Having the power...........

Electricity
If you are setting up camp near the grid getting hooked up is the best option.  Most camps don't use much power and it is just less work than other options.  Solar panels, generators and windmills all require labor but will provide a great education on how to live off the grid.  Campers, travel trailers and motorhmes are all well suited for off grid living.  Equiped with 12 volt lights and appliances they make great remote camps.  The location of the camp decides how to power it "Why build a windmill in a valley next to a fast moving stream?".  Hydro generators are easy to build and make power around the clock.  Batteries and power inverters are fairly cheap but when you are off the grid you have to learn the art of using less A/C power......