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HYDROPOWER. BY: MATTHEW LESZCZ, TOMMY BARRETT, AND KAELIN SULLIVAN . HYDROPOWER. Hydropower is electricity generated using the energy of moving water. Rain or melted snow, usually originating in hills and mountains, create streams and rivers that eventually run into the ocean.
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HYDROPOWER BY: MATTHEW LESZCZ, TOMMY BARRETT, AND KAELIN SULLIVAN
HYDROPOWER • Hydropower is electricity generated using the energy of moving water. • Rain or melted snow, usually originating in hills and mountains, create streams and rivers that eventually run into the ocean.
HAVING FUN WITH HYDROPOWER There are many things you can do with hydropower but to have the most fun, this is probably the best thing to do. When you take a ride on a hydropower jetpack like this one you can do tricks such as barrel rolls, flips, or dives. You can also stay upright at 30+ feet above the water on this amazing 100 horse power jet pack. Hydropowered Jet Pack
Finding Hydropower Hydropower is found at any water source including… • rivers • streams • ponds • lakes • oceans • and many more
Hydropower Uses • If you have access to flowing water on your property you can use the microhydropower system to generate your own electricity • Microhydropower system is usually generate up to 100 kilowatts of electricity • A 10-killowatt microhydropower system usually provides enough power for a large home, a small resort, or a hobby farm.
Advantages of Hydropower • Not much pollution • Water is provided free by nature • Hydropower plays a major role in reducing green house gases • Low operations and maintenance costs • The technology is reliable and proven over time • Its renewable- rain fall renews the water in the reservoir, so the fuel is almost always there
Disadvantages of Hydropower • Very high investment costs • Hydrology dependent (precipitation) • Sometimes it can cause flooding of land and wildlife habitat • Sometimes loss or change of fish habitat • Changes in reservoir and stream water quality • Displacement of local populations
Fun Facts About Hydropower • Hydropower is the most significant renewable energy source. • Hydropower is the only renewable energy source that is closely competitive with fossil fuels. • Hydropower generates about nine percent of total energy supply in the USA. • Hydropower is the least expensive renewable energy source in the USA. • Hydropower accounts for 70 % of produced electricity in northwestern United States.
Hoover Dam htdeconstructedtp://www.history.com/topics/hoover-dam/videos#hoover-dam- • The Hoover Dam… • Is 726.4 ft. high • Is 1,244 ft. across at the top • Is 660 ft. thick at the base • Is 45 ft. thick at the top • Weighs 6.6 million tons • Can store up 2 years ‘average’ flow from the Colorado River • Has a power generating capacity of 2.8 million kilowatts
China’s Great Dam • China has the world’s biggest dam • It will be a mile long • It will rise 575 ft. above the Yangtze River • People were forced to leave their homes to work on the dam • This dam may be built for flood control, crop irrigation, and the production of energy • Hydroelectric dam harnesses water to create energy.
Equipment Reservoir- a large body of water formed from walls in the dam holding it back Intake- the gates on the dam that open as gravity pulls water through the penstock Penstock- a pipeline that leads to the turbine. Water builds up pressure as it flows through this pipe. Turbine- the water strikes and turns large blades of a turbine which is attached to a generator. Generators- as the blades in the turbine turn , so do a series of magnets inside the generator. Giant magnets produce alternating current (AC) by moving electrons.
Equipment Cont. Transformer- The transformer inside the powerhouse takes the AC and converts it to a higher-voltage current. Power Lines- There are four wires in a power plant: the three phases of power being produced simultaneously plus a neutral or something in common to all three. Outflow- Used water is carried through pipelines, called tailraces, and re-enters the river downstream.
Hydropower of the Future • Energy from river water supplies about one-fifth of the world’s electricity—with 850 to 900 gigawatts of hydropower • More than sixty countries get over half of their electricity from hydropower • As the global climate changes it may change the amount of water in sources for hydroelectric power such as rivers and lakes • An Australian study predicted that the average surface water availability could drop by 34 percent by 2030 or it could rise by 11 percent http://www.brainpop.com/technology/energytechnology/dams/
Bibliography • http://web.riverdeep.net/current/2000/06/front.060700.chinadam.jhtml • http://kearth101.radio.com/2011/12/07/video-really-cool-hydro-jetpack-guy-flies-like • http://environment.nationalgeographic.com/environment/global-warming/hydropower-profile/ • http://ga.water.usgs.gov/edu/wuhy.html • http://science.howstuffworks.com/environmental/energy/hydropower-plant1.htm • http://spectrum.ieee.org/energy/renewables/future-of-hydropower