天然ガス火力発電所のバイオエネルギーCCS転換の時間分解コスト分析：ネットゼロ排出達成に向けて
Time-Resolved Cost Analysis of Natural Gas Power Plant Conversion to Bioenergy with Carbon Capture and Storage to Support Net-Zero Emissions (原題)
Sproul, Evan, Barlow, Jay, Quinn, Jason C.
🤖 gxceed AI 要約
日本語
既存の天然ガス複合発電所をバイオメタンBECCSに転換するための排出価格と技術コストを評価。現在の技術コストでは、通常運転と競合するにはCO2換算排出価格142ドル、停止と競合するには215ドルが必要。中程度の排出価格（25〜105ドル）では、資本コスト目標はkWあたり1434〜2098ドル、運用コストはMWhあたり32〜51ドル。燃料コスト削減の重要性を指摘。
English
This study evaluates the emission pricing and technology costs required to convert an existing NGCC power plant to biomethane-based BECCS. At current costs, CO2-equivalent prices of $142 and $215 per metric ton are needed to compete with normal operation or shutdown, respectively. With mid-range pricing ($25-$105), capital cost targets are $1434-$2098 per kW and operational costs $32-$51 per MWh. Findings highlight the need for significant cost reductions in fuel production and consumption.
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
日本では、既存の火力発電所の転換はカーボンニュートラル達成の重要な選択肢。本研究成果は、CCS導入のコスト評価や排出価格設定の政策検討に示唆を与える。SSBJ開示や移行計画策定にも関連。
In the global GX context
This paper provides quantitative evidence on BECCS conversion costs and required carbon prices, informing global climate policy and corporate transition planning. It aligns with ISSB and CSRD disclosure needs by offering transparent, open-source data for assessing decarbonization pathways.
👥 読者別の含意
🔬研究者:Provides a transparent, open-source techno-economic model for BECCS conversion, useful for further research on negative emissions technologies.
🏢実務担当者:Offers cost benchmarks and emission price thresholds to evaluate BECCS conversion feasibility for existing gas plants.
🏛政策担当者:Informs carbon pricing and technology support policies needed to make BECCS viable.
📄 Abstract（原文）
Abstract The ongoing construction of natural gas combined cycle (NGCC) power plants is incompatible with a transition to global net-zero greenhouse gas emissions. This work evaluates the emission pricing and technology costs required to convert an existing NGCC power plant to a biomethane-based bioenergy with carbon capture and storage (BECCS) system. The conversion was evaluated using techno-economic analysis and time-resolved life cycle assessment. At current technology costs, carbon dioxide equivalent emission prices of $142 and $215 per metric ton are required to allow a BECCS conversion to compete with normal operation or shutdown, respectively, of an existing NGCC power plant. These results show further technological development must occur in parallel with emission pricing to make BECCS viable. If mid-range emission pricing estimates are implemented ($25–$105 per metric ton), BECCS capital cost targets range from $1434 to $2098 per kW of capacity, while operational costs range from $32 to $51 per MWh of electricity produced to enable conversion. These findings indicate that operational costs associated with fuel consumption and production must be significantly reduced to make a BECCS conversion viable, even with emission pricing. All data and methods of this work have been made publicly available in an open-source model.
🔗 Provenance — このレコードを発見したソース
- base https://doi.org/10.1021/acs.est.0c04041first seen 2026-09-01 12:03:55
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