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    In places such as Scandinavia, hydroelectric power provides the vast majority of renewable energy and generates most of the electricity. In developed countries, rivers that are... More »

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Hydroelectric Power Last Updated on 2010-12-16 00:00:00 In places such as Scandinavia, hydroelectric power provides the vast majority of renewable energy and generates most of the electricity. In developed countries, rivers that are suitable for generating hydroelectric power typically already have one or several dams or are located in conservation areas that prohibit dams, and so the majority of new hydroelectric projects are in developing countries. Hydroelectric power derives from transfers of kinetic energy when a volume of water flows down from a high elevation source, such as a reservoir, through a generator turbine and out to the streambed below.   Hydroelectric power. Water flows down a pipe called a penstock, through a water turbine, and, finally, downstream. The turbine drives an electrical generator. The energy extracted depends on water volume of the reservoir and the height... More »