Just a quick pile on to the OP. You do not have to bypass the charger if you have a generator. It is a function (as many are stating here) of how large your generator is vs the optimal electrical load in your house. The Tesla WC will draw just under 10 kilowatts at 40 amps / 240 volts so unless you have a BAG (big a$$ generator) you will want to use a PMM or Power Management Module (Generac term/product) that cuts power to the WC when running on the generator. If you have an electric dryer and electric stove that you will operate when on the generator and charging your car, you could be looking at 20 kilowatts between those three loads alone then add in furnace/AC and then general operating loads. As a rule of thumb (and IMHO) I would say that if you have a generator larger than 22 kilowatts then probably a bypass not needed but if less, recommended. We have an 11 kW Generac that runs on natural gas and I have a bypass relay on the dryer and WC (1600 sq ft home) and the unit/configuration works perfectly (gas stove, gas furnace, gas water heater, gas fireplace and gas BBQ !). Just another perspective to share.
