Liquid air energy storage key points

What is liquid air energy storage?

Concluding remarks Liquid air energy storage (LAES) is becoming an attractive thermo-mechanical storage solution for decarbonization, with the advantages of no geological constraints, long lifetime (30–40 years), high energy density (120–200 kWh/m 3), environment-friendly and flexible layout.

Is liquid air energy storage a promising thermo-mechanical storage solution?

Conclusions and outlook Given the high energy density, layout flexibility and absence of geographical constraints, liquid air energy storage (LAES) is a very promising thermo-mechanical storage solution, currently on the verge of industrial deployment.

What is liquefying & storing air?

The basic principle of LAES involves liquefying and storing air to be utilized later for electricity generation. Although the liquefaction of air has been studied for many years, the concept of using LAES “cryogenics” as an energy storage method was initially proposed in 1977 and has recently gained renewed attention.

What is a standalone liquid air energy storage system?

4.1. Standalone liquid air energy storage In the standalone LAES system, the input is only the excess electricity, whereas the output can be the supplied electricity along with the heating or cooling output.

What is the exergy efficiency of liquid air storage?

The liquid air storage section and the liquid air release section showed an exergy efficiency of 94.2% and 61.1%, respectively. In the system proposed, part of the cold energy released from the LNG was still wasted to the environment.

How important are liquefied air and compressed air in LAEs systems?

Waste heat emerges as a significant theme, suggesting increased attention to thermal management and efficiency improvements in LAES systems. The continued presence of compressed air and liquefied gases demonstrates the ongoing importance of these fundamental components.