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When will the IQ8 Commercial PV system components be available to purchase and receive from my distributor?
  • Enphase is targeting availability in Spring 2023.

How will a three-phase IQ8 Commercial PV system design differ from a three-phase IQ7+ system design?
  • A three-phase IQ7+ system utilizes the IQ7+ Microinverter, Enphase Q Cable (2-wired cable) and the Enphase IQ Commercial Gateway – 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 Commercial Gateway 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.

What are the features of an IQ8 Commercial PV System?
  • 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.

As an installer, will I utilize the same commissioning and monitoring software for IQ8 Commercial PV Systems as I currently utilize for all other Enphase installations?
  • 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.

As a system owner, will I utilize the same Enphase application to monitor my IQ8 Commercial PV System as my residential Enphase IQ System?
  • 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.

What are the power output levels of IQ8 Commercial PV microinverters?
  • IQ8 Commercial PV microinverters will be available in two variants. IQ8P-3P with 470W maximum continuous power (480W, peak power); and IQ8HC-3P with 380W maximum continuous power (384W, peak power).

What modules will be compatible with the IQ8 Commercial PV microinverters?
  • IQ8 Commercial microinverters are compatible with high-power modules from 54-cell up to 72-cell with full or cut-cell configuration. 

Is the IQ8 Commercial PV System grid-forming capable?
  • No, IQ8 Commercial PV systems will be grid-tied only upon release Spring 2023.

Where can I find more information on the IQ8 Commercial PV microinverters and IQ8 Commercial PV system solution?
  • Please visit our IQ8 Commercial page here:


Does Enphase offer, or plan to offer, any design-related services to installers of Enphase IQ8 Commercial PV systems?
  • Enphase is currently offering, for a limited time, design reviews at no charge for commercial systems. Separately, Enphase is currently offering comprehensive design services for purchase to a select group of EIN installers. If you are interested in procuring design services from Enphase for your prospective IQ7+ or IQ8 Commercial projects, please reach out to your RSM.

Are IQ8P-3P and IQ8H-3P high powered three-phase versions of residential IQ8PV microinverters?
  • No, the IQ8P-3P and IQ8H-3P constitute a separate IQ8 Commercial PV 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. IQ8PV microinverters are only compatible with single/split-phase systems utilizing Enphase Q Cable and IQ Gateway.

Will the IQ8 Commercial PV system be compatible with my favorite battery solution?
  • 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.

Will Enphase also launch a three-phase commercial battery solution?
  • Enphase is evaluating storage solutions for three-phase applications. We look forward to providing an update in the future.

What three-phase commercial solutions does Enphase currently offer to installers?
  • Installers can currently deploy Enphase solutions for three-phase electrical service customers utilizing the Enphase IQ7+, Q Cable and IQ Commercial Gateway. This provides a 208V three-phase solar PV solution compatible with 208V three-phase electrical main service panels and 480V electrical main service panels when the PV is connected to the low side of a 480-208 transformer. For locations requiring loss of phase detection the Enphase Three Phase Network Protection Relay, which includes the IQ Commercial Gateway, provides loss of phase detection.

Can I use IQ8/A/M/H/+ on three-phase commercial systems?
  • No, the IQ8/A/M/H/+ is not UL listed nor tested for three-phase applications.

PDF - 1.01 MB - Updated Nov 25, 2022