The cost is an separate breaker and circuit (possibly requiring a conduit) to each HPWC though No. Thus 3 Gen 3 HPWC connected to 3 60A circuit breakers in a 125 A panel will actually give you more charging capacity than 3 Gen 2 HPWC connected to a 100 A breaker (the biggest allowable) in a 125 A subpanel. This assumes the Gen 3 sharing algorithm is the same as the Gen 2 which gives the first car what it asks for and the others whatever is left over. But if I plug in a 2nd 3 set for 48 A it will only get 4 A because the capacity of the system is 0.8*125 = 100A. If I plug in my 3 also set for 48 amps it will also get 48A. When I plug in my X set for 72 amps it will now get 48 A.
Tesla wall connector charge rate install#
Starting from scratch and for purposes of illustration lets say I install 125 A sub panel with three 60 A breakers each going to a Gen 3 charger. Now were I to buy a 3 and install another Gen 2 charger (if I could get one) on that same circuit, set up my X to charge at 72 A and then come along with my 3, set it for 48A and plug it in too it would only get 8 amps until the X was finished or I lowered its charging rate. In fact I got some arched eyebrows when I installed a 100 A circuit in a 200 A panel in a house with 400 A service. No, you aren't likely to have installed a 100 A charging circuit in a house with 200 A service.
Presumably the people that own those cars already have HPWC installed with those programmed for their car and service. There are still Teslas out there that charge at 72A and fewer still that charge at 80. Today no one can buy a Tesla that charges faster than 48A. In any case time will tell as to whether this will catch on but I certainly wouldn't put out $4 K for one of these now as it is not compatible with any vehicle I own or plan to own and even if it were it would be too slow. I've guessed at what's inside the Quasar box (two bridges interconnected with a high frequency, and thus physically small, transformer which is bidirectional depending on how you gate the transistors) and think its pretty cool. And, as I said in an earlier post, I'd think that's what Tesla would want me to do which is why I don't think Tesla will be modifying their design to allow this (though it wouldn't take much effort) any time soon.ĭon't get me wrong.
Tesla wall connector charge rate how to#
If I needed to load level with batteries I'd install PowerWalls (ans probably would anyway if I could figure out where to put them and how to interface with my generator). The house is there to keep the car charged and ready to roll at any time it needs to roll. I can see it being used in microgrids but I just can't convince myself that I would ever use it. Yes, I believe this technology is being used on an experimental basis is Holland and Asia. It would seem that a battery that charges during the night and discharges every day for load leveling and is, in addition, subject to the charge and discharge cycles associated with driving is going to endure more cycles than a car that is only driven. The comment was based on the fact that with most battery chemistries the thing that limits life in the number of charge/discharge cycles.
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