We have a very weak grid connection, I can't charge more than 2Kw at night, so I choose to charge it during the day at 5.3Kw
I commute every 2-3 weeks to Chiang <ai where my daughters go to University, we have a 7.2Kw charging point there but it's not solar.
I have only ever charged on one trip at any other public or private CS, obviously that is not solar either.
90% of my charging is from my solar system during the day here in Chiang Rai.
I didn't buy EV's or Solar for the greenness they may have, it's purely economic for solar and mostly pleasure for EV, I love the way they drive.