Hydroelectric operation is more limited by incoming water and the installed capacity of power plants is limited.
During the dry season, the power plant can use excess units and limited water to shave peaks, and the peak shaving performance of hydropower units is very good, can reduce the efficiency loss of thermal power peak regulation, and achieve the highest overall efficiency of the power system.< /p>
During the rainy season, the power plant has a lot of water. In order to avoid the loss of abandoned water, it is necessary to try to utilize the power generation capacity as much as possible. Using incoming water, there is no peak capacity available at present, and thermal energy or pumped hydro energy storage is required. necessary for the peak. In this way, even if the peak efficiency of theIf thermal energy is lost, the overall efficiency of the power system can always be improved by using cheap hydroelectric power.