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Proceedings Paper

CPV semi-dense array design for dish and tower collectors
Author(s): Herb Hayden; Paul Thomas; Nicholas Fette; Zoltan Farkas; Michael Bading; Bradley Stone; Mark Miner; Oliver Stickroth; Nakul Bagewadi; Memo Romero; Birol Sonuparlak; Rainer Eichholz; Michael Ziegler; Edgar Pawlowski
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Paper Abstract

SST is developing a new Dish CPV dense array system that overcomes the flux uniformity requirement of previous designs. The ability to operate without flux uniformity relaxes the precision requirements of primary collector optics and eliminates homogenizing optics previously required for dense array CPV. Array design can be configured for dish and tower/heliostat systems developed for thermal CSP applications. The design uses industry standard CPV cells and manufacturing materials and methods for minimum cost and high reliability. Nominal input flux to the array for full power is about 250 suns. Internal array optics increase flux to the cells to about 1200 suns. Linear optics provide additional concentration, permit novel use of commercial glass production methods and facilitate power collection design that is integrated with dynamic power conversion and maximum power point tracking (MPPT). Efficient power hybrid packaging methods are used along with advanced liquid cooling “cold-plate” thermal management. Byproduct “waste heat” can be provided for on-site CHP use. We report on the design approach and status of development with the beginning of on-sun alpha testing of the first of 50 kW of CPV modules being produced.

Paper Details

Date Published: 10 October 2012
PDF: 14 pages
Proc. SPIE 8468, High and Low Concentrator Systems for Solar Electric Applications VII, 84680I (10 October 2012); doi: 10.1117/12.930054
Show Author Affiliations
Herb Hayden, Southwest Solar Technologies, Inc. (United States)
Paul Thomas, Southwest Solar Technologies, Inc. (United States)
Nicholas Fette, Southwest Solar Technologies, Inc. (United States)
Zoltan Farkas, Southwest Solar Technologies, Inc. (United States)
Michael Bading, Southwest Solar Technologies, Inc. (United States)
Bradley Stone, Southwest Solar Technologies, Inc. (United States)
Mark Miner, Southwest Solar Technologies, Inc. (United States)
Oliver Stickroth, Southwest Solar Technologies, Inc. (United States)
Nakul Bagewadi, Southwest Solar Technologies, Inc. (United States)
Memo Romero, MaxQ Technology, LLC (United States)
Birol Sonuparlak, MaxQ Technology, LLC (United States)
Rainer Eichholz, Schott AG (Germany)
Michael Ziegler, Schott AG (Germany)
Edgar Pawlowski, Schott AG (Germany)


Published in SPIE Proceedings Vol. 8468:
High and Low Concentrator Systems for Solar Electric Applications VII
Kaitlyn VanSant; Adam P. Plesniak, Editor(s)

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