Core Insights - The operation of Chengdu Airport and Huai Prefecture 500 kV substations marks a significant step in the construction of the Chengdu 500 kV three-dimensional double-ring network, enhancing power supply for the upcoming winter peak and supporting the high-quality development of the Chengdu-Chongqing economic circle [1][2] Group 1 - The construction of the Chengdu 500 kV three-dimensional double-ring network consists of 15 substations, with the recent additions of the Airport and Huai Prefecture substations set to increase the power capacity by 4.8 million kVA, addressing the growing electricity demand in areas like the Eastern New District of Chengdu, Jianyang City, and Jintang County [2] - The project has seen strong collaboration between government and enterprises, with the Sichuan provincial government leading the establishment of a power grid task force and signing cooperation agreements with State Grid Sichuan Electric Power, supported by multiple local government departments [2] - The construction process involved advanced techniques and close cooperation with various sectors, including the use of heavy-duty drones for crossing construction, ensuring timely completion of the power transmission lines [4] Group 2 - The Huai Prefecture 500 kV substation will serve as a crucial channel for the Sichuan-Chongqing UHV power grid, facilitating the stable and efficient transmission of clean energy from the Ganzi and Aba regions to the Chengdu load center, contributing to energy structure optimization and green low-carbon development [4]

Core Insights - The State Grid Sichuan Electric Power Company announced the successful integration of two 500 kV substations, Chengdu Airport and Huai Prefecture, marking a significant advancement in the construction of the Chengdu 500 kV three-dimensional dual-ring network, which will support winter power supply and high-quality development in the Chengdu-Chongqing economic circle [1] Group 1 - The two substations add a total of 4.8 million kVA of substation capacity, effectively covering areas such as Chengdu East New Area, Jianyang City, and Jintang County, alleviating local electricity demand pressure [1] - The Chengdu 500 kV three-dimensional dual-ring network is planned to consist of 15 substations, with the construction of two additional substations set to begin in the second half of 2024 to enhance regional power supply capacity [1] - Innovative technologies such as mechanized sealing networks and visualized line laying were employed in the complex environment of the substations, including the use of heavy-duty drones for the first time in Sichuan for the construction of 10 500 kV transmission line crossings [1] Group 2 - The Huai Prefecture substation will serve as a crucial node for the integration of ultra-high voltage power into Chengdu, facilitating the stable transmission of clean energy from Ganzi and Aba prefectures to the Chengdu load center, thus aiding in the region's energy structure transformation and low-carbon development [2]