Efficiency of solar radiation conversion in photovoltaic panels

Abstract

Abstract. This paper included analysis the conversion efficiency in photovoltaic panels. The tests were done between February and June at a test stand equipped with three commonly used types of photovoltaic panels: poly-and monocrystalline silicon and with semi-conductive layer made of copper (Cu), indium (In), gallium (Ga) and selenium (Se) (CIGS). Five days of each month were selected for a detailed analysis. They were close to the so-called recommended day for calculations in solar power engineering. Efficiency, calculated as the yield of electrical energy in relation to solar radiation energy reaching the panels was made conditional upon solar radiation intensity and ambient temperature. It was found that as solar radiation intensity and ambient temperature increase, the efficiency of solar radiation conversion into electricity is reduced. Correlation dependence was determined for the test data obtained, describing temperature change of panels depending on climatic conditions. It was found that as panel temperature increases, the conversion efficiency is reduced. Within the tested scope of experiment conditions, the efficiency was reduced in the range between 20.1 and 22.8%. The authors also determined the average efficiency values in individual test months together with average ambient conditions of the environment where the process of solar radiation conversion took place.

Advances in nano sensors for monitoring and optimal performance enhancement in photovoltaic cells

“… 104 The photovoltaic effect is the conversion process where solar radiation energy is converted into electrical energy. 105 The photovoltaic effect occurs due to the interaction between sunlight and the unique molecular structure of semiconductors used in solar cells. 106 Solar panels, or photovoltaic panels, are the fundamental component of any photovoltaic system.…”

The Influence of Weather Conditions on the Optimal Setting of Photovoltaic Thermal Hybrid Solar Collectors—A Case Study

“…The conversion efficiency of solar panels is influenced by numerous factors, such as the type of device, the applied technology and materials [15][16][17][18], solar radiation parameters [19][20][21][22] and weather conditions (ambient temperature, wind and particulate pollution) [23][24][25][26][27][28]. From the practical point of view, these parameters are largely variable and independent because users can only control the collector's orientation relative to the angle at which the incoming insolation strikes the absorber [29][30][31][32][33][34].…”