探秘压缩空气储能电站：解锁能源存储“新密码”

Core Viewpoint - The article highlights the innovative significance and unique charm of the "Energy Storage No. 1" project, a 350 MW compressed air energy storage demonstration power station built by China Energy Construction Group in Tai'an, Shandong, showcasing advancements in energy storage technology and its role in stabilizing the power grid [1][2]. Group 1: Project Overview - The "Energy Storage No. 1" project features a 350 MW salt cavern-based compressed air energy storage system, designed for 8 hours of charging and 4 hours of discharging, with a potential extension to 6 hours, capable of generating an annual output of 460 million kWh, sufficient for over 200,000 households [1][2]. - The project employs an integrated model of research, investment, construction, and operation, emphasizing modern efficiency and scientific planning across its extensive site [1]. Group 2: Technical Insights - The project utilizes abandoned underground salt caverns as gas storage, where excess electricity during low demand compresses air into high-pressure states, which is later released during peak demand to generate electricity [2]. - The core technology involves storing heat generated during the compression process in thermal storage tanks, enhancing the efficiency of energy conversion and grid stability [2]. Group 3: Recognition and Impact - The project has been recognized as a new type of energy storage demonstration project in Shandong Province for 2023 and included in the major project lists for 2024, indicating its significance in the region's energy transition and industrial upgrades [3].