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Title: Results of the Sophia module intercomparison part-1: stc, low irradiance conditions and temperature coefficients measurements of C-Si technologies
Authors: Mihaylov, Blagovest V.
Bowers, Jake W.
Betts, Thomas R.
Gottschalg, Ralph
Krametz, T.
Leidl, R.
Berger, K.A.
Zamini, Shokufeh
Dekker, N.J.J.
Graditi, G.
Roca, F.
Pellegrino, M.
Flaminio, G.
Pugliatti, P.
Di Stefano, A.
Aleo, F.
Gigliucci, G.
Ferrara, W.
Razongles, G.
Merten, J.
Pozza, A.
Santamaria Lancia, A.
Hoffmann, S.
Koehl, M.
Gerber, A.
Noll, J.
Paletta, F.
Friesen, Gabi
Dittmann, Sebastian
Keywords: Module
Uncertainty
Characterisation
Characterization
Issue Date: 2014
Publisher: WIP Renewable Energies
Citation: MIHAYLOV, B.V. ... et al, 2014. Results of the Sophia module intercomparison part-1: stc, low irradiance conditions and temperature coefficients measurements of C-Si technologies. IN: Proceedings of the 29th European Photovoltaic Solar Energy Conference and Exhibition, 23rd-25th September 2014, Amsterdam, pp. 2443 - 2448.
Abstract: The results of a measurement intercomparison between eleven European laboratories measuring PV energy relevant parameters are reported. The purpose of the round-robin was to assess the uncertainty analyses of the participating laboratories on c-Si modules and to establish a baseline for the following thin-film round-robin. Alongside the STC measurements, low irradiance conditions (200W/m2) and temperature coefficients measurements were performed. The largest measurement deviation from the median at STC was for HIT modules from -3.6% to +2.7% in PMAX, but in agreement with the stated uncertainties of the participants. This was not the case for low irradiance conditions and temperature coefficients measurements with some partners underestimating their uncertainties. Larger deviations from the median from -5% to +3% in PMAX at low irradiance conditions and -6.6% to +18.3% for the PMAX temperature coefficient were observed. The main sources of uncertainties contributing to the spread in measurements were the RC calibration, mismatch factor and capacitive effects at STC and low irradiance conditions as well as the additional light inhomogeneity for the latter. The uncertainty in the junction temperature and the temperature deviation across the module were the major contributors for temperature coefficients measurements.
Description: This conference paper is closed access.
Sponsor: B. Mihaylov would like to acknowledge his funding through the RCUK Supergen project ‘Supersolar’ [grant no: EP/J017361/1]. This work has been funded by the European FP7 SOPHIA project, grant number: 262533.
Version: Submitted for publication
DOI: 10.4229/EUPVSEC20142014-5DO.9.3
URI: https://dspace.lboro.ac.uk/2134/17776
Publisher Link: http://dx.doi.org/10.4229/EUPVSEC20142014-5DO.9.3
ISBN: 3936338345
Appears in Collections:Closed Access (CREST)

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