Go Off-Grid

The Tesla app tracks how long your system remains off-grid, allowing you to view how much backup power is available. View your off-grid backup durations in the ‘Backup History’ screen.

You can use Go Off-Grid to identify the kinds of heavy loads your Powerwall system can support. For partial home backup systems, Powerwall will only provide backup power to your essential loads while non-essential loads will remain connected to the grid. To fully simulate a grid outage on a partial home backup system, switch off your service disconnect breaker. If you use high-power loads that exceed what your Powerwall can support, it will automatically reconnect to the grid to support these loads. Learn more about what Powerwall can back up.

There’s no need to be concerned with additional risks of using Go Off-Grid to disconnect your Powerwall from the grid. If you have solar, your Powerwall will power your home with energy produced by your solar system, like Self-Powered mode.

This may indicate that your system is not ready for the virtually seamless transition off-grid, such as during high power usage. Go Off-Grid is built to recognize power disruptions at your home, so your Powerwall will not allow transition off-grid if it expects even a minor power disruption while your system disconnects.

When your Powerwall is fully charged while using Go-Off Grid, excess solar production will have no available destination, as it would otherwise be sent to the grid. To prevent overcharging or other system damage, your Powerwall will raise your system frequency to turn off your solar inverter. If you wish to maximize solar production, use the Tesla app to reconnect to the grid before Powerwall fully charges.

When using Go Off-Grid, your Powerwall attempts to seamlessly disconnect from the utility grid, but you may encounter flickering lights in your home during a disconnect or reconnect. Load drops may occur due to factors such as high-power use, high solar production or a full charge on your Powerwall. We monitor non-seamless disconnects and routinely improve Powerwall's backup behavior with software updates.

Go Off-Grid also allows vehicle charging when your Powerwall is disconnected from the grid, so you can dynamically charge your vehicle using excess solar stored during daylight hours, maximizing your use of renewable solar energy to drive.

Charge on Solar enables you to charge your Tesla vehicles more efficiently with excess clean energy produced by your solar system. If your Powerwall is in Go Off-Grid, it may stop or slow down your vehicle charging to meet your home’s power and energy needs.