Compressed Air Energy Storage (CAES): New Possibilities for a

Summary For decades, the world knew only two compressed air energy storage (CAES) facilities, serving as backup and power plant black-start solution or offering frequency regulation.

Key Technologies of Large-Scale Compressed Air Energy Storage

Introduction As a long-term energy storage form, compressed air energy storage (CAES) has broad application space in peak shaving and valley filling, grid peak regulation, new energy

Compressed-air energy storage

OverviewTypesCompressors and expandersStorageEnvironmental ImpactHistoryProjectsStorage thermodynamics

Compressed-air-energy storage (CAES) is a way to store energy for later use using compressed air. At a utility scale, energy generated during periods of low demand can be released during peak load periods. The first utility-scale CAES project was in the Huntorf power plant in Elsfleth, Germany, and is still operational as of 2024 . The Huntorf plant was initially de