Enphase Promotes GaN-Based Microinverter At Intersolar

This commercially available product can optimize real-time module-level power output in multiple application scenarios, while it is rated for a single-phase power of up to 427 VA

Enphase’s new IQ9N series microinverter, which was showcased at Intersolar, is built on GaN-based power switching devices. (Photo Credit: Enphase Energy)

Published on:

Jul 01, 2026, 9:49 am

Key Takeaways

Enphase’s latest IQ9N series microinverter uses GaN-based switching devices for power conversion and is rated for a maximum efficiency of 97.95%

It features a module-level RSD safety function and is housed in a double-insulated polymer-based enclosure

This product is commercially available across Europe

US-based microinverter producer Enphase Energy, Inc., showcased its latest microinverter, the IQ9N, at Intersolar Europe 2026, with a focus on European prosumers.

The microinverter is rated to deliver a power output (single-phase) of up to 427 W at the individual module level, carrying up to 16 A DC. With its individual MPPT tracker, it continuously tracks the maximum power point of the shaded module, keeping the bypass diodes reverse-biased and preventing triggering. It also prevents hotspot generation risk. Additionally, it optimizes real-time power output in a complex roof layout, where multiple roof sections have different module orientations and incident irradiance levels. Gallium nitride (GaN)-based microinverters have a wider bandgap and higher breakdown voltage than conventional silicon-switching-device-based microinverters. This attribute leads to faster switching speed and cooler operation with reduced power losses while maintaining a conversion efficiency of up to 97.95%.

In terms of safety, it is housed in a double-insulated enclosure made of corrosion-resistant polymers. According to the company, it can operate within a temperature range of -40 to +65°C without failure. Its built-in rapid shutdown (RSD) function shuts down the PV system via the inverter and disconnects from the grid upon receiving a fault signal due to an electric arc generated by a defective PV module or the array. This safety function protects utility workers or first responders who come to address a local fault or shutdown from electric shock. With the Enphase App installed on their mobile devices, users can monitor and visualize the system's real-time status and receive alerts for anomalies.

According to Enphase, the product is commercially available in France, Belgium, the Netherlands, Italy, Spain, Switzerland, the United Kingdom, Germany, and Luxembourg through Enphase distribution partners.

Also on display was the company’s DC-coupled IQ Bidirectional EV charger, which can switch between Vehicle-to-Grid (V2G) and Vehicle-to-Home (V2H) modes, offering vehicle charging and emergency backup to the home.

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