Group 1 - The Yarlung Tsangpo River downstream hydropower project has officially commenced construction with a total investment of approximately 1.2 trillion yuan, which is about one-ninth of the Three Gorges Project's static investment of 135.3 billion yuan [1] - The project is expected to have a total installed capacity of 60 GW and an annual power generation of 3,000 billion kWh, which is approximately three times that of the Three Gorges Dam [1] - The project will significantly boost domestic demand for construction machinery, with an estimated annual profit increment of 30-40 billion yuan for major machinery manufacturers [2] Group 2 - The average altitude of the project site is over 3,000 meters, leading to high maintenance costs for diesel machinery, which may drive the adoption of electric and unmanned construction machinery [2] - The annual new equipment market space is projected to be around 100-150 billion yuan, potentially increasing to 150-200 billion yuan when considering electrification and automation [2] - Major construction machinery manufacturers are expected to see a profit of approximately 170 billion yuan in 2024, with a profit elasticity exceeding 20% [2] Group 3 - Relevant companies in the construction machinery industry include Zoomlion Heavy Industry (01157), SANY International (00631), and China Longgong (03339) [3]