System Design

Powerwall 3 is a fully integrated solar and battery system that stores energy from solar production. It converts energy from solar panels, and its rechargeable battery pack provides energy storage for solar self-consumption, load shifting, or off-grid use. Powerwall 3 is installed with Backup Gateway 2 to control the system's connection to the grid and monitor home energy consumption.

Whole Home Backup System

A Powerwall 3 system for whole home backup is designed to store energy from the grid or solar, and power the entire home during a grid outage.
Figure 1. Whole Home Backup

Partial Home Backup System

A Powerwall 3 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.

Figure 2. Partial Home Backup with Loads Downstream of Backup Gateway 2
Figure 3. Partial Home Backup with Loads Upstream of Backup Gateway 2