Had a couple of grid glitches today, Powerwalls worked as expected. Some lights blinked and my computer that is not on UPS reported power issues and rebooted. Ting reported at least one of the issues as brownout with voltage dropping to 60V. Despite the weather the photovoltaic systems managed to eek 26.9 kWh today.
Thats good news at least. Glad they worked as expected this time.