I came up with the following. 3 600w/800w panels which generate roughly 15km of range on an average eu day, would fit on top.
this is southpark underpants gnome level planning, i like it :)
- buy an ev and solar panels
- ?
- profit!
for 2... you're going to need to need to figure out how to trickle charge a massive EV battery, you'll need to disassemble the charging infrastructure onboard the car, redesign it from scratch and build it. You'll probably need to reprogram the onboard computer as well as it will be all integrated.
OR
carry around several extra heavy 200AHr batteries in the back of the van charging off the solar, install an inverter and connect an 8A 220V charger to that :)
I'd suggest an alternative lazy approach, rather them several years learning to be an electrical engineer. Install panels on your roof/balcony at home and feed that into the house/grid and then just charge the car on an off peak tariff.
let us know how you go!