Amorphous, mono- And poly-crystalline silicon PV modules: A comparative study of their relative efficiencies under various outdoor conditions

David Faiman, Dov Bukobza, Shlomo Kabalo, Indra Karki, Bryan Medwed, Vladimir Melnichak, Edwin De Held, Henk Oldenkamp

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

3 sets of PV modules, each set having Si cells of a different morphological structure (a-, me- and pc- ), were operated side-by-side as grid-connected systems, and continuously monitored for one year. The resulting hourly data were re-normalized in a number of alternative ways so as to permit meaningful efficiency comparisons. In particular, comparisons were made with respect to (1) Total system efficiency; (2) Specific energy delivery [Wh/Wp(STC)]. The purpose of the study was to identify external conditions under which the relative rating of any pair of module types can become interchanged. We find that although the a-Si system gave a higher specific energy delivery throughout the summer half of the year, on an all-year basis, the c-Si modules produced slightly higher overall figures. The slight summer advantage of a-Si is attributed to a combination of spectrum and temperature effects.

Original languageEnglish
Title of host publicationProceddings of the 3rd World Conference on Photovoltaic Energy Conversion
EditorsK. Kurokawa, L.L. Kazmerski, B. McNeils, M. Yamaguchi, C. Wronski
Pages1938-1941
Number of pages4
StatePublished - 1 Dec 2003
EventProceddings of the 3rd World Conference on Photovoltaic Energy Conversion - Osaka, Japan
Duration: 11 May 200318 May 2003

Publication series

NameProceedings of the 3rd World Conference on Photovoltaic Energy Conversion
VolumeB

Conference

ConferenceProceddings of the 3rd World Conference on Photovoltaic Energy Conversion
Country/TerritoryJapan
CityOsaka
Period11/05/0318/05/03

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