Pumped storage power generation

Japanese: 揚水式発電 - ようすいしきはつでん

A method of using surplus electricity from other power plants late at night when demand is low to raise water from a low reservoir to a high reservoir, and then generating electricity using that water during droughts and heavy loads during the day. When raising water, a water wheel and generator used for generating electricity are often used as the pump and motor. Furthermore, with the development of thermal power plants, including nuclear power plants, the necessity of this method to operate thermal power plants, which are difficult to adjust output of, at high load rates has become more important, and in addition to being installed alongside multipurpose dams, dedicated dams are also being constructed. →Peak load→Related topic: Hydroelectric power generation

Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:

電力需要の少ない深夜に他の発電所の余剰電力を利用して，水を低所の貯水池から高所の貯水池にあげ，渇水時や昼間の重負荷時にその水によって発電する方式。揚水の際は発電用の水車と発電機を，ポンプと電動機として使用するものが多い。さらに原子力発電を含む火主水従方式の発達につれ，出力調節が困難な火力設備を高負荷率で運転するためその必要性が重視され，多目的ダムに併設されるほか専用のダムも建設されている。→尖頭負荷
→関連項目水力発電

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