Even though microinverters are a very different concept from string inverter technology, many consumers will still compare the Enphase IQ7 microinverter against a string inverter in their buying decision. Therefore, the question must be asked, how does the Enphase IQ7 range compare? 


Make and model:  Enphase iQ7 & iQ7+.

Variants:  240 | 290 W

  Design, Performance.


Once viewed as the pioneering solar technology pushing innovative boundaries, Enphase is often renowned as an overall product of refinement. After a decade after Enphase’s original product release, the Enphase IQ7 range, should be considered the most refined Enphase model yet. But is it? The 7th Generation device could almost be considered characteristically similar to the IQ 6 range however there are notable differences.


Without a doubt the more innovative of all the inverter technologies Enphase release a new design at an average rate of 1.4-years between models as the Enphase IQ7 range is a 7th generation product within 10 years. Internal temperature is cooled using a fanless design maintaining an exceptional IP 67 weather rating. With such innovation no major international awards are related directly to the Enphase IQ7 range at the time of writing.

Less than desirable, Enphase IQ7 and IQ7+ is battery compatible only via an AC coupling connection method. For ease of integration, the Enphase AC battery provides a seamless one brand solution when an Envoy S Metered communications gateway has been installed. 3rd party AC coupled battery devices are also compatible with integration though would require a separate communications gateway and monitoring system, such as the Tesla Powerwall 2.

Enphase iQ7 and iQ7 Plus data sheet >

Enphase Microinverter IQ-7+


iQ7 Design; SUPERIOR.
  • AC Coupled battery compatibility with selected battery technologies.
  • New release.
  • Fanless.
  • Major internationally recognised award.
  • CE certified.
  • Innovative.
  • IP 66.


Features of the IQ7 and IQ7+ relate more directly to the system as a whole which includes such components as the Envoy S Metered communications gateway, essential to the function of the microinverter system. Although not explicitly built for displaying local production information, as the data is intended to be viewed through the Enphase MyEnlighten portal, the Envoy S Metered gateway presents only basic LED function. Which facilitates expended consumption monitoring alongside solar production information. With a limited local display, ensuring ease and access to such data is vital then, and that is where the Enphase IQ7 system (through the Envoy S Metered) thrives with the essential communication forms of WiFi, Ethernet, or mobile network (optional extra).

As a double bonus, the need for an inbuilt DC isolator is obsolete with microinverter technology, and Maximum Power Point Tracking is achieved at each solar panel. Through such, the Enphase IQ7 facilitates mandatory module-level optimisation where shade losses affect the shaded panels only and not a whole string. If required, Rapid Shut Down technology is integrated within each IQ7 device. Falling just shy of outstanding in the features department installer software support requires the ability to adjust operational parameters remotely. All in all a very feature rich inverter technology as standard.

Enphase Microinverter IQ-7+


iQ7 Features; ELITE
  • 2 MPPTS.
  • Basic LED.
  • WiFi & Ethernet (plus 4G optional).
  • Manufacturer supplied module-level optimisation options.
  • No manufacturer supplied module-level rapid shutdown options.
  • Manufacturer supplied expanded monitoring options.
  • Mandatory optimisation shadow management.
  • Installer remote access support is rated at - firmware updates.


Searching for the pinnacle in various performance specifications? The Enphase IQ7 plus inverter technology is almost that. Aside from the exceptional European Weighted Efficiency of 97% as the only blemish in a perfect score. The IQ7 plus registers outstanding for different temperature extremes operating from -40oC all the way through to +65oC. Weight concerns are minimal at 1kg per device and noise emission is obsolete.

Enphase Microinverter IQ-7+


iQ7 Performance; ELITE
  • 97% European weighted efficiency.
  • Min temperature range -40°C (-40°F).
  • Max temperature range +65°C (140°F).
  • Temperature derating not listed.
  • Weight 1 kg (2.2lbs).
  • Noise emission obsolete.


Warranty conditions vary between the regions. Locations such as the US enjoy an outstanding 25-year part and service warranty as standard. Potentially more enduring environments such as Australia are limited to a 10-year parts and service warranty. Concerning inverter guarantees internationally 10-year parts and service is highly respectable. To assure such warranty conditions are met an authorised Enphase installer network does exist, unfortunately, there are no added end-user benefits such as an extended warranty.

Enphase Microinverter IQ-7+


iQ7 Guarantee; ELITE
  • 10-year parts warranty.
  • 10-year service warranty.
  • Authorised installer network with no end-user benefits.


One of the better manufacturer produced monitoring platforms, however, lacklustre if viewing through the free end-user portal Enphase MyEnlighten. Has the potential to be so much more and probably is the software one would expect when using the paid subscription for the EnergyManager portal. > (Coming Soon).

Enphase Microinverter IQ-7+


iQ7 Software; SUPERIOR
  • EnergyManager portal
  • iOS & Android app.
  • Alerts & fault diagnosis.


Easily one of the most versatile solar technologies for any given installation, the Enphase IQ7 solar inverter package offers far more than basic DC to AC conversion. It is an entire energy production and management solution built with end-user experience in mind. A result ensuring full control over your energy production investment and in turn greater chance of consistent bill reduction.


iQ7 Overall; ELITE
  • Design 4.2
  • Features 4.4
  • Performance 4.3
  • Guarantee 4.5
  • Software 4.0
[ 4.8 - 5 ] The pinnacle of certified specification.
[ 4.3 - 4.7 ] A rare calibre of technology produced by the industry elite.
[ 3.8 - 4.2 ] Specifications which are exceedingly superior to that of the industry average.
Very Good
[ 3.3 - 3.7 ] Advanced technology against the industry average.
[ 2.8 - 3.2 ] Better than the industry average is that of which strives a portion better.
[ 2.3 - 2.7 ] A score within this bracket is considered the industry average specification.
[ 1.8 - 2.2 ] Considered below the industry mainstream average.
[ 1.3 - 1.7 ] There's better, there's also worse.
[ 0.8 - 1.2 ] Far below the modern industry average.
[ 0.3 - 0.7 ] Possesses specifications which are absent or unverified by a certified testing institute.
[ 0 - 0.2 ] Unlikely for technology manufactured in the modern era.


How was the score for the Enphase IQ7 calculated? By utilising the Solar Review Inverter Assessment Criteria V2.3 >


  1. I would like to be able to see what each solar panel puts out but sunpro says they don’t do that. And they charge too much for the app . on line. Even though the salesman said I wood be able to do that

    • The best you’re going to get for free is via the mobile application available on both Apple & Android. View: Enlighten APP > ARRAY > DAY, MONTH, YEAR or LIFETIME data available in kWh values only. Unfortunately, the desktop MyEnlighten portal doesn’t seem to have this feature. Further advanced insight can only be achieved through purchasing the Enlighten Manager subscription.

  2. Approximately 15 months ago I had a 5.4Kw Enphase system installed. I am now increasing with a new additional system of 4.6Kw, a total of 10Kw. When I purchased my original system, I was advised that this system is the best micro invertor Enphase system available. Now, I am told that my original micro Enphase system is obsolete and I need to upgrade to the new micro invertors at a premium cost. Your claimed performance of the new micro invertors up to +65c is in my mind pointless as my new panels, Qcell quantum, have a reduction in performance with any temperature above 25c. As I am using a different supplier to install my additional Enphase system, what interface issues will I experience in interfacing with my original system? How can I have access to observe the individual performance of each solar panels with these two separate systems?

    • As one of Enphase’s key selling points is that the system is beautifully modular, you shouldn’t have to upgrade the existing systems Enphase micro-inverters, which at a guess given the timeframe of installation would be an Enphase S series micro (5th Generation)? Depending on which Envoy gateway you have, maybe this might need upgrading to the Envoy-S Metered version? You shouldn’t have too many interface issues if you have the correct gateway. You can view total kWHs in the basic Enphase MyEnlighten (mobile) software. However, if you wish to view peak power and other advanced fetures you will need to purchase the software upgrade to Enphase Enlighten Manager.

      Requesting addition community insight on multiple Enphase product pairings?

  3. I can not obtain service from All American Solar to get my wifi system working. It worked at the start but then has not worked since August of 2018. Can anyone assist me in correcting this issue?

    • Press and hold the WPS button on the wireless router for a few seconds. On most routers, a WPS indicator begins flashing. If you are not using the Installer Toolkit mobile app, initiate a WPS connection by pressing and holding the Envoy-S AP Mode button for 5 seconds. The Network Communications LED begins flashing green. Within three minutes the Network Communications LED lights solid green, indicating a successful connection to Enlighten. If the Network Communications LED remains off or lights solid amber, see Troubleshooting.

  4. If you are located in a remote area WITHOUT INTERNET SERVICE You will not be able to Set Up and Configure the Enohase IQ-7 Microinverters AND Envoy S.


    We called the Enphase Tech Support and they;

    1) Have ZERO Technical Knowledge in PV Systems and only read through a Script;

    2) Cannot send you PRECONFIGURED IQ-7 COMPONENTS for Remote Locations that have no Internet Service;

    3) YOU CANNOT SETUP THE IQ MICROINVERTERS WITH THE ENVOY S. The Envoy S is required to update its Software via the INTERNET;



    Note: You also need an Internet Service to Troubleshoot the ENPHASE IQ SYSTEM. Again, without an Internet Connection you will not be able to find or correct any IQ-7/ENVOY S ERRORS OR SET UP ISSUES.

    • This is a very good insight and a very good point which is not part of the current Solar Review Inverter Assesment Criteria (V2.3) in where a cross-section of prospective solar shoppers require such isolation. Remote operational features will be considered and no doubt integrated into V2.4. Thank you for contributing valuable insight and assisting Solar Review to evolve.

    • I have installed several Systems with IQ7,s , and they work right out of the box. Plug and play. The Envoy unit is only neccesary when you want to monitor the production etc. If there is no internet at the site, you shouldn,t bother about an Envoy…

      • Hi, you seem to understand the IQ7 inverter system. I’m a DIY and am installing just 6 panels with IQ7 inverters. The cabling system confuses me as it seems to be a series connection between inverters without two wires going into a junction box to provide the 240-volt power supply to the home panel. What am I missing?

    • The envoy-s has a Ethernet connection port, so run any cable to it from any router to give it a local network IP address. Any laptop, tablet or smartphone can connect to this router. Now although the router has no internet connection in any device that can launch a browser you can enter the IP address of the local envoy-s. So go to the device, enter installer mode, set the number of micros, batteries and Q-relays, scan for devices and when all found set the power grid profile for your country, region, system config as you require, let it propagate then slide the commission switch to turn everything on. If your router has wireless connectivity and there is a wireless modem on your region – or a satellite phone, you can see everything on an installer enlighten manager for the site. Enter array and micro details and you have a defined, commissioned system to the best of my knowledge – as a power user with full installer access, but not an installer myself.

  5. I live in California and waiting to get my solar system installed. Going with LG Neon 2 335 watt panels. My installer is installing IQ7 Micro Inverters. What i want to know is, will there be any advantage of installing IQ7+ inverters instead of the IQ7? Please advice. Thank you

    • Potentially not much apart from the fact you could see a few higher numbers in the peak power section of the monitoring platform. At the end of the day you’ll rarely use this function but refer to the Wh/kWh view which is where true performance is determined. Inverter oversizing is a great thing and the manufacturers even endorse it. One of the major reasons many install on the smaller Enphase variant is where network/grid limitations are in place. Such limitations are factored on the AC output of the combined inverter capacity and not the DC input (Array Capacity) which allows for an overall larger system and overall greater kWh. Find out if certain network limitations are at play in the form of max export capacity or feed-In tariff qualification.

    • I would match a 330W panel with a 290W micro IQ7 Plus for maximum economic return by my analysis with 5 years of daily, personal data.

  6. I am being told by different Solar installers that the Enphase reliability in Central Texas is not good and they will not install them. Also I know that Enphase change their warranty to 25yrs but this does not include labor for repair, so this maybe the reason.
    Can you tell me what is the FIT rate on the IQ7 & IQ7+ product. I look at Enphase and they only give MTBF of 300yrs after the infant mortality phase of the bath tub curve, which they state is around 2-3 weeks, but never give FIT rates for either the infant mortality or the bottom of bath tub curve (random failure rate).

    • You can configure your system in that way but you will need to add some equipments to prevent the current of your system to go directly to the grid, I dont remember the names of these extra equipments but surely if you contact enphase they will assist you

  7. Had my Enphase system installed Oct of 2014 17 panels with Enphase Part #800-00221-r1 micro inverters. Sorry, don’t know the model number. These started to fail June of 2018 (2), and 1 each in April, May, June, and July. Vivint Solar owns the system and services when needed. They must be backed up or only come out when a number fail because the service to replace the failed inverters took place Dec.26, 2019. They want me to increase the number of panels for the power usage that I pay the local utility company (PG&E). The new system does not use Enphase or micro inverters any longer. I declined their offer as the contract I have now costs me 15 cents a kW/hour and PG&E average is 25 cents. My question to you is there an Enphase unit that I can upgrade to that will have a greater life expectancy that won’t break the bank if I buy out Vivint?


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