Techno-economic assessment of the retrofit of a natural gas combined cycle for variable load operations
可変負荷運転向け天然ガスコンバインドサイクル改修の技術経済評価 (AI 翻訳)
Francesca Rita Famà, Umberto Pasqual Laverdura, Giuseppina Vanga, Maria Luisa Grilli
🤖 gxceed AI 要約
日本語
既存の天然ガスコンバインドサイクル発電所にCO2回収システムを後付けする技術経済性を評価。実用的な時間単位のディスパッチデータに基づき可変負荷運転下での性能をシミュレーション。90%のCO2回収率、50%の高効率維持、LCOE 156 €/MWh、CO2回避コスト115 €/tCO2を達成。正味現在価値分析により欧州市場での経済的実現性を確認。
English
This study assesses the techno-economic viability of retrofitting an existing natural gas combined cycle power plant with a post-combustion carbon capture system for variable load operations. Using realistic hourly dispatch data, the retrofitted plant achieves 90% CO2 capture rate with a levelized cost of electricity of €156/MWh and CO2 avoidance cost of €115/tCO2. Net present value analysis confirms economic feasibility under current European market conditions, with improving profitability as carbon prices rise.
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
本論文は欧州の電力市場条件下での天然ガスコンバインドサイクルへのCCS後付けの技術経済性を示す。日本でもLNG火力は重要なベース電源であり、SSBJやGX推進政策の下でCCS導入の検討が進む中、本成果は同様の改修の経済性評価の参考となる。
In the global GX context
This paper provides a robust techno-economic assessment of CCS retrofit on a gas plant under variable renewable penetration, relevant to global efforts to decarbonize fossil fuel assets. The methodology and results offer benchmarks for similar evaluations in other regions, highlighting the role of carbon pricing in investment viability.
👥 読者別の含意
🔬研究者:Take the methodology for modeling variable-load CCS performance and the integrated techno-economic framework.
🏢実務担当者:The cost data (156 €/MWh LCOE, 115 €/tCO2 avoided) can inform investment decisions for CCS retrofits on gas plants.
🏛政策担当者:The sensitivity to carbon pricing reinforces the role of carbon price signals in incentivizing CCS adoption.
📄 Abstract（原文）
The increasing penetration of renewable energy sources is forcing fossil fuel power plants, where carbon capture and storage represents a key decarbonization pathway, into more frequent part-load operation, requiring greater operational flexibility. In this context, we assess the techno-economic viability of retrofitting an existing natural gas combined cycle power plant operating under variable load conditions, based on realistic hourly dispatch data, by integrating a post-combustion carbon capture system using a piperazine 20% wt. and methyldiethanolamine 10% wt. solvent blend. The thermodynamic performance of the retrofitted plant is assessed through process simulation in Aspen Plus, while the economic and investment viability is evaluated using MATLAB. Results demonstrate that the retrofitted plant achieves 90% CO 2 capture rate across all operating conditions, with a 6 percentage point efficiency penalty compared to the unabated baseline, maintaining a high global efficiency of 50%. From an economic perspective, the retrofitted configuration exhibits a levelized cost of electricity of 156 €/MWh and a CO 2 avoidance cost of 115 €/t CO 2 , avoid , both competitive with alternative low-carbon generation options. Net present value analysis confirms the economic feasibility of the retrofit under current European market conditions. Furthermore, with carbon prices expected to rise in line with decarbonization targets, investment profitability is projected to improve progressively.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.ecmx.2026.101996first seen 2026-06-19 04:40:42
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