Enphase Energy, Inc. announced that it began production shipments of its IQ9N-3P?? Commercial Microinverter across the United States in late December 2025. The product is manufactured in the United States to support domestic content requirements and Foreign Entity of Concern (FEOC) compliance for eligible commercial solar projects.
This is Enphase's first microinverter powered by gallium nitride (GaN) technology and designed for three-phase 480Y/277 V (wye) grid configurations, without using external transformers. The IQ9N-3P Commercial Microinverter helps simplify system design, lowers installation and balance of system costs, and improves system efficiency for 480 V commercial projects. It uses GaN technology in the power conversion stage instead of silicon, enabling greater performance, enhanced reliability, and an efficiency of up to 97.5%.
Its compact, high-performance design can manage a continuous DC current of 16 acres and deliver up to 427 VA of peak output power, supporting high-power solar panels up to 600 W. The new microinverter meets rigorous grid compliance standards, including UL 1741-SB and IEEE 1547-2018, and features rapid shutdown, phase balancing, voltage/frequency ride-through, and loss-of-phase detection for grid safety and system reliability. Enphase commercial systems are designed to support UL 3141, a system-level standard for safe, coordinated control of power flow. It is enabled through Enphase Power Control software and does not require external protection hardware.
This helps simplify commercial interconnection and supports no-export or export-limited operation across all phases. Enphase IQ9N-3P commercial Microinverters can be deployed on small systems (less than 100 kW) or large systems (h hundreds of kW) and can start small and scale over time without major redesign. Enphase microinverter technology enables optimized energy production at the panel level under shading and uneven roof conditions, making the product ideal for commercial rooftops with HVAC obstructions, skylights, and multi-tenant layouts.
Enphase microinverters can also help reduce long-term operational costs for asset owners by minimizing single points of failure in the installation, providing easy replacement support, and improving fleet visibility with per-panel monitoring via the Enphase®? App. Additionally, by converting direct current (DC) to alternating current (AC) at each panel, Enphase microinverter systems avoid the long high-voltage DC runs found in traditional centralized ("string") designs, offering an all-AC architecture on the roof for added safety.
To function properly, the IQ9N-3Pcommercial Microinverters must be connected to the IQ Gateway Commercial Pro Cellular Kit, which serves as the communication and control hub for Enphase commercial systems. The IQ Gateway Commercial Pro Cellular Kit adds a 4G LTE Cat 4 modem that enables dual-SIM connectivity with automatic failover to help keep the system online for real-time monitoring, energy management, remote firmware updates, and advanced grid features such as export limiting. Setup is simple through the Enphase®? Installer App.
The IQ9N- 3P Commercial Microinverter brings Enphase's panel-level architecture to the 480 V commercial market with a simpler, more efficient system efficiency for 480 V commercial project.
