電力システム転換におけるグリーン水素貯蔵の季節的柔軟性と資源代替価値の定量化
Quantifying the Seasonal Flexibility and Resource Substitution Value of Green Hydrogen Storage for Power System Transitions (原題)
Rijing Zhao, Xiao-Long Sun, Quan-Fu Liu, Ming-Ming Zhang, Chao Guo, Jian Zhang
🤖 gxceed AI 要約
日本語
内モンゴル2035年電力システムを対象に、GenX-DOLPHYNでグリーン水素の季節貯蔵価値を評価。水素導入により風力・太陽光は24GW増、石炭火力は7GW減、蓄電池は10GW/80GWh減となり、CO2は18.93Mt（4.96%）削減される。水素発電の89.4%は12〜2月に集中し季節調整機能を確認。年間システム費用の増加はわずか0.22%で、効率向上と高負荷が価値を高める。
English
Using GenX-DOLPHYN with 8,760 hourly steps, this study values green hydrogen seasonal storage in Inner Mongolia's 2035 power system. Hydrogen adds 24 GW wind/solar, cuts 7 GW coal and 10 GW/80 GWh batteries, reducing CO2 by 18.93 Mt (4.96%) at only 0.22% higher annualized cost. 89.4% of hydrogen generation occurs in winter, confirming seasonal shifting; higher efficiency and load raise its value.
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
日本では再エネ大量導入に伴う季節間調整力の確保が課題であり、水素貯蔵の費用対効果と石炭・蓄電池代替の定量根拠は、GX推進法や第7次エネルギー基本計画下の電源構成・水素政策の議論に直接示唆を与える。
In the global GX context
Provides quantitative evidence that hydrogen seasonal storage can cost-effectively substitute coal and short-duration batteries while enabling renewable integration—directly relevant to global power-sector transition planning and hydrogen strategy debates under net-zero targets.
👥 読者別の含意
🔬研究者:長期電力システムモデルにおける水素貯蔵の季節柔軟性評価手法と感度分析の枠組みを参考にできる。
🏢実務担当者:水素導入が蓄電池・石炭火力の必要容量をどう変えるか、設備計画や投資判断の定量的根拠として活用できる。
🏛政策担当者:水素貯蔵が限界的な追加費用で再エネ統合とCO2削減を進められる点は、水素・電力政策の設計に有用なエビデンスとなる。
📄 Abstract（原文）
This study evaluates the system-level value of green hydrogen-based seasonal energy storage in the 2035 Inner Mongolia power system using the GenX-DOLPHYN framework with 8,760 consecutive hourly time steps. Two main scenarios are compared: a reference scenario without hydrogen technologies and a hydrogen-enabled scenario incorporating electrolysis, hydrogen storage, and hydrogen-fired generation. The results show that introducing hydrogen storage increases combined wind and solar capacity by 24 GW, reduces coal-fired capacity by 7 GW, and decreases battery storage by 10 GW/80 GWh. Coal-fired generation decreases by 23.73 TWh, while wind and solar generation increase by 40.40 TWh. Hydrogen-fired generation is highly concentrated in winter, with 89.4% occurring from December to February, confirming its seasonal energy-shifting role. Compared with the reference scenario, the hydrogen-enabled system reduces carbon emissions by $\mathbf{1 8. 9 3} \mathbf{~ M t C O}_{\mathbf{2}}$, or $\mathbf{4. 9 6 \%}$, while increasing total annualized system cost by only 0.22%. Sensitivity analyses indicate that higher hydrogen conversion efficiency and higher load levels enhance the system value of green hydrogen storage, particularly in coal substitution, emission reduction, and winter capacity support. These findings suggest that green hydrogen storage can facilitate renewable integration, partially substitute coal power and short-duration batteries, and provide seasonal flexibility at limited additional cost.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1109/sges70879.2026.11662689first seen 2026-09-15 04:57:57 · last seen 2026-09-21 05:04:27
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