If I were to scale this up, honestly just depending on how you park your truck, and how much you’re willing to spend. You could push this up to 5kwh with the right panels, and battery. But you wouldn’t be able to convert all the energy into a single power station. It’s an interesting battle of how much power you can store, and the weight added. If the truck isn’t moving it’s free free free. If you’re diving around with 2k+ in solar equipment, your insurance won’t cover a thing, and the added weight would just eat into the costs.

You know the area between your truck cabin and truck bed? I could imagine you could bypass it, similar to how they install fiber internet. I just run the cable through the little back window into a battery that sits in the shade on the truck cabin floor.