Installation and operating manual
Page 14 of 95
(PVI-3.8/4.6-I-OUTD Rev.: 1.5)
2.1
Fundamental elements of a photovoltaic system: “STRINGS” and
“ARRAYS”
In order to significantly reduce the costs of installing the photovoltaic system, costs
linked especially to the wiring problem of the inverter DC side, and to the subsequent
distribution on the AC side, the STRING technology was developed.
A photovoltaic panel is composed of many photovoltaic cells which are fixed onto the
same supporting base. A STRING is composed of a certain number of panels,
connected in series. An ARRAY is composed of one or more strings connected in
parallel.
Photovoltaic systems of a certain size can be composed of more than one array,
connected to one or more AURORA inverters.
By maximizing the number of panels inserted into each string, it is possible to reduce
the cost and complexity of the plant connection system.
Fig. 2 - Array Composition
Fig. 2 Array composition
PV Panel
PV String
PV Array
PV Cell
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