Results from the Second International Module Intercomparison

Research output: Contribution to conferencePaper


The peak-watt rating is a primary indicator of PV performance. The peak power rating is the maximum electrical power that is produced when the PV device is continuously illuminated at 1000 Wm/sup-2/ total irradiance under International Electrotechnical Commission Standard 60904-2 reference spectrum, and 25 deg C cell temperature. Most manufacturers trace their peak-watt rating throughcalibrations performed at recognized terrestrial calibration facilities. Manufacturers typically perform intercomparisons among a set of their modules internally with other plants and among. Sometimes they have the same module measured at different calibration facilities to determine the differences in calibration. This intercomparison was to mimic this procedure and supply new thin film samplesalong with samples that could pose other problems. These intercomparisons sample the laboratories' everyday procedures better than a formal intercomparison where the laboratories' best procedures and data scrutiny are used.
Original languageAmerican English
Number of pages5
StatePublished - 2005
Event2005 DOE Solar Energy Technologies Program Review Meeting - Denver, Colorado
Duration: 7 Nov 200510 Nov 2005


Conference2005 DOE Solar Energy Technologies Program Review Meeting
CityDenver, Colorado

Bibliographical note

Presented at the 2005 DOE Solar Energy Technologies Program Review Meeting held November 7-10, 2005 in Denver, Colorado. Also included in the proceedings available on CD-ROM (DOE/GO-102006-2245; NREL/CD-520-38557)

NREL Publication Number

  • NREL/CP-520-38938


  • module intercomparison
  • NREL
  • photovoltaics (PV)
  • PV
  • solar


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