Global solar radiation over Turkey: comparison of predicted and measured data

Inci Türk Toğrul and Hasan Toğrul

Renewable Energy, 2002, vol. 25, issue 1, 55-67

Abstract: In this study, various regression analyses were applied to estimate monthly mean solar radiation in Turkey, by using n̄/N̄ and n̄/N̄nh parameters. Also, equations which represent two periods of the year, winter and summer, were developed by using these parameters. The equations developed by using n̄/N̄nh ratio showed good results for the whole country, but, those which included n̄/N̄ ratio at different cities showed better results. Even better results were obtained when the equations were applied to the summer and winter. In addition to RMSE and MBE statistics, the t-test method and the harmonic analysis were employed to prove that the results are reliable.

Keywords: Estimation of solar radiation; t-statistic (search for similar items in EconPapers)
Date: 2002
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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:25:y:2002:i:1:p:55-67

DOI: 10.1016/S0960-1481(00)00197-X

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