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Title: Enhanced Photovoltaic Soiling in an Urban Environment

Abstract

Natural soiling, or the deposition of ambient particulate matter (PM) onto the surface of solar glass, causes losses in PV production around the world. Much work in the PV community has focused on soiling in dusty desert environments. However, PV systems in urban environments are exposed to different contaminants and thus soil differently. We present an analysis of PV soiling in such an urban environment considering the impacts of meteorological parameters. We present 1 year of results from a soiling station in an urban location in Colorado. Bare glass samples were exposed outdoors for 11 days alongside the station; results from microscopy and light transmittance measurements show how moisture and dew affect the morphology and optics of contamination on glass. The coupon results suggest that natural (rain) cleanings may not be sufficient to clean solar panels in urban environments. Ion chromatography of soiling on the reference cell surfaces suggest that dry brush cleanings may not sufficiently clean chemicals deposited on solar panel surfaces in urban environments.

Authors:
 [1];  [2];  [2];  [1]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  2. University of Colorado
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:
1603904
Report Number(s):
NREL/CP-5K00-74102
DOE Contract Number:  
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC), 16-21 June 2019, Chicago, Illinois
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; 42 ENGINEERING; solar energy; solar panels; soil; photovoltaic cells

Citation Formats

Toth, Sarah, Hannigan, Michael, Vance, Marina, and Deceglie, Michael G. Enhanced Photovoltaic Soiling in an Urban Environment. United States: N. p., 2020. Web. doi:10.1109/PVSC40753.2019.8980735.
Toth, Sarah, Hannigan, Michael, Vance, Marina, & Deceglie, Michael G. Enhanced Photovoltaic Soiling in an Urban Environment. United States. doi:10.1109/PVSC40753.2019.8980735.
Toth, Sarah, Hannigan, Michael, Vance, Marina, and Deceglie, Michael G. Thu . "Enhanced Photovoltaic Soiling in an Urban Environment". United States. doi:10.1109/PVSC40753.2019.8980735.
@article{osti_1603904,
title = {Enhanced Photovoltaic Soiling in an Urban Environment},
author = {Toth, Sarah and Hannigan, Michael and Vance, Marina and Deceglie, Michael G},
abstractNote = {Natural soiling, or the deposition of ambient particulate matter (PM) onto the surface of solar glass, causes losses in PV production around the world. Much work in the PV community has focused on soiling in dusty desert environments. However, PV systems in urban environments are exposed to different contaminants and thus soil differently. We present an analysis of PV soiling in such an urban environment considering the impacts of meteorological parameters. We present 1 year of results from a soiling station in an urban location in Colorado. Bare glass samples were exposed outdoors for 11 days alongside the station; results from microscopy and light transmittance measurements show how moisture and dew affect the morphology and optics of contamination on glass. The coupon results suggest that natural (rain) cleanings may not be sufficient to clean solar panels in urban environments. Ion chromatography of soiling on the reference cell surfaces suggest that dry brush cleanings may not sufficiently clean chemicals deposited on solar panel surfaces in urban environments.},
doi = {10.1109/PVSC40753.2019.8980735},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {2}
}

Conference:
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