三峡集团：浙江天台抽水蓄能电站首台机组并网发电

Core Viewpoint - The successful grid connection of the first unit of the Zhejiang Tiantai Pumped Storage Power Station marks a significant advancement in China's hydropower equipment manufacturing and operation, enhancing the East China Grid's capacity for clean energy regulation [1][2]. Group 1: Project Overview - The Tiantai Pumped Storage Power Station, located in Tiantai County, Zhejiang Province, features a total installed capacity of 1.7 million kilowatts, with four reversible turbine generator units, each having a capacity of 425,000 kilowatts, making it the largest single-unit pumped storage generator in China [1]. - The main construction of the Tiantai Pumped Storage Power Station began in May 2022 and faced challenges such as the design and installation of the largest single-unit pumped storage generator and the highest rated water head of 724 meters in a pumped storage station under construction [1]. Group 2: Technological Innovations - The project utilized core capabilities and experiences from the construction of the world's largest clean energy corridor, achieving breakthroughs in the application of domestically produced steel plates and welding materials at the 1000 MPa level, filling a domestic gap [2]. - Innovations included 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 mode of earth-rock dams in pumped storage stations [2]. Group 3: Industry Context - During the 14th Five-Year Plan period, China's pumped storage industry has rapidly developed, with total installed capacity exceeding 62 million kilowatts, maintaining the world's leading position for nine consecutive years [3]. - The company has focused on deploying eco-friendly and necessary pumped storage projects in power load centers and areas rich in renewable resources, with a total of 21.2 million kilowatts in operational and under-construction pumped storage projects [3]. - The company aims to leverage its construction management experience to advance pumped storage project development and ensure the safe and efficient operation of existing plants, contributing to the establishment of a new energy system and power system in China [3].