enphase IQ8 Installation And Operation Manual page 22

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation
Enphase Energy System PV Solar + Storage – Home Essentials Backup
In the home essentials backup (main load panel) configuration, IQ System Controller is installed on the line-side of the
main load panels rated up to 200A. 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 interconnected to the
IQ System Controller on a dedicated breaker or may be interconnected to the main load panel. This configuration
typically supports larger PV and storage system sizes and may allow avoiding expensive utility service and/or main
service panel upgrades. With IQ8 Microinverters on the roof, there is no PV-to-battery ratio to consider when designing
the system.
The above configuration can also work with a genset connected to IQ System Controller with or without IQ Battery.
Below two images explain the connection configuration.
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