攀西电网优化改造工程正式建成投运

Core Insights - The completion and commissioning of the Panzhixi power grid optimization project significantly enhance the transmission capacity to Sichuan's load center, improving grid flexibility and fault resistance [1][2][3] Group 1: Project Overview - The Panzhixi region is the largest clean energy base in Sichuan and a key area for the "West-to-East Power Transmission" strategy, with plans to exceed 50 million kilowatts of clean energy capacity by the end of 2025 [1] - The project involved the construction of a new 500 kV substation, 680 kilometers of 500 kV lines, and upgrades to 8 substations, resulting in a total of 10 outgoing 500 kV lines and an additional 2.5 million kilowatts of supply capacity [2][3] Group 2: Engineering Challenges - The project faced significant challenges, including crossing high-voltage lines and various infrastructures 70 times, with 94% of the route in mountainous areas and some sections experiencing severe weather conditions [2] - Innovative construction techniques were employed, achieving a 60% mechanization rate in mountainous areas and reducing the workforce by over 1,100, while improving operational efficiency by 40% [2] Group 3: Operational Management - A multi-level supervision mechanism was established by the State Grid Corporation to ensure orderly project progress, with a focus on precise management through a "five-stage construction method" [2] - The project included comprehensive safety measures, with 151 accident prevention plans and 19 drills conducted to ensure stable operation during the transformation [2]