Having to shut down a genny at 10PM will probably be the norm at most controlled camping spots Whether it is in almost idle no load mode or high load mode,there are people that don't want to hear them when they are trying to get to sleep. I can live with that. But ask your self what would you be using after ten PM that would require 120 volts, maybe a late night cup of coffee with friends over, maybe the micro to heat up some more munchies. If you are the type of camper that must have 120 volts in this scenario then buy an good size inverter to make your 120 volts from your deep cycle batteries. Beware you can find yourself using up a lot of your 12 volt batteries if you are not careful. I know when I lived in the South there were some very hot humid nights and an ac was a must. So it may be a **** shoot if you can't generate 120 volts out of your genny after 10 PM on a humid night Maybe You can ask other fellow RV NASCAR fans what do they do about the AC while camping on a humid night at the track