Trina Solar has begun mass production of n-type TOPCon double-glass bifacial modules. The company has reached 425 W in front side power output and an efficiency of 20.7% using 144 half-cut TOPCon cells (a traditional 72-cell footprint).
Trina reached the world record efficiency of 25.8% on single-side TOPCon cells last month. TOPCon (tunnel oxide passivated contact) uses a thin oxide layer to increase efficiency on silicon cells. Trina’s TOPCon cell has a front boron emitter and a rear full-area passivating contact.
News item from Trina Solar