The Qinghai–Henan ±800 kV UHV DC Transmission Project, also known as the “Qingyu DC Project,” is a landmark initiative aligned with China’s national energy strategy and a major green energy project driving the transformation of energy production and consumption. The project starts in Hainan Tibetan Autonomous Prefecture, Qinghai Province, and terminates at the converter station in Zhumadian, Henan Province, with the station site located in Dazhu Village, Caigou Town, Shangcai County. Spanning 1,563 kilometers across Qinghai, Gansu, Shaanxi, and Henan, it is the world’s first UHV transmission corridor built specifically for the delivery of clean energy.

In this project, the company was primarily responsible for communications construction works in the Gansu section, including communications equipment installation at the Duohe, Lvyuan, and Shaijin substations, as well as power supply upgrades, dual-channel system upgrades, and optical cable installation.

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