In hydropower generation, reservoirs leverage the stored water's potential energy to produce electricity. They store large quantities of water at an elevated position, which creates potential energy. When electricity demand is high, water from the reservoir is released and flows through turbines at a lower elevation, converting the gravitational potential energy into electrical energy. The mechanical energy of the flowing water turns the turbines, which, in turn, generate electricity.
By controlling the flow and release of water, hydropower plants can respond quickly to fluctuations in demand, making them a reliable and flexible source of renewable energy. The stored water in the reservoir can be used to generate electricity on-demand, contributing to a stable and sustainable energy supply.