Hydro power plants allow us to harness the kinetic energy of water to create electric energy. They operate on the simple concept of water turning a turbine, which then rotates a generator, which produces 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.
The process of generating hydroelectric power is as follows:
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