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让压气储能成为绿色能源新名片

Core Viewpoint - Compressed air energy storage (CAES) is gaining significant attention as a promising new energy storage technology, with the world's largest single-unit CAES project, a 350 MW facility in Tai'an, Shandong, under construction by China Energy Construction Corporation (CEC) [1][3]. Group 1: Project Overview - The Tai'an CAES project, named "Energy Storage No. 1," is designed to store energy for 8 hours and generate power for 4 hours, with an annual output of 460 million kWh, sufficient to power over 200,000 households for a year [1][2]. - The project utilizes abandoned salt caverns as storage for compressed air, which is heated and expanded to generate electricity during peak demand periods, effectively enhancing grid stability and accommodating renewable energy sources [2][3]. Group 2: Technological Innovations - Unlike most existing CAES systems that require fossil fuels for heating during the power generation phase, the Tai'an project employs a non-combustion technology that eliminates pollution and heat loss, marking a significant advancement in the field [2][4]. - The project acts as a large-scale air purifier, filtering out dust and impurities from the air used in the energy conversion process [2]. Group 3: Strategic Importance - The Tai'an project is a key initiative in China's energy strategy, aimed at promoting green and low-carbon transitions, enhancing energy security, and optimizing energy structure [3][5]. - The successful implementation of this project is expected to activate over 90% of China's salt cavern resources, providing a model for the utilization of similar resources across the country [4][5]. Group 4: Future Prospects - CEC aims to leverage its technological innovations and integrated industry chain to position itself as a leader in the global CAES market, promoting the technology as a hallmark of China's green energy initiatives [5].