Fronius review

Fronius - Inverter Reviews

4.8

Based on 382 ratings

Finn's Fronius Inverters Review & Verdict

Finn Peacock has been a Chartered Electrical Engineer since 1998, and is ex-CSIRO

Fronius inverters are brilliant: reliable, high performance with a very smart optimisation algorithm to squeeze lots of energy from panels even with partial shade or on multiple roof areas.

But beware: a Fronius-powered solar system is only as good as the designer designing it and the installer installing it!

Make sure you buy the Fronius GEN24 - it is better and quieter than its 'SnapINverter' predecessor. And if you choose to upgrade to batteries later, the inverter can be software-upgraded to control batteries at any time for $650 to $1000 depending on the inverter size.

Fronius Inverters: Pros & Cons

  • Brilliant local support and warranty.
  • Ethical approach to full life cycle, packaging, repairability and recycling.
  • Thoughtful connection area makes it easy to install in a very neat and compliant manner.
  • High DC input current for modern panels and flexible parallel arrays.
  • Great surge capacity for hybrid output during a blackout.
  • Open source compatibility for smart control of other loads.
  • Compatible with the excellent Wattpilot EV charger.
  • 40-second delay on hybrid backup is an unmissable indication you need to conserve energy.
  • The fan means it stays cooler, lasts longer and yields more energy.
  • The fan makes some noise, but new models are very quiet.
  • 40-second delay on backup means you'll need to reset the clock on the oven.
  • Premium price (but you get what you pay for)
  • 53Hz output during a blackout means hybrids don't play well with some appliances or any other solar inverter.
  • Old and new Fronius show up on the same Solarweb portal but they do not talk to each other or coordinate output. There can only be one Gen24 running in a power outage.
  • The well-loved SnapINverter series is being phased out.

About Fronius

Fronius Customer Service: 03 8340 2900

Fronius is a European company that was established by founder Günter Fronius in Austria in 1945. Mr. Fronius kicked off with a repair shop for radios and electrical equipment and soon started making battery chargers, then welding transformers.

The company grew over time from being a welding and battery charger manufacturer to become one of the most prominent European players in the solar hardware market. Its solar division has been operating since 1992, so they have decades of experience - and this shows in Fronius inverter products.

In late 2010, Fronius opened its Australian office in Melbourne where it not only provides customer service and technical assistance, but also offers product demonstrations and training courses.

Fronius make some of the best inverters in the world. They once were playing catchup with SMA in terms of industry reputation and quality, but I would argue they have well and truly done so in more recent years. I would happily have one of these inverters on my house and Fronius is currently a SolarQuotes recommended inverter brand

In the 2023 SQ Installers' Choice Awards, Fronius achieved the top spot for the third year in a row - and quite convincingly. It was also voted by installers as offering the best after-sales support.

Fronius inverters are easy to 'export limit'. But you do have to buy the 'Fronius Smart Meter (FSM)' accessory to do this. The hardware costs around $250 for a single phase system and installation can cost up to a couple of hundred bucks..

The FSM also allows full consumption monitoring (over and above standard solar monitoring); although I am not a fan of the Fronius SolarWeb monitoring software. Personally, I prefer Solar Analytics and always recommend adding Solar Analytics to your Fronius inverter - using that for monitoring instead (or in addition to).

Fronius solar inverters usually come with 2 solar inputs (or MPPTs). Their MPPT efficiency is legendary. And if you have a symmetrical east/west facing roof, you can often put both the east and the west array into one input - leaving the second inverter input free for a third roof area.

The only tech-related downside with the Fronius hardware I am aware of is in relation to their inverters being fan cooled. While this improves efficiency and longevity, it can be rather noisy in the older SnapINverter models; particularly on hot days. Keep them away from living areas! The noise isn't such an issue with the GEN24 models. 

You'll also pay more for a Fronius inverter than many other brands; but that extra cash is money well-spent given the quality and bearing in mind an inverter is the true workhorse of a solar power system. 

Fronius Solar Inverters Available In Australia

The product lines available in Australia for some years were the Fronius Primo (single phase) and Symo (three-phase). These have proven their mettle in Australia's often harsh conditions.

More recent additions are the Primo and Symo Gen 24 Plus. These are hybrid inverters designed for use in conjunction with batteries. However, a really interesting feature is PV Point, which enables backup power without a battery supplied to a dedicated power point installed near the battery or inside the home. Assuming sufficient solar power resources are available, it can provide a maximum 3kW during a blackout situation - but watch out for clouds!

There's also a non-hybrid Primo Gen 24 available - which doesn't have the PV Point feature. 

Various specifications and estimated pricing for Fronius gear can be found on our solar inverter and hybrid inverter comparison tables.

Fronius Solar Inverter Warranty Notes

All Fronius string inverters are accompanied by 5 years Fronius Warranty Plus. However, by registering at www.solarweb.com, customers can receive an additional 5 years warranty free of charge. But note that while the first 5 years covers parts and warranty, the second only covers parts.

If you should experience what you believe to be a warranty related issue with your Fronius inverter, you should first contact the original installer of the unit. But if that installer is no longer around, don't panic.

Fronius advise that in this situation they first require the customer to find an qualified solar installer to verify the issue with the inverter - but this needs to be paid for my the customer. Once the issue has been confirmed, the installer will then contact the company on your behalf. Fronius will then work with the installer to arrange for replacement of the inverter. If a customer needs help in finding an installer, the company is able to make a recommendation.

Do you own one of these inverters? Share your experiences with other Australians by leaving a Fronius inverter review.

Fronius has 16 solar inverters in our database

Filter by:

Price 
Inverter Size 
Phase type 
Model number
Approx Price
Inverter Size
Max Efficiency (%)
# of MPPT's
Phase Type
Primo 4.6-1
$2200
4600W
98.1%
2
Single phase
Primo 5.0-1 AUS
$2356
4600W
98.1%
2
Single phase
Primo 5.0-1
$2356
5000W
98.1%
2
Single phase
Primo 6.0-1
$2967
6000W
98.1%
2
Single phase
Primo 8.2-1
$3034
8200W
98.1%
2
Single phase
SYMO 5.0-3-M
$2500
5000W
98%
2
Three phase
SYMO 6.0-3-M
$2570
6000W
98%
2
Three phase
SYMO 7.0-3-M
$3160
7000W
98%
2
Three phase
SYMO 8.2-3-M
$3560
8200W
98%
2
Three phase
SYMO 10.0-3-M
$3600
10000W
98%
2
Three phase
SYMO 12.5-3-M
$4000
12500W
98%
2
Three phase
SYMO 15.0-3-M
$4100
15000W
98%
2
Three phase
Primo GEN24 5.0
$2300
5000W
97.2%
2
Single phase
Primo GEN24 6.0
$2700
6000W
97.2%
2
Single phase
Primo GEN24 8.0
$3,800
8000 W
97.3%
2
Single phase
Primo GEN24 10.0
$4150
10000 W
97.3%
2
Single phase

 

Fronius Reviews (382)

Show Most Relevant reviews from All time

  • 5 star 341
  • 4 star 27
  • 3 star 4
  • 2 star 2
  • 1 star 8

View Timeline

The Gen24 inverter can be upgraded easily to a full hybrid inverter if I install a battery.
The inverter app is terrific; it guides me in using solar production most efficiently through the day.

Manufacturer Reply

Hi Claire,
It's great to hear you are happy with your Fronius Inverter and application.
Thanks for letting us know.
Kind Regards
Fronius Australia.


Panel Brand

REC

System Cost

$8,000 to $10,000

System Size

6.6kW

Installed By

The Inverter has been performing very well. With the addition of the Fronius smart meter, the inverter unit has been extremely helpfull with regards to the monitoring of our system and household power load.

Panel Brand

REC

System Cost

$10,000 to $12,500

System Size

8kW

Installed By

We cannot get the information we need to see what we are saving

System Cost

$8,000 to $10,000

System Size

6.6kW

Installed By

Has not been functioning properly for a number of weeks - it appears to have lost communication with SolarWeb as well as my Fronius EV charger (WattPilot). Despite the thousands of dollars I spent on the charger because of its 'intelligence', it can no longer function on eco mode.

Manufacturer Reply

Hi Brian,
I do apologize and we want to be able to assist in reconnecting your system.
Please reach out to our Technical Support team or customer care team for further assist and instructions.
Thank you,
Fronius Australia.


System Cost

$4,000 to $6,000

System Size

5kW

Installed By


Manufacturer Reply

Hi Nathan,
Thank you for leaving us 5 stars!
Kind Regards,
Fronius Australia


System Cost

$10,000 to $12,500

System Size

10kW

Installed By

Love this inverter. Though the battery will come later, I wanted power from my solar when the grid failed. This Gen 24 gave me 3 kW after a short delay on a PV point. This is a (power point) that only comes alive in a grid down situation.

Manufacturer Reply

Good Afternoon Pieter,

Thanks you for taking the time to leave feed back.

Kind Regards,
Fronius Australia


Panel Brand

Astronergy

System Cost

$4,000 to $6,000

System Size

8kW

Installed By


Manufacturer Reply

Hi James,

Thanks for taking the time to leave us a positive review.

Kind Regards,
Fronius Australia


System Cost

$10,000 to $12,500

System Size

10kW

Installed By

Comes with a great app thay shows usage

Manufacturer Reply

Hi Dan,

We are happy to hear you are loving our Solar.web app.

Kind Regards,
Fronius Australia


System Cost

$10,000 to $12,500

System Size

10kW

Installed By


Manufacturer Reply

Hi Gavin,

Thanks for letting us know you like our product.

Kind Regards
Fronius Australia


System Cost

$6,000 to $8,000

System Size

6kW

Installed By

Very good performance

Manufacturer Reply

Hi Babychen,

Thanks for letting us know you like our product.

Kind Regards
Fronius Australia


System Cost

$2,000 to $4,000

System Size

6.6kW

Installed By

Awesome as I can watch it on my phone all anywhere any time and can adjust our usage.

Manufacturer Reply

Hi Kevin,

It is great to hear you are loving your solar system and the Solarweb app, thanks for letting us know.

Kind Regards
Fronius Australia


Panel Brand

I don't know

System Cost

More than $20,000

System Size

10kW

Installed By


Manufacturer Reply

Good afternoon Mary,

Thanks for letting us know what you think we are glad you like it.

Kind Regards
Fronius Australia


System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By


Manufacturer Reply

Good Morning Anthony,

Thank you for letting us know you think we are 5 star.

Kind Regards
Fronius Australia


System Cost

$6,000 to $8,000

System Size

8kW

Installed By


Manufacturer Reply

Hi Robin,

Thank you for leaving your review.

Kind Regards,
Fronius Australia


System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By


Manufacturer Reply

Hi Kevin,

Thank you for leaving your review, we appreciate you taking the time.

Kind Regards,
Fronius Australia


System Cost

$12,500 to $15,000

System Size

10kW

Installed By


Manufacturer Reply

Hi Courtney,

Thanks for taking the time to leave a 5 star review we really appreciate it.

Kind Regards,
Fronius Australia


System Cost

$10,000 to $12,500

System Size

13kW

Installed By

System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By


Manufacturer Reply

Good Afternoon Ross,

We are happy to hear you are loving your Fronius inverter.

Kind Regards,
Fronius Australia


System Cost

More than $20,000

System Size

13kW

Installed By


Manufacturer Reply

Hi Nick,
Thank you for your feedback and support!
Kind Regards,
Fronius Australia


System Cost

$12,500 to $15,000

System Size

20kW

Installed By


Manufacturer Reply

Hi Gerard,
Thank you for your feedback and support!
Kind Regards,
Fronius Australia


System Cost

$10,000 to $12,500

System Size

8kW

Installed By

Inverter was original installation and not part of the recent Tesla battery install.

Manufacturer Reply

Hi Fred,
It's great to hear you are happy with your Fronius Inverter.
Thanks for letting us know.
Kind Regards
Fronius Australia.


System Cost

$15,000 to $20,000

System Size

13kW

Installed By


Manufacturer Reply

Dear Tracey,
Wow, a perfect score! Thank you for your support and patronage.
Kind Regards,
Fronius Australia.


System Cost

More than $20,000

System Size

13kW

Installed By


Manufacturer Reply

Dear Leonie,
Your satisfaction is our top priority, thank you!
Kind Regards,
Fronius Australia.


System Cost

$6,000 to $8,000

System Size

8kW

Installed By

An incentive was offered by Sungain Solar for this review. Learn more here.


Manufacturer Reply

Dear Mike,
We're delighted that you enjoyed our service, thank you!
Kind Regards,
Fronius Australia,


System Cost

$6,000 to $8,000

System Size

5kW

Installed By


Manufacturer Reply

Dear Matthew,
Your support means the world to us, thank you!
Kind Regards,
Fronius Australia.


System Cost

$6,000 to $8,000

System Size

7kW

Installed By


Manufacturer Reply

Dear Steven,
We're delighted to have exceeded your expectations, thank you!
Kind Regards,
Fronius Australia.


System Cost

$12,500 to $15,000

System Size

9kW

Installed By

An incentive was offered by Sungain Solar for this review. Learn more here.

Not the most up to date model, very noisy when running

Manufacturer Reply

Dear Chris,
Thank you for your feedback!
Please get in touch with your installer regarding the noise level of the fan. Our Technical Support team will then be able to assist your installer.
Kind Regards,
Fronius Australia.


Panel Brand

Jinko Solar

System Cost

$12,500 to $15,000

System Size

13kW

Installed By


Manufacturer Reply

Dear Peter,
We're thrilled you had such a positive experience!
Kind regards,
Fronius Australia.


System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By

System Cost

$10,000 to $12,500

System Size

13kW

Installed By

I love the fact that we opted for the PV point, really helps in power outages during the day.

System Cost

$10,000 to $12,500

System Size

13kW

Installed By

System Cost

$12,500 to $15,000

System Size

8kW

Installed By

I went for FRONIUS inverter.

Manufacturer Reply

Dear Nirmal,
Thank you for putting your trust into our products.
Kind Regards,
Fronius Australia.


Panel Brand

Trina

System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By

An incentive was offered by Regen Power for this review. Learn more here.


Manufacturer Reply

Dear Tim,
Thank you for the 5 star rating. We highly appreciate your response.

Kind Regards,
Fronius Australia.


System Cost

$4,000 to $6,000

System Size

5kW

Installed By


Manufacturer Reply

Dear Sue,
Thank you for providing us a 5 star review, we appreciate you taking out your time.

Kind Regards,
Fronius Australia.


System Cost

$4,000 to $6,000

System Size

10kW

Installed By


Manufacturer Reply

Dear Jon,
Thank you for your feedback and support!

Kind Regards,
Fronius Australia


Panel Brand

Canadian Solar Inc

System Cost

$6,000 to $8,000

System Size

6kW

Installed By

System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By

An incentive was offered by Nexen Energy Solutions for this review. Learn more here.

System Cost

$10,000 to $12,500

System Size

9kW

Installed By

It doesn’t always connect to the app which is annoying but not a major issue.

System Cost

$10,000 to $12,500

System Size

6kW

Installed By


Manufacturer Reply

Dear Deb,
Thank you for the 5-star rating. If there’s anything we can do to improve our offering, please let us know.
Kind Regards,
Fronius Australia.


System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By

We have had this brand at a previous property and a very happy with it.

System Cost

$6,000 to $8,000

System Size

6kW

Installed By

An incentive was offered by Regen Power for this review. Learn more here.


Manufacturer Reply

Dear Maria,
Wonderful to see you are happy with your Inverter
Thank you for taking the time to let us know.
Kind Regards,
Fronius Australia.



System Cost

$4,000 to $6,000

System Size

6kW

Installed By

Fronius is efficient and quiet, great app to track power import and export

Manufacturer Reply

Dear Samuel,
Thank you for your response.
We are happy to hear that you are enjoying your inverter and its features,
Kind Regards,
Fronius Australia.


Panel Brand

Canadian Solar Inc

System Cost

More than $20,000

System Size

10kW

Installed By

An incentive was offered by Sungain Solar for this review. Learn more here.

The inverter has worked very well - and it's battery ready.

Manufacturer Reply

Dear Joseph,
Thank you for your review. Its wonderful to see that you are happy with your inverter.
Kind Regards,
Fronius Australia.


System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By

It is very noisy. While it is in the garage I can hear it when I am working in the study inside the house. Its not really a problem though

Manufacturer Reply

Hi Adrian,
Thank you for your feedback!
Please get in touch with your installer regarding the noise level of the fan. Our Technical Support team will then be able to assist your installer.
Kind Regards,
Fronius Australia.


System Cost

$15,000 to $20,000

System Size

13kW

Installed By


Manufacturer Reply

Dear William,
We are grateful for the 5 star review you have given us!
Kind Regards,
Fronius Australia.


System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By


Manufacturer Reply

Dear Andrea,
We are grateful for your 5 star review.
Kind Regards,
Fronius Australia.


System Cost

$6,000 to $8,000

System Size

5kW

Installed By


Manufacturer Reply

Dear Fleur,
Thank you for your feedback and support!
Kind Regards,
Fronius Australia.


System Cost

$6,000 to $8,000

System Size

7kW

Installed By

So far it's going great. App is easy to use.

Manufacturer Reply

Dear Bruce,
Thank you for leaving us 5 stars!
Kind Regards,
Fronius Australia.


Panel Brand

Q.PEAK DUO MO-G10 (Other)

System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By


Manufacturer Reply

Hi Glenn,
Thank you for the 5 star review.
We couldn't be more grateful.
Kind Regards,
Fronius Australia.


System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By


Manufacturer Reply

Hi John,
Thank you for your review.
We appreciate the support.
Kind Regards,
Fronius Australia.


System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By

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