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Project Profile: High Performance Reflector Panels for CSP Assemblies

PPG logoPPG, under the CSP R&D FOA, is aiming to develop and commercialize large-area second-surface glass mirrors that are superior in value, cost, and performance, to existing mirrors on the market today.

Approach

Photo of a metal stand with flat square-shaped pieces lined up in three rows.This project aims to develop a design and fabrication process for a mirror having:

  • A high solar weighted specular reflectance
  • Minimal optical performance degradation over the service lifetime
  • A cost to the concentrating solar power (CSP) systems builder less than that of the current market price.

The glass and coating developed under this award has gone through a few production runs for commercial purposes. In terms of lowering cost or improving performance, this award may have only minor impact; however, it may prove beneficial from a domestic manufacturing perspective.

Innovation

This project has the added environmental benefits of a lead-free encapsulant and no wet-silver process wastes. Production of a mirror with the proposed specifications requires that this project deliver:

  • A high transmission glass for the superstrate
  • Optical functional layers that deliver the performance required, an inorganic coating that protects the functional layers from chemical attack
  • An organic coating that protects the functional layers from mechanical attack
  • A cost-effective fabrication process.

Publications, Patents, and Awards

At this time, this project does not have published articles, patents, or awards.

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Quarterly Progress Reports Thumbnail
Quarterly Progress Reports

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CSP Program Overview

Learn about other DOE competitive awards for concentrating solar power research that are in progress.