这条特高压够绿！——走近我国第三条“疆电外送”直流大动脉

Core Points - The Hami-Chongqing ±800 kV UHVDC project is a significant infrastructure initiative aimed at transmitting clean energy from Northwest China to Chongqing, covering a distance of approximately 2,290 kilometers and passing through five provinces [2][4] - The project boasts a high proportion of renewable energy, with over 70% of its 14.2 million kW capacity coming from wind, solar, and thermal sources, setting a new record for similar projects [3][4] - Upon completion, the project is expected to deliver 36 billion kWh of electricity annually to Chongqing, significantly reducing coal consumption and CO2 emissions [4] Investment and Economic Impact - The Hami UHVDC project has an investment of 28.6 billion yuan, which has stimulated over 100 billion yuan in upstream and downstream investments, creating more than 40,000 jobs [8][9] - The project is fostering the growth of the renewable energy equipment manufacturing industry in Hami, with local production of wind power equipment contributing to a 20 billion yuan increase in the output value of the power transmission and transformation equipment manufacturing sector [9] - The establishment of a comprehensive industrial chain from research and development to operation and maintenance is being facilitated by the project, promoting a green economy in the region [9] Technological Innovations - The project employs advanced technologies to address extreme weather challenges, including a new double-arm support technology that enhances wind resistance by 50% and improves construction efficiency [5][6] - The use of domestically produced ±800 kV converter transformers, with a capacity of approximately 400,000 kW each, highlights the project's commitment to local manufacturing [7] Future Developments - The project is part of a broader strategy to transform Xinjiang into a national energy security base, with plans for additional UHVDC and AC transmission channels to further leverage the region's resource advantages [9]