International Journal of Photoenergy / 2014 / Article / Fig 6

Research Article

Improved Synthesis of Global Irradiance with One-Minute Resolution for PV System Simulations

Figure 6

Frequency of gradients of the global irradiance in Lindenberg, Germany (2005). The model quality in lower gradient ranges of up to 10 W/m² is similar in all models. In the range of 10 to 100 W/m², significant deviations can be detected for the models of Aguiar and Skartveit (grey), whereas the new method (blue) shows good congruence. For gradient values of more than 100 W/m², the model of Aguiar underestimates the frequency significantly, while the new method and the method of Skartveit feature similar frequency values compared to the measurement data (black).

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.