Fronius IG. The reliable series of PV inverters. Maximum flexibility with Fronius IG. The PV inverter family works exceptionally with all solar panels available on the market. The ingenious processor control - the Fronius IG Module-Manager™ software - and a large number of other enhancements makes them very versatile. They work reliably and efficiently in every class thanks to Fronius' remarkable experience and decades of research and development.