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Frequently asked questions
What is the limited warranty period for IQ8 Series Microinverters?

IQ8 Series Microinverters come with a 25-year limited warranty in North America.

Can I pair IQ8 Series Microinverters with bifacial solar modules?

You can pair Enphase IQ8 Microinverters with bifacial solar modules if they are electrically compatible and installed according to the Quick Installation Guide supplied with the microinverters.

In case if there is no mandatory regulation for inverter sizing by the local utilities, use the microinverter sizing methodology of a conventional mono-facial module. However, use the real power (gained power) rather than the nominal power of the bifacial solar module. For example, if a 20% gain is expected, then refer to the module output parameters associated with the 20% gain instead of the nameplate rating of the module.

You can always use the Enphase Module Compatibility calculator to feed-in the module output parameters and check the compatibility.

How can installers tell if the firmware has been updated?

In the Enphase Installer Portal (formally known as Enlighten Manager):

1. Click on “Systems” tab
2. Select a system from the list
3. Click the “Devices” tab
4. The "Processor Load" column will show the existing firmware version

Which configurations support load control?

All configurations with IQ System Controllers support load control. For Sunlight Backup, an essential loads solution is required. Please see the Sunlight Backup with IQ8 tech briefs for additional details.

How should I document model numbers in permits and plan sets?

Enphase recommends installers submit Enphase microinverter model numbers on permits and plan sets using an “-x” in place of either the “-2” or “-M”, and add “where x = 2 or M.”

For example: “Model Number: IQ7-60-x-US, where x = 2 or M” or “IQ8PLUS-72-x-US, where x = 2 or M.”

What are the improvements in the IQ8 Series Microinverter firmware release 2.48.01?

This firmware release upgrades the DC input specifications of IQ8 Series Microinverters, making them suitable for pairing with solar modules with higher currents.

•  Maximum continuous DC current increased to 12 A (previously 10.6 A)

•  Wider operating voltage range of 16-58 V (previously 25-58 V)

•  Improved power tracking with wider MPPT voltage range

•  Start-up voltage lowered to 22 V (previously 30 V)

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Features and benefits of Enphase products to customers
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