Multiple powerwalls

Installing

Leader / Follower

The Leader Powerwall 3 is the unit connected to the Backup Gateway / Backup Switch via the 12V/CAN wiring. All other units are Followers.

Any Powerwall 3 can be designated as the Leader as long as it is the unit connected to the Backup Gateway / Backup Switch - part number does not matter.

Leader

Only one unit will be connected to the 12 V/CAN of the islanding device.

Important to note: the unit with this connection will be considered the Leader unit, which will matter during the commissioning steps.

This example shows four Powerwall 3 units, each with their own breaker.

The Leader is connected to the Backup Gateway.
Communication is daisy-chained from each Powerwall 3 to the next.
Each unit is connected to a single system shutdown switch.

Multiple Powerwall Example

NOTE: Internet connections for Powerwall 3 Leader units must be connected via WI-FI or Ethernet. When connecting the Leader to a customer's router, the Powerwall 3 can only be connected at either end of the chain. Connection in the middle of the chain is not allowed

Leader Powerwall 3 Connected to Customer Router via Wi-Fi

The Leader Powerwall 3 is the unit connected to the Backup Gateway / Backup Switch via the 12V/CAN wiring. All other units are Followers connected via the ethernet.

System Shutdown Switch for Multiple Powerwall 3

REMINDER: When installing a System Shutdown Switch, connect each Powerwall 3 to a dedicated electrical contact of the switch. Ensure the installed System Shutdown Switch has enough electrical contacts for the number of units installed.

Here are examples for the correct (and incorrect) wiring methods for the rapid shutdown switch

TESLA NOTE of Caution: The System Shutdown Switch will not function properly when wired in the configurations shown with the red "X".

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