A Unified Global Investigation on the Spectral Effects of Soiling Losses of PV Glass Substrates: Preliminary Results
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- University of Jaen
- Sol Ideas Technology Development
- University of Exeter
- Tezpur University
- Robert Gordon University
- South Valley University
- British University in Egypt
- BITS Pilani
- Academy of Scientific and Innovative Research
- Indian Institute of Technology Madras
The present work reports on the initial results of an international collaboration aiming to investigate the spectral effects of soiling losses. Identical glass coupons have been exposed outdoors for eight weeks in different locations worldwide, and weekly direct and hemispherical transmittance (T%) measurements are compared. Maximum losses as high as 7% and 50% in hemispherical and direct transmittance, respectively, have been found during the 8-week outdoor exposure. At the end of the data collection, a preliminary analysis of the spectral impact of soiling has been performed. The results show that the blue end of the spectrum is more affected and that lower hemispherical T% correlate to larger area covered by particles.
- Research Organization:
- National Renewable Energy Laboratory (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- DOE Contract Number:
- AC36-08GO28308
- OSTI ID:
- 1515391
- Report Number(s):
- NREL/CP-5K00-73965
- Country of Publication:
- United States
- Language:
- English
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