The first step is to define the amount of use you will have. This is calculated in Amp Hours. Here is a downloadable spreadsheet
Calculator that will help you define the use.
After you have the use estimates and a total, you can choose how much solar harvesting you want to do and how long you wish to run a generator every day. I run a small dorm fridge and have 300 AH of battery with a 235w module, for comparison. My heating is handled with a propane heater that doesn't use any electricity. My alarms are battery operated and have all LED lighting. The biggest use after my fridge is the TV, laptop and phone charging, and lastly, the water pump. I also have a couple of fans but those are used very seldom.
Good luck with your boondocking rig!
