Often yes on a 200-amp service, after a load calculation — and more often if the two chargers share a listed load-management scheme so they cannot both draw full current at once. Two independent 32-amp chargers are 15.36 kW when they coincide; two 48-amp wall connectors are 23.04 kW. That is a lot of continuous load, but 200 amps is a large service. It is not automatic on an all-electric house with backup heat strips.
Educational optional-method walk-through of the light all-gas 1,800 ft² house with two 32 A chargers:
| Step (2023-style optional method, educational) | Result |
|---|---|
| General lighting at 3 VA/ft² | 5,400 VA |
| Small-appliance and laundry circuits at 1,500 VA each | 4,500 VA |
| General load including listed nameplates and EVSE | 25,260 VA |
| First 10 kVA at 100%, remainder at 40% | 16,104 VA |
| Larger of the heating or cooling values entered, at 100% | 4,000 VA |
| Calculated load | 20,104 VA · 83.8 A at 240 V |
| Compared with this walk-through’s service rating | 83.8 A is under a 200 A rating by 116.2 A |
Educational walk-through of the optional dwelling-unit method structure in NEC 2023 220.82. Not a permit calculation. 220.82(C) heating/cooling selections can be more involved than “the larger of two numbers,” especially with heat-pump backup strips.
That example is about 83.8 A. Two 48 A chargers on the same light house calculate to about 96.6 A. A heavier combination — two 32 A chargers, a 12 kVA range, a 5,400 VA dryer example, and 10 kVA of heating — is about 137.8 A, still under 200 A in this simplified walk-through, but no longer a half-empty service. Measured winter or summer peak may tell a different story. Put both chargers on one load sheet in the calculator, and ask the installer about a listed sharing device if overnight miles do not require two full-current sessions at once.
This is not a permit calculation, a utility approval, or a substitute for a licensed electrician, HVAC contractor, or the authority having jurisdiction. Panel Headroom is an independent educational site. It is not a utility, a certification body, or a contractor. Electrical and generator work that is done incorrectly can cause fire, shock, or carbon monoxide poisoning. Use the adopted electrical code and manufacturer instructions; pull permits where required.