login

Search documents

Browse topics

Document details

 
Title:
 
Comparison of Angular Losses of PV Modules Using Various Diffuse Sky Models in Singapore
 
Author(s):
 
Y. S. Khoo, J.P. Singh, T.M. Walsh, A.G. Aberle
 
Keywords:
 
PV Module, Angular Losses, Textured Glass, Planar Glass
 
Topic:
 
COMPONENTS FOR PV SYSTEMS
Subtopic: PV Modules
Event: 28th European Photovoltaic Solar Energy Conference and Exhibition
Session: 4CO.11.2
 
Pages:
 
2872 - 2875
ISBN: 3-936338-33-7
Paper DOI: 10.4229/28thEUPVSEC2013-4CO.11.2
 
Price:
 
 
0,00 EUR
 
Document(s): paper
 

Abstract/Summary:


Photovoltaic (PV) modules are rated under standard test conditions with normally incident light, whereas under outdoor conditions photons arrive on a PV module surface at all angles. In this study, the angular losses of PV modules with planar and textured front glass are investigated for the tropical conditions of Singapore. Angular reflectance for both modules is first measured using a goniophotometer. From the measurements, the angular loss factors due to the different radiation components are calculated. Then, the angular losses under Singapore outdoor conditions are determined using three transposition models: Liu and Jordan, Hay and Davies, and Perez et alia. The annual angular loss and typical meteorological day angular loss for both module structures are studied. For all cases studied, the PV module with textured glass has consistently lower angular losses compared to the PV module with planar glass.