JiminDenver wrote:
The easiest way is leaving the system portable. I have a 230w panel, a set of 25ft wires, and a controller that hooks to the battery. I set it in the sun in the morning and adjust it though out the day for the best exposure. Off the shelf it would cost around $400, about the same as a 70w kit here. 3 times the power for just a bit of learning and effort. A 100w set up is close to $200.
Currently our set up does well for us. We can run our trailer without worrying about the battery. That includes having the thermostat set at a comfortable level day and night, lighting the trailer end to end at night including the big porch light and we do use smaller inverters to run smaller items.
Jim in Denver - where did you purchase your components? We found a site Go Power (we use their lamps - they are awesome) that sells a portable 160W set up for $600. You price is much better!