大国工程看新疆丨这条特高压够绿！——走近我国第三条“疆电外送”直流大动脉

Core Viewpoint - The Hami to Chongqing ±800 kV UHVDC project is a significant infrastructure initiative aimed at transmitting clean energy from Xinjiang to central and western China, enhancing energy security and promoting green energy utilization [1][6]. Group 1: Project Overview - The Hami to Chongqing UHVDC project spans approximately 2,290 kilometers, connecting five provinces: Xinjiang, Gansu, Shaanxi, Sichuan, and Chongqing [1]. - The project is expected to deliver 36 billion kilowatt-hours of electricity annually, with over 18 billion kilowatt-hours sourced from wind and solar power, effectively replacing 6 million tons of coal and reducing carbon dioxide emissions by 16.5 million tons [2]. Group 2: Renewable Energy Contribution - The project boasts a record of over 70% renewable energy in its installed capacity, with 10.2 million kilowatts out of a total of 14.2 million kilowatts coming from wind, solar, and thermal sources [2]. - The natural time zone complementarity between Xinjiang and Chongqing allows for efficient energy supply during peak demand periods in Chongqing [2]. Group 3: Technological Innovations - The project employs advanced technologies such as the dual-arm support technology, enhancing wind resistance by 50% and doubling construction efficiency [3]. - The use of high-strength aluminum alloy components and a unique aerial transport system has significantly improved the project's logistics and construction timelines [3]. Group 4: Economic Impact - The Hami UHVDC project has an investment of 28.6 billion yuan, stimulating over 100 billion yuan in upstream and downstream investments and creating more than 40,000 jobs [5]. - The project has catalyzed the growth of a complete industrial chain in renewable energy equipment manufacturing, contributing to a 20 billion yuan increase in the value of the power transmission and transformation equipment manufacturing sector [5]. Group 5: Future Developments - Following the completion of the Hami to Chongqing project, plans are in place to accelerate the construction of additional UHVDC and AC transmission lines to further leverage Xinjiang's resource advantages [6].