It always amazes me how far solar has come.
Back when I started dwelling, most folks had 100w of solar, maybe 200 if you were wealthy. The most you could physically fit on a van roof was maybe 3-400w.
Now, 300w single panels are available that don't cost much more than what I paid for my 100w years ago. I routinely see people today with 600w systems, and even up to 1000-1200w. And now we even have lithium batteries, which are lighter, hold more usable power, and can keep a partial charge. The only drawback for lithiums is the price, and once that goes down to AGM levels it will change the whole ballgame.
(And despite all this, I still get along with my 100w system, since it does everything I need it to do.)