Powerwall 2 AC is a fully integrated AC battery system for residential or light commercial use. Its rechargeable lithium-ion battery pack provides energy storage for solar self-consumption, load shifting, or off-grid use. The Tesla Energy Gateway controls the operation of the system and allows remote monitoring of energy usage.

For Powerwall systems with solar, excess solar energy can be stored and used at night. For systems without solar, Powerwall can charge from the grid during the day when electricity costs are low, and discharge at night when electricity costs are high.

Partial Home Backup System

A Powerwall system for partial home backup is designed to store energy from the grid or solar, and can power some home loads during a grid outage. These loads are selected during the system design phase, and the installer configures the system at installation to exclude all other loads from backup.

Whole Home Backup System

A Powerwall system for whole home backup is designed to store energy from the grid or solar, and power the entire home during a grid outage.