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Watch also for an industry wide move to 48vdc variable speed air conditioners. With no need for dc to ac inverters and the low starting amp draw from the variable speed compressor these AC units will run easily off of a 48vdc house battery bank. The variable speed compressor also means the running watt draw will only be what is required to keep the interior temp where it needs to be so overall operating watt draw may well decrease. Stumbling point now is the fully depreciated tooling costs for the AC units leading to lower acquisition cost for the manufacturers. Over time this will even out for the 48vdc units bringing their cost down to something similar to the old design AC units.
Industrial electrical equipment normally now uses AC motors with variable frequency drive controllers to slowly ramp up the starting amps where they can. These simplify 3 phase to single phase conversion as well as allowing smaller, cheaper and lighter cables and motors since lower amp draw means less heat to dissipate. Variable speed compressors have other advantages too which the “mini-split” AC units now exploit.
The times they certainly are are a changing…..
Jerry