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Investigating the Impact of Ground Albedo on the Performance of PV Systems

Kotak, Yash; Gul, M S; Muneer, Tariq; Ivanova, S M

Authors

Yash Kotak

M S Gul

S M Ivanova



Abstract

Several factors influence the energy generation of Photovoltaic (PV) installations. A ground albedo value of 0.2 is widely accepted and is used in modelling of PV systems. Foreground surfaces may have different albedo and hence a constant albedo value is unsuitable. This paper analysed a real PV facade of a university building. The results show, that in the present case, using a constant albedo value may underestimate the incident ground reflected radiation by 31%. A discussion is also provided on applying white cool paint on foreground surfaces to further increase the receipt of reflected-radiation on PV modules

Presentation Conference Type Conference Paper (Published)
Conference Name CIBSE Technical Symposium
Start Date Apr 16, 2015
End Date Apr 17, 2015
Publication Date 2015
Deposit Date Jan 14, 2016
Publicly Available Date Jan 14, 2016
Peer Reviewed Peer Reviewed
Keywords PV facades; Ground albedo; Ground reflectance; radiation exchange;
Public URL http://researchrepository.napier.ac.uk/id/eprint/9431
Contract Date Jan 14, 2016

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