Intercomparison of PTB and ESTI Spectroradiometers Using Simulated and Natural Sunlight

JRC ESTI and PTB performed a comparison of spectral irradiance measurements on various light sources at the JRC premises. The measured sources included four standard lamps (two calibrated by PTB and two calibrated by NPL), an outdoor solar spectral irradiance measurement under clear sky condition, a steady-state solar simulator for PV solar cell calibration (WACOM) and a steady-state large area solar simulator (APOLLO). The PTB system is composed of three compact array spectroradiometers (CAS) equipped with Si, InGaAs, and extended range InGaAs detectors, respectively, in order to cover the wavelength range from 250 to 2100 nm. The JRC-ESTI rotating grating spectroradiometer is composed by a single stage monochromator and a Si-PbS sandwich detector in order to cover the wavelength range from 300 to 2500 nm. All instruments were calibrated in house by the respective owner institution using respective procedures and traceability chains. The measured spectra will be compared and deviations will be discussed with respect to the given uncertainties. Finally exemplary spectral mismatch calculations will be shown in order to evaluate the impact of the deviations on PV device calibration.

KROEGER Ingo;  GALLEANO Roberto;  PLAG Fabian;  MUELLEJANS Harald;  WINTER Stefan; 

2016-07-29

WIP Munich

JRC102152

3-936338-41-8,   

http://www.eupvsec-proceedings.com/proceedings?fulltext=Calibration,    of,    Spectroradiometers,    for,    Outdoor,    Direct,    Solar,    Spectral,    Irradiance,    Measurements&paper=36762,    https://publications.jrc.ec.europa.eu/repository/handle/JRC102152,   

10.4229/EUPVSEC20162016-5BV.4.20,