Chapter 5

Compressed Air Energy Storage

Seamus D. Garvey
Andrew Pimm    Faculty of Engineering, University of Nottingham, Nottingham, United Kingdom


Compressed air energy storage (CAES) is known to have strong potential to deliver high-performance energy storage at large scales for relatively low costs compared with any other solution. Although only two large-scale CAES plants are presently operational, energy is stored in the form of compressed air in a vast number of situations and the basic technologies of air compression and expansion are very familiar. This chapter outlines some of the fundamental elements of energy storage via compressed air and highlights why CAES actually represents a very wide array of possible plant types.

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