[fsckboy]

the 220 circuit to your dryer and the 220 circuit to your electric stove do not have the capacity to add more items to the wiring (the stove is a much higher capacity circuit btw). Yes, it's true that you wouldn't need to use your car charger while you use your appliances, but that's not how residential building code circuits work. I suppose there must be or at least could be a solution to switch the power over? But you can't just go plugging it in and remain within code.

my brother does a lot of stuff with power tools, and whenever he moves he has to have extra lines brought in by the power company. While houses frequently have 220 coming in, they don't have 3-phase.