Hydroelectricity+Historian

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**Return**   Hydropower is an energy source that makes it possible to produce electricity without using fossil fuels. Water has been used for power since more than 2,000 years ago, starting with the Greeks, which is where they get the name. Hydro is a Greek way of saying “water-forming”. For over a century electricity has been generated by falling water. Hydroelectric power stems from the process of using water's energy as it flows from higher to lower elevation, rotating hydraulic turbines to create electricity. 