Recommendations on the Selection of Sunny Island / Multicluster-Box
The following information is necessary in order to determine the number of Sunny Island devices necessary in single-phase systems:
Maximum power drawn by the loads per day (Pmax)
Power of the Sunny Island inverter for 30 minutes at 25°C (P 30 min)
Calculation:
Information on three-phase systems
The number of devices necessary in three-phase systems can be determined using the same method as that specified for single-phase systems. The result must, however, be rounded up to the next highest number that is divisible by three. This ensures that the inverters can be distributed symmetrically across the line conductors ( > Sunny Island Inverter Selection). Loads and generators must be distributed evenly over the 3 line conductors.