A summary from my own experience, but without the taudry physics lesson from the video. This is based on my wife and I doing most of our driving in our EV, and us also having decentralized solar for the home (including charging the EV).
Any one of the solar panels for my home dwarfs the top of my car, but we'll pretend we can fit one solar panel onto the roof.
How much power coming in? Assume 400W panel (my solar panels are actually 330W, but they're older). In June here in Sweet Home Alabama I get 6.5 peak solar hours per day on average. 6.5 X 330W = 2.1kWh, even if it was in the sun all day on a June day. So how many miles will 2.1kWh get? I average 3.9 miles per kWh (including running the AC, and sometimes night driving so running the headlights, etc.). 2.1kWh X 3.9 miles/kWh = 8 miles per day.
So 8 miles per day --- on the best day --- without parking in a parking deck, or driving in shadows next to buildings, or driving on the highways with tractor trailer trucks sometimes blocking the sun, etc. Like I said, my solar panel dwarfs the real roof. The real number would probably be closer to 4 miles per day in a summer month in Alabama, less than that in other months or less sunnier climates. And that's not getting into the solar panel getting dirty from being on the road (my home solar panels are cleaned only once or twice per year, but they're not riding around getting dirty like my cars).
What exactly does “taudry” mean ?