When I talked to the guy at ABS Alaskan you can google them they also have a store in WA
I asked him about solar cells and he said the efficiency of a solar cell compared to a solar panel is 8% for the cells and 17% for the panels so what I will do is just recess a solar panel not solar cells.. It is going to be a little spendy but I will also have a 30 amp trickle charger to charge my deep cycle so if I need to I can plug it in where I'm staying or if its crumby I can stay at a RV park the whole setup will run me 1000-1500 dollars but I'm setting mine up as an economical 1 person or couple
cross country road trip vehicle I will also have shelves along the inside a heater and a small sink so I can prep food that I can cook via the electric one burner stove
The reason I'm really interested in ecomodding is because I will save a ton of money if I can achieve 30-35 mpg compared to 20..