关键突破！我国单机容量最大抽水蓄能电站首台机组并网发电

Group 1 - The Zhejiang Tiantai Pumped Storage Power Station has successfully connected its first unit to the grid, marking a significant breakthrough in China's hydropower equipment and engineering construction sector [1] - This project is a key initiative under China's 14th Five-Year Plan, with a total investment exceeding 10 billion yuan, comprising an upper reservoir, lower reservoir, water conveyance system, and underground powerhouse [4] - The power station is equipped with four generating units, each with a capacity of 425,000 kilowatts, resulting in a total installed capacity of 1.7 million kilowatts [4] Group 2 - The power station will play a crucial role in peak regulation, valley filling, frequency modulation, phase adjustment, energy storage, and emergency backup for the Zhejiang power grid, enhancing the flexible dispatch capability of the East China power grid and ensuring stable operation of the power system [8]