我国单机容量最大抽水蓄能电站——天台抽水蓄能电站首台机组并网发电

Core Viewpoint - The Zhejiang Tiantai Pumped Storage Power Station, built by China Three Gorges Corporation, has successfully connected its first unit to the grid, marking a significant advancement in China's hydropower equipment manufacturing and operation [1] Group 1: Project Details - The first unit of the Tiantai Pumped Storage Power Station has a single capacity of 425,000 kilowatts, making it the largest single-unit pumped storage generator in China [1] - The power station is part of the national "14th Five-Year Plan" for pumped storage development, with a total installed capacity of 1.7 million kilowatts from four reversible turbine generator units [1] - The main construction of the Tiantai Pumped Storage Power Station began in May 2022 and faced numerous challenges, including the design and installation of the largest single-unit pumped storage generator and the longest water diversion tunnel [1] Group 2: Technological Innovations - The project has successfully applied domestically produced steel plates and welding materials rated at 1000 MPa for the first time, overcoming previous bottlenecks in high-strength steel production [2] - Innovations include the first application of low-heat cement in the concrete panels of the pumped storage industry, significantly improving the quality and temperature control of the concrete [2] - The development of intelligent dam construction technology using unmanned machinery has revolutionized the filling process of earth-rock dams in pumped storage stations [2] Group 3: Industry Impact - The Tiantai Pumped Storage Power Station will primarily serve the Zhejiang power grid and enhance the flexibility of the East China power grid, aiding in the absorption of renewable energy and ensuring stable grid operations [2] - During the "14th Five-Year Plan" period, China's total installed capacity for pumped storage has exceeded 62 million kilowatts, maintaining the world's leading position for nine consecutive years [2] - China Three Gorges Corporation has a total of 21.2 million kilowatts of pumped storage projects either in operation or under construction [2] Group 4: Future Plans - China Three Gorges Corporation aims to continue leveraging its experience from the construction of the world's largest clean energy corridor to advance pumped storage projects and ensure the safe and efficient operation of existing facilities [3] - The company is committed to supporting the construction of a new energy system and a new power system in China, contributing to the nation's energy strength [3]