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For over 60 years the name Fronius has stood for intensive research and the constant search for new, innovative solutions. The perfect efficiency of every product has repeatedly been awarded both national and international prizes.

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Establishment of the Energy & Environment Division, with business units for photovoltaics and battery charging systems.


Launch of the "Sunrise" grid-connected solar inverter for generating electricity from solar energy and feeding it into the power grid.



Innovation Prize of the Province of Upper Austria for the "Sunrise" solar inverter.
solar inverter "Sunrise"


Launch of the "Solarix", a sine-wave solar inverter for stand-alone operation. The first such unit - anywhere - in which the inverter and charge controller really do work together smoothly.


Innovation Prize of the Province of Upper Austria for the sine-wave solar inverter "Solarix".


The "Fronius IG" grid-connected inverter is launched. With features such as data communication via plug-in cards, low weight and its compatibility with all common makes of photovoltaic module, the "Fronius IG" achieves the utmost in flexibility for the client.


Award of the Environment Prize of the Province of Upper Austria for the "Fronius IG" solar inverter.

Fronius IG


Start of the project „Fronius Energy Cell“. The vision: a photovoltaic system delivers the energy. The Fronius Energy Cell transforms the surplus power into hydrogen and stores it. If the pv-system produces insufficient power, the fuel cell transforms the hydrogen back to power.


Fronius Energy cell


Market launch of the Fronius IG 40 / 60 with MIX concept. The MIX concept achieves a marked increase in energy yield under part load and also enables more efficient utilisation of the inverter.  
Fronius IG 40 / 60


Fronius Solar Energy triples its production capacity from 70 MW to 200 MW! Additionally, inverters are UL certified for the USA, and the first sales partner for the Far East is won.
US-Inverter Fronius IG


Market launch of the first central inverter with Fronius MIX™ technology, the Fronius IG 500, in Europe and Korea. Multiple small power components in an inverter boost efficiency under partial load.
Fronius IG central inverter


Market launch of the new grid-connected PV-inverters "Fronius IG Plus": New power classes expand the proven Fronius IG series. These high-tech devices include many advantages and grant maximum earnings security – in any weather!
Fronius IG Plus


HyLOG presents a CO²-free internal logistics system in Sattledt with photovoltaic, electrolysis and hydrogen power. The project was honored by the Austrian Solar Award and the Energy Globe Award.
HyLOG: CO²-free internal logistics system


Start of the service subsidiary of the Solar Energy division in Verona, Italy


Fronius is honoured for the development of the inverter series Fronius IG Plus as well as for its outstanding service with the renowned „Frost & Sullivan Best Practices Award 2008“.
Frost&Sullivan Gala


Fronius and Frauscher present the worldwide first electric boat powered by hydrogen fuel cell.
Project boat


The Fronius Energy Cell is the world's first TÜV Süd certified hydrogen-powered fuel cell system that generates electricity without any emissions whatsoever.


TÜV-Süd signet


Premiere of the first transformerless PV inverter “Fronius IG TL” with standard system monitoring. It also has a unique feature in which a commercially-available USB stick can be used for easy system monitoring as well as simple inverter updating.
Fronius IG TL


The Solar Energy Division is present in the subsidiaries in France and Czech Republic and launches a new subsidiary in Spain.
Expansion of the previous support- and service branch in Italy to a sales subsidiary.
Fronius subsidiary Verona (IT)


The Fronius Energy Cell is now in the 2 kW and 4 kW power categories in full-scale production. The first stage involves the fuel cell.
Fronius Energy Cell


Launch of the new „Fronius CL“ central inverter series. These inverters provide maximum earnings along with the highest system stability due to the combination of high-yield power electronics with a unique modular system design using the Fronius MIX™ technology. The Fronius CL with power classes 36, 48 and 60 kW is perfectly suited for PV systems of up to several hundred kilowatts.
Fronius CL


Product placement of the Fronius Agilo. As the first central inverter in its performance class that can be completely installed and maintained by the installer, the Fronius Agilo sets new standards. With a maximum output power of 75 kVA and 100 kVA the Fronius Agilo is particularly suitable for industrial or commercial systems.
Fronius Agilo


With the Fronius Galvo, Fronius launches the first inverter with integrated data communication and WLAN in the world. The Fronius Galvo is the ideal inverter for small, private self-consumption systems. Numerous intelligent features make it one of the most future-proof devices in its power category. Thanks to the electrical isolation of the HF transformer, it is compatible with all module technologies and is particularly suitable for repowering small existing systems.
Fronius Galvo


Premiere of the Fronius SnapINverter generation with the launch of the Fronius Galvo.
The Fronius SnapINverters impress with their thoroughly intelligent design. This makes installation and commissioning, as well as operation and servicing, extremely efficient in terms of time and costs.
SnapINverters have an extensive energy-management, interface and communication package including WLAN, making them the most communicative series of inverters on the market.


Launch of the three-phase Fronius Symo from 3 to 20 kW and the single-phase Fronius Primo from 3 to 8.2 kW. In addition to the standard SnapINverter features, they also have a “SuperFlex Design”, which allows for overdimensioning of the kWp system output (up to 150% of the inverter rated power), full loading of the MPP tracker and any string distribution from symmetrical to extremely asymmetrical. Thanks to the SuperFlex Design, customers can now use one string inverter model for all possible planning scenarios.


Fronius International GmbH was crowned “Smart Grids Pioneer 2014” for its morePV2grid research project. The goal of the project was to strengthen the continuing development of electricity infrastructures and to promote links with international developments.


Launch of the Fronius Energy Package, consisting of the Fronius Symo Hybrid inverter, the Fronius Solar Battery and Fronius Smart Meter. The Multi Flow Technology of the Fronius Symo Hybrid can manage several DC and AC energy flows in parallel and simultaneously.


Premiere of the Fronius Eco project inverter in the 25 and 27 kW power categories. Thanks to its light weight and the SnapINverter mounting system, this transformerless device – with protection class IP66, integrated string fuse holders and optional overvoltage protection – can be installed quickly and easily either indoors or outdoors


The launch of the Fronius Eco completed the Fronius SnapINverter generation. The individual SnapINverter models cover the entire power range of 1.5 - 27 kW and their technical aspects are perfectly designed to meet the demands of the PV systems of today and tomorrow. This means Fronius SnapINverters can be used anywhere, from private homes to large-scale systems.


The Plus X Award for the Fronius Symo Hybrid. The Fronius Symo Hybrid was crowned the “Best product of the year 2015/2016” in the “Energy and lighting” category. Fronius founds a new subsidiary in Dubai: Fronius Middle East


The Solar Energy Division is represented by subsidiaries in India and Poland and opens a new subsidiary in Greece.


Fronius is celebrating 25 years of Solar Energy. As a solar pioneer, the family-lead company is looking back on a quarter of a century of experience in the development, production and support of solar electronics.


In its anniversary year, Fronius will pass the 10 Gigawatt mark for PV-inverter output produced since the Solar Energy Division was founded.
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