An ultra-high voltage power line stretching from Hami in northwest China’s Xinjiang Uygur Autonomous Region to Zhengzhou in central China’s Henan Province has set a new record. As of March 16, the Hami-Zhengzhou ±800 kV UHVDC transmission line has transmitted over 10,000 gigawatt-hours (GWh) of electricity this year—a remarkable 11.2 percent increase compared to last year.
Launched in January 2014, this 2,192-kilometer-long transmission line is the first ultra-high voltage direct current (UHVDC) project designed to deliver electricity from Xinjiang to central China. Passing through six provinces and regions—Xinjiang, Gansu, Ningxia, Shaanxi, Shanxi, and Henan—the line plays a crucial role in connecting renewable energy resources to the heart of China’s power grid.
Hami, located at the foot of the Tianshan Mountains, is rich in wind and solar resources, making it a vital hub for renewable energy generation. By transmitting clean energy across vast distances, the project not only strengthens Henan’s electricity supply but also promotes economic development in Xinjiang.
The success of the Hami-Zhengzhou line highlights China’s commitment to sustainable energy and its ability to integrate renewable sources into its national grid. With increasing demand for clean power, this record-breaking transmission sets a promising precedent for future projects.
