Are hybrid compressed air energy storage systems feasible in large-scale applications?

Technical performance of the hybrid compressed air energy storage systems The summarized findings of the survey show that the typical CAES systems are technically feasible in large-scale applications due to their high energy capacity, high power rating, long lifetime, competitiveness, and affordability.

What is a hybrid energy storage system?

Zhong et al. proposed an optimal hybrid system that combined compressed air and thermochemical energy storage with solid oxide fuel cell and gas turbine to achieve high RTE and cost of energy.

What is compressed air energy storage?

Energy storage technology through the use of compressed air is classified as CAES (Compressed Air Energy Storage). Other solutions that are gaining popularity are systems based on processes that enable the use of the energy that is consumed in a surplus period to generate hydrogen [13, 14].

What type of energy storage system does a hydrogen generator use?

The first is a typical Power-to-H2-to-Power system, which integrates hydrogen generators with a fuel cell system. The other two additionally use a compressed air energy storage installation. In the first case the compressed air energy storage system consists of a diabatic system.

Can energy storage be combined with hydrogen?

In this paper, an innovative concept of an energy storage system that combines the idea of energy storage, through the use of compressed air, and the idea of energy storage, through the use of hydrogen (with its further conversion to synthetic natural gas), has been proposed.

How does the energy storage system work?

During the charging period of the energy storage system, compressed air is collected in an underground tank thanks to the use of a three-section compressor which uses intersection coolers. The total sum of the amount of energy used to power the hydrogen generator installation and the D-CAES air compressor is 100 MWh.