Netzero can control your OCPP-compatible EV charger to charge your vehicle on excess solar energy. This is similar to Tesla’s Charge on Solar feature, but with support for any OCPP-compatible EV charger and any vehicle (Tesla’s feature only works with Tesla vehicles).
See EV Charger Settings for how to configure your OCPP-compatible charger.
Once your EV charger is configured, you will see a new Enable charge on solar switch in the Vehicle Charging screen.
You can configure the minimum Powerwall state of charge before Charge on solar is enabled. If you set this to 100%, charging will only start once the Powerwall is full. If you set it to 0%, charging will start the moment there is sufficient excess solar energy available.
Also configure the maximum EV charger output current. Consult your EV charger’s configuration or your electrician for the correct value.
Your system has to be in Self-Powered mode for Charge on solar to be activated. This is to avoid interfering with Time-Based Control mode, where Powerwall might prioritize exporting solar energy.
There needs to be at least 1440W (6A at 240V) of excess solar power available for charging to start. If there isn’t sufficient solar power available, charging will pause and resume once there is more power available.
Charge on solar will only activate during daylight hours. If you plug in your vehicle outside of daylight hours, it will proceed to charge at your configured rate. If you prefer to only charge with Charge on solar, manually stop charging after plugging in the vehicle (using the Netzero app). We may add an option to make this automatic, while allowing scheduled charging from the grid.
Home EV chargers are not aware of the EV state of charge, so unlike Tesla’s Charge on Solar, this feature cannot support a combined grid and solar charging slider.