Enphase IQ8 Install and Operation Manual

IQ8 / IQ8+ / IQ8M / IQ8A / IQ8H Micro Installation and Operation

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.

Full Energy Independence

In this configuration, the Enphase Energy System provides all-day backup using IQ8 series

microinverters and IQ Batteries. The system must have at least 10 kWh of IQ Batteries installed.

Depending on the IQ Battery sizing, the system will be able to sustain off grid operation for extended

periods of time. This use case supports backing up all the loads in the home. Note that the batteries

must be sized correctly to supply the loads. Two IQ Load Controllers can be installed to enable fine-

grained control of backed-up loads.

Set Up and Activate Monitoring

Refer to the Enphase 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 Gateway

• Detect devices

• Connecting to Enphase Installer Platform

• Registering the system

• Building the virtual array

NOTE: When the utility requires a profile other than the default IEEE 1547 (for example grids

managed by Hawaii Electric Industries [HEI] including HECO) you must select an appropriate grid

profile for your installation.

You can set the grid profile through Enphase Installer Platform, during system registration, or through Enphase

Installer App at any time. You must have an Enphase IQ Gateway to set or change the grid profile. For more

information on setting or changing the grid profile, refer to the Enphase IQ Gateway installation and Operation

Manual at enphase.com/support.