Industrialization Pathways for Bifacial PERC Modules in Utility-Scale Tracker Installations: A Five-Year Field Performance Review

Abstract

Bifacial PERC modules deployed on single-axis trackers have moved from a pilot deployment curiosity in 2017 to the dominant utility-scale procurement choice in many North American and European auctions. Drawing on monitoring records from twelve utility-scale plants totaling 4.6 gigawatts of installed capacity, this review consolidates measured bifacial gain, soiling-loss profiles, ground-albedo dependence, and module-level degradation across plants commissioned between 2017 and 2020. We compare projected versus realized energy yield using a uniform irradiance and shading model, and we identify the dominant sources of observed-versus-modeled discrepancy. Recommendations for site-screening parameters, mounting geometry, and bankability-grade reliability protocols are provided. The work establishes a reference dataset that can support future risk-pricing and procurement-specification frameworks for the bifacial photovoltaic asset class.