I have a 100A panel, everything in my townhouse runs on electricity. Consulted an electrician, to install a Nema 14-50, I will need a DCC. Whole thing including licencing and inspection it's going to be close to $2000. I know charging an EV draws a constant current, so they need something to make sure when all the appliances are running, the main breaker wouldn't trip. Like many people posted in this thread, I'm only going to start charging the car at night when nothing else is on anyways, so I decided to installed a 40A Nema 6-50 myself. I will pay the electrician to inspect my work. As long as I use the proper wiring and high quality parts, I don't think I will burn my house down.