The coordinated development of energy storage and renewable energy has helped accelerate China's green and low-carbon energy transformation

In terms of pumped storage, in Liaoning, as the first mega kilowatt-level EPC pilot project involving the design, construction and procurement of the complete industrial chain of pumped storage construction, Qingyuan pumped storage power station has a total installed capacity of 1.8 million kilowatts, and the first unit will be put into operation soon. In Xinjiang, as a key implementation project in the "Medium and Long-term Pumped Storage Development Plan (2021-2035)" and the first approved pumped storage power plant project in Xinjiang during the "14th Five-Year Plan" period, Xinjiang Burjin pumped storage power plant is under orderly construction. The plant has a total installed capacity of 1.4 million kilowatts and a designed annual generating capacity of 1.75 billion kilowatt-hours.

"Pumped storage power station is a power station that uses the height difference of water and gravitational potential energy for energy conversion, can quickly respond to changes in power demand, and can undertake tasks such as peak loading, valley filling, energy storage and phase regulation of regional power grid, further improve the power supply quality of the grid, and support the safe and stable operation of the grid." The relevant person in charge of Xinhua Power generation of China Nuclear Group said that the construction of Burjin pumped storage power station project will effectively support the large-scale development and high proportion of new energy such as wind and light in Altay region, and help the construction of the Burjin River basin water landscape storage integration project.

At the same time, since the beginning of this year, the scale of new energy storage installations has continued to grow rapidly, and a variety of technology projects such as lithium batteries, compressed air, and flow batteries have grown rapidly. For example, the largest electrochemical energy storage power station in China - Shach 1 million kilowatt light storage integrated power station has been fully put into commercial operation, and its energy storage scale has reached 200,000 kilowatts / 800,000 kilowatt-hours, which can effectively regulate the stable supply of regional new energy power.

The "New Energy Storage Industry Development Report (2023)" released recently shows that as of the end of September 2023, the cumulative installed capacity of new energy storage projects has reached 21.23 million kilowatts. New energy side and grid side energy storage is the focus of new energy storage construction, and the cumulative installed capacity accounts for about 92%.

"To promote the construction of a new energy system, it is necessary to expand the scale of renewable energy, improve the efficiency and reliability of renewable energy, and form an effective alternative to fossil energy." At the same time, we will strengthen the construction and transformation of new infrastructure such as large-scale energy storage, and enhance the capacity of regional interconnection of new energy systems." Said Sun Chuanwang, a professor at the China Center for Energy Economics Research at Xiamen University.