PV access power describes how much array capacity can be connected within the solar-input limits; it does not increase the continuous AC output above 6kW. A larger array can provide more energy during weaker irradiance while supporting loads and battery charging. The off grid solar inverter uses two MPPT trackers with a 65–450V operating range, so string voltage, current and module count must still stay within the electrical limits. PV sizing should be based on energy goals and local solar conditions, not only the headline 12kW figure.