“十五五”，能源“超级快递”这样“闪送”“输绿”

Core Viewpoint - The article emphasizes the significant advancements and future prospects of China's power grid, particularly focusing on the development of ultra-high voltage (UHV) technology and its role in supporting the country's energy transition and high-quality economic development [1][3][4]. Group 1: Achievements during the 14th Five-Year Plan - The length of UHV direct current lines increased from 28,000 kilometers to over 40,000 kilometers, while UHV alternating current lines grew from 14,000 kilometers to over 20,000 kilometers [3][5]. - The cross-regional UHV direct current channels delivered a 70% increase in clean energy transmission compared to the end of the 13th Five-Year Plan [5][6]. - The UHV projects have transformed from a "backbone network" to a "main artery," enhancing the capacity for cross-province and cross-region power transmission to 370 million kilowatts, a 30% increase from the end of the 13th Five-Year Plan [5][6]. Group 2: Role of UHV in Renewable Energy Development - UHV projects have played a crucial role in facilitating the development of renewable energy, with the first integrated wind-solar-fire storage export channel and the first new energy base export channel successfully operational [6][7]. - By 2024, the cross-regional UHV direct current transmission of clean energy is expected to reach approximately 4,200 billion kilowatt-hours, accounting for nearly 60% of total transmission [6][7]. - Significant breakthroughs in core UHV equipment have been achieved, enhancing the self-sufficiency of the entire UHV industry chain [6][7]. Group 3: Technological Innovations and Digital Transformation - The integration of advanced technologies such as artificial intelligence, big data, and digital twins is enhancing the safety and reliability of the power grid [8][15]. - The white crane pond to Jiangsu project is the first to adopt hybrid cascade transmission technology, effectively addressing safety pressures in densely connected areas [9][10]. - The upcoming projects, including the southeastern Tibet to Guangdong-Hong Kong-Macao Greater Bay Area project, will set multiple world records in terms of capacity and altitude, showcasing China's leadership in flexible direct current technology [9][10]. Group 4: Future Outlook for the 15th Five-Year Plan - The 15th Five-Year Plan is expected to accelerate UHV construction, focusing on the development of new energy bases and enhancing the management of UHV projects to ensure timely commissioning [14][15]. - The transition to a new power system dominated by renewable energy will require the power grid to adapt and innovate continuously [14][15]. - The integration of supply services will evolve, positioning power companies as "energy managers" and "green partners," providing diverse energy efficiency and carbon management services [15][16].