Photovoltaic fleet degradation insights

作者：Dirk Jordan, Kevin Anderson, Kirsten Perry, Matthew Muller, Michael G. Deceglie, Robert White, Chris Deline · 发表于：Progress in Photovoltaics Research and Applications · 年份：2022 · DOI：10.1002/pip.3566 · 被引用次数：67 · 研究领域：Photovoltaic System Optimization Techniques、Solar Radiation and Photovoltaics、Photovoltaic Systems and Sustainability

Abstract In the PV Fleet Performance Data Initiative, high‐frequency data from commercial and utility‐scale photovoltaic (PV) systems have been collected to examine performance loss rates (PLRs) at a fleet scale. To date, performance data from more than 7.2‐gigawatt (GW) capacity, 1700 sites and 19,000 inverters—approximately equivalent to 6% to 7% of the entire US PV market—have been collected. An overall PLR of −0.75%/year was found, which is in line with historical and recent findings. Tracked silicon (Si) and cadmium telluride (CdTe) performed comparably with all fixed‐tilt systems. Higher PLRs were found for hotter temperature zones; cooler climates exhibit a median −0.48%/year loss, which increases to −0.88%/year in hotter climates. High‐efficiency module technologies showed median PLRs in line with conventional Si technologies but demonstrated markedly different PLR behavior when filtered only for low‐light conditions <600 W/m 2 . Causes for this technology‐dependent behavior are under investigation.