Sunlight Backup​ installation support

Power essential devices during daytime outages—even without a battery.

With Enphase grid-forming IQ8 Series Microinverters and Sunlight Backup, homeowners can now power their high-priority loads during a daytime grid outage, without a battery.

Understanding the benefits and limitations of a Sunlight Backup energy system is essential. To guarantee a hassle-free installation and homeowner experience, please review the guidelines, videos, and documentation below.

Set expectations with your homeowners.

Talk to homeowners about Sunlight Backup and set expectations that during outages the system is designed to power only essential, low-load appliances.

Read detailed talking points in the technical brief.

Use an IQ Load Controller to shed unnecessary loads.

Use at least one IQ Load Controller to maintain system stability by automatically shedding unnecessary loads when in off-grid mode.

Learn more about IQ Load Controller.

Properly commission and configure the system.

Properly commission and configure Sunlight Backup systems in the Enphase Installer App to maintain the best homeowner experience.

Watch the video for screen-by-screen instructions.

Technical resources

Sunlight Backup quick links for installers.

Technical brief

Essential installation guidelines for Sunlight Backup


Installation video

Designing, wiring, and commissioning a Sunlight Backup system


System configurator

Technical diagrams, part numbers, and more for Sunlight Backup systems

Learn more

Installation guide

Understanding Sunlight Backup system for installers and system designers


Commissioning guide

Review the Enphase Energy System commissioning technical brief for a step-by-step walk-through to commission a Sunlight Backup system


User guide

Understanding a Sunlight Backup system for homeowners