Erratum to 'Measurement and comparison of diffuse solar irradiance models on inclined surfaces in Valladolid (Spain)' [Energy Conversion and Management 46 (2005) 2075–2092]

In our published paper, Gueymard’s model showed a performance that was significantly worse than the results obtained by other authors like Utrillas et al. [3] or Kambezidis et al. [4]. As a consequence, Dr. Gueymard has called our attention to the existence of an erratum [2] to his original paper [1], where the correct values of some of his model coefficients are given. Unfortunately, we had not taken into account these correct coefficient values in our publication. Therefore, the comments it contains about the results of Gueymard’s model are obviously not valid. As a consequence, we have repeated the performance evaluation of Gueymard’s model using the correct coefficients. The new results effectively show noticeable differences, as described further below.