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Biomass for heat or as transportation fuel? - a comparison between two model based studies

Grahn, Maria, 1963 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Azar, Christian, 1969 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Lindgren, Kristian, 1960 (author)
Chalmers tekniska högskola,Chalmers University of Technology
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Berndes, Göran, 1966 (author)
Chalmers tekniska högskola,Chalmers University of Technology
Gielen, Dolf (author)
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 (creator_code:org_t)
2007
2007
English.
In: Biomass & Bioenergy. ; 31, s. 747-758
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • In two different energy economy models of the global energy system, the cost-effective use of biomass under a stringent carbon constraint has been analyzed. Gielen et al. conclude that it is cost-effective to use biofuels for transportation, whereas Azar et al. find that it is more cost-effective to use most of the biomass to generate heat and process heat, despite the fact that assumptions about the cost of biofuels production is similar in the models. In this study, we compare the two models with the purpose of finding an explanation for these different results. It was found that both models suggest that biomass is most cost-effectively used for heat production for low carbon taxes (below 50–100 USD/tC, depending on the year in question). But for higher carbon taxes, the cost-effective choice reverses in the BEAP model, but not in the GET model. The reason for this is that GET includes hydrogen from carbon-free energy sources as a technology option, whereas that option is not allowed in the BEAP model. In all other sectors, both models include carbon-free options above biomass. Thus, with higher carbon taxes, biomass will eventually become the cost-effective choice in the transportation sector in BEAP, regardless of its technology cost parameters.

Subject headings

NATURVETENSKAP  -- Matematik -- Beräkningsmatematik (hsv//swe)
NATURAL SCIENCES  -- Mathematics -- Computational Mathematics (hsv//eng)
NATURVETENSKAP  -- Fysik -- Annan fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Other Physics Topics (hsv//eng)
SAMHÄLLSVETENSKAP  -- Annan samhällsvetenskap -- Övrig annan samhällsvetenskap (hsv//swe)
SOCIAL SCIENCES  -- Other Social Sciences -- Other Social Sciences not elsewhere specified (hsv//eng)

Keyword

Carbon tax
Biomass
Energy scenarios
Energy system model
Liquid biofuels
Carbon dioxide emissions
Alternative transportation fuels
Hydrogen

Publication and Content Type

art (subject category)
ref (subject category)

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