Description

SHINE PV will develop alternative technological routes to PV production for Silicon Heterojunction and TOPCon solar cells, covering the three key steps in the back-end manufacturing: metallization, post-processing and interconnection.

SHINE PV will demonstrate different flows and down-select the most promising ones in terms of cost of ownership and High Volume Manufacturing (HVM) readiness. Advanced equipment at TRL7 with Industry 4.0 dedicated features, innovative materials and solutions will be developed.

For the metallization, SHINE PV will introduce parallel dispensing and plating as HVM alternative processes to incumbent screen printing, with the objective of demonstrating the complete or partial replacement of Ag with Cu, a fundamental step to enable Tera-Watt scale production levels. Moreover, SHINE PV will increase the efficiency through cell post-processing by applying Light Soaking process in HVM and recover the cutting-induced losses by Edge Re-Passivation. For the module making step, the innovations in interconnection proposed are Twill and Shingling processes and HVM equipment. Both will leverage on the optimization of the metallization and post-processing steps and will demonstrate their potential in terms of superior electrical properties, aesthetics, reliability, and compatibility with premium module designs.

The expectation of the project is to enable an increase of solar cell (or module) efficiency of 0.5% absolute versus the reference process with a simultaneous CoO reduction of 20%, due to reduced material costs and increased equipment productivity. SHINE PV project will demonstrate the integrated innovative processes and novel equipment both virtually and within physical pilots at industrial partners at TRL7 aiming to revamp a PV supply chain in EU.