACIONAL | A maiorgeradora de energialimpa e renovável do planeta. Retrieved April 14, 2013, from http://www.itaipu.gov.br/en/energy/10-reasons-promoting-hydroelectricity • HydroElectric Power: Risks and Rewards. (n.d.). The Electronic Universe. Retrieved April 14, 2013, from http://zebu.uoregon.edu/1998/ph162/l14.h • Electricity generated from hydro map. (n.d.). Electricity generated from hydro. Retrieved April 4, 2013, from http://geocurrents.info/wp-content/uploads/2012/07/Electricity-from-Hydro-Map.jpg • Renewable Map . (n.d.). Hydro-utility scale generation by state, 2011. Retrieved April 4, 2013, from www.eia.gov/todayinenergy/images/2012.05 • Three Gorges Dam. (n.d.). Largest Dam. Retrieved April 4, 2013, from www.eoearth.org/files/123901_124000/12 • ActewAGL education site : Energy : Renewable energy : Hydroelectricity : Advantages and disadvantages of hydroelectricity. (n.d.). ActewAGL education site. Retrieved April 4, 2013, from http://kids.actewagl.com.au/education/energ • Energy Report - Hydropower. (n.d.).Susan Combs - Texas Comptroller of Public Accounts. Retrieved April 4, 2013, from http://www.window.state.tx.us/specialrpt/ene

  13. Continued… • Problems with Hydroelectricity. (n.d.).Problems and Solutions. Retrieved April 4, 2013, from jisibhlphysics.wikispaces.com/Problems+wi • Hydroelectric Power. (n.d.). Dam. Retrieved April 4, 2013, from images.wisegeek.com/hydroelectric-power-dam.jpg • Nature. (n.d.). Nature. Retrieved April 4, 2013, from www.zoenature.org/wp-content/uploads/2011/04/polar-bears-putin-1.jpg • Bag of Money. (n.d.). Bag_Money. Retrieved April 4, 2013, from www.wpclipart.com/money/bag_of_money. • Niagara Falls. (n.d.). Hydroelectricity power. Retrieved April 4, 2013, from madowns.files.wordpress.com/2011/08/niagrafalls.jpg • Itaipu dam. (n.d.). Largest_US. Retrieved April 4, 2013, from www.industrytap.com/wp-/03/Itaipu-content/uploads/2013Brazil.jpg • hydropower. (n.d.). electricity. Retrieved April 4, 2013, from english.m3n4.com/wp-content/uploads/M3N4NEWSNET-10814-1.jpg • Hydroelectric Power: How it works, USGS Water-Science School. (n.d.). USGS Georgia Water Science Center - Home page. Retrieved April 4, 2013, from http://ga.water.usgs.gov/edu/hyhowworks.h • Hydroelectricity | Clean Energy | US EPA. (n.d.). US Environmental Protection Agency. Retrieved April 4, 2013, from http://www.epa.gov/cleanenergy/energy-and-you/affect/hydro.html • AIS Chemistry. (n.d.). Hydroelectric power. Retrieved April 4, 2013, from ais-chemistry.wikispaces.com/Hydroelectric

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