下一个五年，电网格局将迎大变化！

Core Viewpoint - The article discusses the challenges and developments in China's power grid during the "14th Five-Year Plan" and the upcoming "15th Five-Year Plan," emphasizing the need for innovation and adaptation to increasing renewable energy integration and technological advancements [3][7]. Group 1: Achievements During the "14th Five-Year Plan" - By 2024, the length of transmission lines at 220 kV and above reached 961,000 kilometers, a year-on-year increase of 3.5% [5]. - The capacity of transformer equipment reached 578 million kW, growing by 4.9% year-on-year [5]. - Investment in national grid engineering construction reached 608.3 billion yuan in 2024, marking a historical high with a year-on-year increase of 15.3% [5]. - Investment in the distribution network has exceeded that of the transmission network for 11 consecutive years since 2014 [5]. Group 2: Challenges in the "15th Five-Year Plan" - The integration of high proportions of renewable energy poses extreme demands on the grid's carrying capacity, necessitating the construction of longer and larger capacity transmission corridors [7]. - The safety risks during the transition of the power system are increasing, with international incidents highlighting vulnerabilities associated with high renewable energy integration [7]. - There is a growing expectation for improved power supply services due to advancements in electric vehicles, distributed energy, and precision manufacturing, requiring enhanced flexibility and quality of electricity supply [7]. Group 3: Future Development Strategies - The future development of the power grid should focus on unified planning, coordinated operation control, and innovative technology management to build a new type of grid platform [9]. - It is essential to enhance the capacity for multi-source open access and coordination in the distribution network while promoting the development of intelligent microgrids [9]. - The article emphasizes the need for breakthroughs in technologies for high-voltage direct current transmission, smart transmission, and digitalization to address challenges in complex environments and resource constraints [9][8].