On the Gobi Desert in the Hexi Corridor, the steel structure of a new ultra-high voltage converter station is being lifted. The intensive implementation of the 15th Five Year Plan ultra-high voltage network is transforming the massive green power resources in the western region into stable energy support for industrial upgrading in the eastern and central regions.

Doubling and expanding the capacity of cross regional green power transmission

After all the newly built ultra-high voltage direct current channels in the 15th and 15th cycles are put into operation, the total scale of West East power transmission will exceed 420 million kilowatts, and the cross regional flexible mutual aid capacity will be more than doubled compared to the end of the 14th Five Year Plan. The green electricity from the western wind and hydropower base will be directly sent to load centers such as the Yangtze River Delta and the Pearl River Delta through direct channels, significantly reducing the carbon emission intensity of industrial production in the eastern region.

Since 2026, the bidding volume of ultra-high voltage equipment has increased significantly year-on-year. The cumulative winning amount of the first three batches of equipment has exceeded 29 billion yuan, exceeding the total bidding amount for the whole year of 2025. The order schedule of top power equipment enterprises has been extended to 2028, and the overall industry chain has entered a performance release cycle.

Regional power grid resilience continues to upgrade

The Wenzhou 1000 kV High Voltage AC Station, as the first 10 million volt substation to be built in Wenzhou, Zhejiang, will fill the last gap in the ultra-high voltage network in southern Zhejiang after completion, greatly alleviating the power supply pressure during peak periods of electricity consumption along the coast of southern Zhejiang. The projects of Datong, Huailai, Jinnan, Mengxi, Beijing Tianjin Hebei and other areas are advancing simultaneously, and the coverage of the ultra-high voltage AC ring network in the North China region is further expanding.

After the completion of the Panxi Ultra High Voltage AC Project, it will greatly enhance the nearby allocation capacity of Sichuan hydropower transmission, reduce water abandonment during flood season, and further improve the utilization efficiency of clean hydropower in Southwest China. The synchronous upgrading of the regional backbone network in the east, west, north, and south of the country will lay a solid foundation for the subsequent large-scale integration and consumption of new energy into the grid. Keywords: ultra-high voltage network, national energy transformation

The ultra-high voltage iron tower in the distance extends along the horizon, forming an energy artery network that spans east and west and connects north and south, providing sustained hardcore support for the national energy transformation.Editor/Cheng Liting