Title: Energy rating based on thermal modelling of five different PV technologies
Authors : Carigiet, Fabian
Baumgartner, Franz
Sutterlueti, Juergen
Allet, Nicolas
Pezzotti, Manuel
Haller, Joerg
Proceedings: 29th european photovoltaic solar energy conference and exhibition (EU PVSEC 2014) : Amsterdam, The Netherlands 22-26 September 2014
Conference details: 29th European Photovoltaic Solar Energy Conference and Exhibition (29th EUPVSEC), Amsterdam, Netherlands, 23-25 September 2014
Publisher / Ed. Institution : Curran
Issue Date: 2014
License (according to publishing contract) : Licence according to publishing contract
Type of review: Peer review (Abstract)
Language : English
Subjects : Thermal Modelling; Loss Factors; Performance Ratio; Energy Rating
Subject (DDC) : 621.3: Electrical engineering and electronics
Abstract: Minute by minute outdoor measurements of five commercial PV modules including multi c-Si, HIT, a-Si/μc-Si, CIS, CdTe over one year were used to develop a model for predicting the individual module temperatures. The simulated module temperatures over a whole year in minute interval correspond to the outdoor measured values within a RMSE of 1.5°C. Input of the model includes irradiance measurements, which are extracted from the measured short circuit current ISC, the measured wind speed and the ambient temperature. The measured energy weighted module temperature for Zurich was found to be between 33.3°C and 38.0°C for the different module types with a maximum difference of 0.8°C relative to the simulated average module temperature. Due to the high module temperature, the annual average efficiency was reduced relative to the STC values by only 2.6% (HIT) and 5.6% (CIS). Another reduction of the STC efficiency could clearly be attributed to the efficiency at low ISC values which classify low irradiance values. The value is a decrease of the annual energy output of 4.7% and an increase of 1.1%. A further loss analysis was performed to separate spectrum related losses resulting in a relative difference of 2% for the tandem compared to the multi c-Si module.
Departement: School of Engineering
Organisational Unit: Institute of Energy Systems and Fluid Engineering (IEFE)
Publication type: Conference Paper
ISBN: 978-1-5108-0018-2
URI: https://digitalcollection.zhaw.ch/handle/11475/12504
Appears in Collections:Publikationen School of Engineering

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