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- name : CIRAIG, Institute for Sustainable Energy, University of Applied Sciences Western Switzerland, Rue de l’Industrie 23, Sion, 1950, Switzerland
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index : 3
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- date : 21 March 2025
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+ date : 24 March 2025
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bibliography : paper.bib
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---
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# Summary
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Energy System Models (ESM) are widely used to design and assess energy transition scenarios. They help decision-makers
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to project their policies and understand their impact on strongly interconnected energy systems. However, ESM typically
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- lack environmental indicators, which are essential to assess the sustainability of energy transition scenarios.
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+ lack a set of comprehensive environmental indicators beyond carbon emissions, which are essential to assess the
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+ sustainability of energy transition scenarios.
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` mescal ` is a Python package that integrates Life-Cycle Assessment (LCA) indicators in ESM. It allows energy modellers
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- to include a wider set of environmental indicators within their models in a transparent and reproducible way.
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- As a result, energy modellers and decision-makers can identify transition scenarios trade-offs and hot spots, thus
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- enabling a more holistic sustainability assessment.
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+ to expand the scope of analysis, encompassing indirect impacts from the infrastructure, and to include a wider set of
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+ environmental indicators in a transparent and reproducible way.
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+ As a result, ` mescal ` enhances the capability of ESM in supporting decision-making by providing a more comprehensive
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+ sustainability assessment, facilitating the identification of environmental hot spots and trade-offs in energy transition
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+ scenarios.
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# Statement of need
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ESM aims to support decision-makers in designing and assessing energy transition scenarios. In this work, we focus on
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assessment of energy transition scenarios. ESM/IAM results can be further included in a prospective LCI database using ` premise `
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custom scenarios [ @sacchi2022 ] , thus making soft-linked coupling possible.
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However, this framework is limited to ex-post analyses and does not allow for the endogenous integration of LCA
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- indicators within ESM or IAM, thus significantly limiting energy modellers' ability to shape transition scenarios
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- with LCA results.
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+ indicators within ESM or IAM, and therefore prevents modellers to perform multi-objective optimization.
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+ This significantly limits energy modellers' ability to shape transition scenarios with LCA results.
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` mescal ` aims to address this limitation, by enhancing the reproducibility and transparency of hard-linked coupling
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- between LCA and ESM, thus allowing a better comparability among energy modellers envisioning to enlarge their set of
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- sustainability metrics.
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+ between LCA and any ESM, thus allowing a better comparability among energy modellers envisioning to expand their set of
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+ sustainability metrics and the scope of the analysis, including indirect emissions and impacts from the infrastructure .
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# Description
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Starting from a mapping between ESM technologies/resources and LCI datasets from a LCI database, ` mescal ` performs
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The use of ` mescal ` ensures a transparent, reproducible, and thus comparable integration of LCA indicators in ESM.
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The use of LCA makes sustainability assessments of energy modellers more holistic, thus highlighting the potential trade-offs,
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benefits, and adverse side effects of energy transition pathways among the environmental and economic performance indicators.
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- ` mescal ` is intended to be used by energy modellers who might not be LCA experts but want to enlarge the set of environmental
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+ ` mescal ` is intended to be used by energy modellers who might not be LCA experts but want to expand the scope of analysis,
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+ encompassing both the indirect emissions from the infrastructure and a comprehensive set of environmental
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indicators in their model in a transparent and reproducible way.
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Updating the LCI database with ESM results paves the way for using ` mescal ` with both snapshot and myopic pathway ESM
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# Conclusion
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` mescal ` makes the integration of LCA indicators in ESM more transparent, reproducible, and comparable.
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- It aims to encourage energy modellers to consider a broader set of environmental indicators in their energy transition
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+ It aims to encourage energy modellers to consider the full life-cycle inventory of the energy system (infrastructure,
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+ operation, end-of-life, etc.) and a broader set of environmental indicators in their energy transition
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scenarios, thus enabling a more holistic sustainability assessment.
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# Acknowledgements
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