Hydropower plants are sustainable forms of energy that produce electricity from flowing water. The amount of energy is determined by the head and flow of the water. The head of the water is the change in elevation of the water and flow is the volume of the water. The moving water is used to turn a turbine or waterwheel which spins a shaft to power an alternator or generator to produce electricity. This is why hyrdoplants are a great resource for power and a great alternative to fossil fuel burning, as long as theres water available to produce power. This diagram an short explaination shows how the whole sytem works.
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