Fronius
Fronius is a third-generation family-run business. It develops and manufactures its inverters, storage systems and energy management systems in Europe and offers installation companies a perfectly coordinated range of systems. At Krannich Solar, you can find a comprehensive range of Fronius products for residential and commercial properties – including new products such as the Fronius Reserva high-voltage battery and the new Verto Plus hybrid inverter.
Key information about Fronius inverters
Fronius inverters are among the most efficient on the market and impress with their versatility and future-proof design. Of particular note is the Multi Flow Technology, which enables simultaneous charging of a compatible storage system and power supply to loads – even in emergency power mode.
- Fronius GEN24 Plus: Single-phase and three-phase hybrid inverters with an emergency power function, high system efficiency and multiple awards (e.g. at the HTW Storage Inspection 2024 and 2025, in combination with the BYD Battery-Box HVS).
- Fronius Verto Plus: Compact hybrid inverter for small businesses, agriculture and multi-family homes (15.0 to 33.3 kW). 100% made in Austria, designed for plug-and-play integration with the Fronius Reserva battery.
Battery storage: Fronius Reserva
With the launch of the Fronius Reserva in 2025, Fronius is offering its own storage solution with seamless system integration for the first time. The high-voltage battery with DC coupling has been specially developed for use with GEN24 Plus and Verto Plus. Key technical specifications:
- Modular design: 2–5 modules per tower (6.3–15.8 kWh)
- Expandable to up to 4 towers, i.e. a maximum of 63 kWh
- Capable of providing emergency power and black start
- Operating temperature: -20 to +55 °C / IP65
- Designed for confined spaces (slim, stackable, plug-in)
- 10-year warranty on 80% residual capacity
Intelligent control of energy flows
With Solar.web, smart meters and compatible energy management systems, Fronius offers a comprehensive ecosystem for controlling, optimising and visualising energy flows:
- PV yield, consumption, grid draw and storage status in real time
- Integration of immersion heaters, wallboxes, heat pumps and more
- Emergency power options configurable to suit individual needs
- Data protection: servers located in Europe, regular security audits
About Fronius
Fronius was founded in Austria in 1945 and is now a family-owned, global technology group with over 8,000 employees, more than 1,000 of whom work in the solar division. Its products are manufactured almost entirely in Europe and are characterised by their durability, ease of maintenance and efficiency. The company is headquartered in Wels, and its corporate values are strongly focused on sustainability (e.g. the Fronius Earth Mission).
