Heliostat Cost Reduction

Author:

Kolb Gregory J.1,Davenport Roger2,Gorman David3,Lumia Ron4,Thomas Robert5,Donnelly Matthew1

Affiliation:

1. Sandia National Laboratories, Albuquerque, NM

2. Science Applications Inc., San Diego, CA

3. Advanced Thermal Systems, Larkspur, CO

4. INControl, Albuquerque, NM

5. Advanced Thermal Systems, Centennial, CO

Abstract

Power towers are capable of producing solar-generated electricity and hydrogen on a large scale. Heliostats are the most important cost element of a solar power tower plant. Since they constitute ∼50% to the capital cost of the plant it is important to reduce the cost of heliostats to as low as possible to improve the economic viability of power towers. In this study we evaluate current heliostat technology and estimate a price of $126/m2 given year 2006 materials and labor costs. We also propose R&D that should ultimately lead to a price of less than $100/m2. Approximately 30 heliostat and manufacturing experts from the USA, Europe, and Australia contributed to the content of this report during 2 workshops conducted at the National Solar Thermal Test Facility.

Publisher

ASMEDC

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