Construction on the Gansu-Zhejiang ±800kV ultra-high voltage (UHV) direct current (DC) transmission project has entered a new phase, as the first concrete foundation for the Gansu section was successfully poured on March 13. This marks the full-scale rollout of construction in the province.
Source: CCTV News
Construction on the Gansu-Zhejiang ±800kV ultra-high voltage (UHV) direct current (DC) transmission project has entered a new phase, as the first concrete foundation for the Gansu section was successfully poured on March 13. This marks the full-scale rollout of construction in the province.
The project is a key initiative under China's 14th Five-Year Plan for power development. Spanning 2,370 kilometers, it will link Wuwei in Gansu to Shaoxing in Zhejiang, crossing six provincial-level regions: Gansu, Ningxia, Shaanxi, Henan, Anhui, and Zhejiang. Once completed, the line will have a transmission capacity of 8 gigawatts (GW) and an estimated investment of 35.3 billion yuan (approximately $4.9 billion).
The power supply for the project will come from 15.2 GW of installed generation capacity, including 4 GW from coal power and 11.2 GW from renewable sources.
Slated for operation in 2026, the transmission line is expected to deliver over 36 billion kilowatt-hours (kWh) of electricity annually from Gansu to Zhejiang, with more than 50% coming from renewable energy. This will enable the integration of over 21.2 billion kWh of clean energy into the grid each year, replace 6.4 million tons of coal consumption, and cut carbon emissions by 17 million tons annually.
The project is a strategic step toward optimizing China’s energy mix. It will help maximize Gansu’s energy resources, meet Zhejiang’s growing electricity demand, and enhance national energy security. Additionally, it supports China’s broader goals of energy transition, emissions reduction, and sustainable development.
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