TY - CHAP
T1 - Compressed Air Energy Storage (CAES): Current Status, Geomechanical Aspects, and Future Opportunities
AU - Kim, Seunghee
AU - Dusseault, Maurice
AU - Babarinde, Oladipupo
AU - Wickens, John
N1 - Publisher: The Geological Society of London
PY - 2023/8/30
Y1 - 2023/8/30
N2 - A compressed air energy storage (CAES) facility provides value by supporting the reliability of the energy grid through its ability to repeatedly store and dispatch energy on demand. Two main advantages of CAES are its ability to provide grid-scale energy storage and its utilization of compressed air, which yields a low environmental burden, being neither toxic nor flammable. The focus of this review paper is to deliver a general overview of current CAES technology (diabatic, adiabatic and isothermal CAES), storage requirements, site selection and design constraints. We discuss underground storage options suitable for CAES, including submerged bladders, underground mines, salt caverns, porous aquifers, depleted reservoirs, cased wellbores and surface pressure vessels. A geomechanical perspective is provided regarding the pressure limits for these options. The impacts of cyclic injection and withdrawal of compressed air, and the importance of caprock assessments with porous rock CAES, are also discussed. In addition, we provide an overview of the large-scale CAES facilities that are currently active or under development and a cost comparison of the diabatic, adiabatic and isothermal CAES options. Lastly, we outline major challenges and future opportunities for CAES and the top priorities for research, industry and stakeholders.
AB - A compressed air energy storage (CAES) facility provides value by supporting the reliability of the energy grid through its ability to repeatedly store and dispatch energy on demand. Two main advantages of CAES are its ability to provide grid-scale energy storage and its utilization of compressed air, which yields a low environmental burden, being neither toxic nor flammable. The focus of this review paper is to deliver a general overview of current CAES technology (diabatic, adiabatic and isothermal CAES), storage requirements, site selection and design constraints. We discuss underground storage options suitable for CAES, including submerged bladders, underground mines, salt caverns, porous aquifers, depleted reservoirs, cased wellbores and surface pressure vessels. A geomechanical perspective is provided regarding the pressure limits for these options. The impacts of cyclic injection and withdrawal of compressed air, and the importance of caprock assessments with porous rock CAES, are also discussed. In addition, we provide an overview of the large-scale CAES facilities that are currently active or under development and a cost comparison of the diabatic, adiabatic and isothermal CAES options. Lastly, we outline major challenges and future opportunities for CAES and the top priorities for research, industry and stakeholders.
KW - ISGS
U2 - 10.1144/SP528-2022-54
DO - 10.1144/SP528-2022-54
M3 - Chapter
SN - 9781786205766
T3 - GSL Special Publication
SP - 87
EP - 100
BT - Enabling Secure Subsurface Storage in Future Energy Systems
A2 - Miocic, J. M.
A2 - Heinemann, N.
A2 - Edlmann, K.
A2 - Alcalde, J.
A2 - Schultz, R. A.
PB - Geological Society of London
ER -