Comparison of Module Performance Characterization Methods

B. Kroposki, W. Marion, D. L. King, W. E. Boyson, J. A. Kratochvil

Research output: Contribution to conferencePaperpeer-review

21 Scopus Citations


The rating and modeling of photovoltaic (PV) module performance has been of concern to manufacturers and system designers for over 20 years. Both the National Renewable Energy Laboratory (NREL) and Sandia National Laboratories (SNL) have developed methodologies to predict module and array performance under actual operating conditions. This paper compares the two methods of determining the performance of PV modules. The methods translate module performance to actual or reference conditions using slightly different approaches. The accuracy of both methods is compared for both hourly, daily, and annual energy production over a year of data recorded at NREL in Golden, CO. The comparison of the two methods will be presented for five different PV module technologies.

Original languageAmerican English
Number of pages5
StatePublished - 2000
Event28th IEEE Photovoltaic Specialists Conference, PVSC 2000 - Anchorage, United States
Duration: 15 Sep 200022 Sep 2000


Conference28th IEEE Photovoltaic Specialists Conference, PVSC 2000
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© 2000 IEEE.

NREL Publication Number

  • NREL/CP-520-28936


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