As an efficient energy storage method, thermodynamic electricity storage includes compressed air energy storage (CAES), compressed CO2 energy storage (CCES) and pumped thermal energy storage (. ••Three typical thermodynamic electricity storage technologies are r. AA-CAES Advanced adiabatic compressed air energy storageB-HP-ORC Basic heat pump. In order to achieve the “dual carbon” goal, China has vigorously developed wind and solar energy. As of the end of June 2023, China's cumulative installed power generation capac. 2.1. Basic principleCAES converts electricity into heat energy and pressure energy for storage to realize the time-space transfer of electricity. In fact, as an energy car. For CCES, main elements of this section are the same as those for CAES, including basic principles, system structures, storage devices and demonstrations. However, considering the f.