What is the Appropriate Reference Spectrum for Characterizing Concentrator Cells.

Emery, K. ; Myers, D. ; Kurtz, S.

Technical Information Center Oak Ridge Tennessee

关键词: Concentrator solar cells;    Spectrum analysis;    Standards;    Characterization;    Energy efficiency;   

RP-ID  :  DE200215000983

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

This conference paper describes Consensus standards for determining the efficiency of a concentrator cell or module that have not been developed. NREL, Sandia National Laboratory, the Fraunhofer Institute for Solar Energy in Germany, and the Progress in Photovoltaics Efficiency Table authors have informally agreed upon concentrator-cell reference conditions. These conditions are 25 deg C cell temperature, 1-sun =1000 W/m2 total irradiance, and the ASTM E891-87 direct-normal reference spectrum. Deficiencies in the direct reference spectrum are discussed, and a more representative reference spectrum for evaluating concentrator cells is proposed. The spectrum was generated by the SMARTS model, and the atmospheric parameters are as close as possible to the existing direct spectrum, with the exception that the aerosol optical depth at 500 nm is reduced from 0.27 to 0.085.