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