I don't know that I would use Telsa as an example. Sure, they are replacing fossil fuels with renewables, but I see this as trading one dirty commodity for another. Lithium mining is environmentally damaging and the impact will likely get worse as demand increases. So maybe a step in the right direction, but definitely not a true solution.
Tesla is actually a good example assuming that you believe that lithium mining is better than coal mining or at least an equivalent problem. Tesla's utility-level batteries (MegaPack) make wind and solar projects more economically feasible since any excess wind can be stored instead of being sold at negative rates when its not being used. These batteries will allow the replacement of many coal-powered generator plant…
That's not necessarily true about the infrastructure. The estimate I saw said if all the gas cars were replaced with electric ones then the infrastructure would have to double or triple depending on how much off-grid equipment is adopted. I know my house would need an upgraded connection to handle a 50amp charger. I'd probably need a whole extra line and panel if we needed to charge 2 or three cars at once.