Compressed air energy storage (CAES) is a promising solution for large-scale, long-duration energy storage with competitive economics. This paper provides a comprehensive overview
By converting electricity into compressed air during low-demand periods and releasing it when needed, this technology bridges the gap between intermittent renewable sources and stable grid demands.
Recent advancements have focussed on optimising thermodynamic performance and reducing energy losses during charge–discharge cycles, while innovative configurations have been proposed to
As the global energy transition accelerates, energy storage technologies are becoming increasingly important in power systems. Compressed air energy storage (CAES), as a clean, efficient, and large
This technology strategy assessment on compressed air energy storage (CAES), released as part of the Long-Duration Storage Shot, contains the findings from the Storage Innovations (SI) 2030 strategic
Then, the commonly used key technologies, development trends, and engineering cases of large-scale CAES were introduced from the perspective of ground key process technologies and
PDF | On Nov 15, 2025, Ephraim Bonah Agyekum and others published Compressed air energy storage (CAES) systems: technological progress, challenges, and future prospects in renewable energy...
The cluster formed around CAES, energy storage, and wind power expresses the core conceptual and application-oriented focus of the field, putting in prominence the integration of
In this article, we explore the principles of CAES, its historical development, critical infrastructure requirements, various system configurations, benefits, challenges, current global
Energy storage technology is considered to be the fundamental technology to address these challenges and has great potential. This paper presents the current development and feasibilities of compressed
This technology strategy assessment on compressed air energy storage (CAES), released as part of the Long-Duration Storage Shot, contains the findings from the Storage Innovations (SI) 2030 strategic
Among the different ES technologies, compressed air energy storage (CAES) can store tens to hundreds of MW of power capacity for long-term applications and utility-scale. The increasing
Compressed air energy storage (CAES) is a promising energy storage technology due to its cleanness, high efficiency, low cost, and long service life. This paper surveys state-of-the-art
It reveals that CAES projects are evolving toward larger scales, higher efficiency, and more environmentally friendly practices. The future trends in CAES are analyzed, focusing on
Some methods of achieving “long-duration energy storage” are promising. For example, with pumped hydro energy storage, water is pumped
often happens when grid cannot accommodate more wind power. Among all the ES technologies, Compressed Air Energy Storage (CAES) has demonstrated its unique merit in terms
Energy storage technologies are key for sustainable energy solutions. Mechanical systems use inertia and gravity for energy storage. Electrochemical systems rely on high-density
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