Submitted by brooklynrab on February 2, 2014
One of those, "how many angels can you fit on the head of a pin" questions just came up in my house. We are in the process of ordering a P85 now (won't bore you with the logistical details) and am running the line for the charger. My wife asked, "What if we lose power (which we do about once a month)"? I said, "we can always use our emergency generator to charge the Tesla" (generator is a propane driven, 8000 watt peak portable -- not a standby -- with the same nema 14-50 output connector that the Tesla uses). This is one of those $1,000 Home Depot jobs that I connect up to a transfer switch on my house when the power goes down.
Question: if I need to do so during an outage, is it safe to connect the car charger directly to the generator output to charge the car? I don't know what type of surge suppression or voltage stability the generator provides.
Separately (as long as I am asking), does anyone know if there has been any talk about being able to use the Tesla as a power source in an emergency (i.e., plugging it into my transfer panel and using it as the power source, instead of a generator)? Not something I am thinking of, but just curious.