Tesla Solar is a dud, had to be saved by Tesla using SpaceX money. Or rather Elon's cousin had to. PV tech is solidly in Chinese hands by now, and getting cheaper every year, Tesla has nothing to do with it. Same for powerwalls.

What Tesla figures out so, was that charging infrastructure was the early EV winner, nobody else did that. Whether Tesla's netwirk is still the largest in the world, no idea.