Installing One or Multiple Tesla Chargers--what you need to know!
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- Опубліковано 15 бер 2020
- This is me sharing what I learned when I installed my first Tesla home charger and then what I found out when adding a second one. Hopefully valuable information so you can avoid the mistakes I made.
This video is also a good resource on load sharing for multiple Tesla chargers:
www.tesla.com/support/load-sh... - Навчання та стиль
Thanks for the info.
I had no idea Mulder was a Tesla fan.
I’ll take that as a compliment I guess 🤣
So now with the GEN 3 chargers no more hard wire connection is needed between chargers, its all WIFI. So i.e. you do not need to daisy the power or Communication wire to each new charger from the master charger. You can simply just add a breaker for every new charger and go! Daisy chaining chargers will only apply if you are placing them in the same general area.
That sounds good for the communication part of it, but it is nice if 2 or 3 chargers can share 100 amps instead of needing 60amp breaker for each. Most homes don’t have 120 or 180 amps to spare so it’s nice if they can share 100.
Just to confirm, I do not need to run the communication wire between two Tesla wall connectors generation 3 just Daisy or separate circuit breaker, which I am choosing to Daisy to use the same circuit. is this correct?
@@frankSANDIEGO No… if you daisy the circuit then you just cut it in half the output.
This is a great summary. Unfortunately tesla has a Gen 2 & a Gen 3 that both can “daisy chain “ but not with mixed generations.
Also, Tesla released a Gen 2 with native J1772 so you can share the single breaker with a mix of Tesla and everything else J1772.
Perplexing, but it’s been sold out and not restocked and still no v3 J1772.
The J1772 had the advantage that every Tesla includes the J1772 adapter
Jim, thanks for the updated info--this video is 2 years old now, so I'm sure your comment will be helpful to people.
Okay. Thanks for quick reply. I am currently planning to install a second gen 2 tesla wall connector with my 60 amp breaker for a second tesla. I was afraid that my plan wouldn’t work. Thanks again.
TIP: Two 60 amp breakers does not mean your using 120 amps. However you do need to do the calculations or work with an electrician to do the calculations on how to upgrade and if your upgrading a little - you may as well go the extra mile and upgrade plenty because in the future if you need to call out the electrician again it's gonna cost several hundred more for a new job.
I feel like it's easy to get carried away with estimating EV charging needs. You might need to share a 100A circuit if you're each driving over a hundred miles each day on less efficient cars, like a Model X.
But otherwise, it is just fine to have 2 car chargers sharing a 60A circuit.
You're right it's fine 90% of the time, because we're typically just charging overnight. But there are more times when you might think that I need two cars to charge asap and the difference is helpful. For the small cost difference it's nice to have the peace of mind. Also, I have 3-4 Teslas sharing those 2 chargers so that makes a difference. And who knows what the future holds as far as adding more chargers. In my mind it's an easy decision, benefit far out weighs the cost.
What size wire did you use for your 100 amp breaker? I assume #6 wire was too small. Thanks for the great video!
Side question: How do you track how much power comes from solar vs. utility?
I can track it in the Tesla to a certain extend, but because I have Enphase micro inverters I can track very detailed info through my enphase account online-very detailed, even by specific panels. Ultimately the utility tells me too
Thanks for the video. Getting our first Tesla and wondering how to setup for future Teslas. My plan is 100A subpanel to garage, then two 50A (6-3 wire) circuits off subpanel, one for each car. Do you have separate circuits and breakers for each Tesla receptacle OR did you run a single circuit to service multiple receptacles?
You only need one 100 amp circuit run to your first charger. Then future chargers can share that same circuit with a communications line run between for them to communicate with each other as far as which chargers need more power.
Thanks. Great info. Not sure why you had to re-wire for 100 amp breaker? I think you could have stayed with the 60 amp, #6 awg wiring to do power sharing with the two wall connectors. Two cars wouldn’t charge as fast at same time (22 miles I think) as the 100 amp. But, still pretty good?
Gregory Cooper you’re right I could have stayed with the 60 amp, and they could have shared that power fine. It would have just been a little slower and I wanted to maximize it. Thanks
Are the communication wires a must, or can they wirelessly communicate?
They were necessary when I installed these, but that was 3 years ago. I know they have new versions of these chargers now. Makes sense if they did make that change, but I have not heard that
@@ModernArtisan by the way, can I Daisy chain two GEN 3 wall connectors or does it need a separate circuit?