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Energy-based Soiling Loss Monitoring Approach for Solar PV System
Journal
Conference Record of the IEEE Photovoltaic Specialists Conference
ISSN
01608371
Date Issued
2022-01-01
Author(s)
Fuke, Pavan
De, Shoubhik
Shiradkar, Narendra
Kottantharayil, Anil
Abstract
The energy loss caused by dust and other particles accumulating on photovoltaic (PV) modules has become one of the most important issues for PV system owners. A site-specific and dedicated soiling monitoring system may be necessary to improve yearly energy estimations and optimize cleaning schedules. Commercially available electrical soiling measurement kits compare the short circuit current (ISC) or maximum power (Pmax) of clean and naturally soiled PV modules for a specific time interval and irradiation level. In this paper, we present an energy based soiling loss monitoring approach. The ISC and Pmax based methods are benchmarked to the energy-based method for soiling data collected from a test station in Mumbai. It is found that the ISC and Pmax based methods underestimate the soiling losses by about 2.5-3%.
Volume
2022-June
Subjects