Operation and Performance Assessment of Grid-Connected PV Systems in Operation in Maui, Hawaii

Busquet, Séverine; Kobayashi, Jonathan; Rocheleau, Richard

doi:10.1109/pvsc.2017.8521515

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…Considering the bright future and huge investments made in photovoltaics, it is vital to understand the performance of the photovoltaic systems over a period of time. Earlier research studies conducted in the different parts of the globe [10], [11], [12] have witnessed photovoltaic degradation due to the influence of various factors such as local environment conditions and other socio-economic factors. A recent research study by Mohamed shaik et.al [13], [14] conducted a survey of around 130 PV modules to estimate the degradation rates in Oman.…”

Section: Introductionmentioning

confidence: 99%

Measurement, Modeling and Simulation of Photovoltaic Degradation Rates

Honnurvali

Gupta

Goh

et al. 2020

Lecture Notes in Electrical Engineering

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Photovoltaic degradation rates play a vital role in visualizing and analyzing the performance of the PV modules over the long run. These degradation rates provide critical information for the stakeholders and researchers to make sensible decisions in deploying the best photovoltaics suitable in those concerned geographical regions of the globe. A site survey is conducted to calculate PV degradation rates. The results have shown that for the first three years since the initial installation, the degradation rates have remained in line with the manufacturer values (i.e. less than 0.6%) while the next two years the degradation rates have almost increased by 40%. This is due to discoloration of the encapsulant causing the reduction of the short circuit current (Isc). Mathematically modeling such visual loss factors have not considered so far. The visual loss factor equation is developed and incorporated in the output current equation of the PV module. Further, the I-V and P-V curves are simulated and compared with the measured I-V curves. The results have shown an acceptable error percentage of around 0.3%.

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