1 / 15

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.

cbillings
Télécharger la présentation

Hydroelectricity

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related