Tesla Expands Vehicle-to-Home Backup Power to Model 3 and Model Y

Industry Pulse News Desk · 2026-10-06

Tesla is rolling out its Powershare Home Backup feature to select Model 3 and Model Y vehicles paired with home energy storage systems.

Tesla has expanded its Powershare Home Backup capability to select Model 3 and Model Y electric vehicles, allowing drivers to use their vehicle batteries to power their homes during electrical outages. The feature, which was previously restricted to the company's Cybertruck, enables vehicle-to-home energy transfer when connected to compatible home battery hardware.

Under the current rollout, the bidirectional charging capability requires installation of a Tesla Powerwall 3 energy storage unit. The automaker stated that software support for earlier home storage hardware, including the Powerwall 2 and Powerwall Plus systems, is scheduled for release in a future update.

According to technical specifications released by the company, utilizing a Model 3 or Model Y battery alongside a home energy system can extend residential backup power for up to two additional days during a grid disruption. The duration depends on household energy usage and the state of charge of both the vehicle and the stationary home battery.

The expansion brings Tesla's high-volume passenger vehicles into line with broader industry trends toward vehicle-to-grid and vehicle-to-home technology. Competitors including General Motors, Kia, and Nissan have previously introduced bidirectional power capabilities in select electric models to enhance residential energy resilience.

Integration of the system requires specialized charging equipment and home energy management software to ensure safe power transmission between the vehicle and the residential electrical panel. Tesla has not specified exact delivery timelines for the backward-compatible software update for legacy Powerwall owners.