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A STUDY ON PREVALENT FACTORS BEHIND EFFICIENCY DETERIORATION OF A TYPICAL LOW POWER SOLAR PANEL
Keywords: Efficiency, Solar, photovoltaics
Efficiencies for a number of different low power (10W MAX) consumer grade PV solar panels were studied in this research. Outdoor behavior was contrasted with lab environment simulations. The author focused on four parameters: extreme temperatures of operation, duration of operation per “on” cycle, number of “on – off” cycles and overall period of “on” operation for a 365 days interval. Standard environmental operating conditions were taken into account for the lab environment, where constant solar noon was simulated for 70% of the equivalent daylight exposure time. No CPV or lenses were used. Additionally, a comparison surrounding the estimated life expectancy and efficiency decrease pattern of the panels was targeted and presented in this study.
Virgil C. Ganescu, PhD,
Education Affiliates
Baltimore, MD
USA


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