Outdoor PV Module Degradation of Current-Voltage Parameters: Preprint

Photovoltaic (PV) module degradation rate analysis quantifies the loss of PV power output over time and is useful for estimating the impact of degradation on the cost of energy. An understanding of the degradation of all current-voltage (I-V) parameters helps to determine the cause of the degradation and also gives useful information for the design of the system. This study reports on data collected from 12 distinct mono- and poly-crystalline modules deployed at the National Renewable Energy Laboratory (NREL) in Golden, Colorado. Most modules investigated showed < 0.5%/year decrease in maximum power due to short-circuit current decline.

[1]  Dirk C. Jordan,et al.  Photovoltaic Degradation Rates—an Analytical Review , 2012 .

[2]  D. L. King,et al.  Commonly observed degradation in field-aged photovoltaic modules , 2002, Conference Record of the Twenty-Ninth IEEE Photovoltaic Specialists Conference, 2002..

[3]  M. Quintana,et al.  Long-term performance and reliability assessment of 8 PV arrays at Sandia National Laboratories , 2009, 2009 34th IEEE Photovoltaic Specialists Conference (PVSC).

[4]  B. Marion,et al.  Current–voltage curve translation by bilinear interpolation , 2004 .

[5]  Carl R. Osterwald,et al.  PV performance measurement algorithms procedures and equipment , 1990, IEEE Conference on Photovoltaic Specialists.

[6]  S. Sakamoto,et al.  Field test results on the stability of crystalline silicon photovoltaic modules manufactured in the 1990s , 2003, 3rd World Conference onPhotovoltaic Energy Conversion, 2003. Proceedings of.

[7]  A. Reis,et al.  Comparison of PV module performance before and after 11-years of field exposure , 2002, Conference Record of the Twenty-Ninth IEEE Photovoltaic Specialists Conference, 2002..

[8]  A. Reis,et al.  Comparison of PV module performance before and after 11 and 20 years of field exposure , 2002, 2011 37th IEEE Photovoltaic Specialists Conference.

[9]  E. Dunlop,et al.  The results of performance measurements of field‐aged crystalline silicon photovoltaic modules , 2009 .

[10]  J. A. del Cueto,et al.  Review of the field performance of one cadmium telluride module , 1998 .

[11]  P. Sánchez‐Friera,et al.  Analysis of degradation mechanisms of crystalline silicon PV modules after 12 years of operation in Southern Europe , 2011 .