Automated photovoltaic panel positioning device for solar radiation monitoring

Electricity generation from photovoltaic plant is dependent on the panels position and it can be improved with sun tracking device. Decision about such implementation of such devices is always doubtful because in many cases no relevant data are available to make certain decision. In order to empirically test such questions device with a fully automated two axes rotator is equipped with three solar panel of monocrystalline, polycrystalline and amorphous PV solar cells to permanently obtain data for the different preprogrammed positions in azimuth range between 0° (East) to 180° (West) and elevation between 0° (vertical) to 90° (horizontal). Relevant parameters are continuously measured and acquired for each panel and position in to the database: short circuit current, open circuit voltage and fixed load current-voltage values. These data are permanently acquired during one year and after processing could be relevant base to help make better decision when different positioning or sun tracking device is considered for photovoltaic plant at measured location.