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The Enphase IQ9N is Enphase's first residential microinverter built on gallium nitride — here's what the GaN switch actually changes, the verified specs, and the honest availability picture.
GaN
Semiconductor
427 VA
Max Output
97.5%
CEC Efficiency
Up to 25 yr
Warranty
Enphase has published the US/North-America residential IQ9N datasheet (December 2025) and lists the SKU (IQ9N-A-DOM-US) on its US store. The announced, shipping residential launch so far is Europe (shipments began June 5, 2026). Enphase’s US press releases to date cover the commercial IQ9 units (IQ9N-3P, IQ9S-3P), not residential shipping. Treat US residential IQ9N as published-and-listed but confirm orderability and lead times with your installer before planning around it.
NuWatt does not promise a US residential install date for the IQ9N. We confirm orderability and lead times with our distributor before specifying it on any project.
The Enphase IQ9N (SKU IQ9N-A-US / IQ9N-A-DOM-US) is Enphase's first GaN microinverter. Per its North-America datasheet it delivers 427 VA continuous output, 97.5% CEC efficiency, pairs with 340–580 W panels, and carries an up-to-25-year warranty. GaN's real-world win is cooler operation and higher power density rather than a headline efficiency jump — and US residential availability is not yet confirmed (see the banner above).
Gallium nitride replaces the silicon Enphase used through the IQ8 generation. Here's what that actually buys a homeowner — grounded in Enphase's own published claims, not marketing superlatives.
GaN transistors switch faster and waste less energy as heat than the silicon used through IQ8. Enphase ties the lower heat to improved long-term reliability — the failure mode that ages any power electronic is heat.
IQ9N delivers 427 VA continuous from a 1.1 kg unit — essentially IQ8-class size and lighter than the 1.6 kg IQ8P, despite supporting panels up to 580 W. More output per gram is the clearest GaN win.
The 340–580 W pairing window fits today’s mainstream 440–500 W+ residential panels (REC, Silfab, Qcells) with headroom — well above the older IQ7/IQ8+ ceiling.
Up to a 25-year limited warranty (with an internet-connected IQ Gateway) — the headline term carries over from IQ8, now on cooler-running GaN hardware Enphase positions as more reliable.
Every figure below is quoted from the Enphase residential IQ9N North-America datasheet. We don't estimate microinverter specs.
| Specification | Value |
|---|---|
| Semiconductor | Gallium nitride (GaN)Enphase’s first GaN microinverter — replaces silicon used through IQ8 |
| Max continuous output power | 427 VA @ 240 V (405 VA @ 208 V) |
| CEC weighted efficiency | 97.5% |
| Peak efficiency | 97.8% |
| Commonly used module pairings | 340–580 W |
| Max input DC voltage | 60 V |
| MPPT voltage range | 28–45 V (operating 18–58 V) |
| Max continuous input DC current | 16 A |
| Max module short-circuit current (Isc) | 20 A |
| Nominal grid voltage | 240 V split-phase · 208 V single-phase |
| Dimensions (H × W × D) | 214 × 176 × 30.8 mm (8.4 × 6.9 × 1.2 in) |
| Weight | 1.1 kg (2.4 lb) |
| Ambient temperature range | ‒40 °C to 65 °CNatural convection — no fans |
| DC connector | Stäubli MC4 (integrated) |
| Warranty | Up to 25 yearsValid with an internet-connected IQ Gateway |
Source: Enphase IQ9N residential datasheet (DSH-00799-1.0, Dec 2025).
The IQ9N pairs with modules from 340 W up to 580 W. Mainstream high-efficiency residential panels sit comfortably inside that window; panels at the top of the range need a quick Voc/Isc check.
Alpha Pure-RX
470 W
Sits comfortably inside the 340–580 W window with headroom for hot-day peaks.
Elite
440 W
Mainstream high-efficiency panel; well inside the IQ9N pairing range.
Q.TRON
440 W
Modern 440 W-class module — fits with margin for production.
Maxeon 7
475 W
Premium high-wattage panel; inside the 580 W ceiling.
Various
500–580 W
Near the top of the window — confirm the exact panel’s Voc/Isc against Enphase’s compatibility calculator before specifying.
Honest ceiling note: the IQ9N tops out at 580 W. If your design calls for larger panels, the silicon IQ8P still pairs bigger modules (up to 670 W). The IQ9N is “GaN-efficient and high-power-panel ready,” not “the unit for the largest panels Enphase makes.”
The IQ9N drops into the existing Enphase stack — the same Gateway, batteries, controller, and app that run IQ7 and IQ8 systems.
Required for every system — aggregates per-panel data and connects to the internet for monitoring. The up-to-25-year IQ9N warranty is conditional on an internet-connected Gateway.
IQ9N is compatible with the IQ Battery line for grid-tied or backup storage — add storage without changing the microinverter.
Enables whole-home backup and Sunlight Backup. An all-IQ9N (or IQ8+IQ9N) array supports Sunlight Jump Start — daytime solar restart after an outage even with a depleted battery.
Real-time per-panel production and system-health monitoring from your phone — the same app across IQ7/IQ8/IQ9 systems.
The honest answer for most homes: if your installer can source IQ8 today, there's little reason to wait. Here's the trade-off, side by side.
Every spec on this page traces to an Enphase primary source. Verify for yourself:
NuWatt specs the right Enphase microinverter for your panels and confirms real availability before you commit — no install dates we can't keep. Serving MA, CT, RI, NH, ME, VT, NJ, PA, and TX.
NuWatt installs Enphase microinverters on every residential solar project. We'll track IQ9N US residential availability with our distributor and recommend the proven IQ8 lineup in the meantime — same warranty, same Sunlight Backup, shipping now.