Tesla Model 3 and Model Y Gain Vehicle-To-Home Backup Capability

Tesla has expanded its vehicle-to-home (V2H) capability to include the Model 3 and Model Y, allowing these vehicles to act as backup power sources during blackouts. The announcement marks a significant shift, as the Cybertruck was previously the only Tesla model equipped with this feature.

What Happened

According to Tesla, the Powershare feature is available for Model 3 and Model Y vehicles purchased on or after October 1, as well as select vehicles bought before that date. To utilize the system, owners must have a Tesla Powerwall battery-storage unit and a Wall Connector installed. Once configured, the vehicle can output up to 15 kW of power back to the home. The hardware requirements are substantial: the Powerwall 3 costs approximately $15,000 including installation, while the Wall Connector is priced at $585. This setup contrasts with the Cybertruck, which includes an onboard DC-to-AC converter and requires only a Universal Wall Connector and a Powershare Gateway, available for $1,970 via Tesla's Powershare Home Backup Bundle.

Why It Matters

This update places the Model 3 and Model Y alongside other EVs like the Chevy, Cadillac, Kia EV9, and Nissan Leaf that offer vehicle-to-home capabilities. For existing Powerwall owners, the primary benefit is increased resilience; Tesla states that integrating a Powershare-equipped Model 3 or Model Y can extend backup power duration by two days, assuming a household energy consumption rate of 30 kWh per day. This effectively turns the car's large battery pack into an emergency generator, though the high cost of the necessary home energy hardware remains a barrier for many potential users.

The Bottom Line

Tesla's Model 3 and Model Y can now serve as home backup power sources via the Powershare feature, provided owners invest in a Powerwall and Wall Connector. The system allows for 15 kW of power output and can extend home backup duration by two days based on average usage metrics.