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Development of the virtual battery concept in the paper industry: Applying a dynamic life cycle assessment approach

紙産業における仮想バッテリー概念の開発:動的ライフサイクルアセスメントの適用 (AI 翻訳)

Stefan Puschnigg, Sophie Knöttner, Johannes Lindorfer, Thomas Kienberger

Sustainable Production and Consumption📚 査読済 / ジャーナル2023-07-17#エネルギー転換Origin: EU経営インパクト: コスト削減対象セクター: paper
DOI: 10.1016/j.spc.2023.07.013
原典: https://doi.org/10.1016/j.spc.2023.07.013

🤖 gxceed AI 要約

日本語

本研究は、紙産業のサイトを仮想バッテリーとしてモデル化し、動的LCAを用いて環境・エネルギー・経済性を評価した。動的LCAにより、静的LCAと比較して電力1MJあたりのGHG排出量が最大42%削減され、紙1トンあたりのGWPも最大33%削減された。一方、総一次エネルギー需要は増加するが、化石由来は減少し再生可能エネルギーの割合が増加。年間コスト削減は最大44%に達し、VBCは再生可能エネルギーの有効活用と系統安定化に有望である。

English

This study models a paper industry site as a virtual battery and evaluates it with dynamic LCA. Compared to static LCA, dynamic LCA reduces GHG emissions per MJ of electricity by up to 42% and GWP per ton of paper by up to 33%. While total primary energy demand increases, fossil PED decreases and renewable PED increases significantly. Annual cost savings reach up to 44%, making VBC promising for renewable energy utilization and grid stability.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本の紙・パルプ産業はエネルギー多消費産業であり、カーボンニュートラル達成に向けて再生可能エネルギーの導入と柔軟な需要調整が課題。本研究成果は、SSBJ開示やサプライチェーン排出量削減に資する具体的な手法を示し、国内産業への適用可能性が高い。

In the global GX context

This paper provides a replicable method for energy-intensive industries to integrate renewables and reduce emissions, aligning with global climate disclosure frameworks like TCFD and ISSB. The dynamic LCA approach offers a more accurate assessment of temporal emission profiles, which is valuable for transition finance and corporate sustainability reporting.

👥 読者別の含意

🔬研究者:Dynamic LCA methodology and VBC modeling offer a novel approach for assessing temporal energy and emission impacts in industrial settings.

🏢実務担当者:Provides a framework for paper industry sites to optimize energy flexibility, reduce costs, and lower carbon footprint, supporting disclosure and sustainability goals.

🏛政策担当者:Demonstrates potential for industrial demand-side flexibility to support renewable integration and grid stability, informing energy policy and infrastructure planning.

📄 Abstract(原文)

Energy-intensive industries face the challenge of reducing carbon emissions while remaining competitive. Key measures include fossil fuel substitution, energy efficiency, and integration of renewable energy sources, but their fluctuating production profile makes them difficult to integrate and require industries to adapt their current consumption and production patterns to become more flexible. In this study, the virtual battery concept (VBC), exemplarily demonstrated for a specific site in the paper industry, is introduced and evaluated from an environmental, energetic, and techno-economic perspective. A mathematical optimization model of the class mixed integer linear programming (MILP) was applied to express the industrial site as VBC and derive the operational data basis for the subsequent life cycle assessment (LCA). A dynamic LCA approach is presented to allow the consideration and assessment of the temporal behavior of energy load profiles and their associated environmental implications. The results showed that compared to a static LCA, the dynamic approach leads up to 42 % lower greenhouse gas (GHG) emissions for 1 MJ of public electricity. The global warming potential (GWP) of the total energy supply chain was reduced by 40 % for electricity and 8 % for heat, respectively. By means of a scenario analysis, the GWP to produce one ton of paper was reduced up to 33 % compared to the business-as-usual (BAU) case to 672 kgCO2eq./tpaper in the best case. However, the total primary energy demand (PED) increased by 34 %, but the fossil PED was reduced by 32 % and the renewable PED increased by 157 %. The renewable PED share covered up to 67 % of the total PED. The techno-economic analysis revealed total annual cost savings of up to 44 % to 64.6 €/tpaper. Environmental costs were estimated to range from 79.6 to 88.9 €/tpaper. The VBC is considered a promising approach to utilize regional renewable excess electricity effectively, reduce fossil-based energy generation, increase grid stability, and to avoid costly grid infrastructure investments in future. In principle, the VBC is site-independent and replicable to other industries but needs to be evaluated site specifically according to certain process characteristics and requirements.

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