Kiel Working Papers, Kiel Institute for World Economics
No 1653:
Analysing Bioenergy and Land Use Competition in a Coupled Modelling System: The Role of Bioenergy in Renewable Energy Policy in Germany
Ruth Delzeit, Horst Gömann, Karin Holm-Müller, Peter Kreins, Bettina Kretschmer, Julia Münch and Sonja Peterson
Abstract: In the context of energy security and climate protection,
biomass is given high importance. Nevertheless, land-use conflicts
resulting from the cultivation of biomass and their economy-wide effects
are yet to be fully understood. To shed light on this issue we link three
distinctive models; a global, multi-regional general equilibrium model
(DART), a regionalised agricultural sector model for Germany (RAUMIS) and a
location model for biogas plants. The DART model allows capturing
international and national feedback effects of an increased use of
bioenergy such as increased agricultural prices. The interaction of DART
and RAUMIS links global markets and connects them to the detailed
specification of agricultural land use in Germany. Finally, we link this
system to the newly developed location model ReSI-M that accounts for the
location choices of biogas plants in Germany and the resulting regional
markets for energy crop demand. As a first application of the modelling
system we analyse the effects of the German Renewable Energy Source Act on
German biogas production and of the EU 10%-biofuel target on German
agriculture and world agricultural prices. A main result of the simulations
is that accounting for existing land-use restrictions and land-use
competition has a significant effect on model results
Keywords: Bioenergy, land use, renewable energy policy, coupled models, agricultural-sector models, CGE; (follow links to similar papers)
JEL-Codes: C61,; C68,; Q15,; Q42,; Q48; (follow links to similar papers)
24 pages, October 2010
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