Air energy storage technology

What is compressed air energy storage?

Compressed air energy storage is derived from gas turbine technology, and the concept of using compressed air to store electric energy dates back to the 1940s . The principle of a traditional CAES plant is described as follows (Fig. 1 a).

What is hydraulic compressed air energy storage technology?

Hence, hydraulic compressed air energy storage technology has been proposed, which combines the advantages of pumped storage and compressed air energy storage technologies. This technology offers promising applications and thus has garnered considerable attention in the energy storage field.

Which long-term energy storage technologies are available?

To date, commercialized megawatt-scale long-term energy storage technologies include pumped hydroelectric storage (PHS) and compressed air energy storage (CAES) [8, 9]. At the end of 2021, PHS still exhibited significant advantage and constituted 86.42 % of the existing energy storage technologies.

How can compressed air energy storage improve the stability of China's power grid?

The intermittent nature of renewable energy poses challenges to the stability of the existing power grid. Compressed Air Energy Storage (CAES) that stores energy in the form of high-pressure air has the potential to deal with the unstable supply of renewable energy at large scale in China.

Which energy storage technology is most suitable for large-scale energy storage?

Among the available energy storage technologies, Compressed Air Energy Storage (CAES) has proved to be the most suitable technology for large-scale energy storage, in addition to PHES .

What is underwater compressed air energy storage system?

Underwater compressed air energy storage system In the 1980s, Laing et al. proposed the UWCAES technology, which realizes the constant-pressure storage of compressed air through hydrostatic pressure.