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±800千伏换流变压器
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疆电千里入巴渝
Ren Min Ri Bao· 2026-01-14 08:13
Core Insights - The Hami-Chongqing ±800 kV UHVDC project has commenced operation, enabling electricity transmission from Hami, Xinjiang to Chongqing, a distance of 2260 kilometers in approximately 0.007 seconds [1] Group 1: Energy Supply and Demand - During peak electricity demand in Chongqing, Hami's solar power generation continues, benefiting from the natural time complementarity between the two locations [2] - Chongqing's electricity demand has been growing at an annual rate of 6%, with a projected growth rate of 11% for 2024 [2] - The project includes 14.2 million kW of power sources, with over 10.2 million kW from wind, solar, and thermal energy, resulting in a renewable energy share exceeding 70% [2] Group 2: Technological Innovations - The project faced challenges such as harsh environmental conditions and complex construction corridors, which were addressed through innovative engineering solutions [3] - The Hami-Balikun converter station features 14 ±800 kV converter transformers, each with a capacity of approximately 400,000 kW, achieving over 90% localization of equipment [3] - New technologies improved construction efficiency and addressed challenges, such as optimizing tower designs for wind resistance and utilizing high-strength aluminum alloy materials [3] Group 3: Economic Impact - The project has stimulated over 100 billion yuan in upstream and downstream investments, creating more than 10,000 jobs directly related to construction and over 30,000 jobs in equipment manufacturing and energy services [4] - Hami has established a wind power equipment manufacturing base, with local supply chain integration exceeding 70%, significantly reducing supply chain cycles [4] - The Hami-Chongqing project is expected to enhance the development of the energy industry in the western region and support the high-quality development of the Chengdu-Chongqing economic circle [4]