One of the reasons I purchased this trailer was because it was so easily set up to camp "off line". Depending where you are, and the circumstances is truely another story, or lets leave that to another thread.
We camp off line most of the time with a twin deep cycle battery setup, and a 80 watt solar panel, with a 30 watt/solar panel to help with an inverter/battery system. During the summer up here in Canada, i can run two fantistic fans, waterpump, and lights, without concern, while the panel replentishes the batteries over the daylight period.
Being that all of the heat related appliances are run on propane,waterheater,furnace and the fridge .... you can last a long time.
Our longest time camped without electricty was two full weeks, no issues, just refilling of the freshwater tank, and other little duties.
cheers .. d-mo
2008 Nissan Frontier 4x4
2011 Rockwood A122