新思想引领新征程·非凡“十四五”︱特高压输电网越织越密 筑牢能源安全基础

Core Viewpoint - The article emphasizes the importance of energy security and the rapid development of ultra-high voltage (UHV) power transmission projects in China, which are crucial for ensuring energy supply and supporting economic growth [2][3]. Group 1: Energy Infrastructure Development - During the "14th Five-Year Plan" period, China has accelerated the construction of UHV projects, with 19 new lines initiated, accounting for nearly half of the total planned projects [3]. - The total investment in UHV projects exceeded 380 billion yuan over five years, marking a significant advancement in UHV development [3]. - The UHV transmission capacity has enabled the delivery of over 8.8 trillion kilowatt-hours of electricity across provinces, significantly enhancing the energy supply network [3][5]. Group 2: Clean Energy Transition - China has planned nine major clean energy bases in resource-rich northern and western regions, facilitating the long-distance transmission of clean energy through UHV lines [4]. - By 2024, the amount of clean energy transmitted via UHV lines reached approximately 420 billion kilowatt-hours, a 70% increase compared to the end of the "13th Five-Year Plan" [4]. - The UHV projects have played a vital role in the green and low-carbon transformation of the energy sector, supporting the integration of wind, solar, and hydropower into the national grid [5]. Group 3: Technological Advancements - The UHV technology in China has achieved a 100% localization rate, with significant advancements in engineering capabilities, such as the development of robust transmission towers for harsh environments [4]. - Chinese companies now lead in setting over 80% of global UHV technical standards, marking a shift from following to leading in UHV technology [4]. - The construction of 44 UHV transmission lines has created a vast network exceeding 50,000 kilometers, enhancing the ability to allocate clean energy resources effectively [5].