Core Viewpoint - The completion of the last segment of the China-Laos 500 kV interconnection project (domestic section) marks the successful full-line connectivity of the project, which is a significant initiative under the Belt and Road Initiative and aims to enhance cooperation between China and Laos [2] Group 1: Project Overview - The China-Laos 500 kV interconnection project is a major initiative included in the China-Laos community of shared future action plan, with a planned completion date in 2026 [2] - Once fully operational, the project will have a dual-direction power exchange capacity of 1.5 million kilowatts and will deliver approximately 3 billion kilowatt-hours of clean electricity annually [2] Group 2: Construction Details - The domestic section of the project, constructed by the Southern Power Grid Company, commenced on June 30, 2025, and spans a total length of 145 kilometers, featuring 255 newly built towers [2] - During construction, the project team implemented re-greening efforts at tower base locations to promote ecological sustainability [4] Group 3: Environmental Considerations - To build an eco-friendly project, the construction team optimized the route design to avoid core forest areas and regions rich in biodiversity, reducing the proportion of the route passing through rainforests from 32% to 20% and the number of protected areas affected from 13 to 8 [5] Group 4: Innovative Construction Techniques - The project utilized a drone swarm operation for transporting construction materials, addressing the challenge of transporting 42,000 tons of materials through rainforests [7] - An innovative "drone + helicopter" collaborative transport model was adopted, which minimized ground disturbance and achieved breakthroughs in transporting large tower materials weighing between 200 to 600 kilograms using a "four-drone lift" method [7] - The project implemented various technical and management innovations, resulting in the reduction of 15 cableway installations, temporary land occupation by over 80,000 square meters, and the preservation of over 30,000 trees, with construction disturbances in protected areas reduced by over 90% [7]
中老500千伏联网工程（国内段）顺利贯通