一问到底丨26兆瓦级海上风电机组完成安装 “大风车”有何大本领？

Core Viewpoint - The successful installation of the world's largest 26 MW offshore wind turbine in Dongying, Shandong, marks a significant technological breakthrough in China's offshore wind power industry, showcasing advancements in capacity, design, and resilience against harsh marine conditions [1][5][12]. Group 1: Technological Advancements - The 26 MW wind turbine features a hub height equivalent to over 50 stories and a rotor diameter that allows for a sweeping area of 77,000 square meters, making it the largest in terms of single-unit capacity and rotor size globally [5][12]. - The turbine's design incorporates over 30,000 components, all of which are domestically produced, ensuring full control over the supply chain and technology [11][12]. - The new technology allows the turbine to generate approximately 100 million kWh annually, sufficient to meet the electricity needs of 55,000 households [7]. Group 2: Installation Challenges - The installation faced significant challenges, including high-altitude precision work and site constraints, requiring innovative solutions such as pile foundation reinforcement and the use of a 4,000-ton crawler crane for lifting [3][4]. - The installation process involved precise alignment of over 200 connection bolts at heights nearing 200 meters, demonstrating advanced engineering capabilities [3][4]. Group 3: Resilience and Durability - The turbine is designed to withstand severe marine conditions, including strong typhoons and salt corrosion, with a dual anti-typhoon technology strategy capable of resisting typhoons up to level 17 [9][11]. - The fully sealed structure enhances its durability, ensuring a lifespan of 25 years in challenging offshore environments [9][11]. Group 4: Industry Development - China's offshore wind power industry is rapidly evolving, with a shift from nearshore to deep-sea development, supported by a comprehensive supply chain across provinces like Jiangsu, Shandong, Zhejiang, and Guangdong [12][14]. - As of mid-2023, China's cumulative installed offshore wind capacity reached 44.2 million kW, accounting for over half of the global total, with projections indicating an increase to 150 million kW by 2030 [14].