Fronius IG Central Inverters
The own solar powerstation.
The Fronius IG central inverters are suitable for pv systems starting with an AC output power of 24 kW and work with a completely new system configuration. There is not only one power stack converting the electricity but also 9, 12 to 15 printed circuit boards that share the work, depending on the output class.
The reason for this is that it is well-known that the energy yield increases in part-load areas if smaller power stacks are operated at higher capacity. Therefore, every Fronius IG central inverter works with several smaller power stacks that switch on or off completely automatically depending on irradiance so that they can always deliver maximum power.