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Empirical model development and comparison with existing correlations


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  • Rehman, Shafiqur
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    This study utilized monthly mean daily values of global solar-radiation and sunshine duration at 41 locations in Saudi Arabia and developed an empirical correlation for the estimation of global solar radiation at locations where it is not measured. The paper also presents the comparison between the present correlation and other models developed under different geographical and varied meteorological conditions. The comparisons are made using standard statistical tests, namely mean bias error (MBE), root mean square error (RMSE), mean percentage error (MPE), and mean absolute bias error (MABE) tests. The errors are calculated using monthly mean daily measured and estimated values of global solar radiation at all 41 locations. The study found that the present correlation produced the best estimates of global solar radiation.

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    Article provided by Elsevier in its journal Applied Energy.

    Volume (Year): 64 (1999)
    Issue (Month): 1-4 (September)
    Pages: 369-378

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    Handle: RePEc:eee:appene:v:64:y:1999:i:1-4:p:369-378

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    Keywords: Empirical model Global solar radiation Mean bias error Mean absolute bias error Mean percentage error Root mean square error Sunshine duration Total solar radiation;


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    1. Srinivasan, R. & Bahel, V. & Bakhsh, H., 1987. "Comparison of models for estimating solar radiation in arid and semi-arid regions," Energy, Elsevier, vol. 12(2), pages 113-116.
    2. Bahel, V. & Srinivasan, R. & Bakhsh, H., 1986. "Solar radiation for Dhahran, Saudi Arabia," Energy, Elsevier, vol. 11(10), pages 985-989.
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    Cited by:
    1. Jebaraj, S. & Iniyan, S., 2006. "A review of energy models," Renewable and Sustainable Energy Reviews, Elsevier, vol. 10(4), pages 281-311, August.
    2. Hepbasli, Arif & Alsuhaibani, Zeyad, 2011. "A key review on present status and future directions of solar energy studies and applications in Saudi Arabia," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(9), pages 5021-5050.
    3. Rehman, Shafiqur & Bader, Maher A. & Al-Moallem, Said A., 2007. "Cost of solar energy generated using PV panels," Renewable and Sustainable Energy Reviews, Elsevier, vol. 11(8), pages 1843-1857, October.


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