新疆环塔里木盆地七百五十千伏输变电工程全线贯通 五千多个日夜 建成“环沙海”电网

Core Points - The Xinjiang Tarim Basin 750 kV power transmission and transformation project has officially completed its construction phase, marking a significant milestone in China's largest 750 kV ultra-high voltage ring network project [1][2] - The project spans a total length of 4,197 kilometers and encompasses an area of 530,000 square kilometers, with the completed network expected to cover 1,060,000 square kilometers [2] - The project is anticipated to enhance the power transmission capacity in southern Xinjiang, facilitating the integration of renewable energy sources and supporting local economic development [6][7] Project Overview - The project consists of nine 750 kV substations and one switching station, with a total investment of 4.736 billion yuan [3] - It includes the construction of 900 kilometers of new 750 kV lines and 1,891 towers, with over half of the lines traversing desert areas, setting records for the longest power transmission routes in desert conditions [3][4] Construction Challenges - The construction faced significant challenges, including the need to build access roads through sand dunes and the difficulty of excavating tower foundations in shifting sands [4][5] - In mountainous regions, construction relied heavily on manual labor due to the lack of machinery, with workers digging deep pits for tower foundations [5] Economic Impact - The project is expected to reduce the curtailment of renewable energy, with an estimated increase in renewable energy acceptance capacity by 8 million kW, which will support the development of 50 million kW of renewable energy in southern Xinjiang [6] - It is projected to drive industrial investment exceeding 28.3 billion yuan and create over 8,000 jobs [6] Strategic Importance - The project will accelerate the formation of a robust power grid structure in Xinjiang, enhancing both internal supply and external transmission capabilities [7] - It is positioned to support the national energy supply strategy and facilitate the transition from energy advantages to economic advantages in the region [7]