Hydroelectric power plants use hydropower to generate renewable electricity. The process converts the natural flow of water into kinetic energy, which a turbine then converts into mechanical energy and subsequently into electrical energy when the turbine is coupled to a generator. To harness water's kinetic energy, these plants are built next to dams that have been designed to create a powerful waterfall.   Advantages of hydroelectric power plants 1. Extremely low operating costs. Compared to ot...