SMA SB 4200TL Multi-String - Manual (Page 59)

SMA Technologie AG Glossary
Operating Instructions SB4200-12:FE4804 Page 59
String
A group of solar modules switched in series. Usually a PV plant consists of several
strings. Thus it is possible to avoid too high yield losses if the modules are shadowed
to a different extent.
String inverter
Inverter concept avoiding the disadvantages of a concept with one central inverter.
The PV generator is divided into individual strings which are each connected to the
external grid with their own string inverter. This considerably simplifies installation
and reduces yield losses due to variations in manufacture or a different degree of
shading of solar modules.