Results of five years of module qualification testing to CEC Specification 503 [solar cell arrays]

Solar cell module failures observed during qualification testing to CEC Specification 503 on 96 crystalline silicon solar cell module types are described. Of these 96 types, 22 exhibited major defects and 9 failed to meet qualification requirements. The effects of the environmental tests are presented, and used to propose test sequences for extending certification following module design changes.