What we know
Tesla has expanded its Powershare Home Backup feature to allow some Model 3 and Model Y vehicles to function as backup batteries for homes during power outages. This means that certain owners of these electric vehicles can use their car batteries to supply power to their homes when the grid is down. According to the information gathered, Tesla is extending this capability, which was previously available with the Cybertruck, to additional vehicle models.
Why it matters
The ability for electric vehicles to provide power to homes—known as vehicle-to-home (V2H) technology—is an emerging trend in the automotive and energy sectors. It offers a potential solution for energy resilience during outages or periods of high electricity demand. Tesla’s expansion of Powershare Home Backup to Model 3 and Model Y vehicles reflects this growing interest in leveraging EV batteries as home energy resources. Other automakers, including Ford and Hyundai, have also introduced V2H features in some of their models, indicating a broader industry movement toward integrating electric vehicles with home energy systems. Additional information about how the system operates, its limitations, and real-world effectiveness is also currently unavailable.
What is still unknown
Enforcement details, remaining product questions, and independent tests are not in the reporting.