Performance evaluation of dual axis solar tracking system with photo diodes

Continuous evolution of the technology determined a sustained increase of the conversion efficiency of PV panels, but nonetheless the most part of the commercial panels have efficiencies no more than 20%. A constant research preoccupation of the technical community involved in the solar energy harnessing technology refers to various solutions to increase the PV module conversion efficiency. Among PV efficiency improving solutions we can mention: solar tracking, optimization of solar cells geometry, enhancement of light trapping capability, use of new materials and so forth. This study is performed to investigate the performance of photovoltaic systems with photo diodes oriented solar tracking system. The result from daily analyses and two season comparative analyses shows, as expected, that in clear days the dual axis tracker photovoltaic system provides the highest performance and great performance in the summer season during higher tilt angle of the sun.