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Performance degradation in field-aged crystalline silicon PV modules in different indian climatic conditions

2014; Linguagem: Inglês

10.1109/pvsc.2014.6925612

Rajiv Dubey, Shashwata Chattopadhyay, Vivek Kuthanazhi, Jim Joseph John, J. Vasi, Anil Kottantharayil, Brij M. Arora, K. L. Narsimhan, Vaman Kuber, Chetan Singh Solanki, Arun Kumar, O.S. Sastry,

Solar Thermal and Photovoltaic Systems

A survey of field-aged crystalline silicon modules in various climatic conditions in India was carried out, focusing on modules, which show visible signs of degradation. Analysis of the survey data indicates that the power degradation rate is highest in the Hot & Dry climatic zone, followed by the Hot & Humid zone, while it is least in the Cold zone. The degradation in power output of crystalline silicon modules is primarily due to reduction in the short-circuit current, followed by decrease in fill factor while the decrease in open-circuit voltage is very small. Analysis of the survey data also indicates that degradation rate of multi-crystalline silicon is slightly higher than that of mono crystalline silicon.