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hydroelectric power: see power, electric power, electric, energy dissipated in an electrical or electronic circuit or device per unit of time. The electrical energy supplied by a current to an appliance enables it to do work or provide some other form of energy such as light or heat.
..... Click the link for more information. ; water power water power, mechanical energy derived from falling or flowing water, e.g., rivers, streams, and the overflow of dams. The wooden water wheel , long utilized for driving machinery in flour mills and factories, was largely supplanted by the steam engine in the early
..... Click the link for more information. .

hydroelectric power

A hydro station generates power by the controlled release of water from the reservoir of a dammed …

(credit: © Merriam-Webster Inc.)

Electricity produced from generators driven by water turbines that convert the energy in falling or fast-flowing water to mechanical energy. Water at a higher elevation flows downward through large pipes or tunnels (penstocks). The falling water rotates turbines, which drive the generators, which convert the turbines' mechanical energy into electricity. The advantages of hydroelectric power over such other sources as fossil fuels and nuclear fission are that it is continually renewable and produces no pollution. Norway, Sweden, Canada, and Switzerland rely heavily on hydroelectricity because they have industrialized areas close to mountainous regions with heavy rainfall. The U.S., Russia, China, India, and Brazil get a much smaller proportion of their electric power from hydroelectric generation. See also tidal power.

Award-winning environmental journalist Jeff Alexander presents The Muskegon: The Majesty and Tragedy of Michigan's Rarest River, part history, part environmental scrutiny, part wake-up call to the Muskegon River's vital role in both the environment and to local communities that have relied on it for fisheries, tourism, and hydroelectric power.

The Muskegon by Internet Bookwatch

Rowswell says Northern Ontario is already energy self-sufficient and has the potential to be a net exporter of power if 6,000 to 7,000 megawatts of untapped hydroelectric power were developed.

Regional energy pricing by Ross, Ian / Northern Ontario Business

aluminum company, said its Brazilian subsidiary, Alcoa Aluminio, raised its stake in the Estreito hydroelectric power company, in northern Brazil, to 25.

Alcoa by Latin Trade

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