I'm trying to optimize my RV set up and specifically my generator. I noticed that when I'm running one air conditioner and normal loads, AC loads are consuming just under 1,900 watts when purely inverting, but when I turn on the generator and keeping the loads the same, the AC loads jump to 2,100 watts. I can shut off the generator and it goes back to 1,900 watts. I thought this may be power lose due to a power factor issue in the step-up transformer that the generator uses to go from 120v to 240v. But connecting shore power at 240v directly still shows the additional 200 watt consumption on the AC loads. It doesn't seem to be related to battery charging as the generator only charges the batteries at ~1,000 watts and shore power is ~2,000 watts.
AC1 - 120v inverter generator with Victron Autotransformer in step up mode
AC2 - 240v shore power
Quattro 48/8000/110-2x100
AC out - Victron Autotransformer in split phase mode
How can I reduce this extra used wattage and make it more useful like charging the batteries?
Thank you, Robert