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Sunny Island
13.3 Single-Phase PV Island Grid with Generator and Utility
In case the power supply from the public utility is insufficient due to frequent long
shutdown or seasonal variations the Sunny Island can provide a more independent
power supply. This requires that the public utility is integrated into the island grid. An
example is given in chapter 16.
PV Modules
Sunny Boy
Sunny Island
Batteries
U
60 V
nom
Fig. 13.2: Sunny Island with PV, generator and public utility (single-phase)
This type of plant configuration requires a very sophisticated plan-
ning and commissioning in order to prevent any kind of accident
with live wires that are assumed to be safe to touch. All local regula-
tions and laws must be kept to and the approval of the public utility
company is mandatory!
To monitor the battery temperature a Pt100 temperature sensor has to
be connected to the Sunny Island!
BWRI33-12:EE
Installation & Operating Instructions
Generator
G
230 V 50 Hz/60 Hz
3.3 kW
- 126 -
Grid
Consumers
SMA Regelsysteme GmbH
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