8 Powerwall Owner’s Manual
4. Powerwall System with Backup
About Powerwall
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, off-grid use, or backup. The Backup Gateway controls the
operation of the system, allows remote monitoring of energy usage, and controls
interconnection with the electrical grid, automatically managing the transition to and from
backup operation.
A Powerwall 2 AC Backup system can provide whole-home backup or partial backup.
• In a whole-home backup system, the Backup Gateway is typically installed
between the electrical service entry and the main panel:
• In a partial home backup system, the Backup Gateway is typically installed
between the main panel and a subpanel dedicated to critical backup loads:
Monitoring Your System
Using the My Tesla app, you can monitor system operation from your mobile device,
including the following:
• Real-time power usage
• Energy consumption history
• Energy reserve for backup needs
• Relative amounts of energy used from solar, grid, and Powerwall storage
To download the latest version of the My Tesla app, visit www.tesla.com.
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