Chapter 6

Compressed Air Energy Storage in Underground Formations

Sabine Donadei
Gregor-Sönke Schneider    KBB Underground Technologies GmbH, Hannover, Germany

Abstract

Unlike fossil energy carriers, renewables are characterized by short-term and long-term fluctuations and therefore cannot supply energy upon demand. The increased use of fluctuating renewable energy sources strengthens the significance of the storage of electrical energy at the grid scale. In addition to pumped hydro technology which has been used successfully for many decades, and future hydrogen systems, there is increasing interest in a storage technology that was developed well over 50 years ago: compressed air energy storage. This process uses electrical energy to compress ...

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