Presentation Details

SPLTRAK Abstract Submission
IEC 61215 Qualification Tests vs Outdoor Performance using Module Level In Situ I-V Curve Tracing Devices 
C Birk Jones1, Babak Hamzavy2, William B. Hobbs3, Cara Libby4, Olga Lavrova1
1Sandia National Lab, Albuquerque, NM, United States
/2Southeastern Solar Research Center, Birmingham, AL, United States
/3Southern Company Service, Inc., Birmingham, AL, United States
/4Electric Power Research Institute, Palo Alto, CA, United States

Accelerated testing has been recognized as a valu- able tool for identifying modules that are prone to early-life failures or excessive degradation. Yet, it is unclear how many of the tests, including IEC 61215, match with reality. The present work performed indoor aging tests based on the IEC standard and compared with current and voltage (I-V) curve results with fielded modules. The IEC test results did not show significant losses in power and open circuit voltage. There was a noticeable drop in short circuit current. The results showed some similarities and the outdoor exposed modules tended to have experienced slightly more degradation over a five year period. 

Area: Sub-Area 9.2: Accelerated Testing and Quality Control for Consistently Reliable and Durable PV