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Title:
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LCA Comparison of the ELKEM Solar metallurgical route and conventional gas routes to solar silicon
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Author(s):
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Wild - Scholten, M.J. de; Glockner, R.; Odden, J-O.; Halvorsen, G.; Tronstad, R.
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Published by:
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Publication date:
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ECN
Solar Energy
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4-2-2008
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ECN report number:
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Document type:
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ECN-M--08-012
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Conference Paper
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Number of pages:
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Full text:
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5
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Download PDF
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Presented at: 23rd European Photovoltaic Solar Energy Conference and Exhibition, Valencia, Spain, 1-5 september 2008.
Abstract:
Preliminary Environmental Life Cycle Assessment of solar grade silicon production via gas- and metallurgical route indicates that environmental impacts can be reduced by:
• making efficient use of the metallurgical silicon,
• installing waste heat recovery systems,
• using a clean source of electricity.
The metallurgical route has the advantage of a lower energy consumption compared to the traditional routes with purification via the gas phase resulting in lower environmental impacts.
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