Working towards the development of a standardized artificial soiling method

Sravanthi Boppana, Vidyashree Rajasekar, Govindasamy Tamizhmani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Solar glass coatings for photovoltaic (PV) modules include antireflection and antisoiling coatings. There are increasing number of claims related to dust resistant, abrasion resistant (during cleaning) and self-cleaning solar glass coatings. Currently, there is no standardized way of verifying the validity of such claims. As a first step towards validating such claims, the industry needs to develop a standardized artificial soiling method with actual laminated module construction of glass / EVA / cell / EVA / backsheet. This paper presents an approach for working towards the development of a standardized artificial soiling method for laminated photovoltaic (PV) cells or mini-modules. In this study, poly-Si mini-modules and single-cell mono-Si coupons were soiled and characterized using I-V, reflectance and quantum efficiency (QE) to calculate the effect of soiling on performance. From the results, the technique was found to be repeatable and soil pattern was uniform for both mini-modules and single cell coupons. The study compares poly-Si mini-modules with single-cell mono-Si to identify the ideal coupon for artificial soiling. Poly-Si mini-modules proved to be a good measure of soil uniformity, as any non-uniformity would effect the smoothness of curve at near Isc during I-V measurements. Single-cell mono-Si was identified to be more suitable for reflectance and QE measurements. This study indicates that the reflectance measurements between 600-700 nm wavelengths can be used as a direct measure to determined soil density on the modules.

Original languageEnglish (US)
Title of host publication2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479979448
DOIs
StatePublished - Dec 14 2015
Event42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 - New Orleans, United States
Duration: Jun 14 2015Jun 19 2015

Other

Other42nd IEEE Photovoltaic Specialist Conference, PVSC 2015
CountryUnited States
CityNew Orleans
Period6/14/156/19/15

Keywords

  • Performance loss
  • Photovoltaic Cells
  • Soiling

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

Fingerprint Dive into the research topics of 'Working towards the development of a standardized artificial soiling method'. Together they form a unique fingerprint.

Cite this