Research on decrease of cell to module loss for crystalline silicon photovoltaic module

After producing crystalline Si (c-Si) solar module, the output power of the c-Si module was decreased compared to the total amount of c-Si cells' power due to the increase of series resistance and the light absorption of the cover glass and encapsulant. We define this power loss as cell to module (CTM) loss and the decreasing power rate as CTM conversion ratio (CR). The typical CTM CR in other groups has a value of about 94%. The CTM CR is typically decreased with increasing the efficiency of solar cell due to the increase of I 2 R loss. In this experiment, we have focused on the increase of CTM CR through detail analysis to each module component. As a result, the CTM CR in c-Si photovoltaic modules can be significantly increased by appropriately optimizing a module component. The maximum CTM CR in this experimental obtained about 97% using 19% efficiency cells, and it is 264.1W power in 6 x 10 string module. (C) 2013 AIP Publishing LLC.