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Title: A Unified Global Investigation on the Spectral Effects of Soiling Losses of PV Glass Substrates: Preliminary Results

Abstract

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.

Authors:
ORCiD logo [1];  [2];  [3];  [4];  [5];  [6];  [7];  [8];  [2];  [9];  [10];  [4];  [2];  [1];  [11];  [4]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  2. University of Jaen
  3. Sol Ideas Technology Development
  4. University of Exeter
  5. Tezpur University
  6. Robert Gordon University
  7. South Valley University
  8. British University in Egypt
  9. BITS Pilani
  10. Academy of Scientific and Innovative Research
  11. Indian Institute of Technology Madras
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1515391
Report Number(s):
NREL/CP-5K00-73965
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the 2017 IEEE 44th Photovoltaic Specialist Conference (PVSC), 25-30 June 2017, Washington, D.C.
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 47 OTHER INSTRUMENTATION; photovoltaic systems; reliability; optical losses; soiling

Citation Formats

Micheli, Leonardo, Fernandez, Eduardo F., Smestad, Greg P., Alrashidi, Hameed, Sarmah, Nabin, Sellami, Nazmi, Hassan, Ibrahim A. I., Kasry, Amal, Nofuentes, Gustavo, Sood, Neeru, Pesala, Bala, Senthilarasu, S., Almonacid, Florencia, Muller, Matthew, Reddy, K. S., and Mallick, Tapas K. A Unified Global Investigation on the Spectral Effects of Soiling Losses of PV Glass Substrates: Preliminary Results. United States: N. p., 2018. Web. doi:10.1109/PVSC.2017.8366317.
Micheli, Leonardo, Fernandez, Eduardo F., Smestad, Greg P., Alrashidi, Hameed, Sarmah, Nabin, Sellami, Nazmi, Hassan, Ibrahim A. I., Kasry, Amal, Nofuentes, Gustavo, Sood, Neeru, Pesala, Bala, Senthilarasu, S., Almonacid, Florencia, Muller, Matthew, Reddy, K. S., & Mallick, Tapas K. A Unified Global Investigation on the Spectral Effects of Soiling Losses of PV Glass Substrates: Preliminary Results. United States. https://doi.org/10.1109/PVSC.2017.8366317
Micheli, Leonardo, Fernandez, Eduardo F., Smestad, Greg P., Alrashidi, Hameed, Sarmah, Nabin, Sellami, Nazmi, Hassan, Ibrahim A. I., Kasry, Amal, Nofuentes, Gustavo, Sood, Neeru, Pesala, Bala, Senthilarasu, S., Almonacid, Florencia, Muller, Matthew, Reddy, K. S., and Mallick, Tapas K. Mon . "A Unified Global Investigation on the Spectral Effects of Soiling Losses of PV Glass Substrates: Preliminary Results". United States. https://doi.org/10.1109/PVSC.2017.8366317.
@article{osti_1515391,
title = {A Unified Global Investigation on the Spectral Effects of Soiling Losses of PV Glass Substrates: Preliminary Results},
author = {Micheli, Leonardo and Fernandez, Eduardo F. and Smestad, Greg P. and Alrashidi, Hameed and Sarmah, Nabin and Sellami, Nazmi and Hassan, Ibrahim A. I. and Kasry, Amal and Nofuentes, Gustavo and Sood, Neeru and Pesala, Bala and Senthilarasu, S. and Almonacid, Florencia and Muller, Matthew and Reddy, K. S. and Mallick, Tapas K.},
abstractNote = {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.},
doi = {10.1109/PVSC.2017.8366317},
url = {https://www.osti.gov/biblio/1515391}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {11}
}

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