EV chargers run $500-$1,500 installed depending on the electrical work. Bigger breaker = faster charging = more panel capacity required. Plug-in hybrid? A 30-40A charger is plenty (or just use the dryer outlet). Full EV? Go 50-70A — you'll want the speed.
Two smart moves: bundle the charger with your solar install so it rides your financing and program benefits, and tell your designer about the EV even if it's 18 months away — charging at night means more battery; charging midday means more solar. An EV can double a home's electricity usage. Surprise true-up bills love an unplanned EV.