Overview of current compressed air energy storage projects and analysis of the potential underground storage capacity in India and the UK

Abstract Compressed air energy storage (CAES) is an established and evolving technology for providing large-scale, long-term electricity that can aid electrical power systems achieve the goal of decarbonisation. CAES facilities often utilise large underground caverns to ensure high capacity systems. This results in need locations with suitable geological features develop a plant. paper examines recent ongoing large-scale projects presents candidate methods storing pressure using features. An assessment overall potential India presented by examining its greatest plants are determined. combined analysis renewable generation identify areas integrated Up 1.05% Indian land area deemed plant development if fully utilised would be sufficient meet needs India, however, practically very small fraction total could developed so other competing technologies should considered. Conversely, UK possesses good CAES, enough greatly exceed necessary storage, owing abundance salt beds not present India. For garner serious consideration aquifer based demonstrated.