Low cost photovoltaic roof tile

S. R. Wenham, Stuart Bowden, M. Dickinson, R. Largent, N. Shaw, Christiana Honsberg, M. A. Green, P. Smith

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Static concentrator designs that achieve concentration ratios approaching the theoretical limit have been developed and demonstrated. Concentration ratios in excess of 4:1 have been predicted although this reduces to 3.6:1 for the practical design used for photovoltaic roof tile applications. A new encapsulant based on "solid white oil" has been evaluated for use in the optical cavity, exhibiting excellent optical properties while simultaneously being low cost. Prototype roof tile efficiencies of approximately 15% (not independently confirmed) are well below the expected 17-18%, due primarily to optical losses associated with the rear reflector and poor rear surface performance for the Photovoltaic devices. Good progress has been made recently with regard to the latter, although further work is required to accommodate solar grade substrates with much shorter diffusion lengths, for the bi-facial cells in this application.

Original languageEnglish (US)
Pages (from-to)325-337
Number of pages13
JournalSolar Energy Materials and Solar Cells
Volume47
Issue number1-4
StatePublished - Oct 1997
Externally publishedYes

Fingerprint

Tile
Roofs
Optical losses
Costs
Oils
Optical properties
Substrates

Keywords

  • Concentrater
  • Devices
  • Encapsulation
  • Si

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films

Cite this

Wenham, S. R., Bowden, S., Dickinson, M., Largent, R., Shaw, N., Honsberg, C., ... Smith, P. (1997). Low cost photovoltaic roof tile. Solar Energy Materials and Solar Cells, 47(1-4), 325-337.

Low cost photovoltaic roof tile. / Wenham, S. R.; Bowden, Stuart; Dickinson, M.; Largent, R.; Shaw, N.; Honsberg, Christiana; Green, M. A.; Smith, P.

In: Solar Energy Materials and Solar Cells, Vol. 47, No. 1-4, 10.1997, p. 325-337.

Research output: Contribution to journalArticle

Wenham, SR, Bowden, S, Dickinson, M, Largent, R, Shaw, N, Honsberg, C, Green, MA & Smith, P 1997, 'Low cost photovoltaic roof tile', Solar Energy Materials and Solar Cells, vol. 47, no. 1-4, pp. 325-337.
Wenham SR, Bowden S, Dickinson M, Largent R, Shaw N, Honsberg C et al. Low cost photovoltaic roof tile. Solar Energy Materials and Solar Cells. 1997 Oct;47(1-4):325-337.
Wenham, S. R. ; Bowden, Stuart ; Dickinson, M. ; Largent, R. ; Shaw, N. ; Honsberg, Christiana ; Green, M. A. ; Smith, P. / Low cost photovoltaic roof tile. In: Solar Energy Materials and Solar Cells. 1997 ; Vol. 47, No. 1-4. pp. 325-337.
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