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Proceedings Paper

Spectral optimization of CPV for integrated energy output
Author(s): Mark McDonald; Chris Barnes
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Paper Abstract

The series electrical nature of the multi-junction solar cell is both the source of its desirable overall efficiency and of its sensitivity to spectral balance. Owing to the series connection of the spectrally selective junctions, variations in the spectra of the solar input, optical transfer function, and cell quantum efficiency have significant impact on annual energy production despite being effectively indistinguishable in instantaneous power output. This paper will outline spectral filtering approaches for experimental characterization, and spectral simulation methods for estimating annual energy production. We will also present system level design to optimize for annual energy production.

Paper Details

Date Published: 28 August 2008
PDF: 12 pages
Proc. SPIE 7046, Optical Modeling and Measurements for Solar Energy Systems II, 704604 (28 August 2008); doi: 10.1117/12.793447
Show Author Affiliations
Mark McDonald, SolFocus, Inc. (United States)
Chris Barnes, SolFocus, Inc. (United States)

Published in SPIE Proceedings Vol. 7046:
Optical Modeling and Measurements for Solar Energy Systems II
Benjamin K. Tsai, Editor(s)

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