OK. I am a Naval Architect, not an Electrical engineer. Besides the obvious... "72 Amp charger can get you to charge faster", why do I need a 72 Amp charger? Why does Tesla say that 110 and 220 charge times wont change? Is that because I wont pull more than 48 amps off the basic home electrical setup? Can I even get that many amps out of a residential setup? If the normal residential setup is limited, is the typical destination charger at restaurants, hotels, etc, high amperage? I don't have a whole lot of options in the Norfolk VA area. I will install a home charger. Any advice is very much welcome!