The heat from solar energy can be stored by sensible energy storage materials (i.e., thermal oil) and thermochemical energy storage materials (i.e., CO 3 O 4 /CoO) for heating the inlet air of turbines during the discharging cycle of LAES, while the heat from solar energy was directly utilized for heating air in the work of .
However, the implementation of this solution requires a suitable energy storage method. Liquid Air Energy Storage (LAES) has emerged as a promising energy storage method due to its advantages of large-scale, long-duration energy storage, cleanliness, low carbon emissions, safety, and long lifespan.
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.
2.1. History 2.1.1. History of liquid air energy storage plant The use of liquid air or nitrogen as an energy storage medium can be dated back to the nineteen century, but the use of such storage method for peak-shaving of power grid was first proposed by University of Newcastle upon Tyne in 1977 .
Addressing this intermittency involves four primary methods: flexible generation, interconnections, demand-side management, and energy storage. Among these, Energy Storage Systems (ESS) play a crucial role, capable of storing excess energy during periods of high renewable generation and releasing it when demand exceeds supply .
Nevertheless, liquid air as an energy carrier holds promise for applications in cold chain supply with power generation, potentially outperforming fossil fuels in terms of technical, economic, and environmental aspects. However, economic reports of the decoupled LAES systems are scarce and require further elaboration.