Tesla Expands Home Backup Power to Some Model 3 and Model Y Cars

What changed

Tesla is expanding its Powershare Home Backup feature to some Model 3 and Model Y vehicles. Owners can use the car’s battery to help keep a home running during a power outage, but the system requires Tesla’s Powerwall 3. Support for Powerwall 2 and Powerwall Plus is coming soon.

The feature was previously limited to Cybertruck owners. Tesla has not said which Model 3 and Model Y configurations qualify, or provided rollout, pricing or performance details.

Why it matters

This turns an electric car into more than a parked battery. During an outage, a compatible Tesla can help extend household power, provided the home already has the required Powerwall setup. The practical value is therefore tied to the whole system, not just the vehicle.

It also shows where vehicle-to-home charging is heading: the car and the house are becoming part of the same energy system. Tesla is not first here. Kia and GM already offer vehicle-to-home power, while Nissan’s Leaf previously supported vehicle-to-grid charging.

Tesla’s move matters because it brings that capability to two of its mainstream models, rather than leaving it attached only to the Cybertruck. But until Tesla publishes the eligible configurations, costs and power limits, this is a promising feature expansion, not yet a clear buying reason for every Model 3 or Model Y owner.