Fronius has been engaged in the field of renewable energy, and in particular solar energy, since 1992. The first Fronius inverter, the “Sunrise”, was developed in 1995, marking the birth of Fronius Solar Energy. The third and youngest of the three Fronius Business Units was responsible for a revolution in 2001, when on the roof of the former production site in Pettenbach, the Fronius IG came into being. This was an immense, innovative leap forward in the field of inverters. For the first time plug-in cards were used to upgrade the device, for example with a WLAN module, giving it a future-proof feature that had never before been deemed possible. The product lifetime of the inverter clearly demonstrates its exceptional quality; it was not until the end of 2015 that the Fronius IG was discontinued.
As well as manufacturing inverters, Fronius has also been consistently working on different research projects right from the start, always with the aim of making renewable energy future-proof. The Fronius Energycell, which first went into development as early as 2002, is one of these projects. This system has been designed to convert solar energy into hydrogen and then store it. In 2009 it was certified as the worlds first system of its kind anywhere in the world by TÜV Süd.