AC System of Gansu–Zhejiang UHV Receiving-End Converter Station put into operation

chinadaily.com.cn | Updated: 2026-05-29

The 500-kilovolt AC system at Yuezhou Converter Station, the receiving-end station of the Gansu–Zhejiang ±800 kV UHV DC transmission project, was officially put into operation and connected to Zhejiang's 500 kV AC main grid on May 27, laying a foundation for subsequent DC system commissioning and full project completion.

The Gansu-Zhejiang UHV Project is China's first inter-regional UHV transmission project employing flexible DC technology at both the sending and receiving ends. The Yuezhou Converter Station, located in Shangyu district, Shaoxing, has a rated converter capacity of 8,000 megawatts. Clean electricity, generated in the desert and barren land in Northwest China, will be transmitted to Zhejiang, converted via the DC system, and then distributed through the AC system to areas including Ningbo and Shaoxing, enabling interconnection between the Gansu-Zhejiang UHV Project and Zhejiang's 500 kV EHV main grid.

Now that the AC system has been commissioned, Yuezhou Converter Station has begun operating live. Four 500 kV transmission lines were simultaneously commissioned, connecting to the 500 kV Chunhui Substation and the 500 kV Mingzhou Substation.

The Gansu–Zhejiang UHV DC transmission project is expected to become fully operational in April 2027. Upon completion, it will deliver over 36 billion kilowatt-hours of electricity annually to Zhejiang, with renewable energy accounting for more than 50 percent of the total. This will help Zhejiang establish a UHV backbone grid structure, increase the share of green energy consumption, and enhance the region's power supply capacity.

  • In a city where the ancient Silk Road still lingers in stone and wind, the Third World Conference of Sinologists unfolded not merely as an academic gathering, but as a lived encounter between civilizations.

    View all stories