Optional: High Impedance Mode

High Impedance Mode can be toggled on to improve system performance on sites with high grid impedance.

Warning IconA warning icon, calling your attention to a possibly risky situation
CAUTION
The installer is still responsible for ensuring that the wiring in the home is safe and installed according to local regulations.

Determine Whether High Impedance Mode is Needed

Select Do I need this? if unsure whether to toggle on High Impedance Mode. Tesla One will detect the number of Powerwalls on-site and ask whether the Electric Service Size is above or below a certain threshold to determine whether to recommend High Impedance Mode.