Tesla has officially introduced a new feature called Charge on Solar, which was first seen in the source code of the mobile app several months ago. The feature allows Tesla owners to charge their electric vehicles by utilizing excess solar energy generated from their Tesla solar systems.

Charge on Solar is now available for both Canadian and US Tesla owners. According to a new support page launched this past weekend, the software requirements are a minimum of version 2023.26 for the vehicle, version 23.12.10 for the Powerwall, and version 4.22.5 for the Tesla app. Unfortunately owners of a 2012-2020 Model S or 2015-2020 Model X aren’t able to use Charge on Solar.

To begin using the new feature users can simply open the Tesla app, select the vehicle in question, and then hit “Charge on Solar.” The application will then ask the user to set a charge limit and preferred charge location. In short, this should allow users to pull only as much charge as they want from the grid before topping up with solar only.

It’s worth noting that, at least for now, this feature only works with Tesla Powerwall. Those who have third-party batteries that store solar energy can’t take advantage of Charge on Solar for now.