Title: RESULTS OF THE SOPHIA MODULE INTERCOMPARISON PART-2: STC, LOW IRRADIANCE CONDITIONS AND TEMPERATURE COEFFICIENTS MEASUREMENTS OF THIN FILM TECHNOLOGIES
Authors: MIHAYLOV BBOWERS J.w.BETTS Thomas R.GOTTSCHALG RalphKRAMETZ TLEIDL RBERGER K. A.ZAMINI ShokufehDEKKER NGRADITI GROCA FrancescoPELLEGRINO MicheleFLAMINIO GRAZONGLES GMERTEN JensPOZZA ALBERTOSALIS ELENAKENNY RobertFRIESEN GabiDITTMANN S
Publisher: WIP
Publication Year: 2015
JRC N°: JRC95004
ISBN: 3-936338-39-6
ISSN: 2196-100X
URI: http://www.eupvsec-proceedings.com/
http://www.eupvsec-planner.com/presentations/c35099/results_of_the_sophia_module_intercomparison_part-2_stc_low_irradiance_conditions_and_temperature_coefficients_measurements_of_thin_film_technologies.htm
http://publications.jrc.ec.europa.eu/repository/handle/JRC95004
DOI: 10.4229/EUPVSEC20152015-5DO.11.2
Type: Articles in periodicals and books
Abstract: The results of a measurement intercomparison between seven European laboratories characterising PV modules are reported. The purpose of the round-robin was to support the development of better measurement practices for thin-film devices, to assess the uncertainty analyses of the participating laboratories on thin-film modules and assess the variability of preconditioning techniques between partners. Alongside the STC measurements, measurements at 200 W/m2 and temperature coefficients (TC) measurements were performed. The benchmarking c- Si modules PMAX measurements were within ±1.9% and in agreement with stated uncertainties. The preconditioned PMAX measurements were within ±2.2 and -1.7% to +3.1% for the two CIGS types and in agreement with stated uncertainties. Both electrical biasing and light soaking increased the PMAX of the modules to a similar extent. The Tandem and CdTe preconditioned STC measurements were within -6% to +5.4% and -7.9% to +11.9% respectively. The measurement deviation of the out-of-the-box measurements of the Tandem and CdTe modules was in general smaller than the preconditioned ones emphasising the need of further investigation of preconditioning procedures for these type of devices. The measurement deviation at low-irradiance was larger than at STC as expected. The relative PMAX TC (%/°C) measurements were within -16.7% and +12.6%. with the exception of one CIGS module type where the deviation was as large as ±33%. This larger deviation is attributed to short timescale metastability effects.
JRC Directorate:Energy, Transport and Climate

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