Welcome to Ennovus Solutions
Welcome to Ennovus Solutions
At the start of June 2025, Fronius invited the solar industry to their state-of-the-art facility in Milton Keynes to celebrate their 80th birthday at their Fronius 24/7 event. This also provided an opportunity to introduce new products to the market and deliver insights from industry experts.
This short blog explores our time at the Fronius UK HQ, as well as exploring a few key learnings.
It is no secret that Fronius have been involved in the solar industry for a long time. Their commitment to quality, and ethos of ’24-hours of sun’ has helped them to successfully navigate the ‘solar-coaster’, from their inception to the present day. Fronius’ first product release, all the way back in 1945, was a device which enabled car batteries to be recharged, before moving into welding equipment in 1950, and then releasing their first solar inverter, the Sunrise, in 1995.
A brilliant birthday cake to celebrate 80 years of Fronius
An engineer and an inverter that share a birth year
Fronius pride themselves on quality and long-service life, which is highlighted perfectly by their installation of 30 Sunrise inverters in 1999, in the town of Feldkirch, Vorarlberg in Austria. Since the original installation in 1999 only two inverters have have needed to be replaced. Solar is often talked about as a 25+ year asset, due to the module warranties; however, this example of inverter longevity showcases that it is very much a reality.
Fronius started in Austria in 1945, and since then they are proud to still be 100% European made, and predominantly Austrian made. Not only are the inverters manufactured in Europe but the data from the inverters is only stored on European servers. This is particularly important for any site that is conscious of data protection, with Fronius adhering to the highest information security standards (ISO27001).
The link between the welding and solar industry is one that is not commonly connected. However, the Fronius team made one very clear link between the two. By virtue of the welding process, Fronius understand arcing as well as anyone. In terms of risks within an operational PV system, the main risk is fire caused by arcing on the DC side of the system. Fronius includes in-built AFCI (arc fault circuit interrupter) within their inverters to mitigate this fire risk. Drawing on their decades of experience in the welding industry, Fronius have developed a leading arc fault protection system with advanced techniques for patten recognition. Not only does this mean that their AFCI will detect and supress an arc before it can lead to a fire but also means that there won’t be any nuisance tripping through false positives.
Fronius have a clear goal in their working of ’24 hours of sun’. This stems from a belief and commitment to an emission free future, using solar energy round the clock for ‘electricity, mobility, heating, and cooling’. Their product development of intelligent solutions feeds into this goal. Alongside leading PV inverters, Fronius have developed battery storage, backup functionality, EV chargepoints, smart meters, and heating controls for a truly integrated system design.
Embedded within the goal of ’24 hours of sun’, is a belief in sustainability. Their products are designed and produced via recycled materials and are built for repair rather than replacement. For example, a power or PC board replacement can be conducted on-site rather than replacing the whole inverter. This not only helps to minimise the operational cost and waste materials but also saves on time and travel. The idea of repair not replacement helps to further improve the lifecycle assessment of their inverters. Fronius have conducted a LCA from sourcing, to production, to use, and finally to end-of-life. For example, their commercial Tauro 100 inverter model has an energy payback period of 0.3 – 0.8 years and a carbon payback period of 0.4 – 2 years. This will become increasingly important as businesses delve into their scope 3 emissions.
Fronius have recently released two new commercial inverters onto the market, the Verto and Argeno. Both inverters have the core Fronius beliefs at their heart. They are 100% European made, with high performance and reliability, and compliance with strict European safety standards.
Verto
The Verto is best suited for small commercial premises, and is available in power categories 25, 27, 30, and 33.3 kW.
Argeno
The Argeno is a flexible and highly efficient inverter for large-scale commercial applications. The inverter is only available as a 125 kW model with 10 MPPTs, but can be oversized by 200%, making it well suited for sites with DNO limitations.
Reserva
Fronius have also recently announced their Reserva DC coupled battery, to be paired with their GEN24 hybrid inverter ranges. Whilst this is most suited to the domestic and small commercial market, there are rumours that a more commercially focused hybrid option will be available later this year.
New Fronius 125 kW large commercial inverter
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Ennovus are a leading Net Zero implementation Consultancy based in the UK. Part of Consultus Group, Ennovus Solutions are specialist engineers and experts in delivering Net Zero Solutions.
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