Fronius International was founded by Gunter Fronius in Pettenbach, Austria back in 1945. Fronius got its start by producing and selling battery chargers and welding equipment. For years it focused on the welding market, but in 1995 Fronius entered the solar PV market with its first grid-tied inverter. A sine-wave inverter followed in 1998, and then in 2002 with the Fronius IG series. Today, Fronius continues its reputation as a pioneer and leader in the PV inverter market with the Galvo and Primo lines (shown below).
The Fronius Primo and Galvo series of grid-tied solar PV inverters are built to provide high performance, ease of installation, and convenient operation. Both lines incorporate Fronius's SnapINverer hinge mounting system, making single-person installation efficient. Their wide voltage windows facilitate flexible system design and with built-in WIFI and free lifetime monitoring via the Fronius Solar.web, homeowners can monitor daily production with ease.
FRONIUS UPDATE 01/25/2023 - AT THIS TIME, WE CURRENTLY HAVE NO AVAILABILITY FOR FRONIUS PRIMO INVERTERS, AND WE CAN NOT TAKE BACK ORDERS. WE ARE UNSURE AT THIS POINT AS TO WHEN THEY MAY BE AVAILABLE AGAIN.