Construction work has officially commenced on the lower and upper reservoir dams of the Zhejiang Songyang pumped storage power station in east China, a significant milestone in the project’s development.
The power station, located in Songyang County, Zhejiang Province, is designed to have a total installed capacity of 1.4 million kilowatts. It will consist of four reversible pump-turbine generator units, each capable of generating 350,000 kilowatts.
Once fully operational, the facility is projected to produce approximately 1.4 billion kilowatt-hours of electricity annually while consuming up to 1.9 billion kilowatt-hours for pumping. The energy produced will play a vital role in peak shaving, frequency modulation, and emergency power supply for the regional grid.
The project is slated to commission its first unit by the end of 2027, with full operational capacity expected shortly afterward. As part of Zhejiang’s transition toward renewable energy and grid modernization, the Songyang facility will contribute to the stability of the East China power grid while supporting energy storage and backup needs in the province.
Pumped storage power stations like Zhejiang Songyang are increasingly critical to managing the intermittency of renewable energy sources, such as solar and wind power. They provide an efficient way to store surplus energy and ensure a stable power supply during periods of high demand.
When completed, the Zhejiang Songyang Pumped Storage Power Station will join a growing network of pumped storage facilities across China.
