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Title: Wide-angle planar microtracking for quasi-static microcell concentrating photovoltaics

Abstract

Concentrating photovoltaics offer a way to lower the cost of solar power. However, the existing paradigm based on precise orientation of large-area concentrator modules towards the Sun limits their deployment to large, open land areas. Here, we explore an alternate approach using high-efficiency microcell photovoltaics embedded between a pair of plastic lenslet arrays to demonstrate quasi-static concentrating photovoltaic panels <1 cm thick that accomplish full-day tracking with >200x flux concentration ratio through small (<1 cm) lateral translation at fixed latitude tilt. Per unit of installed land area, cosine projection loss for fixed microtracking concentrating photovoltaic panels is ultimately offset by improved ground coverage relative to their conventional dual-axis counterparts, enabling a ~1.9x increase in daily energy output that may open up a new opportunity for compact, high-efficiency concentrating photovoltaics to be installed on rooftops and other limited-space urban environments.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Light-Material Interactions in Energy Conversion (LMI)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1387265
DOE Contract Number:  
SC0001293
Resource Type:
Journal Article
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 6; Journal Issue: 1; Related Information: LMI partners with California Institute of Technology (lead); Harvard University; University of Illinois, Urbana-Champaign; Lawrence Berkeley National Laboratory; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; solar (photovoltaic), solid state lighting, phonons, thermal conductivity, electrodes - solar, materials and chemistry by design, optics, synthesis (novel materials), synthesis (self-assembly)

Citation Formats

Price, Jared S., Sheng, Xing, Meulblok, Bram M., Rogers, John A., and Giebink, Noel C. Wide-angle planar microtracking for quasi-static microcell concentrating photovoltaics. United States: N. p., 2015. Web. doi:10.1038/ncomms7223.
Price, Jared S., Sheng, Xing, Meulblok, Bram M., Rogers, John A., & Giebink, Noel C. Wide-angle planar microtracking for quasi-static microcell concentrating photovoltaics. United States. doi:10.1038/ncomms7223.
Price, Jared S., Sheng, Xing, Meulblok, Bram M., Rogers, John A., and Giebink, Noel C. Thu . "Wide-angle planar microtracking for quasi-static microcell concentrating photovoltaics". United States. doi:10.1038/ncomms7223.
@article{osti_1387265,
title = {Wide-angle planar microtracking for quasi-static microcell concentrating photovoltaics},
author = {Price, Jared S. and Sheng, Xing and Meulblok, Bram M. and Rogers, John A. and Giebink, Noel C.},
abstractNote = {Concentrating photovoltaics offer a way to lower the cost of solar power. However, the existing paradigm based on precise orientation of large-area concentrator modules towards the Sun limits their deployment to large, open land areas. Here, we explore an alternate approach using high-efficiency microcell photovoltaics embedded between a pair of plastic lenslet arrays to demonstrate quasi-static concentrating photovoltaic panels <1 cm thick that accomplish full-day tracking with >200x flux concentration ratio through small (<1 cm) lateral translation at fixed latitude tilt. Per unit of installed land area, cosine projection loss for fixed microtracking concentrating photovoltaic panels is ultimately offset by improved ground coverage relative to their conventional dual-axis counterparts, enabling a ~1.9x increase in daily energy output that may open up a new opportunity for compact, high-efficiency concentrating photovoltaics to be installed on rooftops and other limited-space urban environments.},
doi = {10.1038/ncomms7223},
journal = {Nature Communications},
issn = {2041-1723},
number = 1,
volume = 6,
place = {United States},
year = {2015},
month = {2}
}

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