en.Wedoany.com Reported - Recently, several subsidiaries of China Energy Engineering Corporation's China Electric Power Engineering Consulting Group won the survey and design tasks for multiple sections of the Qinghai Hainan Clean Energy Base to Guangdong UHVDC Transmission Project (referred to as "Qing-Guang UHVDC"). As a major national energy project under the "15th Five-Year Plan," the Qing-Guang UHVDC is a cross-regional transmission channel connecting the Qinghai Clean Energy Base with the electricity load center of the Guangdong-Hong Kong-Macao Greater Bay Area. It is also one of the first UHVDC projects to cross the operational areas of the State Grid Corporation of China and the China Southern Power Grid.

The project has a transmission capacity of 8,000 MW and will involve the construction of one new converter station in Qinghai and one in Guangdong. The DC transmission line passes through nine provinces (autonomous regions and municipalities directly under the central government), including Gansu, Shaanxi, Sichuan, Chongqing, Guizhou, Hunan, Guangxi, and Guangdong, with a total length of approximately 2,511 kilometers. Once completed, it is expected to deliver 36 billion kWh of electricity to Guangdong annually, of which approximately 24.9 billion kWh will be from new energy sources, accounting for 69.2%. The construction of this inter-provincial transmission channel is a key measure to promote the outward transmission of electricity from large-scale wind and solar bases in the "Gobi, Desert, and Barren Land" regions.

Among the winning bidders, China Energy Engineering Corporation's Northwest Electric Power Design Institute is responsible for the feasibility study and survey design of the sending-end converter station in Hainan Prefecture, Qinghai, and has also won the bid for the State Grid section line design package 5, covering a line length of 171 kilometers with an altitude range of 500 to 3,500 meters. The Guangdong Electric Power Design Institute won the feasibility study and survey design for the receiving-end converter station, responsible for site selection and route planning studies for the ±800 kV converter station and DC grounding electrode. Enterprises such as the East China Electric Power Design Institute, Central Southern China Electric Power Design Institute, Southwest China Electric Power Design Institute, North China Electric Power Design Institute, Hunan Electric Power Design Institute, Guangxi Electric Power Design Institute, Shaanxi Electric Power Design Institute, and Gansu Electric Power Design Institute respectively won the survey and design tasks for line sections along the project route. The feasibility study work for the Qing-Guang UHVDC project was initiated in Beijing on June 12, 2026, marking the project's full entry into the substantive implementation phase.

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