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Water wheel: Water wheels can be used at low heads (1–5 metres) and medium flows (0.3–1.5 m 3 /s) and are considered safe for aquatic life. Gravitation water vortex power plant: This type of hydro power plant use the power of a gravitation water vortex, which only exists at low head.
The Coteau Creek Hydroelectric Station has three 62 net MW vertical Francis turbine-generator units. The turbines were supplied by English Electric [2] [3] with generators made by the Canadian division of Westinghouse. Each turbine draws water from an intake and control structure on Gardiner Dam, through an underground steel penstock.
The runner of the small water turbine. A water turbine is a rotary machine that converts kinetic energy and potential energy of water into mechanical work. Water turbines were developed in the 19th century and were widely used for industrial power prior to electrical grids. Now, they are mostly used for electric power generation.
The 1,065 megawatts (1,428,000 hp) power plant is owned by Duke Energy and its last generator was commissioned in 1991. The power station generates electricity by shifting water between an upper and lower reservoir. The upper Bad Creek Reservoir was created by damming Bad Creek and West Bad Creek while Lake Jocassee serves as the lower reservoir.
When peak demand for electricity occurs the flow of water is reversed, flowing from the upper to the lower storage and driving the turbine generator to generate electricity. [2] The Splityard Creek Dam has sufficient capacity for 10 hours of continuous power generation. It takes about 14 hours of pumping to refill it.
Raccoon Mountain Pumped-Storage Plant is a pumped-storage hydroelectric underground power station in Marion County, just west of Chattanooga in the U.S. state of Tennessee. Owned and operated by the Tennessee Valley Authority (TVA), the plant can generate a maximum of 1,652 megawatts of electricity.