Can you load share with two different chargers

[abirozy]

Getting two chargers in my garage to charge a Tesla model s and an R1T. Thinking of getting a Tesla gen 3 and emporia for the Rivian. Both are able to load share.

1). Can you only load share with two of the same chargers or can you load share with two different chargers that allow for load sharing?

thanks

adam

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[SparkyR1t]

I am 99.9% sure Tesla wall connector can only communicate with other Tesla wall connectors. That also have to be the same generation of charger to communicate. I have two different generations of Tesla wall connectors and they will not talk together

 

[abirozy]

I am 99.9% sure Tesla wall connector can only communicate with other Tesla wall connectors. That also have to be the same generation of charger to communicate. I have two different generations of Tesla wall connectors and they will not talk together

Is one a gen 3? If so, how do you like it? My wife likes it just because it looks nice but does it work well?

 

[TimJim]

I have 2 wallbox chargers installed in my garage that can load share… although you would need a j1772 to Tesla adapter. Mine is currently charging a R1T and the other is for my wife’s future R1S. I think both chargers would have to be the same brand/model so the communication wire can determine how much power to send. With two Tesla chargers one would need a Tesla to j1772. Otherwise I know wallbox and I think juice box power share with identical chargers.

 

[Rousie13]

Getting two chargers in my garage to charge a Tesla model s and an R1T. Thinking of getting a Tesla gen 3 and emporia for the Rivian. Both are able to load share.

1). Can you only load share with two of the same chargers or can you load share with two different chargers that allow for load sharing?

thanks

adam

You can only load share with the same units. A Wallbox can not load share with a Tesla unit for example. So you either need to get two tesla units or two emporia units assuming both are able to load share like you say.

We currently have two Wallbox 40A units load sharing a 50A circuit. We are installing a sub panel in our basement (current box is full) and running a separate 60A circuit for a JuiceBox 48A unit that I have sitting in the garage right now.

 

[inconceivable]

I know this isn’t exactly what you were asking about, but figured I’d flag it as an option: I have a grizl-e duo. It is one EVSE that has 2 plugs and load shares between them. The obvious con is that you have 40 amps in total to share, but I haven’t had a problem with the power personally. The main pro is that it’s cheaper/potentially easier if you don’t have 2 EVSEs wired already or don’t have the space on your circuit box for 2.

You’d also need an adapter for your Tesla. I used my duo for my Tesla before I got the R1T and thought it worked well.

Good luck with whatever setup you choose!

 

[Grabs10]

Getting two chargers in my garage to charge a Tesla model s and an R1T. Thinking of getting a Tesla gen 3 and emporia for the Rivian. Both are able to load share.

1). Can you only load share with two of the same chargers or can you load share with two different chargers that allow for load sharing?

thanks

adam

Get 2 tesla gen 3’s imo. They wirelessly load share over their own signal…. No wire needed between chargers to load share and communicate with each other. Get one with the j1772 and one with the tesla plug. Each one of mine are on their own 60 amp breaker…. Lead charger will pull 48 amps and the secondary charger will pull 22 amps for a total of 70 amps. As the lead charger ramps down or finishes charging the secondary charger will ramp up to its peak 48 amps but never pull more than 70 amps combined or 48 amps each individual charger.

If you load share off the same 60 amp breaker the combined chargers can never pull more then 48 amps.

If you have panel capacity for EV charging of more then 48 amps then run each charger on its own breaker. Super easy to setup.

 

[abirozy]

Get 2 tesla gen 3’s imo. They wirelessly load share over their own signal…. No wire needed between chargers to load share and communicate with each other. Get one with the j1772 and one with the tesla plug. Each one of mine are on their own 60 amp breaker…. Lead charger will pull 48 amps and the secondary charger will pull 22 amps for a total of 70 amps. As the lead charger ramps down or finishes charging the secondary charger will ramp up to its peak 48 amps but never pull more than 70 amps combined or 48 amps each individual charger.

If you load share off the same 60 amp breaker the combined chargers can never pull more then 48 amps.

If you have panel capacity for EV charging of more then 48 amps then run each charger on its own breaker. Super easy to setup.

will both of those load share? For some reason i thought i read that the j1772 and the one with the proprietary will not load share? But that review was about 1 year old so maybe they have fixed that?

 

[abirozy]

You can only load share with the same units. A Wallbox can not load share with a Tesla unit for example. So you either need to get two tesla units or two emporia units assuming both are able to load share like you say.

We currently have two Wallbox 40A units load sharing a 50A circuit. We are installing a sub panel in our basement (current box is full) and running a separate 60A circuit for a JuiceBox 48A unit that I have sitting in the garage right now.

thanks

 

[Grabs10]

will both of those load share? For some reason i thought i read that the j1772 and the one with the proprietary will not load share? But that review was about 1 year old so maybe they have fixed that?

Yes they load share. Both are gen 3’s. I have the tesla connector charger set as the primary/lead charger. Combined they won’t pull more then 70 amps via my my own settings after doing my own load calcs on my 200amp panel. Both chargers are on their own 60 amp breakers in my situation…. The tesla charger being the lead it will take priority and charge at 48 amps leaving 22 amps available for the j1772 but I can control my model 3 charge rate via the tesla app and I can ramp my model 3 charging rate down and the j1772 will ramp up an equal amount, never exceeding 70 amps combined in my case and settings

I don’t have my Rivian yet but has worked well with various EV’s.

Biggest reason I went with 1 of each of Tesla gen 3 chargers is the load sharing capability, cost, simplicity, reliability, elegance and just the ease of use. I enjoy just pushing the button on the tesla charge plug and the charge door opening on the Tesla and just not a fan of using adapters on home charging solutions. Just another connection that electricity needs to travel through that I would rather avoid.

my install is all diy and I didn’t want to run a coms cable between chargers… they are on opposite garage walls in a 3 car garage so wireless communication between chargers for load sharing was also a must for me.

 

[abirozy]

Yes they load share. Both are gen 3’s. I have the tesla connector charger set as the primary/lead charger. Combined they won’t pull more then 70 amps via my my own settings after doing my own load calcs on my 200amp panel. Both chargers are on their own 60 amp breakers in my situation…. The tesla charger being the lead it will take priority and charge at 48 amps leaving 22 amps available for the j1772 but I can control my model 3 charge rate via the tesla app and I can ramp my model 3 charging rate down and the j1772 will ramp up an equal amount, never exceeding 70 amps combined in my case and settings

I don’t have my Rivian yet but has worked well with various EV’s.

Biggest reason I went with 1 of each of Tesla gen 3 chargers is the load sharing capability, cost, simplicity, reliability, elegance and just the ease of use. I enjoy just pushing the button on the tesla charge plug and the charge door opening on the Tesla and just not a fan of using adapters on home charging solutions. Just another connection that electricity needs to travel through that I would rather avoid.

Thanks. I had been leaning towards that but was unsure about the load sharing... that makes the choice a little easier.

 

[Grabs10]

Thanks. I had been leaning towards that but was unsure about the load sharing... that makes the choice a little easier.

You can load share up to 6 wall connectors with the gen 3 units in any connector configuration.…. 1 leader and 5 followers. Not sure of your situation on electric capacities but you can from my understanding install 2 onto one circuit breaker if you don’t have panel capacity. Combined the chargers would be limited to 48 amps. Based on you capacity and breaker size for each charger you can set the system combine capacity higher or lower then what I set mine at.

But I had empty slots and more then 48 amps of availability so each charger went on it’s own 60 amp breakers so the entire charge scheme could pull 70 amps combined based on my settings in the chargers load sharing and system limits I set.

https://www.tesla.com/support/gen-3-wall-connector-power-sharing

 

[abirozy]

You can load share up to 6 wall connectors with the gen 3 units in any connector configuration.…. 1 leader and 5 followers. Not sure of your situation on electric capacities but you can from my understanding install 2 onto one circuit breaker if you don’t have panel capacity. Combined the chargers would be limited to 48 amps. Based on you capacity you can set the system combine capacity higher or lower then what I set mine at.

But I had empty slots and more then 48 amps of availability so each charger went on it’s own 60 amp breakers so the entire charge scheme could pull 70 amps combined based on my settings in the chargers load sharing and system limits I set.

https://www.tesla.com/support/gen-3-wall-connector-power-sharing

I will ask the electrician when i get my solar installed as they are putting the outlets in the garage. As it is, i am going to see if they can hardwire the chargers for me vs just putting in outlets.

I am getting a 13kw solar system and having them upgrade my panel to a 200Amp panel. I am not sure how extra capacity I will have with the solar system and two chargers.

 

[Grabs10]

I will ask the electrician when i get my solar installed as they are putting the outlets in the garage. As it is, i am going to see if they can hardwire the chargers for me vs just putting in outlets.

I am getting a 13kw solar system and having them upgrade my panel to a 200Amp panel. I am not sure how extra capacity I will have with the solar system and two chargers.

I’m not a 100% if Tesla offers chargers that plug in , and don’t think they do so you would be stuck having to have the hardwired chargers installed if you want tesla wall connectors. Electrician should be able to do load calcs to see what you have available on capacity. Many may not be aware of the load sharing capabilities and limits that can be set within the tesla chargers. Depending on you electricians knowledge he may tell you that you have 75 amps of capacity and since the charger would use a 60 amp breaker you only have enough capacity for 1 charger when in fact you may have enough slots for 6 individual breakers load sharing EV chargers in your panel. The EV charging system capacity would just need to be set to the capacity available and all the chargers linked up as followers. Solar doesn’t add and load to a panel…. May just take up a breaker spot in the panel depending on how it’s tied to the grid. My solar I installed is tied to the load side mains of my meter so no breakers in my main panel is needed. I would ask you electrician what you load calcs are currently and what will be available after the 200 amp upgrade

Congrats on solar. It’s exciting to produce your own power

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