Core Viewpoint - The article highlights the successful implementation of the world's first ±1100 kV ultra-high voltage direct current transmission project, showcasing China's energy technology innovation capabilities and its role in optimizing energy resource allocation across regions [1][4]. Group 1: Project Overview - The ±1100 kV ultra-high voltage direct current transmission project spans approximately 3,300 kilometers across six provinces in China, converting abundant energy resources from Xinjiang into electricity for the eastern regions [1]. - The project was conceived in 2013 to address the challenge of transforming Xinjiang's energy advantages into economic benefits while meeting the energy demands of East China [1][2]. - The project faced significant engineering challenges, including insulation issues at high voltage levels and energy loss control over long distances [2]. Group 2: Technological Achievements - Over 100 research institutions collaborated for five years to solve multiple global challenges, leading to the successful assembly of the world's first ±1100 kV converter transformer using a "modular" onsite assembly technique [2]. - The project achieved breakthroughs in both transmission distance, exceeding 3,000 kilometers, and reductions in line losses and unit investment costs [2]. Group 3: Economic and Environmental Impact - The project enables the integration of coal, wind, and solar power from Xinjiang, facilitating efficient energy transmission to East China and significantly enhancing the utilization of renewable energy [2][3]. - The transmission capacity of the project is 12 million kilowatts, equivalent to powering 400 million 30-watt light bulbs, with an annual electricity delivery exceeding 62 billion kilowatt-hours [3]. - The project has contributed to a significant reduction in carbon emissions, with approximately 6.5 million tons of CO2 emissions reduced annually for the East China region [4]. Group 4: Future Prospects - The project has established a "wind-solar-fire-storage integration" model in Xinjiang, promoting a balance between clean coal utilization and renewable energy consumption [3]. - The project has positioned itself as a key player in China's energy transition towards greener sources, enhancing the scale and efficiency of energy transmission from the west to the east [4].