China's technology for building pumped storage power stations is at the world's advanced level

Pumped storage power station is a hydropower station
that uses electric energy to pump water to the upper reservoir when the power load is low, and then release water to the lower reservoir to generate electricity during the peak period of the power load.
Pumped storage power stations can convert excess electrical energy during low grid load into high-value electric energy during peak hours of the power grid, and can also be used for frequency modulation, phase modulation, and stability of the power system's cycle and voltage
.
The construction of pumped storage power stations in China started late, but due to the late effect, the starting point is high, and the technology of building large-scale pumped storage power stations is now at the world's advanced level
.

A few days ago, the Shangyi 1 million kilowatt pumped storage power station project in Zhangjiakou, Hebei Province carried out the preliminary work
in an orderly manner.
It is understood that the Shangyi 1 million kilowatt pumped storage power station project is expected to install four 250,000 kilowatt hydroelectric generator sets, and the upper and lower reservoirs will effectively adjust the storage capacity of about 10 million cubic meters, with a total investment of 8 billion yuan
.
After the completion of the project, it will help alleviate the urgent demand for peak shaving power supply in Beijing-Tianjin-Tangtang Power Grid and reduce air pollutant emissions
.