Modules: Pushing to the efficiency summit

Selecting a winner from this year’s crop of modules was a difficult task. Perovskite-silicon tandem products were on the shortlist for the first time, provoking serious discussion, but questions remain over the market readiness of this technology. Several entries exemplified the industry’s impressive progress with tunnel oxide passivated contact (TOPCon) technology, including new milestones in efficiency, bifacial performance, and overall power rating. Ultimately, the jurors chose a winner that is treading a different technology pathway, the one most likely to bring single-junction silicon solar to its practical performance limits.