Lufttrycksarbete
Lufttrycksarbete, also known as compressed air energy storage (CAES), is a method of storing energy using compressed air in underground caverns or above-ground containers. The technology works by compressing air during periods of low energy demand and releasing it to generate electricity when needed.
The process involves two main phases. During the charging phase, excess electrical energy from the grid or
There are two primary types of CAES systems. Diabatic CAES releases heat generated during compression into
The technology offers several advantages including large-scale energy storage capacity, long-duration storage capability, and relatively low
However, limitations exist including geographical constraints for suitable storage sites, energy losses during compression and expansion
Commercial CAES plants have been operational since the 1970s, with notable installations in Germany and the
The technology represents an important component in the transition to renewable energy systems, providing grid stability