Excess heat from kraft pulp mills: Trade-offs between internal and external use in the case of Sweden--Part 2: Results for future energy market scenarios

Johanna Jönsson, Inger-Lise Svensson, Thore Berntsson and Bahram Moshfegh

Energy Policy, 2008, vol. 36, issue 11, 4186-4197

Abstract: In this paper the trade-off between internal and external use of excess heat from a kraft pulp mill is investigated for four different future energy market scenarios. The work follows the methodology described in Svensson et al. [2008. Excess heat from kraft pulp mills: trade-offs between internal and external use in the case of Sweden--Part 1: methodology. Energy Policy, submitted for publication], where a systematic approach is proposed for investigating the potential for profitable excess heat cooperation. The trade-off is analyzed by economic optimization of an energy system model consisting of a pulp mill and an energy company (ECO). In the model, investments can be made, which increase the system's energy efficiency by utilization of the mill's excess heat, as well as investments that increase the electricity production. The results show that the trade-off depends on energy market prices, the district heating demand and the type of existing heat production. From an economic point of view, external use of the excess heat is preferred for all investigated energy market scenarios if the mill is studied together with an ECO with a small heat load. For the cases with medium or large district heating loads, the optimal use of excess heat varies with the energy market price scenarios. However, from a CO2 emissions perspective, external use is preferred, giving the largest reduction of global emissions in most cases.

Keywords: Kraft; pulp; mill; Industrial; excess; heat; Energy; market; scenarios (search for similar items in EconPapers)
Date: 2008
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Citations: View citations in EconPapers (21)

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