Tibet-Guangdong UHVDC Project Breaks Ground: World's Leading Flexible DC Project Boosts National Energy Integration
2025-09-17
On September 16th, a globally leading energy project officially kicked off its construction - the Tibet-Guangdong UHVDC Project. This project is not only the flexible DC transmission project with the strongest power transmission capacity in the world currently, but also sets a new record in terms of technical level and investment scale, becoming a benchmark project in the energy field.
The energy supply of the Tibet-Guangdong UHVDC Project relies on the rich clean energy resources in Tibet, specifically centering on the "integrated hydro-solar-wind" clean energy bases in the river basins such as the Yuqu River, Chayuqu River, and Kelaolong River. In terms of project layout, four ±800 kV UHV converter stations will be built in the sending ends of Qamdo and Nyingchi in Tibet, and the receiving ends of Guangzhou and Shenzhen in Guangdong respectively. Among them, the two converter stations at the sending ends will concentrate and aggregate more than 20 million kilowatts of clean electricity, while the two converter stations at the receiving ends will distribute and transmit the electricity to the two major power load centers in Guangdong. This will provide a solid green and low-carbon energy support for the development goal of "building a new Guangdong", and at the same time promote the optimal layout of national energy resources to enter a new stage of "a nationwide integrated plan".
In terms of investment and economic driving effect, the total investment of the Tibet-Guangdong UHVDC Project itself is about 53.2 billion yuan. In addition, the investment scale of the supporting "integrated hydro-solar-wind" power base exceeds 150 billion yuan. Such a large-scale investment will effectively drive the growth of related industries such as upstream and downstream equipment manufacturing and engineering construction. During the peak period of the project construction, it is expected to directly create more than 100,000 jobs, which will play a strong role in promoting the economic and social development of Tibet.
Looking back at the promotion process of the project, the key nodes are clear: in May 2024, the preparation group for the cross-operating area DC transmission project joint venture companies (including Qinghai-Guizhou DC Joint Venture Company and Tibet-Guangdong DC Joint Venture Company) was officially unveiled; in September of the same year, State Grid and China Southern Power Grid signed the "Shareholder Investment Cooperation Agreement of Guangdong Tibet-Guangdong DC Power Operation Co., Ltd."; on January 9, 2025, the Tibet-Guangdong DC joint venture company - Guangdong Tibet-Guangdong DC Power Operation Co., Ltd. was officially established, with China Southern Power Grid holding 51% of the shares and State Grid holding 49%; on June 23, 2025, the project successfully obtained the approval from the National Development and Reform Commission, laying a solid foundation for the official construction.
According to the plan, the Tibet-Guangdong UHVDC Project is scheduled to be fully put into operation in 2029. After operation, it will transmit more than 43 billion kWh of electricity to the Guangdong-Hong Kong-Macao Greater Bay Area every year. This transmission volume is equivalent to half of the annual power generation of the Three Gorges Power Station, and all the electricity is 100% clean energy, which is of great significance for promoting the Greater Bay Area to achieve the "dual carbon" goals.
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