Research Article

Conditioning Of Photovoltaic Power Losses Through Deviation And Residual Analysis

Number: Advanced Online Publication Early Pub Date: July 24, 2026
EN TR

Conditioning Of Photovoltaic Power Losses Through Deviation And Residual Analysis

Abstract

The performance evaluation of the photovoltaic system is conducted by combining a theoretical power-estimation approach with environmental observations. The dataset includes irradiance, temperature, air density, and cloud cover, enabling examination of the system's operating conditions in relation to atmospheric variability. A reference power signal is obtained from a formulation dependent on temperature and irradiance intensity, and this signal is used as a reference for comparison with the measured output. From this reference point, residuals describing instantaneous deviations from expected behavior can be derived. These residuals are generally concentrated around zero. However, they are interrupted by distinct power drops at more infrequent intervals. These intervals are not randomly distributed over time. They coincide during periods when intense solar radiation coincides with high temperatures. This indicates that thermal effects and short-term radiation fluctuations jointly shape the observed response. To examine these effects, loss maps were created for light intensity-temperature and cloud cover-light intensity pairs. Ultimately, the most significant losses occurred when module temperatures increased alongside high radiation and under partially cloudy conditions. The study combined theoretical comparison, residue-based evaluation, and loss mapping. As a result, a new framework was presented to interpret PV performance deviations and understand how atmospheric variability leads to reductions in energy efficiency. The results indicate a cumulative loss of 54,663 Wh, corresponding to 26.62% of the total theoretical energy production. Residual magnitudes increased significantly under high irradiance conditions, often exceeding 200 W, highlighting the dominant role of combined thermal and atmospheric effects in shaping performance deviations.

Keywords

Supporting Institution

No specific funding or institutional support was received for this study.

Ethical Statement

This study does not involve human participants or animal subjects. The data used in this research were obtained from publicly available or operational system records and were analysed in accordance with relevant ethical standards. No ethical approval was required for this study.

References

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Details

Primary Language

English

Subjects

Electrical Energy Generation (Incl. Renewables, Excl. Photovoltaics), Renewable Energy Resources

Journal Section

Research Article

Early Pub Date

July 24, 2026

Publication Date

-

Submission Date

December 17, 2025

Acceptance Date

May 12, 2026

Published in Issue

Year 2026 Number: Advanced Online Publication

APA
Yüksek, G. (2026). Conditioning Of Photovoltaic Power Losses Through Deviation And Residual Analysis. Gazi University Journal of Science, Advanced Online Publication. https://doi.org/10.35378/gujs.1844176
AMA
1.Yüksek G. Conditioning Of Photovoltaic Power Losses Through Deviation And Residual Analysis. Gazi University Journal of Science. 2026;(Advanced Online Publication). doi:10.35378/gujs.1844176
Chicago
Yüksek, Gökhan. 2026. “Conditioning Of Photovoltaic Power Losses Through Deviation And Residual Analysis”. Gazi University Journal of Science, no. Advanced Online Publication. https://doi.org/10.35378/gujs.1844176.
EndNote
Yüksek G (July 1, 2026) Conditioning Of Photovoltaic Power Losses Through Deviation And Residual Analysis. Gazi University Journal of Science Advanced Online Publication
IEEE
[1]G. Yüksek, “Conditioning Of Photovoltaic Power Losses Through Deviation And Residual Analysis”, Gazi University Journal of Science, no. Advanced Online Publication, July 2026, doi: 10.35378/gujs.1844176.
ISNAD
Yüksek, Gökhan. “Conditioning Of Photovoltaic Power Losses Through Deviation And Residual Analysis”. Gazi University Journal of Science. Advanced Online Publication (July 1, 2026). https://doi.org/10.35378/gujs.1844176.
JAMA
1.Yüksek G. Conditioning Of Photovoltaic Power Losses Through Deviation And Residual Analysis. Gazi University Journal of Science. 2026. doi:10.35378/gujs.1844176.
MLA
Yüksek, Gökhan. “Conditioning Of Photovoltaic Power Losses Through Deviation And Residual Analysis”. Gazi University Journal of Science, no. Advanced Online Publication, July 2026, doi:10.35378/gujs.1844176.
Vancouver
1.Gökhan Yüksek. Conditioning Of Photovoltaic Power Losses Through Deviation And Residual Analysis. Gazi University Journal of Science. 2026 Jul. 1;(Advanced Online Publication). doi:10.35378/gujs.1844176