National Grid(US:NGG) Shang Hai Zheng Quan Bao·2025-08-20 12:41Core Viewpoint - The Ningxia-Hunan ±800 kV UHVDC transmission project has been officially put into operation, marking a significant advancement in China's energy infrastructure, particularly in renewable energy transmission [1][2]. Group 1: Project Overview - The Ningxia-Hunan project spans 1616 kilometers, connecting key energy regions and is the first UHVDC line approved primarily for transmitting renewable energy from the "Shagouhuan" wind and solar power base [2]. - The project has a total investment of 28.1 billion yuan and is the third UHVDC project to be commissioned in China this year [1]. Group 2: Renewable Energy Focus - Over 70% of the installed capacity for the project is from renewable sources, setting a new record for similar projects. The total power capacity is 17.64 million kW, with 13 million kW coming from renewable energy, including 4 million kW from wind and 9 million kW from solar [2]. - The project is expected to deliver over 36 billion kWh of electricity annually to Hunan, with more than 50% of this coming from renewable sources [2]. Group 3: Economic and Infrastructure Impact - The project will increase Hunan's electricity supply by approximately one-sixth, enhancing the province's external power receiving capacity to 16 million kW [2]. - The investment in the project is projected to stimulate over 70 billion yuan in local investments in Ningxia, positively impacting infrastructure development and related industries [3]. Group 4: Technological Innovations - The project has developed a series of standardized results in UHVDC technology, including over 5,500 typical drawings and the establishment of various national and industry standards [3]. - All equipment for the project has been domestically manufactured, achieving successful initial operation and stable performance, marking a significant step in strengthening China's power transmission and transformation industry [3].