f491b208_SolarWorld___Solar_glossary__o_called_stand_alone_systems__
[O] W [Off-grid] Wafer
extremely thin discs made of solar-grade silicon used to make solar cells. They can be monocrystalline or multicrystalline.
SolarWorld : Solar glossary
solar power systems which are not connected to an electricity network. The electricity produced is consumed or stored directly on site (so-called stand-alone systems).