人民日报丨抽水蓄能装机容量连续九年居世界首位，技术水平显著提升

Core Viewpoint - The development of pumped storage hydropower in China is progressing positively, with significant technological advancements and a leading global position in installed capacity [1][2][3]. Group 1: Installed Capacity and Performance - As of the end of 2024, China's total installed capacity for pumped storage will reach 58.69 million kilowatts, accounting for over 30% of the global total, maintaining the world's leading position for nine consecutive years [2][3]. - The operational efficiency of pumped storage is improving, with approximately 57,000 startup instances for pumping and 61,000 for generation in 2024, reflecting year-on-year increases of 30% and 36% respectively, and a 14.5% increase in generation volume [2]. Group 2: Technological Advancements - The technology for pumped storage plants has seen comprehensive upgrades, with significant projects such as the 425-megawatt unit in Zhejiang and the successful construction of high-head inclined shafts in Hunan [3]. - The industry is moving towards higher head, larger capacity, and high-speed unit testing and construction, indicating a positive overall development trend [3]. Group 3: Future Development and Challenges - The country has identified over 1,500 potential pumped storage sites with a total capacity of approximately 1.6 billion kilowatts, equivalent to over 70 Three Gorges power stations [3]. - Challenges include a reduction in quality site resources and an incomplete pricing mechanism for electricity, prompting suggestions for a benchmark capacity pricing mechanism and improved trading rules for ancillary services [4][5]. - The National Development and Reform Commission and the National Energy Administration have issued guidelines to promote high-quality development in the pumped storage sector, emphasizing ecological priority and optimized layout [5].