Near-optimal solutions for carbon capture, conversion, storage, and removal strategies
炭素回収、変換、貯蔵、および除去戦略のための準最適解 (AI 翻訳)
Sina Kalweit, Ricardo Fernandes, Alberto Alamia, Marta Victoria
🤖 gxceed AI 要約
日本語
本研究は、欧州エネルギーシステムモデル（PyPSA-Eur）に植林、バイオ炭、風化促進、多年生作物導入を統合し、炭素管理の準最適解を探求。コスト5%増で多様なCDR・合成燃料構成が可能であることを示した。
English
This paper integrates afforestation, biochar, enhanced rock weathering, and perennialization into a European energy system model (PyPSA-Eur) and uses a Modeling to Generate Alternatives approach to explore near-optimal carbon management strategies. It finds that a 5% cost increase accommodates a wide range of CDR and synthetic fuel configurations, with no clear cost advantage of heavy CDR reliance over synthetic fuels.
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
欧州を対象とするが、日本のカーボンニュートラル戦略（CCUS・CDR・合成燃料）にも示唆を与える。準最適解の分析手法は、日本政府や企業の複数シナリオ検討に応用可能。
In the global GX context
This paper advances global carbon management scholarship by exploring near-optimal solutions, demonstrating system flexibility. It is relevant to ISSB/TCFD discussions on scenario analysis and transition planning, as it highlights that multiple portfolios can achieve net-zero at similar costs.
👥 読者別の含意
🔬研究者:Demonstrates value of near-optimal solution space exploration in energy system modeling, offering a framework for robust carbon management under uncertainty.
🏢実務担当者:Corporate sustainability teams can note that a modest cost increase allows flexibility in CDR and synthetic fuel choices, reducing risk of technology lock-in.
🏛政策担当者:Policymakers can use these findings to design flexible decarbonization pathways that avoid premature commitment to specific technologies.
📄 Abstract（原文）
Abstract Achieving climate neutrality in Europe requires rapid electrification alongside carbon management strategies for residual emissions. Existing analyses of the European energy system often focus on collocated carbon capture and geological sequestration, with limited attention to the interactions among carbon capture and utilization, transport, sequestration, and diverse carbon dioxide removal (CDR) options. Moreover, existing literature focuses on discussing the optimal, neglecting that near-optimal solutions might provide very different system configurations at a marginal higher cost. Here, we integrate afforestation, biochar, enhanced rock weathering, and perennialization into a sector-coupled European energy system model (PyPSA-Eur) clustered to 39 nodes with 750 aggregated time steps. We explore their contributions using a Modelling to Generate Alternatives (MGA) approach. Our method combines minimization, maximization, and random vectors to explore the near-optimal solution space. Our results show that, in a carbon-neutral system, multiple configurations of carbon management options can achieve net-zero emissions with only marginal cost increases. We find that a 5% total system cost increase is sufficient to accommodate the full spectrum from zero to full deployment of most individual CDR options, as well as a wide range of synthetic fuel use across different fuel types. Increased reliance on CDR options offers no clear cost advantage compared to greater utilization of synthetic fuels.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1088/1748-9326/ae7a91first seen 2026-06-11 05:27:32
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