







up to 25% efficiency · all-back-contact cells
All Back Contact moves every busbar and gridline to the rear of the cell.
With no metal ribbons shading the front, the whole face collects light, the highest efficiency on the residential market today.

~20-22% efficiency · PERC / TOPCon
Conventional panels run metal busbars across the front of every cell. Those ribbons block light and create hot spots, and a single shaded ribbon can pull down the whole string.




