State-of-the-art low-cost solar reflector materials

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Solar thermal technologies generate power by concentrating sunlight with large mirrors. The National Renewable Energy Laboratory (NREL) is working with industrial partners to develop the optical reflector materials needed for the successful deployment of this technology. The reflector materials must be low in cost and maintain high specular reflectance for extended lifetimes in severe outdoor environments. Currently, the best candidate materials for solar mirrors are silver-coated low-iron glass and silvered polymer films. Polymer reflectors are lighter in weight, offer greater flexibility in system design, and have the potential for lower cost than glass mirrors. In parallel with collaborative activities, several ... continued below

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14 p.

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Kennedy, C & Jorgensen, G November 1, 1994.

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Description

Solar thermal technologies generate power by concentrating sunlight with large mirrors. The National Renewable Energy Laboratory (NREL) is working with industrial partners to develop the optical reflector materials needed for the successful deployment of this technology. The reflector materials must be low in cost and maintain high specular reflectance for extended lifetimes in severe outdoor environments. Currently, the best candidate materials for solar mirrors are silver-coated low-iron glass and silvered polymer films. Polymer reflectors are lighter in weight, offer greater flexibility in system design, and have the potential for lower cost than glass mirrors. In parallel with collaborative activities, several innovative candidate reflector-material constructions were investigated at NREL. The low-cost material requirement necessitates manufacturing compatible with mass-production techniques. Future cooperative efforts with the web-coating industry offers the promise of exciting new alternative materials and the potential for dramatic cost savings in developing advanced solar reflector materials.

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14 p.

Notes

OSTI as DE95000260

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  • 8. international vacuum web coating conference, Las Vegas, NV (United States), 6-8 Nov 1994

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  • Other: DE95000260
  • Report No.: NREL/TP--471-7022
  • Report No.: CONF-9411174--1
  • Grant Number: AC36-83CH10093
  • Office of Scientific & Technical Information Report Number: 36591
  • Archival Resource Key: ark:/67531/metadc680322

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • November 1, 1994

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  • July 25, 2015, 2:20 a.m.

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  • March 31, 2016, 8:32 p.m.

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Kennedy, C & Jorgensen, G. State-of-the-art low-cost solar reflector materials, article, November 1, 1994; Golden, Colorado. (digital.library.unt.edu/ark:/67531/metadc680322/: accessed April 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.