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Navigating maritime transition pathways and energy infrastructure towards net zero

ネットゼロ達成に向けた海運の転換経路とエネルギーインフラの計画 (AI 翻訳)

Fristed F, Bramstoft R, Kramel D, Langer L, Strømman A, Münster M

Research Squareプレプリント2026-05-04#エネルギー転換Origin: Global
DOI: 10.21203/rs.3.rs-9448867/v1
原典: https://doi.org/10.21203/rs.3.rs-9448867/v1

🤖 gxceed AI 要約

日本語

本研究は、船舶の更新、港での燃料需要、エネルギーインフラを統合した空間詳細モデルを開発。経済全体のネットゼロ目標だけでは海運の脱炭素化は保証されず、海運固有の制約のもとで再生可能燃料が導入され、その際に電力・水素インフラの構築が変化することを示す。持続可能な海運転換には、セクター横断の協調計画が不可欠。

English

This study develops a spatially detailed energy system model integrating shipping fleet turnover, port-level fuel demand, and infrastructure investment. It shows that economy-wide net-zero targets do not guarantee fossil-free shipping; renewable fuels only emerge under shipping-specific net-zero constraints. Coordination across shipping, fuel supply, and energy infrastructure is critical for a sustainable maritime transition.

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

日本は海運大国であり、GX政策の中で海運の脱炭素化は重要課題。本論文は、船舶・燃料・インフラの統合的な計画の必要性を定量的に示しており、日本のGX実践に直接的な示唆を与える。

In the global GX context

Shipping is a hard-to-abate sector globally, and this paper provides quantitative evidence for sector-specific net-zero targets. The integrated model linking shipping to energy infrastructure offers insights relevant to transition planning under ISSB and CSRD frameworks.

👥 読者別の含意

🔬研究者:Provides a novel integrated modeling framework for maritime decarbonization with spatial detail on fuel demand and infrastructure.

🏢実務担当者:Helps shipping companies and fuel suppliers understand infrastructure dependencies and investment needs for renewable fuel adoption.

🏛政策担当者:Informs policy design for shipping-specific net-zero targets and cross-sector coordination between maritime and energy systems.

📄 Abstract（原文）

<title>Abstract</title> <p>Reducing emissions from shipping is a global climate challenge, and guiding policy frameworks are currently under negotiation. Decarbonising the sector entails large, irreversible investments that interact directly with the broader energy system. Long vessel lifetimes and constrained fuel supply chains risk locking in decisions made today, creating an urgent need for coordinated planning across sectors. In this study, we develop a spatially detailed energy system model integrating shipping fleet turnover, port‑level fuel demand and infrastructure investment to capture interactions between shipping and the energy system. We show that economy‑wide net‑zero targets do not guarantee fossil‑free shipping, as mitigation can shift to other sectors. Renewable fuels replace fossil fuels only under shipping‑specific net‑zero constraints and without onboard carbon capture, and their emergence systematically reshapes the build‑out of electricity and hydrogen infrastructure. Our results show that coordination across shipping, fuel supply and energy infrastructure is required for a sustainable maritime transition.</p>

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gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。