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Cost-effective use of biomass - A comparison between two model based studies

Maria Grahn (Institutionen för energi och miljö, Fysisk resursteori) ; Christian Azar (Institutionen för energi och miljö, Fysisk resursteori) ; Kristian Lindgren (Institutionen för energi och miljö, Fysisk resursteori) ; Göran Berndes (Institutionen för energi och miljö, Fysisk resursteori) ; Dolf Gielen
Book of Proceedings, RIO6, World Climate and Energy Event, Nov 17-18, 2006, Hotel Othon Palace, Rio de Janeiro, Brazil p. 149-153. (2006)
[Konferensbidrag, övrigt]

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 rather similar in the models. In this study, we compare the two models with the purpose to find an explanation for these different results. It is 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 that 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.

Nyckelord: global energy systems modeling, CO2 emission reduction, bio-energy, biofuels

Denna post skapades 2006-12-20. Senast ändrad 2017-09-14.
CPL Pubid: 24453


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Institutioner (Chalmers)

Institutionen för energi och miljö, Fysisk resursteori (2005-2017)


Optimeringslära, systemteori
Teknik och social förändring

Chalmers infrastruktur