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Solar Pv Efficiency

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Efficiency of Solar Photovoltaic

Research and developemnt in Solar PV industry

Anushka Pal
Riga Technical University

Table of Contents Introduction: 4 Efficiency of solar cell 5 Factors affecting PV cell efficiency 14 Temperature 14 Dust 16 Solar irradiance 17 Losses in a solar cell 19 Optical losses 20 Collection losses 21 Resistance losses 21 Metal/semiconductor contacts 21 PV market 21 Cost analysis for PV 23 Parameters that can improve the efficiency of solar cell 30 Conclusions 31

Table of Figures: Figure 1 Best research cell efficiency 5 Figure 2 Measured efficiencies for LFC and PERC cells on p-type silicon 7 Figure 3 Progress in the conversion efficiency of HIT solar cells 8 Figure 4 Output power trends of single-sided HIT and bifacial HIT double modules throughout the year 9 Figure 5 Efficiency ratio of solar cells from a pilot solar series (300 cells). 11 Figure 6 Effect of temperature on PV cell characteristic. 14 Figure 7 Temperature effect on PV efficiency. 15 Figure 8 Effect of dust on PV cell power output. 16 Figure 9 Effect of irradiance on PV characteristic 17 Figure 10 PV module efficiency by different irradiation level 18 Figure 11 Energy output of PV for low radiation under 400 W/m2 18 Figure 12 PV power generation related to irradiance in a day 19 Figure 13 Photons with energy lower than the band gap energy 20 Figure 14 Evolution of world PV cell/module production through 2009 22 Figure 15 Poly-silicon price from 2008 to 2010 25 Figure 16 Cost of PV panel from 1995 to 2020. 25 Figure 17 Commercial PV efficiency vs. cost per watt. 27

Table of tables: Table 1Worldwide PV manufacture companies with respect of module efficiencies. 5 Table 2 Best demonstrated efficiencies for leading

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