TechnicalUp to date · Jan 15, 2026
PERC Cell (Passivated Emitter Rear Contact)
A silicon solar cell design that adds a passivation layer to the rear surface, reducing electron recombination and boosting efficiency to 21-23%. Formerly the industry standard.
Why It Matters
PERC was the dominant cell technology from 2018-2024. It's being superseded by TOPCon and HJT for new production, but billions of PERC panels remain in service.