I had that same thought, I was wanting to put the rails on the topper when I get it made then get some sort of luggage rack that I can put the solar cells in to provide some protection and a mounting point then wire a LiFePo4 battery system (~4-5+ KWh depending on cost) to it and then have both 12V and 120V outlets. I would probably want to have a couple more solar panels that I could put out when the truck is parked for camping and such.One day I am gonna get a solar panel on the roof of my topper and install a battery and inverter in the bedside void outside the cubby. Then put outlets in the cubby.
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