Combination of Equilibrium Models and Hybrid Life Cycle – Input-Output Analysis to Predict the Environmental Impacts of Energy Policy Scenarios

Applied Energy, Vol. 145, pp. 234–245, May 2015

FEEM Working Paper No. 062.2015

Posted: 30 Jun 2015

See all articles by Elorri Igos

Elorri Igos

Luxembourg Institute of Science and Technology (LIST)

Benedetto Rugani

Luxembourg Institute of Science and Technology (LIST) - Environmental Research & Innovation (ERIN)

Sameer Rege

Luxembourg Institute of Science and Technology (LIST)

Enrico Benetto

Luxembourg Institute of Science and Technology (LIST)

Laurent Drouet

Fondazione Eni Enrico Mattei (FEEM)

Dan Zachary

Luxembourg Institute of Science and Technology (LIST)

Date Written: June 30, 2015

Abstract

Nowadays, many countries adopt an active agenda to mitigate the impact of greenhouse gas emissions by moving towards less polluting energy generation technologies. The environmental costs, directly or indirectly generated to achieve such a challenging objective, remain however largely underexplored. Until now, research has focused either on pure economic approaches such as computable general equilibrium (CGE) and partial equilibrium (PE) models, or on (physical) energy supply scenarios. These latter could be used to evaluate the environmental impacts of various energy saving or cleaner technologies via life cycle assessment (LCA) methodology. These modelling efforts have, however, been pursued in isolation, without exploring the possible complementarities and synergies. In this study, we have undertaken a practical combination of these approaches into a common framework: on the one hand, by coupling a CGE with a PE model, and, on the other hand, by linking the outcomes from the coupling with a hybrid input-output-process based life cycle inventory. The methodological framework aimed at assessing the environmental consequences of two energy policy scenarios in Luxembourg between 2010 and 2025.

The study highlights the potential of coupling CGE and PE models but related methodological difficulties (e.g. small number of available technologies in Luxembourg, intrinsic limitations of the two approaches, etc.). The assessment shows both environmental synergies and trade-offs due to the implementation of energy policies. For example, despite the changes in technologies towards the reduction of greenhouse gas emissions, only marginal improvements are observed in the climate change mitigation scenario as compared to the business-as-usual. The energy related production and imports are indeed expected to increase over time and represent a large contribution to the country’s impacts. Interestingly, side effects on other impacts than climate change or fossil resource depletion (e.g. ionising radiation and water depletion) may also occur mainly due to the use of nuclear energy in neighbouring countries.

Keywords: Computable General Equilibrium Model, Partial Equilibrium Model, Energy Policy Life Cycle Assessment, Consequential, Input-Output

JEL Classification: Q40, C67, C68

Suggested Citation

Igos, Elorri and Rugani, Benedetto and Rege, Sameer and Benetto, Enrico and Drouet, Laurent and Zachary, Dan, Combination of Equilibrium Models and Hybrid Life Cycle – Input-Output Analysis to Predict the Environmental Impacts of Energy Policy Scenarios (June 30, 2015). Applied Energy, Vol. 145, pp. 234–245, May 2015; FEEM Working Paper No. 062.2015. Available at SSRN: https://ssrn.com/abstract=2624939 or http://dx.doi.org/10.2139/ssrn.2624939

Elorri Igos

Luxembourg Institute of Science and Technology (LIST) ( email )

29, avenue John F.Kennedy
Luxembourg, L-1855
Luxembourg

Benedetto Rugani (Contact Author)

Luxembourg Institute of Science and Technology (LIST) - Environmental Research & Innovation (ERIN) ( email )

41 Rue du Brill
Belvaux, 4422
Luxembourg

Sameer Rege

Luxembourg Institute of Science and Technology (LIST) ( email )

29, avenue John F.Kennedy
Luxembourg, L-1855
Luxembourg

Enrico Benetto

Luxembourg Institute of Science and Technology (LIST) ( email )

29, avenue John F.Kennedy
Luxembourg, L-1855
Luxembourg

Laurent Drouet

Fondazione Eni Enrico Mattei (FEEM) ( email )

C.so Magenta 63
Milano, 20123
Italy

Dan Zachary

Luxembourg Institute of Science and Technology (LIST) ( email )

29, avenue John F.Kennedy
Luxembourg, L-1855
Luxembourg

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