About Fronius

The Fronius story begins all the way back in the 1940s. At that time Günter Fronius founded a simple one-man business in Pettenbach.

The founding of Fronius’ youngest business unit, Fronius Solar Energy by second generation owners, Brigitte Strauß and Klaus Fronius dates back to 1992 with a focus of “technology of the future”.

Fronius Product Showcase


We want to power your home by solar energy all the time. Serviceability is hugely important to save time and create more up-time for your customers.


Sustainability is at the heart of everything Fronius does. Fronius products are carefully engineered to ensure that their environmental benefits outweighs their impact.


With the free Fronius Solar.web online tool, you can keep an eye on your energy yield and consumption at all times and get the most out of your photovoltaic system.