实现多项世界级突破 我国在建海拔最高双曲拱坝电站叶巴滩首批机组投产

Core Viewpoint - The successful commissioning of the first batch of units at the Yebatang Hydropower Station marks a significant breakthrough in the construction of high-altitude arch dams and clean energy development in China [1][7]. Group 1: Project Overview - The Yebatang Hydropower Station, located on the upper reaches of the Jinsha River in the Tibet region, is the seventh hydropower station in a planned series of 13, with a total installed capacity of 2.24 million kilowatts and a reservoir capacity of 1.08 billion cubic meters [3]. - The design annual power generation capacity is 10.2 billion kilowatt-hours, which will save over 3 million tons of standard coal and reduce carbon dioxide emissions by more than 7 million tons annually once fully operational [3]. Group 2: Construction Challenges and Innovations - The construction of the Yebatang Hydropower Station faced multiple challenges, including complex geological structures, high geostress (up to 37.6 MPa), and natural disasters during the construction period [5]. - The project team overcame key technical challenges related to foundation construction, temperature control, and continuous winter construction in high-altitude conditions, achieving several industry breakthroughs [6]. Group 3: Technological Advancements - The Yebatang Hydropower Station features the highest arch dam in construction in China at 217 meters and is the first to achieve continuous pouring in cold regions [6]. - It includes the largest underground powerhouse depth of 480 meters and the longest tailrace tunnel of 3,172 meters among similar projects in China [6]. - The project has implemented a digital platform called "Yedian Cloud," utilizing IoT, BIM, and AI technologies for smart temperature control and digital management throughout the construction process [6]. Group 4: Economic and Environmental Impact - The electricity generated will be transmitted through the "Jinshang-Hubei" ±800 kV UHVDC project to central China, enhancing regional power supply security and contributing to high-quality economic development [7]. - The completion of the Yebatang Hydropower Station is a key measure in promoting energy green transition and achieving carbon neutrality goals, contributing significantly to national energy security [7].