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Enphase IQ 7 vs Enphase IQ 6 : The Difference Between the Micro Inverters

Enphase had announced in April 2018 that its Enphase IQ 7 and Enphase IQ 7+ microinverters were available (and currently there's talk of the IQ8 coming out in 2019). The 7th generation of Enphase micro inverters are optimized for high-powered 60-cell and 72-cell modules, compatible with modules over 420W.


Here we compare the Enphase IQ7 vs the discontinued Enphase IQ6:



Enphase IQ 7


Enphase IQ 6

System Compatibility

IQ System


System Compatibility

IQ System

Primary Use

Residential / Commercial


Primary Use

Residential

Project Voltage

120/240V or 120/208V (1φ)


Project Voltage

120/240V or 120/208V (1φ)

Commonly Used Module Pairing - Input Power

235 - 350W


Commonly Used Module Pairing - Input Power

235 - 330W

MPPT Range

27 - 37 V


MPPT Range

27 - 37 V

Operating range

16 V - 48 V


Operating range

16 V -48 V

Min/Max start voltage

22 V / 48 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

250 VA


Peak Output Power

240 VA

Maximum Continuous Output Power

240 VA


Maximum Continuous Output Power

230 VA

Maximum Continuous Output Current

1.04 A @ 240 V


Maximum Continuous Output Current

0.96 A @ 240 V

CEC Efficiency

96.5%


CEC Efficiency

96.5%

CEC weighted efficiency

96.5% at 240VAC


CEC weighted efficiency

96.5% at 240VAC

Module Compatibility

60-cell


Module Compatibility

60-cell

Smart Grid Ready

Yes


Smart Grid Ready

Yes

Dimensions (WxHxD)

212mm x 175mm x 30.2mm (without bracket)


Dimensions (WxHxD)

219mm x 191mm x 37.9mm (without bracket)

Weight

1.08 kg (2.38 lbs)


Weight

1.5 kg (3.3 lbs)


Summary:
The Enphase IQ 7 has the following main advantages over the Enphase IQ 6 model:

1. More compact, with over a 38% reduction in weight



2. Compatibility with higher wattage solar panels and an increased power output

3. Along with the reduced weight, there’s a reduction in parts needed for production (338 in the Enphase IQ7 vs 364 in the Enphase IQ6), which should hopefully translate to more competitive pricing


Note: December 2017 version of the datasheet listed the weight of the IQ7 and IQ7+ as .92 kg (2.03 lbs), but the January 2018 version lists it as 1.08 kg (2.38 lbs).

Originally written 04/23/2018, updated 09/18/2018.