Supplying low-carbon electro-fuels and electro-chemicals: A life cycle assessment considering technological, geospatial, and temporal heterogeneities
低炭素電気燃料と電気化学製品の供給：技術的、地理空間的、時間的不均一性を考慮したライフサイクル評価 (AI 翻訳)
Sylvanus Lilonfe, Carlos A. Jimenez Cortes, Madeleine Mitschler, Victor Gordillo Zavaleta, Amir F.N. Abdul-Manan, Ioanna Dimitriou, Jon McKechnie
🤖 gxceed AI 要約
日本語
本論文は、輸送や製造などの脱炭素が困難なセクター向けに、低炭素液体電気燃料と電気化学製品の1万以上の生産構成・サプライチェーン・技術シナリオをモデル化。GHG排出量、エネルギー効率、水使用量のトレードオフを評価し、インフラからの内包排出や集中/分散型生産戦略を考慮した場合の影響も分析。再生可能電力由来の電気燃料のライフサイクルGHG排出量は2025年で1～21 gCO2e/MJ、2050年で1～10 gCO2e/MJと推定され、EU・英国の規制値を満たす。
English
This study models over 10,000 configurations of low-carbon liquid electro-fuels and chemicals production, assessing trade-offs in life-cycle GHG emissions, energy efficiency, and water use. It accounts for embodied emissions from infrastructure and centralised vs decentralised supply chains. Results show lifecycle GHG emissions of 1–21 gCO2e/MJ in 2025 (reducing to 1–10 gCO2e/MJ by 2050) for fully renewable-powered electro-fuels, meeting EU/UK regulatory limits. The work highlights that centralised production minimises H2 leakage, while decentralised approaches reduce energy consumption by integrating with distributed CO2 sources.
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
日本は運輸・製造業の脱炭素に向けて電気燃料（e-fuel）戦略を推進中。本論文のライフサイクル評価は、日本企業がサプライチェーン全体のGHG排出量を把握し、SSBJや有報での開示に活用可能。また、集中型・分散型生産の比較は日本の地域分散型エネルギーシステムへの示唆を含む。
In the global GX context
This comprehensive LCA of electro-fuels provides critical benchmarks for global decarbonization of hard-to-abate sectors, especially relevant to TCFD/ISSB-aligned disclosure of Scope 3 emissions. The comparison of centralised vs decentralised production and inclusion of infrastructure emissions offers actionable insights for corporate climate strategies and transition finance decisions. The regulatory alignment with EU/UK limits makes it directly applicable to global climate policy frameworks.
👥 読者別の含意
🔬研究者:Provides a robust LCA methodology with combinatorial modeling of production configurations, useful for further research on synthetic fuels and supply chain optimization.
🏢実務担当者:Offers quantitative guidance on choosing production strategies (centralised vs decentralised) to minimize GHG emissions and water use for electro-fuel projects.
🏛政策担当者:Demonstrates that fully renewable electro-fuels can meet EU/UK transport fuel regulations, supporting policy development for e-fuel mandates and carbon pricing.
📄 Abstract（原文）
Low-carbon liquid electro-fuels and electro-chemicals have emerged as important enabler for decarbonising the hard-to-abate sectors like transport and manufacturing industries. Here, we report the modelling of more than 10,000 liquid electro-fuels and electro-chemicals production configurations, supply chains, and technology development scenarios, to assess the trade-offs in life cycle greenhouse gas emissions, energy efficiencies, and water use. We explore approaches to quantify and minimise the emissions impact throughout the value chain, including accounting for embodied emissions from infrastructure and national and international supply chains, as well as the use of centralised and decentralised production strategies. The total loss of H 2 , energy requirements and water use in liquid electro-fuel supply chains typically ranged from 0.2–2.6% H 2 per kg fuel, 1.9–4.0 MJ per MJ fuel, and 0.016–0.118 L H 2 O per MJ fuel delivered, respectively. The life cycle greenhouse gas emissions (excluding embodied infrastructure emissions) of liquid electro-fuels, fully derived using renewable power, typically ranged from 1–21 gCO 2 e per MJ [0.02–0.92 kgCO 2 e/kg] in 2025, which could reduce to 1–10 gCO 2 e per MJ [0.02–0.43 kgCO 2 e/kg] in 2050, are generally within the EU and UK regulatory limits for transport fuels. Centralised production approaches minimise H 2 leakages in the supply chain and leverage the benefits of transporting energy-dense liquid fuels, while decentralised approaches could reduce energy consumption given that they could be integrated relatively easily with the distributed CO 2 sources. Accounting for embodied emissions from infrastructure can significantly increase overall greenhouse gas emissions, though they are generally still within regulatory limits for transport applications. Furthermore, other low-carbon electricity sources, such as nuclear power, hydro power, and certain combinations of grid and renewable electricity, can be used to achieve greenhouse gas emissions in line with regulatory limits, as long as the grid electricity is sufficiently decarbonised.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.ijhydene.2026.156430first seen 2026-07-13 05:50:40
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