“疆电入渝”工程今日投产送电 新疆为什么送出的是直流电？

Core Points - The "Jiang Dian Ru Yu" project, part of China's 14th Five-Year Plan, has commenced power transmission, connecting five provinces and regions with a total length of 2260 kilometers [1][3] - The project utilizes over 70% of renewable energy sources from a total installed capacity of 14.2 million kilowatts [1] - The construction of this high-voltage transmission line took less than two years, setting a record for the fastest completion of a transmission line over 2000 kilometers in China [3] Infrastructure and Technology - The project faced significant challenges due to complex terrain, including snow-capped mountains and deserts, with construction temperatures in Xinjiang dropping to -30 degrees Celsius [4] - To ensure safety in high-wind areas, the transmission towers were reinforced based on scientific measurements of wind speeds [6] - The Chongqing converter station, which is the first of its kind in Southwest China, covers an area equivalent to 40 soccer fields and involved extensive earth-moving operations [14] Environmental Impact - The project is expected to deliver 36 billion kilowatt-hours of electricity annually to Chongqing, with at least 50% coming from clean energy sources, resulting in a reduction of 16.5 million tons of CO2 emissions each year [9] - The clean energy delivered is equivalent to planting 900 million trees in terms of carbon absorption [9] Economic Significance - The "Jiang Dian Ru Yu" project enhances the energy structure of Chongqing, providing enough electricity for 10 million households or the production of 5 million new energy vehicles annually [23] - This initiative strengthens the economic ties between Xinjiang, a major energy base, and Chongqing, an important industrial hub, facilitating a mutually beneficial relationship [21][23] Power Transmission Efficiency - The electricity from Xinjiang reaches Chongqing in just 7 milliseconds, significantly improving the cross-regional consumption of clean energy [10][11] - The project employs high-voltage direct current (HVDC) technology to minimize transmission losses, making it an efficient solution for long-distance power delivery [24]