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Title: The Abrasion of Photovoltaic Glass: A Comparison of the Effects of Natural and Artificial Aging

Abstract

Natural soiling and the subsequent requisite cleaning of photovoltaic (PV) modules result in abrasion damage to the cover glass. The durability of the front glass has important economic consequences, including determining the use of antireflective and/or antisoiling coatings as well as the method and frequency of operational maintenance (cleaning). The abrasion of coatings and glass has been explored in a field study, including the soiling-prone locations of Dubai (United Arab Emirates), Kuwait City (Kuwait), Mesa (Arizona), Mumbai (India), and Sacramento (California). Dry-brush-cleaned specimens will be compared with those subjected to artificial-brush testing. The characteristics of material integrity, surface energy, optical transmittance, surface roughness, and scratch size were examined using an optical microscope, contact goniometer (for water), spectrophotometer, interferometer, and atomic force microscope, respectively. The findings of this article will be used to provide feedback regarding the cleaning equipment, cleaning methods, and coatings used in the PV industry. The study here will also be used to aid in developing an abrasion standard for the PV industry.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1];  [2];  [1]; ORCiD logo [1];  [1];  [1];  [1];  [3];  [3];  [1]; ORCiD logo [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  2. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  3. Dubai Electricity and Water Authority (DEWA), Dubai (United Arab Emirates)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S)
OSTI Identifier:
1593087
Report Number(s):
NREL/JA-5K00-73164
Journal ID: ISSN 2156-3381
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
IEEE Journal of Photovoltaics
Additional Journal Information:
Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 2156-3381
Publisher:
IEEE
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 36 MATERIALS SCIENCE; abrasion; antireflective coating; antisoiling coating; erosion; operations maintenance

Citation Formats

Miller, David C., Einhorn, Asher, Lanaghan, Clare, Newkirk, James, To, Bobby, Holsapple, Derek, Morse, Joshua, Ndione, Paul F., Moutinho, Helio R., Alnuaimi, Aaesha, John, Jim J., Simpson, Lin J., and Engtrakul, Chaiwat. The Abrasion of Photovoltaic Glass: A Comparison of the Effects of Natural and Artificial Aging. United States: N. p., 2019. Web. doi:10.1109/JPHOTOV.2019.2947029.
Miller, David C., Einhorn, Asher, Lanaghan, Clare, Newkirk, James, To, Bobby, Holsapple, Derek, Morse, Joshua, Ndione, Paul F., Moutinho, Helio R., Alnuaimi, Aaesha, John, Jim J., Simpson, Lin J., & Engtrakul, Chaiwat. The Abrasion of Photovoltaic Glass: A Comparison of the Effects of Natural and Artificial Aging. United States. doi:10.1109/JPHOTOV.2019.2947029.
Miller, David C., Einhorn, Asher, Lanaghan, Clare, Newkirk, James, To, Bobby, Holsapple, Derek, Morse, Joshua, Ndione, Paul F., Moutinho, Helio R., Alnuaimi, Aaesha, John, Jim J., Simpson, Lin J., and Engtrakul, Chaiwat. Fri . "The Abrasion of Photovoltaic Glass: A Comparison of the Effects of Natural and Artificial Aging". United States. doi:10.1109/JPHOTOV.2019.2947029.
@article{osti_1593087,
title = {The Abrasion of Photovoltaic Glass: A Comparison of the Effects of Natural and Artificial Aging},
author = {Miller, David C. and Einhorn, Asher and Lanaghan, Clare and Newkirk, James and To, Bobby and Holsapple, Derek and Morse, Joshua and Ndione, Paul F. and Moutinho, Helio R. and Alnuaimi, Aaesha and John, Jim J. and Simpson, Lin J. and Engtrakul, Chaiwat},
abstractNote = {Natural soiling and the subsequent requisite cleaning of photovoltaic (PV) modules result in abrasion damage to the cover glass. The durability of the front glass has important economic consequences, including determining the use of antireflective and/or antisoiling coatings as well as the method and frequency of operational maintenance (cleaning). The abrasion of coatings and glass has been explored in a field study, including the soiling-prone locations of Dubai (United Arab Emirates), Kuwait City (Kuwait), Mesa (Arizona), Mumbai (India), and Sacramento (California). Dry-brush-cleaned specimens will be compared with those subjected to artificial-brush testing. The characteristics of material integrity, surface energy, optical transmittance, surface roughness, and scratch size were examined using an optical microscope, contact goniometer (for water), spectrophotometer, interferometer, and atomic force microscope, respectively. The findings of this article will be used to provide feedback regarding the cleaning equipment, cleaning methods, and coatings used in the PV industry. The study here will also be used to aid in developing an abrasion standard for the PV industry.},
doi = {10.1109/JPHOTOV.2019.2947029},
journal = {IEEE Journal of Photovoltaics},
number = 1,
volume = 10,
place = {United States},
year = {2019},
month = {11}
}

Journal Article:
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This content will become publicly available on November 15, 2020
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