A friend of mine has a dozen panels in central France and pretty much provides all the energy for his Kia eNiro. He reckons the payback time is under five years.

This is exactly what I meant. Thanks.

Panels on the rooftop of the car...

When did I say on the rooftop of a car? There’s level 1 that could plug into an house outlet and level 2 from 220v. House charges the car and solar provides power to the house.