* An air liquidation mechanism (cooling system + pressurization system)
* A heat engine
* Liquified air storage system
* A turbine
This is why exotic storage systems don't really pan out. Unless you already have 80% of the infrastructure already lying around (like in pumped hydro storage), you're better off buying batteries than buying the myriad of systems needed for some exotic energy storage system.
* Air filtration
* An air liquidation mechanism (cooling system + pressurization system)
* A heat engine
* Liquified air storage system
* A turbine
This is why exotic storage systems don't really pan out. Unless you already have 80% of the infrastructure already lying around (like in pumped hydro storage), you're better off buying batteries than buying the myriad of systems needed for some exotic energy storage system.