Abstract
Solar tracking is used on photovoltaic systems to minimize the incident angle between the panels and incoming sunlight. This offers the advantage of improved harvesting of solar energy. However, there are no extensive qualitative and quantitative data from studies to elucidate the extent of this improvement. This paper presents the performance analysis for a 11.52 kW PV system with solar tracking installed as a pilot project in Limpopo, South Africa. The data collected from the site are analysed in this paper and results for the energy yield and system efficiency are presented. These results indicate that solar tracking improves the daily energy yield of the PV system by 18% on average, over a 10-month period and over 30% during summer.