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Created with Fabric.js 1.4.5 Hydroelectric Energy Background What is hydroelectricity? Hydroelectric power is one of the oldest methods of producing power. Building up behind a high dam, water accumulates potential energy. This is transformed into mechanical energy when the water rushes down the sluice and strikes the rotary blades of turbine. The turbine's rotation spins electromagnets which generate current in stationary coils of wire. Finally the current is put through a transformer where the voltage is increased for long distance transmission over power lines. Why do we need this? >> Hydropower plays a major role in reducing greenhouse gas emissions.>> Relatively low operations and maintenance costs.>> The technology is reliable and proven over time.>> It's renewable. Leading countries Current Applications Innovations Belo Monte Dam, BrazilCapacity: 11,181 MWMarch, 2011 - 2015 Xiangjiaba Dam, ChinaCapacity: 6,400 MWNovember 26, 2006 - 2015 Grand Ethiopian Renaissance Dam, EthiopiaCapacity: 6,000 MW2011 - 2017 Ethical, Social and Economic Impact Conclusion Hydroelectric energy is made by moving water, there are different water mechanisms, from water mills used since the Industrial Revolution, and dams, or hydroelectric dams, which are the ones used in present day; and are mainly used for providing and storing water, generating hydroelectric energy and even to control floods. We found out that hydroelectric power is one of the best methods of energy-making in the world. It gives us the opportunity to obtain energy without making a very big impact in double click to change this header text! >> Its use has a great impact on the local environment and eco systems.>> The change in river flow can cause destructive flooding.>> Has high investment costs.>> Dams can collapse under the weight of water such as the Situ Gintung dam in Indonesia in 2009 which killed 99 people and destroyed 440 homes.>> Hydropower schemes have a long gestation period of around 5-10 years, making them impractical for private investors.>> Impact on fisheries.>> Displacement of people living in the reservoir area. (local culture, religious beliefs, inundating bural sites) We found out that hydroelectric power is one of the best methods of energy-making in the world. It gives us the opportunity to obtain energy without making a very big impact in nature, although it still affects, compared to the amount of energy free of carbon dioxide that we receive, it is a much positive impact. Many places around the world have some kind of dam or river so the creation of this type of construction can be very prosperous for the city and/or country,because depending on the size and amount of energy spent daily it will decrease contamination and it may also decrease energy costs.The biggest hydro plant located in the Columbia River at USA, provides more than 70% of the electricity made in Washington State. And alhough only 33% of the available hydroelectric potential has been developed, today hydroelecticity prevents the emission of GHG corresponding to the burning of 4.4 million barrerlsof petroleum per day worldwide.With an average lifetime of 50 to 100 years,hydroelectric developments are long-term investments that can benefit various generations. They can be easily upgraded to incorporatemore recent techonologies. Resources:*Kindersley, Dorling. "Hydropower." National Geographic n.d.: 5-7. Web. 22 Jan. 2015.*"Social and Environmental Impacts of Hydropower Projects." Water World Today. N.p., 29 Jan. 2011. E/The Environmental Magazine. * "Renewable Energy Essentials: Hydropower." International Energy Agency (n.d.): n. pag. 2010. Web. 22 Jan. 2015.*Perlman, Howard. "Advantages of Hydroelectric Power Production and Usage." Hydroelectric Power. Advantages, from USGS Water-Science School. N.p., 17 Mar. 2014. Web. 22 Jan. 2015. <>.
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