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| Process of Hydro Power Generation |
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Mechanical energy is obtained by directing or gathering moving water. The moving water’s flow or fall determines the amount of available energy provided by the water.
In either instance, the water flows through a pipe, or penstock, then pushes against and turns blades in a turbine to spin a generator to produce electricity. In a run-of-the-river system, the force of the current applies the required pressure, while in a storage system, water is accumulated in reservoirs created by dams, then released when the demand for electricity is high. The Erathna Small Hydropower Project uses directed water in a run-of-the-river system.
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