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Opt Express. 2011 May 9;19 Suppl 3:A207-18. doi: 10.1364/OE.19.00A207.

Tracking integration in concentrating photovoltaics using laterally moving optics.

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  • 1Brussels Photonics Team, Department of Applied Physics and Photonics, TONA-FirW, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels, Belgium.


In this work the concept of tracking-integrated concentrating photovoltaics is studied and its capabilities are quantitatively analyzed. The design strategy desists from ideal concentration performance to reduce the external mechanical solar tracking effort in favor of a compact installation, possibly resulting in lower overall cost. The proposed optical design is based on an extended Simultaneous Multiple Surface (SMS) algorithm and uses two laterally moving plano-convex lenses to achieve high concentration over a wide angular range of ±24°. It achieves 500× concentration, outperforming its conventional concentrating photovoltaic counterparts on a polar aligned single axis tracker.

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