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海運脱炭素化のためのe-メタノール導入障壁の評価

Assessing barriers to e-methanol adoption for maritime decarbonization (原題)

Javier Escrivá Asensio, Mariel Ribelles Beltrán, Jasmine Siu Lee Lam, Seyed Parsa Parvasi, Claudia González Viguer

Ocean & Coastal Management📚 査読済 / ジャーナル2026-09-03#エネルギー転換Origin: EU経営インパクト: 調達リスク対象セクター: transport
DOI: 10.1016/j.ocecoaman.2026.108343
原典: https://doi.org/10.1016/j.ocecoaman.2026.108343

🤖 gxceed AI 要約

日本語

本研究は、コンテナ海運におけるe-メタノール導入の障壁を、TOPSISを用いた多基準意思決定分析で評価した。経済的障壁（市場ベースのインセンティブ不足、炭素価格、燃料価格の高さ）が最上位を占め、次いで技術的障壁（燃料生産・供給）が続く。政策シグナル、インフラ整備、長期投資の重要性を示唆。

English

This study evaluates barriers to e-methanol adoption in container shipping using TOPSIS-based MCDA. Economic barriers (insufficient market-based incentives, carbon pricing, high fuel price) rank highest, followed by technological barriers in production and supply. Highlights need for clear policy signals, infrastructure, and long-term investment.

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

日本の海運業界は国際海運のGHG削減目標に対応するため、e-メタノール等の代替燃料への関心が高い。本研究成果は、日本における燃料供給インフラや政策支援の検討に示唆を与える。

In the global GX context

As IMO and EU regulations tighten, global shipping faces pressure to adopt low-carbon fuels. This study provides evidence on key barriers, informing policy design and investment decisions for maritime decarbonization.

👥 読者別の含意

🔬研究者:Provides a structured barrier assessment for e-methanol in shipping, useful for further research on alternative fuel adoption.

🏢実務担当者:Shipping companies and fuel suppliers can use findings to prioritize investments and address key barriers.

🏛政策担当者:Highlights the need for market-based incentives and carbon pricing to support e-methanol uptake.

📄 Abstract（原文）

As global efforts to decarbonize maritime transport intensify and the sector seeks credible pathways to deep decarbonization, understanding the barriers hindering alternative fuel adoption has become crucial. This study examines the challenges of implementing e-methanol as a low-carbon renewable marine fuel in container shipping. Using a multi-criteria decision analysis (MCDA) framework based on the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS), 17 barriers were evaluated across economic, technological, social, and environmental dimensions. Assessing these barriers is essential for determining the contribution of e-methanol to the maritime industry's long-term decarbonization strategy. Based on insights from industry experts across the maritime value chain, the results show that the highest-ranked barriers are primarily economic, led by insufficient market-based incentives and carbon pricing, and high fuel price. These are followed by technological barriers associated with fuel production and fuel supply. The findings highlight the importance of clear policy signals, coordinated infrastructure development, and long-term investment strategies to unlock e-methanol's potential. Overall, the study provides valuable insights for policymakers and industry stakeholders to accelerate the maritime sector's transition toward sustainable, low-emission fuels and broader decarbonization objectives.

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