Results of the PEP'93 intercomparison of reference cell calibrations and newer technology performance measurements

This paper presents the results of an international intercomparison of photovoltaic (PV) performance measurements and calibrations. The intercomparison, which was organized and operated by a group of experts representing national laboratories from across the globe (i.e., the authors of this paper),...

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Main Authors: Osterwald, C.R., Anevsky, S., Barua, A.K., Dubard, J., Emery, K., King, D., Metzdorf, J., Nagamine, F., Shimokawa, R., Udayakumar, N., Wang, Y.X., Wittchen, T., Zaaiman, W., Zastrow, A., Zhang, J.
Format: Conference Proceeding
Language:English
Subjects:
Calibration
Energy measurement
Laboratories
Metrology
Photovoltaic systems
Quality assurance
Renewable energy resources
Solar power generation
Standardization
Testing
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Summary:This paper presents the results of an international intercomparison of photovoltaic (PV) performance measurements and calibrations. The intercomparison, which was organized and operated by a group of experts representing national laboratories from across the globe (i.e., the authors of this paper), was accomplished by circulating two sample sets. One set consisted of twenty silicon reference cells that would, hopefully, form the basis of an international PV reference scale. A qualification procedure applied to the calibration results gave average calibration numbers with an overall standard deviation of less than 2% for the entire set. The second set was assembled from a wide range of newer technologies that present unique problems for PV measurements. As might be expected, these results showed much larger differences among laboratories. Methods were then identified that should be used to measure such devices, along with problems to avoid.
ISSN:0160-8371
DOI:10.1109/PVSC.1996.564362