CAES offers a powerful means to store excess electricity by using it to compress air, which can be released and expanded through a turbine to generate electricity when the grid requires additional power. . 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. [1] The first utility-scale CAES project was in the Huntorf power plant in Elsfleth, Germany. . 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 initiative. This technology allows for the effective management of energy supply and demand through storage capabilities. It involves compressing gas in specially designed tanks or underground. . Battery storage is another option, but it has a high capital cost, can only provide power for short durations, and requires a large supply of rare earth metals. Since the 1870's, CAES systems have been deployed. . Compressed Air Energy Storage (CAES) has emerged as one of the most promising large-scale energy storage technologies for balancing electricity supply and demand in modern power grids. Renewable energy sources such as wind and solar power, despite their many benefits, are inherently intermittent.
