STATIC EVALUATION OF THE GLOBAL SOLAR POTENTIAL IN THE REGION OF KARA (TOGO) BY EMPIRICAL MODELS

In this work, we propose different empirical models for the estimation of daily global solar radiation on a horizontal plane in the region of Kara in Togo. The performance of the models is evaluated on the basis of statistical indicators such as: the correlation coefficient (R) and the Root Mean Square Error (RMSE). It appears that the Angstrom-Prescott linear model is the most efficient for the site. For this model, the values of R and RMSE are 0.9256 and 0.046, respectively. It can therefore be used to estimate the solar potential of the region of Kara.