Enphase Energy is expanding into a new market segment with the launch of its latest commercial microinverter, designed to support 480 VAC three-phase solar applications. This new product eliminates many of the design, installation, and maintenance challenges typically associated with traditional string inverter technology used for 480 VAC systems.
The IQ9N-3P microinverter was introduced at RE+ 2025 in Las Vegas, where it received positive reception. It’s clear the market has been waiting for this innovation with new and existing customers already incorporating it into future project designs.
The Enphase commercial offering
Enphase C&I microinverters include domestic content SKUs and comply with both Build America, Buy America (BABA) and Buy American Act (BAA) standards.
Shipping in December 2025: The IQ9N-3P microinverter is the next evolution in Enphase’s commercial and industrial (C&I) product line. This model simplifies solar system design complexity, lowers installation and balance-of-system costs, and improves system efficiency for 480 VAC commercial projects. Built with cutting-edge GaN technology that replaces traditional silicon-based components, improves the product’s form factor and enhances reliability.
This new microinverter meets rigorous grid compliance standards, including UL 1741-SB and IEEE 1547-2018, and features capabilities such as rapid shutdown, phase balancing, voltage/frequency ride-through, and loss-of-phase detection for grid safety and system reliability.
Available today: Over the past two years, the Enphase IQ8P-3P Commercial Microinverter has made a significant impact in the solar industry. It continues to gain momentum, supporting small commercial installations—typically less than 200 kW—for 208 VAC, three-phase systems.
Is there a financial reason to choose the Enphase Commercial solution?
The short answer is yes. Enphase offers a solution that meets specific market needs and delivers clear measurable advantages:
U.S. manufacturing:
- Get domestic content from Enphase for a potential 10% ITC bonus credit
- Enphase commercial microinverters include domestic content SKUs and are FEOC –compliant, helping customers meet U.S. manufacturing and sourcing requirements
Availability: Standard lead times mean no costly delays
Save time: Simplified design and installation. Use the Enphase App to potentially solve problems without the need to go to the project. Panel-level monitoring with Enphase’s AC architecture adds peace of mind and leads to a better O&M plan.
Warranty: 25-year warranty for commercial microinverters means no inverter replacement costs typically required from string inverters during the life of the system
Production: Higher uptime and reduced downtime, resulting in greater energy production over the system’s lifetime, supporting a compelling LCOE discussion
Reliability: Proven product reliability means more energy yield:
- Microinverters offer a low failure rate of 0.05%
- Microinverters are factory sealed and do not have any annual service requirements (no fans, vents, etc.)
All AC wiring means less equipment and fewer potential points of failure
Dedicated team: Enphase offers more than a product, we are a partner in your success. A dedicated C&I team supports you throughout the design and installation process.
Who benefits?
Current customers: Installers, developers, and engineering, procurement, and construction (EPC) companies
End customers: They benefit from long-term value and optimized LCOE, supported by a 25-year warranty that aligns with solar module warranties
New customer segments: Projects ranging from 200kW to multi-MW, including:
- Solar developers who own assets and self-perform
- Solar developers who own assets but outsource installation
- Large-scale EPCs who self-perform but don’t own assets
- Real estate investment trusts (REITs) that own assets and partner with third-party specialists
- Solar project consultants who are the industry experts and partner with large organizations to help develop PV projects
- Engineering firms supporting developers, EPCs, and enterprise customers
The solar industry has undergone dynamic changes in 2025. Partnering with Enphase for C&I solutions—whether in 480 VAC or 208 VAC, three-phase projects—provides a smarter, more streamlined, and confident path forward.
Enphase addresses common challenges associated with traditional string inverter project designs. Whether you are designing a new project design or approaching a repowering project, our C&I solution enables simplified system design, flexible roof layout options, faster installations, and a compelling operations and maintenance (O&M) offering. Choosing a product manufactured in our U.S. factory further reinforces why Enphase is the best choice for the future.
Our dedicated team is ready to support your next project
Learn more by contacting your local Enphase representative or email commercialsales@enphaseenergy.com.
