A 1,000-kilovolt ultra-high voltage (UHV) alternating current (AC) project was officially put into operation on Thursday, connecting clean energy resources in the north of China with economically dynamic regions such as the Beijing-Tianjin-Hebei region.

An aerial drone photo taken on Oct. 31, 2024 shows Shengli substation of the Zhangbei-Shengli 1,000-kilovolt ultra-high voltage (UHV) alternating current (AC) project in Xilinhot of Xilin Gol League in north China's Inner Mongolia Autonomous Region. A 1,000-kilovolt ultra-high voltage (UHV) alternating current (AC) project was officially put into operation on Thursday, connecting clean energy resources in the north of China with economically dynamic regions such as the Beijing-Tianjin-Hebei region.(Photo by Wang Zheng/Xinhua)

The Zhangbei-Shengli 1,000-kilovolt UHV AC project is expected to transmit over 70 billion kilowatt-hours of electricity -- an amount sufficient to power 19 million households for a year -- annually from Xilin Gol League in north China's Inner Mongolia Autonomous Region and Zhangjiakou in Hebei Province to the Beijing-Tianjin-Hebei region, Shandong and Jiangsu provinces, and other regions.

The project applies the UHV technology for the first time to connect a clean energy base in the north of Hebei with wind farms in Xilin Gol League, increasing the proportion of new energy in UHV transmission channels and boosting the consumption of green electricity on the receiving end of the grid, thereby promoting the transition to clean and low-carbon energy.

It also addresses the rising demand for electricity in the receiving regions more effectively.

China is at the technological forefront in new energy power generation, UHV power transmission, flexible direct current transmission and digitization of electricity systems, according to a report issued earlier this year by the Global Energy Interconnection Development and Cooperation Organization, a non-profit international organization headquartered in Beijing.