Hi Joe,
Most RV's are not set up well to charge from the alternator. I'm glad yours is.
Solar tends to extend the lifetime of the battery bank, especially if it is large enough to equalize the house battery bank. It means that coming out of storage the battery bank is at 100% state of charge. It may obviate the need for a generator when coupled with an inverter. It tends to be a one time "set it and forget it" cost unlike a generator which wants to be fed fuel.
My solar system has paid for itself in campground fees saved.
joebedford wrote:
Not sure why you concluded solar is required. I suppose if one were to boondock for a long time, solar would be good. I don't, so I don't need solar.