Temperature coefficients for PV modules and arrays: Measurement methods, difficulties, and results

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The term temperature coefficient has been applied to several different photovoltaic performance parameters, including voltage, current, and power. The procedures for measuring the coefficient(s) for modules and arrays are not yet standardized, and systematic influences are common in the test methods used to measure them. There are also misconceptions regarding their application. Yet, temperature coefficients, however obtained, play an important role in PV system design and sizing, where often the worst case operating condition dictates the array size. This paper describes effective methods for determining temperature coefficients for cells, modules, and arrays; identifies sources of systematic errors in measurements; gives … continued below

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5 p.

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King, David L.; Kratochvil, Jay A. & Boyson, William E. November 1, 1997.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by the UNT Libraries Government Documents Department to the UNT Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 1477 times, with 75 in the last month. More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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The term temperature coefficient has been applied to several different photovoltaic performance parameters, including voltage, current, and power. The procedures for measuring the coefficient(s) for modules and arrays are not yet standardized, and systematic influences are common in the test methods used to measure them. There are also misconceptions regarding their application. Yet, temperature coefficients, however obtained, play an important role in PV system design and sizing, where often the worst case operating condition dictates the array size. This paper describes effective methods for determining temperature coefficients for cells, modules, and arrays; identifies sources of systematic errors in measurements; gives typical measured values for modules; and provides guidance for their application in system engineering.

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5 p.

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OSTI as DE98001183

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  • 26. IEEE photovoltaic specialists conference, Anaheim, CA (United States), 29 Sep - 3 Oct 1997

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  • Other: DE98001183
  • Report No.: SAND--97-1169C
  • Report No.: CONF-970953--
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 548687
  • Archival Resource Key: ark:/67531/metadc696571

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  • November 1, 1997

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  • Aug. 14, 2015, 8:43 a.m.

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  • Aug. 12, 2022, 3:57 p.m.

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King, David L.; Kratochvil, Jay A. & Boyson, William E. Temperature coefficients for PV modules and arrays: Measurement methods, difficulties, and results, article, November 1, 1997; Albuquerque, New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc696571/: accessed April 25, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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