The Kiev Pumped-Storage Power Plant is a pumped-storage power station on the west bank of the Kiev Reservoir in Vyshhorod, Ukraine. The Kiev Reservoir serves as the lower reservoir and the upper reservoir is located 70 m (230 ft) above the lower. Water sent from the upper reservoir generates electricity with three 33.3 megawatts (44,700 hp) conventional hydroelectric generators and three 45 megawatts (60,000 hp) reversible pump-generators. During periods of low demand, such as night time, the pump-generators push water from the lower reservoir to the upper for use during peak hours. The first generator was commissioned in 1970, the last in 1972.