We dry camp only and this year I put a renogy solar panel on the trailer. With 2 group 29s I was able to go 4 days without the generator. The trailer is all LED lights, there are 4 of us and we shower pretty much every day. No other electrical demands besides the fridge/fans and propane leak detector. I monitored the battery voltage closely. In the morning we were at 12.3V, by 8:30 the panel was on with the voltage at 13.3. I was shaded by 1:30 though but it was long enough to get them back to 12.6V. I have a ef2800, it's not very loud but in the middle of no where it might as well be a jet engine.