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Right, wifi only. I'd be a little surprised if the NEC would need to get involved since each charger is provisioned to the max of the wiring/breaker that its connected to. Worst case if the HPWC screws up the current sharing is that the main breaker trips. Clearly you never want that to happen, but its not like your house is gonna burn down.Load sharing was supposed to work over WiFi without needing direct connection right? If so, they are likely waiting for NEC to support this.
If each HPWC is connected to a properly sized breaker and wiring then why do you need to load share? For the breaker to be properly sized that takes into account being a constant load and the rest of your electrical. Pretty sure constant loads count 1:1 in your main panel unlike periodic loads which count as a partial percentage. For example, if you have 100A service and tried to put 2x 60A breakers for HPWCs I don’t think that would pass code. If you used both it would pull too much and trip your main breaker. Code is designed to prevent this from happening.Right, wifi only. I'd be a little surprised if the NEC would need to get involved since each charger is provisioned to the max of the wiring/breaker that its connected to. Worst case if the HPWC screws up the current sharing is that the main breaker trips. Clearly you never want that to happen, but its not like your house is gonna burn down.
I'm pretty shocked that they haven't released the sharing FW yet, but I guess they've been too busy with overheating issues.
The Gen3 manual says each one gets its own circuit and breaker.Isn’t the whole point of load sharing being able to install 2 or more HPWCs on one circuit (1 breaker)?
I think the load sharing is ideal for scenarios where there are a ton of EVSEs, but wiring costs or the utility feed, caps the max amps.If each HPWC is connected to a properly sized breaker and wiring then why do you need to load share? For the breaker to be properly sized that takes into account being a constant load and the rest of your electrical. Pretty sure constant loads count 1:1 in your main panel unlike periodic loads which count as a partial percentage. For example, if you have 100A service and tried to put 2x 60A breakers for HPWCs I don’t think that would pass code. If you used both it would pull too much and trip your main breaker. Code is designed to prevent this from happening.
Isn’t the whole point of load sharing being able to install 2 or more HPWCs on one circuit (1 breaker)?
Because they're not each on their own circuit in the sharing setup.If each HPWC is connected to a properly sized breaker and wiring then why do you need to load share?
Not quite. Breaker: yes. Circuit: no.The Gen3 manual says each one gets its own circuit and breaker.
You read about it on TMC, or you connect to the HPWC via its wifi and check it.Am also waiting for the load sharing FW update. Out of curiosity, how does Tesla communicate when a wall connector firmware update has been made?
That's great news! Thanks for the update.Passing on what I just heard from my favorite electrician who installs many Tesla Wall Connectors (TWC).
He just received the firmware to enable power load sharing between two TWC Gen 3 models. File was sent to him (and other installers) from Tesla in an email attachment a few days ago, not available to public over the air yet.
He setup load sharing on a new pair of TWC Gen 3, communicates via wireless only, no control wires required. Supports up to four TWC Gen 3 at a time right now, and 2 to 4 can power load share up to a single 100 Amp circuit. Each TWC Gen 3 still only outputs 48 Amps each max so won't boost older Model S with dual-chargers. His working theory is that a set of load sharing TWC Gen 3 will replace old/existing installs of paired Tesla destination chargers.
I don't personally have a TWC Gen 3, but I have a pair of load sharing TWC Gen 2.
Power sharing is only available on Wall Connector firmware versions 21.18.1 or higher. Download the latest firmware file.Which FW version supports it? I checked and my chargers are on V1.4.4 (0).