Accelerated Outdoor PID Testing of CIGS Modules and Comparison with Indoor PID Tests

In order to accelerate the PID tests of commercial CIGS modules outdoors, water was regularly sprayed on modules during the PID test. We could increase the leakage current more than 10 times by water spraying. Comparison of leakage current suggests that 96 hours of indoor PID tests may be equivalent to around 4 years of outdoor PID testing. This work is intended to provide supportive information for related IEC standards currently under development.