Temperature coefficients for PV modules and arrays [electronic resource] : Measurement methods, difficulties, and results

Published: Washington, D.C. : United States. Dept. of Energy, 1997.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description: 5 pages : digital, PDF file
Additional Creators: Sandia National Laboratories, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information

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Summary

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.

Report Numbers

E 1.99:sand--97-1169c
E 1.99: conf-970953--
conf-970953--
sand--97-1169c

Subject(s)

Solar Energy

Other Subject(s)

Note

Published through SciTech Connect.
11/01/1997.
"sand--97-1169c"
" conf-970953--"
"DE98001183"
"EB2203000"
26. IEEE photovoltaic specialists conference, Anaheim, CA (United States), 29 Sep - 3 Oct 1997.
King, D.L.; Kratochvil, J.A.; Boyson, W.E.

Funding Information

AC04-94AL85000

View MARC record | catkey: 14796173