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At a glance – Fronius

Solar energy is the future of power generation. As a pioneer in this field, Fronius stands for consistency, reliability, and a long-term vision. For 80 years, the Austrian family-owned company has been setting standards in power electronics: from battery charging systems and innovative welding solutions to solar energy. With more than 7,000 employees worldwide, 1,604 active patents, and 38 international subsidiaries, Fronius has grown into a global technology company. Fronius develops products and solutions for a sustainable future, including planning and consulting, continuous monitoring, and needs-based repair services.

Projects with Fronius

News

Fronius Reserva Pro: Efficient, modular energy storage “Made in Europe”

With the new Reserva Pro, our partner Fronius expands its storage portfolio with a powerful, modular solution for commercial applications. As a “Made in Europe” battery, the Reserva Pro is particularly suitable for commercial businesses, agricultural applications and larger residential buildings with increased energy demand.

Wallbox Inspection: Acclaim for the Fronius Wattpilot Flex Home

At the end of 2025, the Fronius Wattpilot Flex Home was awarded second place in the “Wallbox Inspection” evaluation project carried out by the Fraunhofer Institute for Solar Energy Systems (ISE). Among five tested charging solutions from leading manufacturers, the Wattpilot shined through with its “Made in Austria” quality.

Why Fronius?

Smart technology

Active inverter cooling of the power electronics for extended service life and higher PV yields
High flexibility in string design and configuration options with any PV module technology
Integrated shade management with a central optimizer function to minimize energy losses
Clear monitoring of all energy flows with intelligent energy management

European value creation

Production and development have always been rooted in Europe
Sustainable manufacturing with 100 % renewable energy at all Austrian locations
Supporting regional economic value creation

Guaranteed quality

Products designed for long service life and designed for long service life and demanding operating conditions
Manufactured to the strictest quality standards, thoroughly tested
Up to 10 years warranty on inverters, backed by a European warranty provider

European data security

75 % of all solutions are developed and operated in Europe
User and system data is stored exclusively on European servers
Separate storage of customer and system data for enhanced data security
ISO/IEC 27001-certified information security

Latest products

Fronius Reserva – the next step towards energy self-sufficiency

The Fronius Reserva is an efficient DC-coupled high-voltage battery for solar energy storage with minimal losses. European data security and fast service ensure maximum reliability.

Thanks to the expandability of the Fronius Reserva, up to 4 batteries can be operated in parallel on a Fronius GEN24 Plus or Fronius Verto Plus inverter – from 6.3 to 15.8 kWh per tower, with a total storage capacity of up to 63 kWh.

Link: Product website
Link: Product datasheet

Fronius Verto Plus – efficient energy conversion on a new level

The Fronius Verto Plus is a powerful hybrid inverter (15 to 33.3 kW) that impresses with its flexible application options and maximum efficiency.

Thanks to state-of-the-art power electronics, it provides a reliable backup power supply and optimized energy yield, making it the best choice for complex PV systems and various module types.
Link: Product datasheet

Fronius Wattpilot Flex – intelligent electromobility at home

With the Wattpilot Flex (11/22 kW charging capacity), Fronius is setting new standards in e-mobility. The charging station enables flexible, cost-efficient, and PV-optimized charging. Users benefit from intelligent functions that optimize the charging process and maximize the self-consumption of solar power.

Link: Product website
Link: Product datasheet

Fronius Symo GEN24 Plus SC – High-Performance Hybrid Inverter for Modern PV Systems

The three-phase Fronius Symo GEN24 Plus SC hybrid inverter combines flexible system design with battery storage integration and intelligent energy management. Featuring two MPP trackers and SC technology for higher PV input currents, it is designed for modern high-power PV modules. Depending on the system configuration, backup power functions are also available. This makes the series particularly suitable for residential and small commercial PV systems that require a flexible, future-ready system solution.
Link: Product datasheet