Good find. Looks like state of the art in liquid air energy storage was 96% on storage side and 77% on recovery. ("Thermodynamic analysis of a hybrid energy st

Good find. Looks like state of the art in liquid air energy storage was 96% on storage side and 77% on recovery. ("Thermodynamic analysis of a hybrid energy storage system based on compressed air and liquid air" by Bharath Kantharaj, Seamus Garvey, Andrew Pimm) https://nottingham-repository.worktribe.com/OutputFile/758034 https://nottingham-repository.worktribe.com/OutputFile/75803...