Author(s)

Marcel Hamda Soulouknga¹, Abraham Dandoussou², Noel Djongyang³

¹Higher Normal School of Technical Education of Sarh, University of Sarh, Sarh, Chad.
²Department of Electrical and Power Engineering, Higher Technical Teachers’ Training School, University of Buea, Kumba, Cameroon.
³Department of Renewable Energy, National Advanced Polytechnic School, University of Maroua, Maroua, Cameroon.

The global sustainability plan for future development relies on solar radiation which is the main source of renewable energy. Thus, this work studies the performance of six models to estimate global solar radiation on a horizontal surface for the Abeche site in Chad. The data used in this work were collected at the General Directorate of National Meteorology of Chad. The reliability and accuracy of different models for estimating global solar radiation were validated by statistical indicators to identify the most accurate model. The results show that among all the models, the Sabbagh model has the best performance in estimating the global solar radiation. The average is 6.354 kWh/m² with an average of -3.704%. This model is validated against NASA data which is widely used.

Empirical Models, Statistical Indicators, Solar Radiation, Abeche

Soulouknga, M. , Dandoussou, A. and Djongyang, N. (2022) Empirical Models for the Evaluation of Global Solar Radiation for the Site of Abeche in the Province of Ouaddaï, in Chad. Smart Grid and Renewable Energy, 13, 223-234. doi: 10.4236/sgre.2022.1310014.