Sate Grid Nanjing's 2026 summer peak projects put into operation

With the commissioning of the Fengbei 220-kilovolt transmission and substation project and the new 110 kV main substation supporting project at Nanjing Tech University's Jiangpu Campus, all nine 2026 summer peak infrastructure projects of Sate Grid Nanjing Power Supply Co (Sate Grid Nanjing)'s main network have been put into operation.

An aerial view of the newly built Fengbei 220kV substation. [Photo provided to chinadaily.com.cn]

The Fengbei 220 kV transmission and substation project includes a newly built 220 kV Fengbei substation with a capacity of 360-megavolt-ampere and two 220 kV transmission lines with a total length of 10.73 kilometers. Upon commissioning, it will alleviate the heavy-load pressure on the 220 kV Liuhe substation and optimize the grid structure of the Liuhe district.

The new 110 kV main substation supporting project at Nanjing Tech University's Jiangpu Campus redirects one power source of the 110 kV Yongtai substation from the heavily loaded 220 kV Shanjiang substation to the 110 kV Gaowang substation, with a newly constructed 5-km 110 kV cable line, transferring approximately 30 megawatts of load and relieving power supply pressure in the core area of Jiangbei.

A 220kV transmission tower for the Fengbei power project. [Photo provided to chinadaily.com.cn]

To ensure power supply for the 2026 summer peak season, State Grid Nanjing has focused on reinforcing the main grid framework and strengthening regional power sources in the first half of the year, achieving new progress in localized project construction. It has commissioned nine summer peak main-network infrastructure projects, including the 220 kV transmission project from Dongshanqiao 500 kV substation and the Gongtang–Huake 220 kV line project. These projects have cumulatively added 100.35 km of transmission lines and 423 MVA of substation capacity. Covering key development areas such as Jiangning district, Liuhe district, and Jiangbei New Area, these projects will strengthen the grid structure, optimize regional load transfer capabilities, and provide a foundation for safe and stable power supply during the summer peak period.