2024年，全国电网工程建设投资完成6083亿元

Core Insights - The report highlights that in 2024, the national grid construction investment in China is expected to reach a historical high of 608.3 billion yuan, representing a year-on-year increase of 15.3% [1] - The development of the power grid in China is projected to maintain a steady growth trend, with significant expansions in transmission lines and substation capacities [1][2] Investment and Infrastructure - By the end of 2024, the total length of transmission lines at 220 kV and above is expected to reach 961,000 kilometers, with AC lines at 909,000 kilometers (up 5.0% year-on-year) and DC lines at 52,000 kilometers (unchanged from 2023) [1] - The total capacity of substations (including converter stations) at 220 kV and above is projected to be 57.8 billion kVA, with AC substation capacity at 52.6 billion kVA (up 6.5% year-on-year) and DC capacity at 5.2 billion kVA (unchanged from 2023) [1] Regional Developments - In 2024, regions such as Xinjiang, Guangdong, and Zhejiang are expected to add over 2,000 kilometers of new 220 kV and above transmission lines, while Qinghai, Jilin, and Hainan are leading in growth rates, each exceeding 100% [2] - For substation capacity, regions like Inner Mongolia West, Jiangsu, Sichuan, Qinghai, and Guangdong are anticipated to add over 15 million kVA of new capacity, with Tibet, Inner Mongolia East, Qinghai, and Guangxi showing growth rates exceeding 200% [2] Challenges and Opportunities - The report identifies six major challenges for the power grid development during the 14th Five-Year Plan, including the need for enhanced flexibility in the grid to accommodate high proportions of renewable energy, the tightening of transmission resources due to large-scale renewable energy delivery, and the increasing threat of extreme weather events [3] - Other challenges include the transformation of distribution networks to handle distributed renewable energy and diverse new loads, the urgency for green transformation in grid construction, and the need for breakthroughs in technology and mechanisms to facilitate the integration of AI technologies into grid operations [3]