Tesla Enables Model 3 and Y Owners to Use Car Battery as Home Backup Power
Translated & summarized from Behadrei Haredim by baba
Tesla is enabling Model 3 and Model Y owners to use their car batteries as home backup power during outages, integrating with Powerwall and charging stations. Standard models can provide up to two days of backup, with premium versions offering more. The feature is slated for US and Puerto Rico orders from October 2026, but is currently unavailable in Israel due to the lack of official Powerwall sales.
The story in 5 lines · by baba
- Tesla's Powershare technology now allows Model 3 and Y owners to use car batteries for home backup power.
- The system integrates with Tesla's Powerwall and charging station for seamless power during outages.
- Standard range vehicles can provide up to two days of backup power, with premium versions offering more.
- The feature is officially supported for US and Puerto Rico orders placed after October 1, 2026.
- Tesla owners in Israel cannot currently use this feature due to the absence of official Powerwall sales.
Tesla is expanding its Powershare technology to allow owners of Model 3 and Model Y vehicles to use their car batteries as a home power source during outages. Previously, this capability was primarily available for the Cybertruck. The system integrates with Tesla's Powerwall battery and a compatible charging station. When the main power grid fails, the vehicle can supply energy from its battery to the home, significantly extending backup power duration. If the home is also equipped with solar panels, they can continue to provide energy during the outage.
According to Tesla, standard range Model 3 and Model Y vehicles can offer up to two additional days of backup power, while premium and performance versions can exceed this. This calculation assumes a typical American home consuming around 30 kWh per day and a car battery charged to 90%.
However, there are significant limitations for users outside the US. Tesla currently guarantees support for this feature in Model 3 and Model Y vehicles ordered in the United States and Puerto Rico starting October 1, 2026. Some vehicles manufactured earlier may also support the technology, which can be verified through the car's multimedia screen.
In Israel, the rollout is even more restricted because Tesla's Powerwall system is not officially marketed there. Consequently, Tesla owners in Israel are not expected to be able to utilize their vehicles as a full home backup battery at this time.