Insights on the Degradation and Performance of 3000 Photovoltaic Installations of Various Technologies across the United Kingdom

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Abstract

This article presents the degradation rates over 8 years for 3000 photovoltaic (PV) installations distributed across the U.K. The article considers three PV cell technologies, namely, monocrystalline silicon (Mono-Si), polycrystalline silicon (Poly-Si), and thin-film cadmium telluride (CdTe). The available raw data undergoes three key stages: normalization, filtering, and aggregation, before the degradation analysis of the considered installations. This algorithm can be considered as one of the article contributions. Results show that a maximum degradation rate of -1.43%/year is observed for the CdTe type, whereas Poly-Si and Mono-Si PVs have annual degradation rates of -0.94% and -0.81%, respectively. Moreover, this article exploits the monthly mean performance ratio (PR) for all the examined PV sites. The highest PR value of 87.97% is calculated for the Mono-Si PV installations, while 85.08% and 83.55% are calculated for Poly-Si and CdTe installations, respectively.

Original languageEnglish
Article number9187815
Pages (from-to)5919-5926
Number of pages8
JournalIEEE Transactions on Industrial Informatics
Volume17
Issue number9
Early online date8 Sep 2020
DOIs
Publication statusPublished - 1 Sep 2021

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