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Case study of PV output power degradation rates in Oman

Honnurvali, Mohamed Shaik; Gupta, Naren; Goh, Keng; Umar, Tariq; Kabbani, Adnan; Nazeema, Needa

Authors

Mohamed Shaik Honnurvali

Naren Gupta

Keng Goh

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Dr. Tariq Umar Tariq.Umar@uwe.ac.uk
Senior Lecturer in Construction Project Management

Adnan Kabbani

Needa Nazeema



Abstract

To meet the increase in peak electricity demand, reduce fossil fuel emissions in Oman, and as an initiative taken by the government, by 2030 15% (3000 MW) of the total energy mix (20,000 MW) should be generated from renewable energy resources. It is crucial for the stakeholders and photovoltaic (PV) enthusiast to predict the return on investments and its performance in the local climatic conditions. In this study, a case study has been presented where different factors under local climatic conditions are studied. The results showed that the output power degradation for all modules is around 1.96%/year, which is almost double compared with European countries. Electrical analysis of different PV technologies showed that multi-crystalline silicon technology installed in hot-and-dry climate is degrading (around 2.54%/year) faster, while thin-film technology (CdTe) has shown lowest degradation (average of 0.8%/year) compared with any other PV technology. Furthermore, infrared image analysis showed that the presence of hot cells in PV modules is also a significant contributing factor in PV degradation rates. Severity of interconnect breakage tests confirm the increase of the series resistance of PV modules, which further contributes to the reduction of short-circuit current and thus PV maximum output. power.

Citation

Honnurvali, M. S., Gupta, N., Goh, K., Umar, T., Kabbani, A., & Nazeema, N. (2019). Case study of PV output power degradation rates in Oman. IET Renewable Power Generation, 13(2), 352-360. https://doi.org/10.1049/iet-rpg.2018.5457

Journal Article Type Article
Acceptance Date Oct 8, 2018
Online Publication Date Nov 6, 2018
Publication Date 2019-02
Deposit Date Feb 16, 2022
Journal IET Renewable Power Generation
Electronic ISSN 1752-1424
Publisher Institution of Engineering and Technology (IET)
Peer Reviewed Peer Reviewed
Volume 13
Issue 2
Pages 352-360
DOI https://doi.org/10.1049/iet-rpg.2018.5457
Keywords cadmium compounds; maximum power point trackers; investment; short-circuit currents; infrared imaging; elemental semiconductors; power generation economics; power system interconnection; cost-benefit analysis; solar cells; photovoltaic power systems; sili
Public URL https://uwe-repository.worktribe.com/output/8661849
Publisher URL https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2018.5457