Commercial

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

No, the IQ8P-3P and IQ8H-3P constitute a separate commercial product line designed specifically for three-phase installations only. The IQ8 Commercial Microinverters feature an entirely different form factor and mounting bracket and are only compatible with the three-phase QD Cable and IQ Commercial Gateway 2. IQ8 series microinverters used for residential purposes are only compatible with single/split-phase systems utilizing Enphase Q Cable and IQ Gateway.

• A three-phase IQ7+ system utilizes the IQ7+ Microinverter, Enphase Q Cable (2-wired cable) and the Enphase IQ Gateway Commercial – either standalone or as part of the Enphase Three Phase Network Protection Relay (TPNPR) to provide loss of phase detection. Phase balancing in a three-phase IQ7+ system requires allocating the branch circuits equally across the three phases in the PV aggregation panel.

• A three-phase IQ8 Commercial microinverter system utilizes the IQ8P-3P or IQ8HC-3P microinverter, the Enphase QD Cable (4-wired cable) and the Enphase IQ Gateway Commercial 2. In no circumstance is the Enphase TPNPR required on an IQ8 Commercial PV system. The QD Cable provides Auto Phase Rotation and Neutral Sense Capabilities. Please visit the IQ8 Commercial information page for configuration diagrams.

• Enphase has not evaluated nor tested the integration of the IQ8 Commercial PV System with any 3rd-party single-phase or three-phase battery solution and cannot support installations where three-phase solar PV and 3rd-party storage integration are required.

• The Enphase IQ8 Commercial PV System is a grid-tied, three-phase, 208V PV solution that will be fully compliant with IEEE1547:2018 standards upon release. Each IQ8 Commercial microinverter, either the IQ8P-3P or IQ8HC-3P, connects to a single PV module and integrates with the Enphase IQ Commercial Gateway 2 and Enphase monitoring and analysis software. The IQ8 Commercial PV System will offer system-level rapid shutdown compliance with UL-listed PV modules; offers advanced grid functionalities, voltage and frequency ride through, and neutral sense capabilities.

• Enphase is evaluating storage solutions for three-phase applications. We look forward to providing an update in the future.

• Yes, you will use the same commissioning application for IQ8 Commercial PV Systems and you will be able to monitor your entire fleet of installed systems, irrespective of individual site type or microinverter. In anticipation of IQ8 Commercial, Enphase plans to rollout advanced fleet management and kiosk features to our existing software application in 2022. These new features will be accessed through your existing dashboard and login credentials.

• Yes, all system owners will utilize the same app, irrespective of system type. Owners with multiple systems can access all their Enphase systems from a single login to the Enphase App.

• No. IQ8, IQ8A, IQ8M, or IQ8+ Microinverters are not UL listed and nor tested for three-phase applications hence cannot be used with three-phase commercial systems.

• IQ8 Commercial Microinverters will be available in two variants. IQ8P-3P with 475W maximum continuous output power (480W, peak power); and IQ8HC-3P with 380W maximum continuous output power (384W, peak power).

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.

We are targeting availability in November 2023.

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

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.

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• IQ8 Commercial microinverters are compatible with high-power modules from 54-cell up to 72-cell with full or cut-cell configuration. 

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• No, IQ8 Commercial PV systems will be grid-tied only upon release Spring 2023.

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.”

• Please visit our IQ8 Commercial page here:

• https://enphase.com/installers/commercial

Enphase is currently offering, for a limited time, design reviews at no charge for commercial systems. Separately, a select set of Enphase Installer Network (EIN) installers can now procure comprehensive design services from Enphase.

If you’re interested in procuring design services for prospective commercial projects using IQ7+ Series or IQ8 Series Microinverters, please reach out to your Enphase regional sales manager.