中国最大750千伏超高压环网工程投运

Core Viewpoint - The completion and operation of the Hetian-Minfu-Qiemu-Ruoqiang 750 kV power transmission and transformation project marks the establishment of China's largest 750 kV ultra-high voltage ring network, significantly enhancing the power supply and renewable energy transmission capabilities in Xinjiang [1] Investment and Construction Details - The project involved a dynamic investment of 4.736 billion RMB, including the construction of two new 750 kV substations in Minfu and Qiemu, and the expansion of two existing substations in Hetian and Ruoqiang [1] - A total of 900 kilometers of 750 kV lines were built, making it the largest ultra-high voltage transmission project constructed in a single phase during Xinjiang's 14th Five-Year Plan [1] Engineering Challenges and Achievements - The project is part of the Xinjiang Tarim Basin 750 kV power transmission and transformation project, which consists of nine 750 kV projects completed in phases over a 15-year period, with a total ring length of 4,197 kilometers [1] - The construction faced various challenges, including working in desert, Gobi, mountainous, and river environments [1] Impact on Power Supply and Renewable Energy - The operation of the project ends the long-chain power supply pattern in southern Xinjiang, creating a hub-type backbone network that connects the north to the south and the west to the east [1] - The maximum power supply capacity is increased from 800,000 kW to 1,000,000 kW, and the renewable energy absorption capacity is enhanced by an additional 8 million kW [1] - This project not only improves the internal power supply but also strengthens the external transmission channels, significantly boosting Xinjiang's capacity to export green energy and facilitating the conversion of energy advantages into economic benefits [1]