A single-panel microinverter gives every panel its own inverter, so shade, dirt or a different roof angle on one panel affects only that panel, and a failure takes just one panel offline. It is the most flexible layout and the easiest to grow one panel at a time, but it costs more per watt than two- and four-panel units. Match the inverter’s continuous output to your panel’s wattage, since a much larger panel loses some output to clipping at midday.
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Full ranking 11
- Duracell D350-M1A#1 of 11Full review
A low cost one panel unit for 400 to 450 W panels, with input current to spare and the same 25 year warranty as Enphase.
Signature Solar $110.38$110.38350 W20 A25 years - Enphase IQ8HC#2 of 11Full review
The Enphase choice for today’s 450 W and larger panels. It gets the most output per panel in the line at its lowest price per watt.
altE $161 US Solar Supplier $185.44 Signature Solar $239.75$161384 W14 A25 years - Enphase IQ8MC#3 of 11Full review
The best value in the Enphase line for 350 to 450 W panels. It takes more current than the IQ8M for less money.
US Solar Supplier $149.46 Signature Solar $211$149.46320 W14 A25 years - Hoymiles HMS-500-1T-NA#4 of 11Full review
A single panel inverter for big 500 W+ panels where shade or odd roof planes call for one inverter per panel. For a plain array, a Hoymiles four panel unit costs much less per watt.
Self2Solar $199$199475 W14 A25 years - Enphase IQ8AC#5 of 11Full review
The Enphase pick for 400 to 500 W panels, replacing the IQ8A with a higher input current at a lower price.
US Solar Supplier $173.96 Signature Solar $211 altE $227.44$173.96349 W14 A25 years - Enphase IQ8M#6 of 11Full review
A good match for 350 to 450 W panels on an Enphase system. Check the IQ8MC price first, since it takes more current for less.
Shop Solar Kits $186.05 Renewable Outdoors $185 US Solar Supplier $202.78$185325 W12 A25 years - Enphase IQ8H#7 of 11Full review
For big 72 cell panels on a 240 V Enphase system. The IQ8HC does the same job with more input current and usually costs less.
Amazon $199$199380 W12 A25 years - Enphase IQ8+#8 of 11Full review
The common choice for 60 and 72 cell panels up to about 400 W on an Enphase system. For bigger modern panels, the IQ8HC or IQ8MC takes more current for less per watt.
Amazon $170 US Solar Supplier $164.84$164.84295 W12 A25 years - Enphase IQ8A#9 of 11Full review
For 400 to 500 W panels on an Enphase system, but the IQ8AC replaces it with more input current for less money.
GoGreenSolar $207 Renewable Outdoors $221 Shop Solar Kits $223$207349 W12 A25 years - Enphase IQ8X#10 of 11Full review
Only for high voltage 80 or 96 cell panels, where it is the Enphase option. Everyone else should pick the IQ8HC.
US Solar Supplier $206.05$206.05384 W10 A25 years - Enphase IQ8#11 of 11Full review
For adding to or repairing an existing Enphase system with older 60 cell panels. On a new build with modern panels, an IQ8M or larger costs less per watt.
GoGreenSolar $154.81$154.81240 W10 A25 years
