Powerwall 2: backup function in a 3 phases installation

[Alexandre Lechenne]

Submitted by alechenne on May 18, 2020
Hello everybody,

I recently installed 3 Powerwall2 batteries with the Powerwall Gateway. The electrical installation is using 3 phases. I installed one Powerwall on each phase. The Gateway and the Powerwall have the lastes firmwares. When I run the setup in installer mode/level, I can only check the backup functionnality for 1 phase, and not for all the 3 phases (see screenshot). Has anybody an idea how to bypass this limitation and/or why there is such limitation?

Thanks in advance for your support.

Kind regards

[Alexandre Lechenne]

According to the DACH support from Tesla, it seems that it's impossible to activate the backup feature of the Powerwall2 for each phase, even if you have 1 Powerball connected to each phase. I asked to know the deep motivition of this limitation (electric or electronic, electrical regulations or software functionnality limitstion) and will post here when I'll get the detailled reply.

Kind regards