It depends on your current panel capacity and existing load. A Level 2 EV charger requires a dedicated 240V, 50A circuit — drawing up to 9,600 watts. Homes with 200A service and available panel capacity can usually add one EV charger without an upgrade. Homes with 100A service or heavily loaded 200A panels will likely need either a panel upgrade or a smart charger with load management. RainFire Builders performs a load calculation before every EV charger installation to confirm capacity and advise on upgrade needs. For new construction, we rough-in a 50A EV circuit in the garage as a standard recommendation regardless of whether the client currently owns an EV.