I think in most states within the US, generation is a hard problem to solve because of state regulation. There are some outliers (Texas) but in general its hard to just start your own power plant thats connected to the grid.

> There are some outliers (Texas) but in general its hard to just start your own power plant thats connected to the grid.

What if it's not and solely powered by solar (just wondering - Megachargers most likely need help from the grid).

Yep. Kinda like manufacturing cars is highly regulated. Or selling them without local dealerships. Or manufacturing industrial warehouse-sized batteries. Or building and operating an international network of charging stations.

They have a well-known solar roof program, which is generation, but home-scale.

Maybe a huge charging station which has to have large buffer batteries anyway would benefit from a large solar-panel field nearby / above it, if land price is acceptable. That would be a natural extension of the solar roof business.