Shopping yesterday at South Coast Plaza and checked out the EV charging slots. They offer four Charge Point charging slots and one HPWC. 2 hours free charging, so I plugged in. Odd, I thought, that I'm charging at 40A but at only 25 miles per hour rate instead of Tesla's claimed 29. Then I noticed the voltage was only 204V. Of course, a big place like the would be on three-phase wiring with 208V per phase and way out in the parking structure line loss could easily bring that down 2% to 204V. Not complaining, mind you. I added 50 miles while buying an iPhone and some books. That's a pretty good deal.