By Sreenivasa Murty Dasari, Chandra Mauli Kumar, Amresh Mahajan & Nagesh C, Tata Power Solar, Bengaluru, India
Higher power generation yield is the prime objective of any solar power plant developer. The quality and reliability of the modules used are therefore a key aspect, with customers placing stringent criteria on cell and
module manufacturers with regard to product quality. Electroluminescence (EL) image monitoring, which gives a clear picture of defect distribution across a module, is an increasingly popular quality criterion.