我国人工硐室储气技术取得新突破创造运行时长与可靠性的世界纪录

Core Viewpoint - China Energy Construction has successfully completed a large-scale underground gas storage test, achieving a world record for high-pressure gas storage and long-duration operation, marking a significant advancement in energy storage technology and its industrial application [1][6]. Group 1: Technological Breakthroughs - The successful test in Changsha, Hunan, validated the operation of ultra-high-pressure gas storage at 18 MPa and a continuous operation period of 500 hours, with a leakage rate below 0.1% [1]. - The artificial cavern gas storage technology is seen as a critical solution to the challenges posed by the intermittent nature of renewable energy sources, enabling a more stable power grid [3][4]. - China Energy Construction has developed a comprehensive system solution for artificial cavern gas storage, which includes innovations in sealing, operation, detection, construction, and application [6]. Group 2: Industry Applications - The first 300 MW compressed air energy storage demonstration project using artificial cavern technology has been established in Jiuquan, Gansu, expected to deliver 594 million kWh of green electricity annually [5]. - The "Energy Storage No. 1" project in Hubei has set multiple world records in terms of single-unit power, storage scale, and conversion efficiency [5]. - The 350 MW compressed air energy storage project in Tai'an is the largest single-unit project under construction globally, utilizing abandoned salt cavern resources to enhance grid regulation capabilities [5]. Group 3: Future Prospects - The artificial cavern gas storage technology is expected to expand the potential locations for large-scale energy storage, particularly in regions previously unsuitable for such developments, thus addressing renewable energy integration challenges [9]. - The technology's versatility allows for the storage of various energy mediums, including hydrogen, natural gas, and ammonia, contributing to a comprehensive underground energy storage solution [8][10]. - The company aims to continue advancing the technology and promoting its industrial application, particularly in "desert" regions, to enhance energy security and support global green transitions [11].