Sou Hu Cai Jing·2025-08-19 07:30Core Insights - China Energy Construction has successfully completed the world's largest artificial cavern gas storage in-situ testing platform, achieving a test pressure of 18 MPa, which is the highest level globally [1][3] - The laboratory, established by China Energy Construction Digital Technology Group, features two super-large test caverns with a maximum depth of 110 meters and a maximum test pressure of 20 MPa, marking it as the largest in terms of scale and pressure parameters worldwide [3] - The breakthrough in technology will accelerate the industrialization and scaling of compressed air energy storage, supporting various strategic material storage applications, including hydrogen, natural gas, and oil [3][4] Summary by Sections Technological Achievements - The testing platform has validated the sealing and stability performance indicators, achieving international advanced levels [1] - The laboratory has developed eight pioneering results, including a composite sealing system and theories on rock mass bearing capacity, all achieved with 100% autonomy [3] Industry Impact - This advancement opens new avenues for deep underground resource utilization, integrating high economic efficiency, reliability, construction efficiency, and operational controllability [3] - The technology supports not only high-pressure air storage but also has broad applications in hydrogen, natural gas, ammonia, and oil storage, contributing to the integrated development of energy sources [3] Project Milestones - The compressed air energy storage demonstration project in Jiuquan, Gansu, with a capacity of 300 MW, has successfully connected to the grid, marking a new breakthrough in China's compressed air energy storage industry [4]