See Why Standard Mini Splits Can't Compete
A standard mini split runs every cooling hour on grid power, while a Photon AC solar-hybrid mini split runs the hottest, costliest daytime hours on its own rooftop solar for about $0 in energy and switches to the grid only after dark. It is a SEER2 21 ductless heat pump that accepts DC power from 3–7 rooftop panels directly — no separate inverter and no battery bank — delivering the lowest 10-year total cost of ownership compared with both standard mini splits and solar-plus-battery systems.