我国首个30万方量级大型储气建设取得重要进展！

Core Viewpoint - The construction of a 300MW advanced compressed air energy storage demonstration power station in Xinyang, Henan, has reached a significant milestone with the completion of 50% of the underground gas storage excavation, marking a key development in China's large-scale gas storage infrastructure [2][5]. Group 1: Project Overview - The underground gas storage facility has a capacity of 300,000 cubic meters, equivalent to the volume of 130 Olympic-sized swimming pools, highlighting its large scale [4]. - The Xinyang project is a national pilot demonstration project for new energy storage and is recognized as a major technological equipment in the energy sector by the National Energy Administration [7][8]. Group 2: Technological Innovations - The underground gas storage utilizes a "high-efficiency self-draining system" and a "breakthrough ultra-large borehole" design, which significantly enhances safety and operational stability [10][11]. - The innovative 15-meter ultra-large borehole design increases the effective volume of the gas storage to 300,000 cubic meters, representing a 300% increase compared to previous designs, while also reducing costs by 200 million yuan [12][13]. - The project employs horizontal drilling technology, which reduces construction risks and costs compared to traditional vertical drilling methods, allowing for more flexible site selection [14]. Group 3: Historical Context and Future Prospects - The development of compressed air energy storage technology in China began in 2018 with the establishment of the first underground gas storage experimental facility in Pingjiang, Hunan, which laid the groundwork for future projects [18]. - Subsequent projects, including the Zhangbei 100MW and the Datang Zhongning 100MW facilities, have further advanced the technology and demonstrated its potential for large-scale energy storage [20][22]. - The Datang Zhongning project is notable for being the first fully artificial underground gas storage facility in soft rock, addressing geological limitations and expanding the applicability of compressed air energy storage [29][30]. Group 4: Ongoing Developments - The Jiangxi Yanshan project is set to implement a multi-ring array design for its underground gas storage, enhancing operational efficiency and adaptability to various geological conditions [36]. - The company is also pioneering the use of digital twin technology for automated management of energy storage facilities, aiming to improve operational precision and efficiency [37]. - Continuous investment in research and development is planned to strengthen the company's position in the compressed air energy storage sector and contribute to national standards [39].