Evaluating the Viability of Green Hydrogen Co-Firing through Cost Neutral Hydrogen Price and Decarbonization Gradient: A Case Study of Tanjung Uncang CCGT
グリーン水素混焼の実現可能性評価：コスト中立水素価格と脱炭素勾配によるタンジュン・ウンカンCCGTのケーススタディ (AI 翻訳)
Windy Lusia Samosir, M. Singgih, Nico Aditya Pratama
🤖 gxceed AI 要約
日本語
インドネシアのタンジュン・ウンカンCCGTにおけるグリーン水素混焼の技術・経済的実現可能性を評価。太陽光ベースの電解とグリッド+RECの2経路を比較し、LCOH、LCOE、コスト中立水素価格（CNHP）を算出。結果、技術的には可能だが、CNHPは1,727〜1,752ドル/トンに対し実際のLCOHは6,369〜10,048ドル/トンと高く、経済的には競争力がない。脱炭素勾配（DG）は705〜1,260ドル/CO2トンで、炭素価格参照と比べ高い。
English
This study assesses the technical and economic viability of green hydrogen co-firing at the Tanjung Uncang CCGT in Indonesia, comparing dedicated solar PV electrolysis and grid+REC pathways. Results show technical feasibility but high costs: CNHP is $1,727-1,752/t H2, while actual LCOH ranges $6,369-10,048/t H2. The decarbonization gradient (DG) is $705-1,260/t CO2, indicating high abatement costs. Hydrogen co-firing is not yet economically competitive under current conditions.
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
日本の水素混焼政策やCCUS戦略に示唆を与える。特に、コスト中立水素価格や脱炭素勾配の概念は、日本の水素社会実現に向けたコスト評価に応用可能。ただし、インドネシアのケースであり、日本の電力市場や水素供給インフラとは異なる点に注意。
In the global GX context
This paper contributes to global hydrogen co-firing literature by introducing the Cost Neutral Hydrogen Price (CNHP) and Decarbonization Gradient (DG) metrics, which are useful for assessing hydrogen's economic viability in power generation. It provides empirical evidence from an emerging economy, highlighting the gap between hydrogen costs and carbon prices, relevant for transition finance and policy design.
👥 読者別の含意
🔬研究者:Introduces CNHP and DG metrics for hydrogen co-firing cost-benefit analysis, useful for comparative studies.
🏢実務担当者:Provides a framework for evaluating hydrogen co-firing projects, including cost benchmarks and technical constraints.
🏛政策担当者:Highlights the need for carbon pricing or subsidies to make hydrogen co-firing economically viable.
📄 Abstract（原文）
This study evaluates the technical and economic viability of green hydrogen co-firing at the Tanjung Uncang combined cycle gas turbine (CCGT) in Batam, Indonesia, under two hydrogen supply pathways: dedicated solar PV-based electrolysis and grid-connected electrolysis supported by Renewable Energy Certificates (REC). The techno-economic assessment combines hydrogen demand estimation, natural gas displacement, Levelized Cost of Hydrogen (LCOH), Levelized Cost of Electricity (LCOE), and Cost Neutral Hydrogen Price (CNHP). In addition, the Decarbonization Gradient (DG) is introduced to measure the incremental system cost required for each unit of CO₂ emission reduction. The results show that hydrogen co-firing can reduce direct CO₂ emissions and is technically feasible within certain operating limits. However, higher hydrogen shares increase hydrogen demand, electrolysis electricity requirements, flashback risk, NOx constraints, and equipment modification needs. Economically, the estimated CNHP ranges from USD 1,727 to 1,752 per ton H₂, while the actual LCOH remains significantly higher at USD 9,469–10,048 per ton H₂ for the dedicated PV pathway and USD 6,369– 6,946 per ton H₂ for the Grid + REC pathway. The resulting DG ranges from USD 705 to 1,260 per ton CO₂, indicating a high carbon abatement cost compared with local carbon price references. These findings suggest that green hydrogen co-firing at Tanjung Uncang CCGT is technically achievable but not yet economically competitive under current cost conditions.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://www.e3s-conferences.org/articles/e3sconf/pdf/2026/49/e3sconf_eic2026_04003.pdffirst seen 2026-08-16 05:34:25
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