As of midnight on May 5, the ±800 kV Qishao High Voltage Direct Current (HVDC) transmission line, China’s first major clean energy transmission corridor, has delivered a total of 200.0025 billion kilowatt-hours (kWh) of electricity. Of this, 40% comes from clean energy sources, which has helped save 8.84 million tons of standard coal and reduced carbon dioxide emissions by 56.04 million tons, sign
Source: Xinhua News
As of midnight on May 5, the ±800 kV Qishao High Voltage Direct Current (HVDC) transmission line, China’s first major clean energy transmission corridor, has delivered a total of 200.0025 billion kilowatt-hours (kWh) of electricity. Of this, 40% comes from clean energy sources, which has helped save 8.84 million tons of standard coal and reduced carbon dioxide emissions by 56.04 million tons, significantly boosting energy security and green development in Central China.
The Qishao HVDC project stretches 2,383 kilometers, connecting the Qilian converter station in Gansu to the Shaoshan converter station in Hunan, passing through five provinces: Gansu, Shaanxi, Chongqing, Hubei, and Hunan. Completed and operational since 2017, the project has delivered an average of over 25 billion kWh per year since 2018. In 2024, the project’s annual usage hours reached 4,355, an increase of 152 hours compared to the previous year. Since 2024, the share of electricity delivered from renewable energy has risen to 47%, with the highest single-day delivery of new energy topping 80 million kWh.
To address the challenges of operating the Qishao HVDC project under high load, the State Grid Gansu Electric Power Company has implemented a "wind, solar, and thermal power bundling" dispatch strategy. By leveraging large-scale thermal power plants as peak-regulating sources, the company has effectively converted the intermittent wind and solar energy from the Hexi Corridor into stable, dispatchable green electricity, continuously enhancing the project’s electricity delivery capacity.
Reproduced article do not represent the position of New Energy Era.