Recently, the Chongqing Jiangjin Pioneer 120MW/240MWh independent energy storage power station, constructed by Chongqing Engineering Company, was completed and connected to the grid, and officially put into operation successfully. The project covers a total area of ​​about 31 acres, with a total installed capacity of 120MW/240MWh. It is the first grid-side energy storage system station put into operation in Jiangjin District, and the largest single power station for grid-side energy storage built in Chongqing this year.

This project mainly includes a 220kV energy storage substation and transmission lines. The 220kV energy storage substation is located in the northwest of the energy storage power station, covering an area of ​​about 2,987 square meters. A 220kV main transformer with a capacity of 240MVA is built, and an outdoor GIS layout is adopted for cable outlet. A new single-circuit 220kV line is built for the transmission line, starting from the 220kV energy storage substation of this project and ending at the Jiangjin Longjing 220kV substation. The total length of the cable is about 0.5 kilometers, and a new cable trench of 0.5 kilometers is built.

It is reported that as a key construction project for Chongqing's peak summer power supply in 2024, the energy storage station can undertake peak-shaving, valley-filling, frequency regulation, phase regulation and emergency standby for the Jiangjin District power grid. Through unified regulation, it can provide 240,000 kWh of electricity at a time during peak load periods. In the peak load months of the power grid in winter and summer, it can meet two charges and two discharges per day, and can provide 480,000 kWh of peak-shaving electricity for the Jiangjin power grid every day, meeting the daily electricity needs of 100,000 residents.