Netzero - Health Monitoring

Introduction

Netzero provides notifications about issues with your solar production, Powerwall operation, or Powerwall health. Current alerts include:

1. Very low or no solar production in the last 24 hours.
2. Very low or no solar production for an individual solar string of panels (group of panels connected in series).
3. Powerwall capacity degradation exceeding 30%.
4. One or more Powerwalls not charging or discharging.
5. Grid outage or system off-grid.
6. Powerwall firmware version updated.
7. Powerwall calibration in progress: the system is undergoing routine calibration for charge level accuracy and battery performance. During calibration, the Powerwall may charge or discharge in unexpected ways.
8. System issues reported by the system itself, such as a Powerwall breaker opening, a grid protection trip, or a meter losing communication.

System alerts

The system continuously reports diagnostic codes for its own components: the controller, the batteries, the inverters and the meters. The System Alerts section on the Alerts tab of the Devices screen lists the codes active in the last 3 days, and a notification is sent when a new one appears. The notification lists the conditions the system reported.

Only codes that are actionable on their own are shown. The system reports hundreds of codes, most of them informational states, routine self-tests, or normal operating conditions, and those are filtered out. A code that is already covered by one of the alerts above, such as a battery calibration, notifies once through that alert rather than twice.

A notification is sent once per occurrence. An alert that stays active, for example a fault waiting on a service visit, does not notify again while it persists, and it remains listed on the Devices screen for as long as the system keeps reporting it.

Several codes can appear at the same time, and often describe the same underlying event from the point of view of different components. A single notification lists all of them.

Configuration

Enable push notifications in Settings so the app can send alerts and collect diagnostic data. You can also enable email notifications.

Past alerts are shown in the Alerts tab on the Devices screen.

Troubleshooting

If you get an alert, confirm the issue using Netzero or the Tesla app’s Solar and Powerwall charts and compare recent days.

If the issue persists, try turning the system off and on again. For details, see Tesla’s documentation: Troubleshooting Your System.

For Powerwall issues, make sure the side switches are on and breakers are closed. Follow the troubleshooting guide above. If power cycling does not resolve the issue, contact your installer or Tesla support.