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H ydropower. By: Kelsea and Troy. What is hydropower?. Hydropower is energy that comes from the force of moving water. The fall and movement of water is part of a continuous natural cycle called the water cycle .

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h ydropower


By: Kelsea and Troy.

what is hydropower
What is hydropower?
  • Hydropoweris energy that comesfrom the force of moving water. The fall and movement of water is part of a continuous natural cycle called the water cycle.
  • Hydropower is called a renewable energy resource because water on the earth is continuously replenished by precipitation. As long as the water cycle continues, we won’t run out of this energy source.
history of hydropower
History of hydropower.

Hydropower is one of the oldest sources of energy. It was used thousands of years ago to turn a paddle wheel for purposes such as grinding grain.  Our Nation's first industrial use of hydropower to generate electricity occurred in 1880, when 16 brush-arc lamps were powered using a water turbine at the Wolverine Chair Factory in Grand Rapids, Michigan.

how is it used today
How is it used today?
  • Dams are built on rivers where the terrain will produce an artificial lake or reservoir above the dam. Today there are about 80,000 dams in the United States, but only three percent have power-generating hydro plants. Most dams are built for flood control and irrigation, not electric power generation.
advantages and disadvantages
Advantages and disadvantages.
  • Hydropower is the cheapest way to generate electricity today. No other energy source, renewable or nonrenewable, can match it.
  • Damming rivers may permanently alter river systems and wildlife habitats. Fish, for one, may no longer be able to swim upstream.
economic impacts
Economic impacts.
  • Producing electricity from hydropower is cheap because, once a dam has been built and the equipment installed, the energy source—flowing water—is free. Hydropower plants also produce power cheaply due to their sturdy structures and simple equipment. Hydro plants are dependable and long-lived, and their maintenance costs are low compared to coal or nuclear plants.
in the future
In the future.
  • One requirement may increase hydropower’s costs in the future. The procedure for licensing and relicensing dams has become a lengthy and expensive process. Many environmental impact studies must be undertaken and as many as 13 state and federal agencies must be consulted. It takes anywhere from three to seven years to get a license to build a hydroelectric dam or a relicense to continue operations.
  • Hydropower is one of the cheapest renewable energy resources out there, because other than the initial building of the dam flowing water is free.
other interesting facts
Other interesting facts.
  • Hydropower facilities offer a range of additional benefits. Many dams are used to control flooding and regulate water supply, and reservoirs provide lakes for recreational purposes, such as boating and fishing.
sources citied
Sources citied.
  • http://www.need.org/needpdf/infobook_activities/SecInfo/HydroS.pdf
  • http://www.eia.doe.gov/kids/energy.cfm?page=hydropower_home-basics
  • http://www.alternative-energy-news.info/technology/hydro/