Inner Mongolia's UHV Power Grid Surpasses 800 Billion kWh in Cumulative Outbound Electricity Transmission

As of October 31, 2025, the cumulative outbound electricity transmitted through Inner Mongolia Autonomous Region's eight ultra-high-voltage (UHV) power transmission corridors—known as the "five AC and three DC" routes—officially surpassed the 800-billion-kilowatt-hour (kWh) mark, reaching a total of 801.535 billion kWh.

As one of China's major national energy and strategic resource bases, Inner Mongolia's UHV development has remained closely aligned with the country's overall energy strategy. From the commissioning of the Xilingol League-Shandong 1000 kV UHV AC transmission project in August 2016 to the operation of the Zhangbei-Shengli 1000 kV UHV AC project in October 2024—the region's eighth UHV corridor—Inner Mongolia has leveraged its rich coal, wind, and solar resources to build a robust UHV backbone network connecting key eastern load centers, including Shandong, Tianjin, Shanxi, Jiangsu, and Hebei. Annual outbound power transmission has soared from 7.371 billion kWh in 2017 to 170.6 billion kWh in 2024, marking seven consecutive years of steady growth and establishing Inner Mongolia as a vital hub for cross-regional energy optimization.

The efficient operation of these UHV corridors is also accelerating Inner Mongolia's transition toward green and low-carbon energy. To date, the cumulative clean energy transmitted via UHV lines has exceeded 102 billion kWh, providing strong support for the clean energy transformation of regions such as Beijing, Tianjin, and Hebei. "The UHV power grid enables people across the country to share, in real time, the green electricity generated from the grasslands of Inner Mongolia," said Liu Bo, Deputy General Manager of Inner Mongolia Eastern Power Trading Center Co., Ltd. "Inner Mongolia is no longer a distant frontier on the map—it has become a close energy partner to provinces and regions nationwide."