Unlike traditional solar panels which use soldered ribbons to interconnect the cells, shingled cell panels instead use electrically conductive adhesive (ECA) which reduces stress on the cells during manufacture. Additionally, as panels heat up and expand slightly during the day traditional solder ribbon expands and can eventually fail while the conductive adhesive used on shingled cells helps reduce the internal stresses due to thermal expansion.
Another benefit of using the shingled cell format where the strings of cells are assembled horizontally across the panel is the improved shade tolerance. Since each string of cells is essentially independent, if one or more strings are shaded it does not reduce the current of the other strings.
Shingled cells in strings are able to operate independently and perform very well under partially shaded conditions
Maximum Power at STC | 480W | 485W | 490W |
Maximum Power Voltage (Vmp) | 38.31V | 38.62V | 38.86V |
Maximum Power Current (Imp) | 12.53A | 12.57A | 12.61A |
Open-circuit Voltage (Voc) | 46.61V | 46.68V | 46.75V |
Short-circuit Current (Isc) | 13.21A | 13.33A | 13.45A |
Module Efficiency | 20.4% | 20.6% | 20.8% |
Maximum System Voltage | 1500V | 1500V | 1500V |