Just provide 3-phase power. The load is nearly constant, and lots of equipment already handles it fine, e.g. motors much prefer 3 phases even at low power, due to this constant power/symmetry.
sure 3-phase would work towards the future, and saves a conductor too, I'm trying to save all consumer equipment (since they universally use 2-phase AC) AND the energy buffer capacitors / inductors in the inverter.
Maybe the real thing here is to get more inductive load equipment shipped with 3-phase as the default. Dryers and stoves are, but they're mostly resistive, and it's for load reasons— 1500W just isn't enough for those applications.
But thinking of air conditioners, fridges, washing machines, central vacs, etc; those are all typically shipped today with a two-phase plug but could use 3-phase. OTOH, if they're not actually driving the motor with the 3-phase and are all just rectifying the power and generating their own waveform with a VFD then there's no point; they should have an option to accept DC.
