Comparison of Different Models to Estimate Global Solar Irradiation in the Sudanese Zone of Chad

  Marcel Hamda Soulouknga (1), Hasan Huseyin Coban (2*), Ruben Zieba Falama (3), Fabrice Kwefeu Mbakop (4), Noel Djongyang (5)

(1) Higher Normal School of Technical Education of Sarh, University of Sarh - Chad orcid
(2) Department of Electrical Engineering, Ardahan University - Turkey orcid
(3) Higher National School of Mines and Petroleum Industries, University of Maroua - Cameroon orcid
(4) Department of Renewable Energy, National Advanced Polytechnic School, University of Maroua - Cameroon orcid
(5) Department of Renewable Energy, National Advanced Polytechnic School, University of Maroua - Cameroon orcid
(*) Corresponding Author

Received: October 16, 2022; Revised: November 06, 2022
Accepted: November 10, 2022; Published: December 31, 2022

How to cite (IEEE): M. Soulouknga, H. H. Coban, R. Falama, F. Mbakop,  and N. Djongyang, "Comparison of Different Models to Estimate Global Solar Irradiation in the Sudanese Zone of Chad," Jurnal Elektronika dan Telekomunikasi, vol. 22, no. 2, pp. 63-71, Dec. 2022. doi: 10.55981/jet.508


Sustainable future development relies on solar radiation, which is the main source of renewable energy. Thus, in this article, the monthly average global solar irradiation of four sites in the Sudanian zone region of Chad is estimated using different empirical models. The data used in this study were collected at the General Directorate of Meteorology of Chad. The reliability and accuracy of six models estimating global solar radiation were validated and compared by statistical indicators identifying the most accurate model. The results obtained show that the Allen model has the best performance for the Moundou site (5.760 kWh/m²/d, R2=0.843), the Angstrom Prescott model for the Sarh sites (5.658 kWh/m²/d, R2=0.805) and Pala (5.793 kWh/m²/d, R²=0.889), the Sabbagh model for the Bongor site (5.657 kWh/m²/d, R²=0.888). These models are validated against NASA data. The results show that the Sudanian zone of Chad has good solar potential and is therefore suitable for possible exploitation.



renewable energy; empirical models; statistical indicators; solar radiation; Sudanese zone.

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