Optional: Configure Powerwall 3 Maximum Power / Current Output

The default maximum power / current output for Powerwall 3 is 11.5 kW / 48 A. Beginning with software version 24.20, the power / current output can be configured to one of the following limits during device setup, except where it is limited by the local grid code requirements:


Nominal AC Output Power at 230 V (kW)⁴	5.8	7.68	10	11.5 (default)	15.4
Maximum Apparent Power (kVA)	5.8	7.68	10	11.5	15.4
Maximum Continuous Current (A)	24	32	41.7	48	64
Overcurrent Protection Device (A)	30	40	60	60	80

This feature can be used for the following purposes:

Compliance with utility-imposed requirements on maximum inverter power (for instance transformer capacity limits or interconnection requirements)
Qualification for subsidies or economic benefits (for instance NEM integrity or SGIP)
Replacing a Powerwall 2, Powerwall+, or third party solar inverter with a Powerwall 3

Configuring a Power / Current Output

Note

When installing Powerwall 3, select the appropriate Powerwall 3 breaker size depending on the desired power output (see the table above).

If the system is running, select Stop System.
Select System > Devices > Powerwall 3 > Max Current Output.
Select the desired maximum current / power output from the dropdown menu.
Select Confirm Max Output > Reduce Current Output.
Note
Once the setting has been confirmed, it cannot be changed by the installer. Contact Tesla Support if the setting must be changed.
Document the configured maximum current output on the Powerwall 3 product label (use a paint pen to mark the configured value).

Optional: Enabling 15.4 kW Off-grid Power Output

Powerwall 3 can be configured to provide 15.4 kW of power when the system is off-grid and is producing sufficient solar. The following are required to enable this feature:

Powerwall 3 has been installed with an 80 A breaker and appropriately sized conductors
Powerwall 3 has been configured with a max current output of 11.5 kW (on-grid)
Powerwall 3 is on software version 24.36 or later

Note

This maximum power should be reflected in the site’s electrical drawing when used.

To enable 15.4 kW off-grid power output:

If the system is running, select Stop System.
Select System > Devices > Powerwall 3 > Max Current Output.
Toggle ON Enable 64A (15.4 kW) Off-Grid.
Note
This toggle will only be available when Max Current Output is set to 48A (11.5 kW) - Default.
Note
Once the setting has been confirmed, it cannot be changed by the installer. Contact Tesla Support if the setting must be changed.
Document the configured maximum current output and 15.4 kW off-grid power output on the Powerwall 3 product label (use a paint pen to mark the configured value).