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万亿级水电站背后的中国科技密码:五级梯级开发如何改写世界水电史
Sou Hu Cai Jing· 2025-07-20 10:48
Core Insights - The Yarlung Tsangpo River hydropower project, with an investment of 1.2 trillion yuan, is set to redefine global hydropower history by utilizing a five-level cascade system to harness a vertical drop of 2400 meters, achieving an annual power output 1.6 times that of the Three Gorges Dam [1][3] Group 1: Technical Achievements - The project has established two world records: the largest vertical drop for a cascade hydropower station group and the first single hydropower system to exceed 200 billion kilowatt-hours in annual output [3] - New nano-concrete technology has been developed to withstand extreme cold, enhancing freeze resistance to 800 cycles compared to traditional concrete's 50 cycles [3] - An intelligent temperature control system embedded in the dam utilizes geothermal resources to maintain a safe temperature range, reducing crack occurrence by 92% in extreme cold conditions [3] Group 2: Infrastructure and Efficiency - The project includes the world's first ±1100 kV ultra-high voltage direct current transmission system, which improves transmission efficiency by 40% compared to the 2014 Qinghai-Tibet power grid project, equivalent to a reduction of 1.8 million tons of coal consumption annually [5] - A network of 437 sensors has been installed for real-time monitoring of geological and hydrological changes, achieving a landslide warning accuracy rate of 92% [5] Group 3: Economic and Environmental Impact - The hydropower project is expected to create 48,000 jobs and boost Tibet's GDP growth by 2.3 percentage points annually [7] - The clean energy produced can replace 6.8 million tons of standard coal each year, equivalent to planting 370,000 hectares of trees [7] - The associated transportation network is projected to enhance Linzhi's tourism industry, with cold chain logistics expected to grow by 300% by 2025 [7]