Analysis of the Field Performances of South-facing Vertical Solar Module in Nis, Serbia

This paper presents an analysis of the field performances of south-facing vertical solar module in Nis, Serbia is presented. Electrical parameters, backside temperature and weather parameters were continuously measured and 12 sunny days, predominantly occurring in the middle of each month throughout the year, were selected. The daily change of the solar radiation intensity, maximum power, module temperature and electrical efficiency were analyzed, to assess the feasibility of using vertical PV modules in Niš. Based on the results, it can be concluded that, south-facing solar module generates most of electrical energy in March and September, as well as one month before and after each. From November until the end of February, local weather conditions have negative impact on electricity production. The electrical efficiency of the module exhibits an opposite trend of daily change in summer and winter months, with the maximum value in summer months and the minimum in winter corresponding to solar noon. Vertical modules are ideal for urban environments for which space-efficient solutions are required, as they contribute to sustainable electricity generation.