In the Hydroelectric Generation System, the power is produced by generators, powered by turbines that transform the potential energy of fast flowing or falling water into mechanical energy. In the generation of hydroelectric energy, water is gathered or deposited at a higher level and directed downward through long pipes or tubes to a lower elevation. The dropping water allows turbines to spin at the end of its path down the pipes. The turbines, in turn, power generators, which transform the mechanical energy of the turbines into electricity. All in all, Hydroelectric Generation System helps in generating renewable energy.