Wow, I did a bit of research and some basic math and found out that the 50 AMP charger for a Tesla draws 40 amps at 240 volts (10 kw). Or to put it another way, 80 percent of the maximum available power at a 50 amp pedestal. Furthermore, a complete charge at that rate would take up to 7 hours. NEC allows 7 50 Amp pedestals per 200 amp service loop. 5 Teslas charging on that loop would take 100 percent of the available power for that entire loop, leaving the 7 RVs completely without power.
A complete charge for a Tesla would cost us around $7.00 (10 cents per kwh). It is our experience that a fully electric coach costs us around $5.00 per day in electrical costs, so the Tesla is nearly a 50 percent greater energy hog than a 45 foot Prevost (provided the Tesla only needed one charge that day. It is entirely possible that with it's 250 mile range a person could run it dry in the morning after charging all night and need another full recharge that same day). No way electric cars can share the current electrical grids in RV parks.
