Abstract
This work investigates how the spectrum of irradiance incident on the rear of solar modules impacts the degradation and performance of backsheets. We model the spectral irradiance incident on the rear of modules through raytrace simulations and validate with measured field data collected from a 75kW single axis-tracked bifacial test site. A generic equation to estimate relative degradation is proposed, and we show that current acceleration factors for UV damage in chambers can be sub-estimate up to 4.5% absolute from the usually assumed 10% dosage on the rear surfaces.
Original language | American English |
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Pages | 992-994 |
Number of pages | 3 |
DOIs | |
State | Published - 2022 |
Event | 49th IEEE Photovoltaics Specialists Conference, PVSC 2022 - Philadelphia, United States Duration: 5 Jun 2022 → 10 Jun 2022 |
Conference
Conference | 49th IEEE Photovoltaics Specialists Conference, PVSC 2022 |
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Country/Territory | United States |
City | Philadelphia |
Period | 5/06/22 → 10/06/22 |
Bibliographical note
See NREL/CP-5K00-81934 for preprintNREL Publication Number
- NREL/CP-5K00-85064
Keywords
- bifacial performance
- rear irradiance
- solar pv
- UV degradation