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.

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].

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.

Why do we need electrochemical hydrogen compressors?

Modular, safe, inexpensive, and efficient methods for hydrogen storage are urgently needed. Electrochemical hydrogen compressors (EHCs) are becoming increasingly prominent because they are modular, highly efficient, and possess hydrogen purification functions with no moving parts.

What is direct compression of hydrogen?

Direct compression of hydrogen is a more economical and convenient process compared to liquefaction. It involves compressing hydrogen using associated hydrogen compressors, which are crucial for the development of the hydrogen energy industry.

What makes EHCs more efficient than other hydrogen compressors?

EHCs can allow for the electrochemical compression of hydrogen with lower electric power consumption, reduced thermal loss and higher efficiency as compared with other non-mechanical hydrogen compressors as well as simple device designs.