Many years ago, I wrote extensively on this web site/blog about the many intricacies and complexities of what I call "solar offset" charging of an electric vehicle vs. directly filling up with electricity that has been/is being produced directly by a (home rooftop) solar system connected to the same electrical box into which an EV charger and/or the wall-socket into which you're plugging your EV into.
I've been driving a leased 2017 Chevy Bolt LT since Sept. 2017. It's been a great little car: Zippy, fun, quiet, fuel efficient. It's got plenty of range (238 miles), including enough range for a 2,400-mile round-trip road trip I did with my teen daughters from Denver to Santa Barbara, Calif. and back in the Summer of 2018.
Solar charged-driving from Christof Demont-Heinrich I put together a PowerPoint on solar-charged driving to present at my Unitarian Universalist...
You actually don't need that many solar panels on your home, garage etc. to produce enough electricity to fuel your electric car 100 percent with solar.