Going to say most of that imaginary power is there because of the inverter output filtering, which is most likely composed of 2 LC sections per inverter, to filter out most of the PWM waveform from the inverter output. Same for the regular inverter, but there you will have a much larger LC filter section as well, simply because of the higher current output.
If you have a battery system then you will likely have a separate solar power input used to charge the batteries, so no apparent power at all, as all at DC.
The 1A total over 14 panels is low, roughly 70mA per panel, which means there is likely 2 0.47uF class X2 filter capacitors in each output stage acting as filter, with probably another 0.1uF class X2 capacitor after the cascaded LC sections as a final filter, then 2 22n class Y capacitors to the solar panel voltage rail, acting as RF noise returns.