Core Viewpoint - The Nanning Pumped Storage Power Station in Guangxi is set to be fully operational by the end of 2025, marking a significant step in the construction of a new power system in Guangxi as part of the national "14th Five-Year Plan" [1] Group 1: Project Overview - The Nanning Pumped Storage Power Station has an installed capacity of 1.2 million kilowatts, featuring four 300,000-kilowatt pumped storage units, making it the first independent pumped storage project in China to be approved, constructed, and put into operation within a single five-year plan [1] - Once operational, the power station is expected to consume up to 2.5 billion kilowatt-hours of clean energy annually, resulting in a reduction of carbon dioxide emissions by 2.2 million tons [1] Group 2: Technological Innovations - The project has introduced advanced construction technologies, including the use of a tunnel boring machine (TBM) named "Nanning No. 1," which is the first application of the world's most advanced tunneling equipment in the pumped storage sector in South China [2] - The construction of the self-draining tunnel was completed in 460 days, achieving a precision breakthrough with a total length of 5,099 meters [2] Group 3: Construction Efficiency - A new water storage method combining "large flow pumping" and "small flow stabilization" was adopted for the first time in the country, allowing for rapid water transfer to the upper reservoir, achieving efficiency over 20 times that of natural rainfall [3] - The total volume of earth and stone excavation for the project reached 19 million cubic meters, with the installation of a dedicated battery swap station for electric heavy trucks, promoting green construction practices [3]

Core Viewpoint - The Nanning Pumped Storage Power Station, as part of China's 14th Five-Year Plan, is set to be fully operational by the end of 2025, marking a significant step in the development of a new energy system in Guangxi [1] Group 1: Project Overview - The Nanning Pumped Storage Power Station has an installed capacity of 1.2 million kilowatts, featuring four 300,000-kilowatt pumped storage units, and is the first independent pumped storage project approved, constructed, and put into operation within a single five-year plan in China [1] - The power station is expected to consume up to 2.5 billion kilowatt-hours of clean energy annually, leading to a reduction of 2.2 million tons of carbon dioxide emissions [1] Group 2: New Scenarios and Technologies - The construction site of the Nanning Pumped Storage Power Station showcases new scenarios, including the use of a tunnel boring machine that completed a 5-kilometer drainage tunnel in 460 days, achieving four times the efficiency of manual drilling [2] - The project has implemented a battery swap station for electric heavy trucks, allowing for quick battery changes in 3 to 5 minutes, which supports the green construction initiative [3] - The waterway system of the power station utilizes innovative materials, such as reinforced concrete, which saves approximately 10,000 tons of steel compared to pure steel materials [5] Group 3: Innovative Construction Methods - The project has adopted a new water storage method combining "large flow pumping" and "small flow stabilization" to address safety concerns related to the natural basin topography, achieving a water storage efficiency over 20 times that of natural rainfall [8] - The construction timeline from the start of the main project to full operation is only 41 months, reflecting a new speed in the construction of pumped storage projects in China [7]