Efficiency of fixed and tracking photovoltaic panel
2014
Zagorska, V., Latvia Univ. of Agriculture, Jelgava (Latvia) | Kancevica, L., Latvia Univ. of Agriculture, Jelgava (Latvia) | Putans, H., Latvia Univ. of Agriculture, Jelgava (Latvia) | Ziemelis, I., Latvia Univ. of Agriculture, Jelgava (Latvia)
The paper presents the results of four year experimental investigation on the efficiency of photovoltaic panel PVM10/PF working in Latvia meteorological conditions during March-October, 2009-2013. Regardless of relatively small intensity of solar radiation and the number of sunny hours in the Baltic region, there are areas where it is economically reasonable to use photo-electric converters or photovoltaic panels for production of electricity and heat energy. The conversion efficiency of a panel depends on the materials and technology used at its production, on the intensity of solar radiation, as well as the panel inside and outside air temperature. The intensity of solar radiation during summer months has been measured and the ratio of solar energy transfer into electric energy, when the panel was working at stationary fixed and tracking the sun mode has been stated. It was established that working in tracking the sun mode the yearly output of the solar panel is 1.41 times higher than working at a fixed position, but considering only clear sunny days 1.59 times higher.
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