This is obviously not something I plan to DIY, but just curious if it is feasible. I'm in a third floor condo and wondering if I'd be able to setup an EV charger by my parking, which happens to be near the main electric supply for the building. My plan would be to have a box with a 240V plug, like a NEMA 14-30, that I could plug a mobile J1772 in to when needed.
As you can see, there are meters for 6 residential units. I'm on the bottom left of those, with one 100A breaker off the meter in the box just to the left. Ideally, I'd run a 32 amp charger, but could definitely get by with 24 amps. Hot water is provided by the building, so interior electric needs are minimal. A 30 amp breaker for the dryer, 30 amp for the stove. I have no problem no charging the car if we happen to be using those simulanteously.
Let's assume I get buy in from the HOA. Don't want to start the conversation if it's not going to work anyway.
Best Answer
You can tee off it, with 100A rated wire (3Cu/1Al).
Also, the run to the apartment will have to be upgraded to that. It is no longer entitled to the 83% "whole service" derate, since it's no longer carrying tge whole service.
And then, carry it over to a 100A subpanel. There, you have appropriate breakers for your charger.