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Electricity from wood-fired gasification in Uganda - A 250 and 10kW case study
KTH, School of Industrial Engineering and Management (ITM), Industrial Ecology.
2012 (English)In: Proceedings of the 20th Conference on the Domestic Use of Energy, DUE 2012, 2012, 65-76 p.Conference paper, Published paper (Refereed)
Abstract [en]

Wood gasification systems have the potential to contribute to the rural electrification in Sub-Saharan Africa. This paper presents an operational and economic analysis of two wood-based gasification systems (250 and 10 kW) installed in Uganda in 2007. Both systems proved their potential to compete economically with diesel generated electricity when operating close to the rated capacity. At an output of 150 kW running for ∼12 h/day and 8 kW running for ∼8h/day, the systems produced electricity at US$ 0.18 and 0.34/kWh, respectively. A stable electricity demand close to the rated capacity proved to be a challenge for both systems. Fuelwood costs accounted for ∼US$0.03/kWh for both systems. Recovery of even a small fraction of the excess heat (22%) already resulted in substantial profitability gains for the 250 kW system. Results indicate that replicating successful wood gasification systems stipulates integration of sustainable fuelwood supply and viable business models.

Place, publisher, year, edition, pages
2012. 65-76 p.
Keyword [en]
economic and operational analysis, Small-scale gasification, sustainable fuelwood supply
National Category
Energy Systems
Identifiers
URN: urn:nbn:se:kth:diva-100351Scopus ID: 2-s2.0-84861423923ISBN: 978-098143117-8 (print)OAI: oai:DiVA.org:kth-100351DiVA: diva2:543351
Conference
20th International Conference on the Domestic Use of Energy, DUE 2012; Cape Town; 3 April 2012 through 4 April 2012
Note
QC 20120807Available from: 2012-08-07 Created: 2012-08-07Bibliographically approved

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Citation style
  • apa
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  • ieee
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More styles
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  • fi-FI
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  • nn-NB
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  • Other locale
More languages
Output format
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  • asciidoc
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