The Fronius Primo inverter is a single-phase string inverter with a maximum efficiency of up to 98.1%. The Primo has a transformerless feature, making it an excellent solar inverter for households. 

This solar inverter is manufactured by Fronius, a prominent brand within the innovative solar industry. The Primo inverter is among the most reliable and productive solar inverters for residential homes. 

But compared to other solar inverter models available on the market, the Fronius Primo weighs around 21.5 kg, a bulkier offering than its peers.

Nonetheless, the inverter has risen in popularity after Fronius released a new design for it over eight years ago. Its outstanding snap-in style makes for effortless installation and servicing. 

Solar inverters are critical in transforming direct current (DC) electricity produced from the solar panels to alternating current (AC) for electronic appliances. As a consumer, you should analyse each inverter carefully.

This comprehensive Fronius review will cover its Primo inverter product line. We’ll highlight its technical specifications, features, price, and other notables to help you determine if it’s the right addition to your solar system. 

Let’s get into it!

What is the Fronius Primo Inverter?

Fronius Primo Inverter is a smart grid-ready and single-phase solar inverter manufactured by Fronius. It efficiently operates at an input voltage of up to 600 V with a maximum input voltage of 1000 V for commercial applications. Depending on the model, this provides enhanced efficiency of 98% to 98.1%.

Fronius Primo inverter

The Fronius solar inverter comes with an ingenious Superflex Design that ensures high flexibility within the system design. It includes a communication package with accepted WLAN. It’s also packed with features like energy management, multiple interfaces, and more to help you monitor the performance.

Along with the Fronius Symo inverter and the three-phase Fronius Gen24 Plus hybrid inverters, Fronius Primo is among the solar inverters designed for a small solar panel system

However, only Fronius Primo and Fronius Symo inverters are a solid basis for a solar system in domestic homes. These solar inverter products are in Fronius’ SnapINverters product line. SnapInverters are known for their innovative, straightforward, and safe technology, making them flexible and easy to install.

Even though Fronius started as a welding equipment manufacturer in Pettenbach, Austria, back in 1945, it has been in the solar inverter industry since its first solar inverter was launched in 1995. 

Since then, Fronius has been one of the leading solar inverter manufacturers in the world. In fact, the company dominated the solar inverter global market in 2019, according to U.S.-owned analyst Wood Mackenzie.  

Fronius inverters are manufactured in Austria, yet developed their global presence with over 30 national Fronius companies worldwide and service partners in more than 60 countries. This includes Fronius Australia, with a headquarters in Tullamarine, Victoria

Fronius Primo Solar Inverter Range 

Fronius Primo inverter has distinct output power levels based on the model. It has power categories ranging from 3,000 Watts to 8,200 Watts, with a voltage range of 80 to 800 volts

The product model range includes:

  • Fronius Primo 3.0-1,
  • Fronius Primo 3.5-1,
  • Fronius Primo 3.6-1,
  • Fronius Primo 4.0-1,
  • Fronius Primo 4.6-1,
  • Fronius Primo 5.0-1,
  • Fronius Primo 5.0-1 Aus,
  • Fronius Primo 5.0-1 SC,
  • Fronius Primo 6.0-1, and
  • Fronius Primo 8.2-1

Fronius Primo Solar Inverter Technical Specifications 

Here are the technical specifications of the Primo solar inverter from the datasheet of Fronius inverters

Model Input DataPrimo 3.0-1Primo 3.5-1Primo 3.6-1Primo 4.0-1Primo 4.6-1Primo 5.0-1Primo 5.0-1 AusPrimo 5.0-1 SCPrimo 6.0-1Primo 8.2-1
Number of MPP trackers2222222222
Max. input current
(Idc min 1 – Idc max 2)
12.0 A / 12.0 A12.0 A / 12.0 A12.0 A / 12.0 A12.0 A / 12.0 A12.0 A / 12.0 A12.0 A / 12.0 A12.0 A / 12.0 A12.0 A / 12.0 A18.0 A / 18.0 A18.0 A / 18.0 A
Max. array short circuit current
(MPP1 / MPP2)
18.0 A / 18.0 A18.0 A / 18.0 A18.0 A / 18.0 A18.0 A / 18.0 A18.0 A / 18.0 A18.0 A / 18.0 A18.0 A / 18.0 A18.0 A / 18.0 A27.0 A / 27.0 A27.0 A / 27.0 A
DC input voltage range
(Udc min – Udc max)
80 – 1000 V80 – 1000 V80 – 1000 V80 – 1000 V80 – 1000 V80 – 1000 V80 – 1000 V80 – 1000 V80 – 1000 V80 – 1000 V
Feed-in start voltage
(Udc start)
80 V80 V80 V80 V80 V80 V80 V80 V80 V80 V
Usable MPP voltage range80 – 800 V80 – 800 V80 – 800 V80 – 800 V80 – 800 V80 – 800 V80 – 800 V80 – 800 V80 – 800 V80 – 800 V
Number of DC connections2 + 22 + 22 + 22 + 22 + 22 + 22 + 22 + 22 + 22 + 2
Max PV generator output
(Pdc max)
4.5 kW peak5.3 kW peak5.5 kW peak6.0 kW peak6.9 kW peak7.5 kW peak7.5 kW peak7.5 kW peak9.0 kW peak12.3 kW peak

General Data
All Fronius Primo Inverters
Dimensions (height x width x depth)645 x 431 x 204 mm
Weight21.5 kg
Degree of protectionIP 65
Protection class1
Overvoltage category (DC / AC)1)2 / 3
Night-time consumption< 1 W
Inverter designTransformerless
CoolingRegulated air cooling
InstallationIndoor and outdoor installation
Ambient temperature range-40 – +55 °C
Permitted humidity0 – 100%
Max. altitude4,000 m
DC connection4x DC+ and 4x DC- screw terminals 2.5 – 16 mm2
AC connection3-pole AC screw terminals 2.5 – 16 mm2
Certificates and compliance with standardsDIN V VDE 0126-1-1/A1, IEC 62109-1/-2, IEC 62116, IEC 61727, AS 4777-2, AS 4777-3, G83/2, G59/3, CEI 0-21, VDE AR N 4105
Country of manufactureAustria

Protective Devices
All Fronius Primo Inverters
DC insulation measurementYes
Overload behaviourOperating point shift, power limitation
DC disconnectorYes
Reverse polarity protectionYes

All Fronius Primo Inverters
WLAN / Ethernet LANFronius Solar.web, Modbus TCP SunSpec, Fronius Solar API (JSON)
6 inputs and 4 digital in/outInterface ripple control receiver
USB (A socket)2)Datalogging, inverter update via USB flash drive
2x RS422 (RJ4S socket)2)Fronius Solar Net
Signalling output 2)Energy management (potential-free relay output)
Datalogger and WebserverIncluded
External input 2)50-Meter Interface / Input for overvoltage protection
RS485Modbus RTU SunSpec or meter connection

1) According to IEC 62109-1.
2) Fronius Primo 5.0-1, Fronius Primo 6.0-1, and Fronius Primo 8.2-1 are not fully compliant with VDE AR N 4105.

What is the Fronius Primo Solar Inverter’s Output Capacity?

The output capacity of the Primo solar inverter may vary according to the product model. However, its nominal output capacity ranges from 3,000 W to 8,200 W. 

Here is the comprehensive inverter output data of Fronius Primo:

Output DataPrimo 3.0-1Primo 3.5-1Primo 3.6-1Primo 4.0-1Primo 4.6-1Primo 5.0-1Primo 5.0-1 AusPrimo 5.0-1 SCPrimo 6.0-1Primo 8.2-1
AC nominal output (Pac,r)3,000 W3,500 W3,680 W4,000 W4,600 W5,000 W4,600 W5,000 W6,000 W8,200 W
Max. output power / Max. Rated apparent power3,000 VA3,500 VA3,680 VA4,000 VA4,600 VA5,000 VA5,000 V / 4,600 VA5,000 VA6,000 VA8,200 VA
AC output current
(Iac nom
13.0 A15.2 A16.0 A17.4 A20.0 A21.7 A21.7 A21.7 A26.1 A35.7 A
Grid Connection (voltage range)1 ~ NPE 220 V / 230 V (180 V – 270 V)1 ~ NPE 220 V / 230 V (180 V – 270 V)1 ~ NPE 220 V / 230 V (180 V – 270 V)1 ~ NPE 220 V / 230 V (180 V – 270 V)1 ~ NPE 220 V / 230 V (180 V – 270 V)1 ~ NPE 220 V / 230 V (180 V – 270 V)1 ~ NPE 220 V / 230 V (180 V – 270 V)1 ~ NPE 220 V / 230 V (180 V – 270 V)1 ~ NPE 220 V / 230 V (180 V – 270 V)1 ~ NPE 220 V / 230 V (180 V – 270 V)
Frequency (frequency range)50 Hz / 60 Hz (45 – 65 Hz)50 Hz / 60 Hz (45 – 65 Hz)50 Hz / 60 Hz (45 – 65 Hz)50 Hz / 60 Hz (45 – 65 Hz)50 Hz / 60 Hz (45 – 65 Hz)50 Hz / 60 Hz (45 – 65 Hz)50 Hz / 60 Hz (45 – 65 Hz)50 Hz / 60 Hz (45 – 65 Hz)50 Hz / 60 Hz (45 – 65 Hz)50 Hz / 60 Hz (45 – 65 Hz)
Total harmonic distortion< 5%< 5%< 5%< 5%< 5%< 5%< 5%< 5%< 5%< 5%
Power factor
(cos φac,r)
0.85 – 1 ind. / cap.0.85 – 1 ind. / cap.0.85 – 1 ind. / cap.0.85 – 1 ind. / cap.0.85 – 1 ind. / cap.0.85 – 1 ind. / cap.0.85 – 1 ind. / cap.0.85 – 1 ind. / cap.0.85 – 1 ind. / cap.0.85 – 1 ind. / cap.

What is the Fronius Primo Inverter’s Efficiency?

The maximum efficiency of Fronius Primo solar inverters ranges from 98.0% to 98.01%, while the European weighted efficiency is slightly lower at 96.1% to 97.5%, depending on the model. It is relatively higher than alternative brands’ efficiency, which typically falls between 85% and 95% energy efficiency. 

The table below highlights the specific efficiency rate of each product model:

Efficiency Primo 3.0-1Primo 3.5-1Primo 3.6-1Primo 4.0-1Primo 4.6-1Primo 5.0-1Primo 5.0-1 AusPrimo 5.0-1 SCPrimo 6.0-1Primo 8.2-1
Max. efficiency98.0%98.0%98.0%98.1%98.1%98.1%98.1%98.1%98.1%98.1%
European efficiency (ηEU)96.1%96.8%96.8%97.0%97.0%97.1%97.1%97.1%97.3%97.5%
MPP adaptation efficiency99.9%99.9%99.9%99.9%99.9%99.9%99.9%99.9%99.9%99.9%

How Many MPP Trackers does the Fronius Primo Solar Inverter have?

Each Primo solar inverter has two Maximum Power Point (MPP) trackers that you can track with their Dynamic Peak Manager (DPM). 

MPP Trackers work with a wide range of input voltage for DC power and a high voltage system to maximise power extraction under different weather conditions. It also optimises the match between the solar panels and the Primo inverter for maximum power generation.

Fronius has the latest MPP tracking dynamic algorithm called the Dynamic Peak Manager. It adjusts to the solar system’s energy usage behaviour, allowing you to focus on the optimal operating dynamics.  

The Dynamic Peak Manager regularly checks the curves of the solar input. Additionally, it helps you find the Global Maximum Power Point of a solar panel in the partial shade and track the average power by monitoring the minimum and maximum input ratio. 

Does the Fronius Primo Inverter come with an Internal DC Circuit Breaker?

No, Fronius Primo inverters do not have an internal DC circuit breaker. However, they recommend a type A residual current circuit breaker with a trip current of at least 100 mA for their AC connecting cable if it’s required by local regulations and the power supply company.

A residual current circuit breaker (RCCB) is a safety and current sensing device that automatically measures and disconnects circuits whenever a fault happens or excess solar energy surpasses the sensitivity rate. Type A specifically ensures tripping on residual AC currents and residual pulsating DC currents.

Generally, RCCB provides fire protection and protection against earth fault and leakage current. It also offers protection against voltage fluctuation with its filtering device that monitors transient voltage levels. A possible dual termination for cable and busbar connections can also be done when needed. 

Fronius Primo Key Features

Fronius is a leading solar inverter brand with good reason; its inverters possess a wealth of features. These include:

  • SnapInverter Technology

Many PV systems globally have utilised the benefits of SnapInverter technology. The futuristic but straightforward standardised mounting system allows for easy installation and servicing. It’s also innovative and completely safe

The design has a unique feature: the connection point and the power component set section are separate. This means the two are installed separately. This ingenious hinged system enables user-friendly installation and maintenance

You’ll fit the light connection point and all its cabling first, which the power compartment set will follow. 

Before securing the Fronius Primo inverter, you’ll have to place it in an already fixed wall bracket. So if you need to service the inverter, you won’t have to remove the whole model. Instead, you can release the power compartment set. The entire cabling system will be left in place.

The Fronius inverters offer maximum flexible usage as well as integrated functions to help you achieve your top self-consumption rates.  

  • Integrated Data Communication

Fronius Primo solar inverters include the quality of totally integrated data logging. This targets a communication package that uses various interfaces, including Web Server, WLAN, Ethernet, and Energy Management. 

The inverter provides the optimal process overview for the PV system. The technology includes third-party associated connectivity to interfaces like Fronius Solar API, Modbus RTU SunSpec, and Modbus TCP SunSpec.

The open interfaces with each Fronius inverter also allow parallel running with the Solar.web platform.

  • Dynamic Peak Manager

The new MPP (Maximum Power Point) algorithm for tracking called Dynamic Peak Manager dynamically modifies its behaviour by searching for the best operating point

This unique feature automatically inspects the whole characteristic curve regularly. It does this to reach the GMPP (Global Maximum PowerPoint).

  • Integrated Superflex Design

The innovative Superflex design for the Fronius inverter offers the utmost flexibility. It combines impressive technical performance features that make your PV installation process painless and straightforward

The design encompasses two MPP trackers, an elevated system voltage, and a wide voltage range for a DC input. 

Each DC input, and thus each MPP tracker, can absorb the total nominal output associated with the Fronius inverter.

Any Fronius inverter with the design will meet the demands of every running PV system plan within one inverter model. This is possible regardless of where the solar inverter is installed, including irregular roof designs, residual module usage, etc. 

  • Smart Grid-ready Inverter

Fronius Primo inverters are Smart Grid-enabled. They have been equipped to meet the technical requirements of any future grids

There are several intelligent functions called Advanced Grid Features. These features are integrated into the gadgets and comprise various control functions targeting optimal feed-in associated with reactive and adequate power

The smart function design enables a stabilised grid operation with no downtime. This is useful when there’s a very high density in the PV setup. It’s also helpful in preventing any feed-in interference or interruptions linked to yield losses if grid parameters go beyond the thresholds. 

Therefore, with Fronius inverters, there’s a guaranteed yield

Still, in the event of any imposed feed-in restrictions or limitations, the Primo inverters offer dynamic control to the feed-in while capably managing self-consumption. Connecting the meter and setting the top feed-in limit is your only real work.

  • Zero Feed-in Feature

As grid operation numbers increase globally, there’s a stipulated PV feed-in top limit for power as a pre-condition before connecting your system to the solar grid. 

Due to the dynamic reduction in power, Fronius has provided a much-needed solution that allows for top feed-in management. 

This is where the Fronius inverter supplies energy to household consumers before adjusting the system’s output to the optimal energy feed-in according to the grid operator’s permit. 

The zero feed-in associated with these inverters means you won’t need to feed any PV power to the grid.

You can activate the critical grid operator requirements by simply enabling a specific setting found on the web interface for the Fronius inverter. 

  • Active Cooling System

Primo inverter cooling is achieved via a fan-forced air system to enable active cooling. Even though active cooling is somewhat complex, it’s known to enhance performance and reliability compared to standard solar systems that utilise passive cooling.

                                                    Fronius inverter active cooling mechanism

Fronius inverter’s active cooling mechanism

  • Easy Monitoring

Primo solar inverters have easy monitoring because it is suitable with WLAN-enabled system monitoring Fronius Datamanager 2.0 as standard. Its system monitoring includes a dedicated web page that displays current data and a wide range of settings. It also connects to Fronius Solar.web using WLAN or LAN.

Additionally, the system sends automatic service messages via SMS or email in the case of a fault. 

There is also a Fronius Solar.web app that is available for both Android and iOS. You can monitor and view the current solar generation and estimated savings in the app. You can also chart your detailed operating statistics like the voltage and grid voltage. 

Using connected meters, you can also add a Fronius smart meter to control the Primo inverter. The smart meter also lets you monitor energy generation and consumption and can be a perfect addition to completing your monitoring system.

What is the Fronius Primo Solar Inverter’s Warranty?

All Fronius inverters come with a Fronius Warranty Plus, which is a period of five years that covers transportation costs within Australia, labour, and materials in warranty cases. Even better, there’s a free five-year warranty extension (parts only) when you register at Fronius Solar.web. 

Fronius’ warranty period starts when the inverter is dispatched from the Fronius factory. You can claim a warranty if the covered product has a manufacturing defect that affects the operation and performance of the product and if the fault occurs during regular use. 

However, the Fronius warranty doesn’t apply if a fault occurs due to poor transportation, installation, operation, handling, or commissioning. Other exemptions include lack of compliance with the provided installation or operating instructions, poor ventilation, and so on. 

During warranty claim, Fronius offers options of repairment of a defective unit, a replacement for an equivalent unit of the same age, type, and condition, or issuance of a credit note for the market value applicable at the time of the service notification. You can use the credit not to purchase a new Fronius product. 

In Australia, you can get a free five-year warranty, but this is for parts only. You just have to register on Fronius Solar.web within 24 months from installation to get the free warranty. 

If you need additional security, Fronius allows you to purchase an extended warranty period.

Is the Fronius Primo Solar Inverter Reliable? Is the Solar Inverter Safe? 

Yes, the Primo solar inverters are entirely reliable and safe to use. Fronius has acquired certifications proving how it meets the safety standards to make its inverters safe. 

The Primo solar inverters have been approved by the Australian Clean Energy Council for their compliance with the set requirements and standards. 

It also received a Certificate of Suitability from TÜV Rheinland Australia Pty Ltd. As accredited by JAS ANZ, TÜV Rheinland Australia Pty Ltd examined the Primo inverters for compliance with certification standards per ISO/IEC 17065. 

Primo inverters gained the Certificate of Suitability after meeting the standards IEC 62109-1:2010, IEC 62109-2:2011, and AS/NZS 4777.2:20202+A1. 

Fronius also earned various international certifications for their Primo solar inverters:

  • VDE Prüf- und Zertifizierungsinstitut GmbH.

VDE Prüf- und Zertifizierungsinstitut GmbH is an independent and neutral institution accredited nationally and internationally for testing and certification of electrical components, equipment, and systems. They aim to contribute to product safety, consumer protection, and the development of electrical standards. 

Fronius has the following certifications from this institution, certifying that the Primo inverters were tested and proven to have met their requirements:

  • DIN V VDE 0126-1-1/A1,
  • DIN VDE 0126-1-1, and
  • TÜV Rheinland’s Certification.

TÜV Rheinland is one of the world’s leading testing providers, founded 150 years ago. They have highly qualified experts that test technical systems and products worldwide and certify management systems following international standards. 

Being a member of the United Nations Global Compact promotes sustainability and combats corruption. 

Earning a certificate from TÜV Rheinland means that the product has met defined criteria and safety-relevant aspects. The certification is proof of safety and high-quality product. 

Primo inverters earned the following certifications:

  • Certificate of Conformity tested according to IEC 61727:2004,
  • Certificate of Conformity tested according to EN 50438:2013,
  • Certificate of Conformity tested according to EN 50549-1:2019,
  • Certificate of Conformity tested according to IEC 62109-1:2010,
  • Certification of Conformity tested according to IEC 62109-2:2011,
  • Certification of Conformity tested according to IEC 62116:2014,
  • Certification of Conformity tested according to IEC 61000-6-3:2006 + A1,
  • Certificate of Conformity tested according to IEC 61000-6-2:2005,
  • Certificate of Conformity tested according to EN 301 489-1 V1.9.2:2011,
  • Certificate of Conformity tested according to EN 301 489-17 V2.2.1:2012,
  • Certificate of Conformity tested according to EN 300 328 V1.8.1:2012,
  • Certificate of Conformity tested according to NRS 09-2-1:2017, and
  • Certification from Bureau Veritas.

Bureau Veritas is one of the world’s leading certification bodies that provides management systems certification to support clients in improving their performance. 

Fronius acquired a certification from Bureau Veritas after the Primo inverters area was tested for grid protection, functional safety, specified environmental influences, and efficiency

The Primo inverters have been proven to comply with the rules and standards of IEC environmental tests:

  • IEC 61683:1999 – Photovoltaic systems – Power conditioners – Procedure for measuring efficiency,
  • IEC 60068-2-1:2007 – Environmental testing – Part 2-1: Tests – Test A: Cold,
  • IEC 60068-2-6:2007 – Environmental testing – Part 2-2: Tests – Test B: Dry Heat,
  • IEC 60068-2-6:1995 – Environmental testing – Part 2 Vibration (sinusoidal),
  • IEC 6006-2-14:2009 – Environmental testing – Part 2-14: Tests – Test N: Change of temperature,
  • IEC 60068-2-27-2009 – Shock,
  • IEC 60068-2-30:2005 – Damp heat, cyclic (12h + 12h cycle),
  • IEC 60068-2-75:1997 – Hammer tests (IEC 62262:2002 – IK code), and
  • IEC 60068-2-78:2001 – Test cab: Damp heat, steady-state.

Aside from the certifications, the Fronius Primo inverter has warning notices and safety symbols. The symbols on the rating plate and their meaning are:

  • CE mark – it confirms compliance with applicable EU directives and regulations.
  • WEEE mark – a collection of electrical waste and electronic equipment should be collected separately and recycled in an environmentally sound manner following the European directive’s and national law’s standard.
  • RCM mark – symbolises that the inverter was tested in accordance with the requirements of Australia and New Zealand.
  • CMIM mark – symbolises that the inverter complied with Morrocan standards and was tested under IMANOR requirements for import regulations.

In addition, Fronius tested the Primo inverter in terms of noise emission values. The inverter generated a maximum sound power level of < 65 dB(A) (ref. 1 pW) when operating under full load in accordance with IEC 62109-1:2010.

Fronius is a forerunner in global manufacturing string inverters for solar panels. 

The Austrian-based manufacturer’s engineering and designing of Fronius solar inverters are based on over half a century of experience. This makes the company an outstanding leader in manufacturing equipment for power conversion. 

The continued development of solar inverters by Fronius saw the introduction of the SnapInverter range of inverters in 2012. This range, including Primo, is now among the most preferred choices of solar inverters today

This applies to both domestic as well as commercial installations.

Fronius’s excellent reputation has more to do with quality service to customers than sales volumes. However, the quality and reliability of their solar inverters are what have kept them a mainstay in the industry.

Solar inverters are components of a solar system that can become highly complicated. They can also experience problems and faults that affect their performance. This is what solar installers, as well as customers, usually find incredibly frustrating. 

The inverter can malfunction and possibly deactivate the system in case of problems. Thus, the quality and reliability of this component are two critical things that a solar inverter should never overlook. 

Due to its trustworthiness and build quality, the Primo inverter is becoming well-known for household installations. This initially created occasional supply challenges

However, the company’s service network ensured such concerns were addressed in a reasonable timeframe. This led to glowing feedback from satisfied customers. 

The active cooling feature of the Fronius solar inverter generates increased system performance. This makes the inverters highly reliable compared to others with passive cooling systems.  

So, even if excess heat is generated, your Fronius inverter will still perform at optimal levels. 

The easy installation and servicing processes also make the Fronius solar inverters a trustworthy buy. That’s what gives the inverter such a low rate of failure

So, a Fronius inverter should be among your first choices if you’re considering installing a solar system.

If you’re still uncertain that the inverter will meet your needs, you can speak directly to one of Nectr’s experts.

Is the Fronius Primo Solar Inverter CEC-Approved?

Yes, Fronius is an approved brand by Australia’s Clean Energy Council (CEC). Specifically, the Primo solar inverter is part of the list of CEC-approved inverters. This means that Fronius has complied with the requirements and passed the tests and the Australian and IEC standards. 

The Clean Energy Council is a nonprofit and membership-based organisation in Australia that works with the country’s leading renewable energy, energy storage businesses, and solar installers to develop clean energy in the country. They also collaborate with different regulatory bodies and Commonwealth agencies to continuously improve the conduct and standards in the solar industry. 

Additionally. they set strict standards for solar inverters and solar panels. As part of their vision of a country powered by clean energy, CEC has increased their training and support for installers and lessened poor conduct from retailers.

One requirement is to have a product approved by CEC, meet the standards, and pass the tests. Another condition is to present and submit proof of registration provided by the manufacturer or the certificate holder. 

Since the Primo inverter is on the list, this means that the Primo inverter is suitable for installation under the Small-scale Renewable Energy Scheme (SRES)

Can you Retrofit a Battery to Fronius Primo Solar Inverter?

No, you cannot retrofit a battery to Fronius Primo solar inverter because it is not a battery inverter, and there are no battery chargers compatible with it.

However, Fronius has released a Gen24 Plus hybrid inverter available in a Primo single-phase variant. The Primo Gen24 Plus is the company’s first single-phase inverter, which can supply backup power when mains grid disruption occurs, even without a battery. 

There are also other Fronius inverters if you want a battery-ready inverter. You can choose Fronius hybrid inverters, such as Fronius Symo Gen24 Plus, Primo Gen24 Plus, and Fronius Symo Hybrid inverters.

Is the Fronius Primo a High-Quality and Valuable Inverter? Our Opinion

The Fronius Primo inverter is a tremendous inverter with multiple unique features that result in an outstanding performance. 

The Fronius brand is already well-established within the extensive solar sphere and produces highly reliable and quality solutions globally.

The solar inverter is still a great product, putting aside the disappointing warranty, high cost, and noise resulting from the cooling system. 

But if affordability is among your top priorities, then the Fronius Primo might not be your best choice. 

Due to the price tag, the warranty really should be more competitive. The positive side is that you can extend the Fronius warranty if necessary

In terms of fan noise, installing your solar inverter away from your bedroom or living space is advisable. 

Overall, the Fronius Primo inverter is a reliable purchase due to the company’s reputation. Its quality performance and unique system features make it an excellent investment.

Besides acquiring a suitable solar inverter, the most crucial aspect of investing in a solar system is ensuring the installation is accomplished correctly. That’s why you need a reputable company to install your solar panel

You should consider issues like safety for your family and house. We advise engaging qualified solar installers, such as Nectr, to address these concerns.

Nectr will guarantee you save on your electricity bill by installing a suitable solar inverter for you. We have developed an impressive installation track record for many Australian homeowners over the years.

Next Steps…

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