|About this Abstract
||7th World Congress on Integrated Computational Materials Engineering (ICME 2023)
||Irradiance Simulation of Real World Field for PV Backsheets Degradation
||Zelin Li, Raymond J. Wieser, Xuanji Yu, Laura S. Bruckman
|On-Site Speaker (Planned)
Assessing the durability of photovoltaic (PV) module backsheet is critical to increasing module lifetime. Laboratory-based accelerated testing is inefficient in assessing large-scale failures of commercial polymeric materials. Additionally, there is growing concern that standard condition tests do not reflect non-uniformities in field exposure, and that certain modules experience more severe degradation due to their location. Anisotropy in field exposures is installation-dependent and reflects different levels of exposure to irradiance due to mounting geometry, ground surface albedo, and climatic zone. Bificial_Radiance, describes the amount of reflected irradiance on the backsheet using measured racking parameters. In our work, site specific weather data are gathered for the entire length of exposure for the modules. We then determined the total full-spectrum dose for the incident irradiance on the backsheet. The simulation results are integrated with historical field survey data to better understand outdoor exposures and allow us to better correlate with indoor accelerated tests.