PERC (Passivated Emitter and Rear Cell) is a technology that improves the efficiency of conventional solar cells. In a PERC solar cell, the rear side is passivated with a dielectric layer that reduces recombination losses and reflects unused light back into the cell.
The main advantage of PERC technology is that it can increase efficiency without significantly increasing manufacturing complexity or cost.
In terms of cost and manufacturing complexity, PERC solar cells have a slight advantage over TOPCon technology. The production process for PERC cells is less complex and more established, which is reflected in lower costs. The manufacturing costs for PERC cells are around 10-15% lower than for TOPCon cells.
