四川电网投运8项迎峰度冬重点工程

Core Viewpoint - The successful operation of the Yanyuan 500 kV substation expansion project marks the completion of eight key projects in the Sichuan power grid for the 2025 winter peak, significantly enhancing the province's winter electricity supply reliability and supporting high-quality economic development [1]. Group 1: Project Developments - The Sichuan power grid is expected to reach a maximum electricity load of approximately 57 million kW during the winter peak, representing a year-on-year increase of 11.6% [1]. - Eight key projects have been constructed, including approximately 747 kilometers of new transmission lines and an additional substation capacity of 6.38 million kVA, which enhances the clean energy collection capacity by about 1.66 million kW and increases the overall power supply capacity by 2.27 million kW [1]. - Four 500 kV projects, including the Chengdu East 1000 kV UHV substation and the Yanyuan 500 kV substation expansion, have optimized the backbone grid structure and improved the capability for clean energy transmission [3]. Group 2: Regional Supply Reliability - Four 220 kV projects, such as the Bazhong Zengkou and Neijiang Yingxiang, have further improved the reliability of regional power supply, effectively meeting the winter electricity demands of different areas [3]. - The Yanyuan 500 kV substation expansion has added 2 million kVA of substation capacity, addressing the needs for wind and solar power development and surplus electricity transmission in the Liangshan Yi Autonomous Prefecture [3]. Group 3: Operational Preparedness - Sichuan has strengthened government-enterprise collaboration and dynamically assessed supply and demand situations based on weather forecasts to enhance power supply capabilities [3]. - During the winter peak, 57 generating units from projects like Shuangjiangkou and Jinchuan hydropower, as well as Pengzhou and Deyang gas-fired power plants, will be put into operation, adding approximately 16.32 million kW of capacity [3]. - The company has deployed three types of ice removal robots on important transmission lines to ensure safety and operational efficiency during adverse weather conditions [5].