Review for Fronius USA
The company is the biggest subsidiary of Fronius International GmbH, headquartered in Austria. Fronius has three divisions: Perfect Welding, Solar Energy and Perfect Charging.
Through innovation and new technologies, Fronius has become a leading resource for high quality solutions in each industry they serve. Fronius' innovation is guided by a vision of 24 hours of sun, a future where 100% of energy needs are covered by renewable energy.
Fronius Primo Excellent Inverter Much Improved Over the IG serie
The Primo is a transformerless inverter and the snap inverter design makes it very easy to install. The connection unit bolts to a wall and the inverter hinges into the connection unit and is attached by two screws making the inverter very easy to remove and service. Fronius is the only inverter manufacturer that can replace boards if there is a problem, usually an hour job. It has two maximum power point trackers, so you can have strings facing different directions. It has very low warranty claim rate unlike the IG. The monitoring can be done via wifi or ethernet and is very simple to configure. On Fronius' solar website, you can look at AC volts and amps, DC volts and amps, mppt 1 power, mppt2 power, and total power. If you don't have any shading, definitely go with a string inverter and this is a good one. Less components to fail versus Enphase - inverter behind every panel in an extreme environment.