Yes, the biggest issue is grid support and energy production. In total, if all daily driving was replaces with EVs overnight, it would increase electricity dema

Yes, the biggest issue is grid support and energy production. In total, if all daily driving was replaces with EVs overnight, it would increase electricity demand by ~25% total (or ~80% in residential use). Still, expanding the grid is a no-brainer, because everyone who comes off petrochemicals are going to need electrification. So, if you can't expand the grid (slowly over time) you have bigger problems.