PERC PV Module 400 Wp

PERC means Passivated Emitter and Rear Contact. In order to reduce the surface losses from solar cell passivation treatment is applied to its surface. Passivation removes defects in the atomic structure at the silicon surface allowing more efficient extraction of energy from the solar cell. In this process passivation film has been applied on the rear surface of the cell using chemicals to create tiny pockets in the film that absorb more light, so that we get more power. The efficiency gains from PERC technology results into a 2 – 3% power increase as compared to conventional solar module technology.