What is compressed air energy storage (CAES)?

Compressed Air Energy Storage (CAES) has been realized in a variety of ways over the past decades. As a mechanical energy storage system, CAES has demonstrated its clear potential self-discharge, long discharge times, relatively low capital costs, and high durability. However, its (RTE).

Is compressed air storage a viable solution for large scale power generation?

Katz and Lady published a research book on “Compressed Air Storage for Electric Power Generation” in which they discussed the integration of Renewable Energy System (RES) with CAES as a viable solution for reliable large scale power generation. Drost et al. coupled a steam power plant with a CAES system.

Is compressed air energy storage a viable alternative to pumped hydro storage?

A promising method for energy storage and an alternative to pumped hydro storage is compressed air energy storage, with high reliability, economic feasibility and its low environmental impact. Although large scale CAES plants are still in operation, this technology is not widely implemented due to large dissipation of heat of compression.

Is CAES a good energy storage system?

As a mechanical energy storage system, CAES has demonstrated its clear potential amongst all energy storage systems in terms of clean storage medium, high lifetime scalability, low self-discharge, long discharge times, relatively low capital costs, and high durability.

What is the importance of exergy in caes design?

An extensive classification and comparison of different CAES types is carried out. The concept of exergy is applied to enhance the fundamental understanding of CAES. The importance of accurate fluid property data for the design of CAES is examined. General aspects on CAES applications and upcoming R&D challenges are discussed.

How can a compressed air exergy be reused?

The simplest way to reuse the temperature related part of the exergy of the compressed air is to store the hot air itself inside a combined thermal energy and compressed air storage volume (Fig.18 a). Due to the high temperatures already reached at rather low pressure ratios these concepts require highly temperature resistant storage volumes.