I do believe all the coming plug in cars are gonna be the "nail in the coffin" with regards to our ability to supply electricity to everyone reliably .
NaH, Our electrical company is trying to give away electricity with their charging stations. You can come and charge in 10 minutes for free. Yet I will pay for gas because of the short range. Even 10 minute charges are more time than filling up your tank. Electric will not become popular till they bring fuel cells on market, and that won't happen till they build fusion power plants, at least a decade away.