Device Performance United States. Department of Energy. National Renewable Energy Laboratory (U.S.) 2006-06-01 English In the Device Performance group, within the National Center for Photovoltaic's Measurements and Characterization Division, we measure the performance of PV cells and modules with respect to standard reporting conditions--defined as a reference temperature (25 C), total irradiance (1000 Wm-2), and spectral irradiance distribution (IEC standard 60904-3). Typically, these are ''global'' reference conditions, but we can measure with respect to any reference set. To determine device performance, we conduct two general categories of measurements: spectral responsivity (SR) and current versus voltage (I-V). We usually perform these measurements using standard procedures, but we develop new procedures when required by new technologies. We also serve as an independent facility for verifying device performance for the entire PV community. We help the PV community solve its special measurement problems, giving advice on solar simulation, instrumentation for I-V measurements, reference cells, measurement procedures, and anomalous results. And we collaborate with researchers to analyze devices and materials. 14 Solar Energy 36 Materials Science Solar Energy - Photovoltaics Nrel Capabilities 42 Engineering Ncpv Simulation Measurements And Characterization Techniques Device Performance Distribution Measurements And Characterization Performance Related Information: National Renewable Energy Laboratory (NREL) Measurements & Characterization (Brochure) Report 4 p. Text rep-no: NREL/BR-520-40123 grantno: AC36-99-GO10337 doi: 10.2172/887347 osti: 887347 https://digital.library.unt.edu/ark:/67531/metadc876674/ ark: ark:/67531/metadc876674