IQ8MC, IQ8AC, IQ8HC, and IQ8X Microinverters Installation and Operation Manual
23 © 2023 Enphase Energy Inc. All rights reserved. November 2023
USM-00008-2.0
In the whole home (main load panel) backup configuration, IQ System Controller is installed on the line side of the main
load panels rated up to 200 A. This allows a properly sized Enphase Energy System to provide power to all loads in the
main load panel in the event of a grid outage. In this configuration, the IQ System Controller can be configured with a
main breaker to act as the service disconnecting means. The PV system can be connected to the IQ System Controller
on a dedicated breaker or to the main load panel. This configuration typically supports larger PV and storage system
sizes and may allow for avoiding expensive utility service and/or main service panel upgrades.
The above configuration can also work with a genset connected to IQ System Controller with or without IQ Battery. The
two images explain the connection configuration.
Enphase Energy System PV solar + generator configuration
Enphase Energy System PV solar + IQ Battery + generator configuration
Set up and activate monitoring
Refer to the IQ Gateway Quick Install Guide to install the IQ Gateway and set up system monitoring and grid
management functions. This guide leads you through the following:
• Connecting the IQ Gateway
• Detecting devices
• Connecting to the Enphase Installer Platform
• Registering the system
• Building the virtual array
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