不到1秒钟 四川水电“闪送”1900公里

Core Viewpoint - The successful commissioning of the Jinshang (Jinsha River upstream) to Hubei ±800 kV UHVDC project marks a significant advancement in high-altitude UHVDC technology, enhancing clean energy transmission capabilities and addressing regional power supply challenges in China [1][2]. Technical Innovation - The project utilizes ±800 kV rated voltage and 8 million kW rated capacity, achieving a transmission distance of nearly 1900 kilometers [1]. - It is the first UHVDC project to successfully apply site-level cascading technology in high-altitude areas, representing a breakthrough in technical innovation [1][2]. - The construction team set a world record by erecting transmission towers at an altitude of 4797.9 meters, showcasing the project's capability to operate in extreme environments [2]. Project Benefits - The project is expected to 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 [1][2]. - It will facilitate large-scale development and transmission of hydropower from the Jinsha River upstream, optimizing the energy structure at the receiving end [2]. - The project will alleviate long-term power supply and demand imbalances in Central China, contributing to the establishment of a clean, low-carbon, safe, and efficient energy system [2]. Infrastructure Development - With the commissioning of the Jinshang-Hubei UHVDC project, the total number of UHV transmission corridors from Sichuan has reached seven, enhancing the province's capacity to export electricity [1][2]. - Sichuan has become the leading province in UHV construction in China, with a total of eight UHV projects in operation, significantly increasing its electricity export capacity to 62.6 million kW, doubling the capacity achieved during the 13th Five-Year Plan [5]. - The ongoing investment in the power grid infrastructure aims to further enhance the transmission capabilities and establish a comprehensive power delivery network across the region [5].