Forum Discussion
valhalla360
Jul 21, 2022Navigator
Reisender wrote:
Maybe. But I can tell you from many days of EV RV camping that it’s unusual to get more than 25 or 30 kWh from a park pedestal on an overnight stay at a campground. And that is only if our trailer is unplugged. We have hydronic heat and hot water in our little trailer which means both heat and hot water use either one or two elements (selectable) to operate (or propane of course). Between that and the fridge I’m pretty sure it’s drawing close to 24 amps or roughly the same as the car. The only difference is if there is a voltage drop in the park the trailer keeps drawing max whereas the car senses the voltage drop and automatically tapers current to either 18 amps (at 113 volts) or 12 amps (at 109 volts) ish. As soon as that happens we get a text indicating charging is reduced because of low voltage. It does the same thing if it senses the receptacle temperature is rising because of a poor connection.
Jmho but if there is a difference in cost it’s probably closer to a couple or three bucks. Really we have never checked. Just a guess.
Might be different on a 50 amp site but we have never camped on one yet.
As you show, the EVs will try to max out the supply. Even at the reduced amperage at 113v, a 20hr stay would be over 40kwh. Assuming 24amps at 120v, that's up around 58kwh.
Right now when it's a stray EV once a week, most owners won't even understand. If it ever becomes a significant percentage of the vehicles, expect park owners to get frustrated. Even if it's only $3...if you have 50 EVs charging every night, that's over $50k in extra electric consumption per year.
On a 50amp pedestal, it simply scales up. Also, most 50amp pedestals have both a 50amp and a 30amp...do the EV owners plug the RV into one and the EV into the other? If it's a small EV being pulled by a MH, the batteries may reach full and stop charging but if the tow vehicle is an EV, Say the new F150, pulling 120-130kwh is well within the capability of a 50amp outlet given an overnight stop.
Overloading the park system is a separate issue.
Of course, if it's a gradual shift, expect a premium charge for people camping with EVs to be gradually implemented or a prohibition against EV charging.
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