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Here is a comparison between the two Enphase systems, IQ6+ vs S280, with the differences between the microinverters highlighted:
IQ6+ | S280 | |
System Compatibility IQ System | System Compatibility Original Systems | |
Primary Use Residential | Primary Use Residential / Commercial | |
Project Voltage 120/240V or 120/208V (1φ) | Project Voltage 120/240V or 120/208V | |
Commonly Used Module Pairing - Input Power 235 - 400+W | Commonly Used Module Pairing - Input Power 235 - 365W | |
MPPT Range 27 - 37 V | MPPT Range 27 - 37 V | |
Maximum input DC voltage 62 V | Maximum input DC voltage 48 V | |
Operating range 16 V - 62 V | Operating range 16 V - 48 V | |
Min/Max start voltage 22 V / 62 V | Min/Max start voltage 22 V / 48 V | |
Max DC short circuit current 15 A | Max DC short circuit current 15 A | |
Peak Output Power 290 VA | Peak Output Power 280 VA | |
CEC Efficiency 97.0% | CEC Efficiency 97.0% | |
CEC weighted efficiency 96.5% at 208VAC / 97.0% at 240VAC | CEC weighted efficiency 96.5% at 208VAC / 97.0% at 240VAC | |
Module Compatibility 60-cell and 72-cell modules | Module Compatibility 60-cell modules | |
Smart Grid Ready Yes | Smart Grid Ready Yes | |
Dimensions (WxHxD) 219mm x 191mm x 37.9mm (without bracket) | Dimensions (WxHxD) 172mm x 175mm x 35mm (without bracket) | |
Weight 1.5 kg (3.3 lbs) | Weight 1.8 kg (4 lbs) |
Conclusion of IQ6+ vs S280:
The IQ6+ and Enphase S280 have similar output, but if you are looking at 72-cell modules and/or panels with a wattage of over 365W, the IQ6+ will be needed for your project.
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