One year after it was put into operation, the Gansu-to-Shandong ±800 kV ultra-high voltage direct current transmission project has delivered 28.8 billion kilowatt-hours of electricity as of Friday.

The line is China's first large-scale power transmission project integrating wind, solar, and thermal storage. About 40 percent of the transmitted electricity came from renewable energy sources, enough to meet the annual power demand of around 8 million three-person households.

The 915-kilometer transmission line starts from Qingyang, Gansu province, and ends in Dongping, Shandong province, passing through Shaanxi, Shanxi, and Hebei provinces along the way. The line has become an important part of China's West-to-East power transmission network, a key project under China's 14th Five-Year Plan (2021-25) and the national strategy for the ecological protection and high-quality development of the Yellow River Basin.

Since the beginning of 2026, electricity transmitted through the project has exceeded 10 billion kilowatt-hours. In addition to fulfilling the planned green power delivery to Shandong, the transmission corridor has also supplied electricity to Beijing, Shanghai, Tianjin, Jiangsu, and Zhejiang, further expanding consumption channels for Gansu's renewable energy and supporting the country's green and low-carbon transition.

Ding Yixiao contributed to the story.