第7条出川“电力高速公路”投运 不到1秒钟 四川水电“闪送”1900公里

Core Viewpoint - The completion of the Jinshang-Hubei UHVDC project marks a significant advancement in China's high-altitude power transmission capabilities, enhancing the electricity supply to central China while promoting clean energy utilization [2][4][5]. Technical Features - The project utilizes ±800 kV rated voltage and an 8 million kW rated capacity, with a transmission distance of nearly 1900 kilometers [2]. - It is the world's first UHVDC project to successfully apply site-level cascade technology in high-altitude areas, representing a breakthrough in technical innovation [2]. Engineering Benefits - Once operational, the project will deliver approximately 40 billion kWh of clean electricity annually, equivalent to replacing 12 million tons of standard coal and reducing carbon dioxide emissions by about 30 million tons [2][5]. - The project will support the large-scale development and transmission of hydropower from the Jinsha River upstream, optimizing the energy structure at the sending end [4]. Impact on Energy Supply - The Jinshang-Hubei UHVDC project will alleviate long-term power supply and demand conflicts in Central China, contributing to the establishment of a clean, low-carbon, safe, and efficient energy system [5][6]. - The project is expected to significantly increase the clean energy consumption ratio in Hubei, acting as a timely solution to the region's electricity supply challenges [4][5]. Infrastructure Development - With the commissioning of the Jinshang-Hubei UHVDC project, Sichuan has now established seven UHV transmission corridors, solidifying its position as the leading province in UHV construction in China [6][8]. - The total external transmission capacity of Sichuan's power grid has reached 62.6 million kW, doubling the capacity achieved during the 13th Five-Year Plan, which greatly alleviates the issue of water abandonment during peak water periods [7][8]. Future Prospects - Sichuan is set to continue its investment in power grid infrastructure, with plans for additional UHV projects and cross-provincial transmission channels to enhance the overall power delivery network [8].