The trade-off between bioenergy and emissions with land constraints

Nathan Kauffman and Dermot Hayes

Energy Policy, 2013, vol. 54, issue C, 300-310

Abstract: Agricultural biofuels require the use of scarce land, and this land has opportunity cost. We explore the objective function of a social planner who includes a land constraint in the optimization decision to minimize environmental cost. The inclusion of this land constraint in our optimization model motivates the measurement of emissions on a per-hectare basis. Switchgrass and corn are modeled as competing alternatives to show how the inclusion of a land constraint can influence life cycle rankings and alter policy conclusions. With land use unconstrained, ethanol produced from switchgrass is always an optimal feedstock relative to ethanol produced from corn. With land use constrained, however, our results show that it is unlikely that switchgrass would be optimal in the midwestern United States, but may be optimal in southern states if carbon is priced relatively high. Whether biofuel policy advocates for one feedstock over another should consider these contrasting results.

Keywords: Biofuels; Land use; Life cycle analysis (search for similar items in EconPapers)
Date: 2013
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Citations: View citations in EconPapers (3)

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Working Paper: The Trade-off Between Bioenergy and Emissions With Land Constraints (2013)
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Persistent link: https://EconPapers.repec.org/RePEc:eee:enepol:v:54:y:2013:i:c:p:300-310

DOI: 10.1016/j.enpol.2012.11.036

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