Meta-Analysis of Hydrogen’s Role in Residential Heat Decarbonization
住宅熱脱炭素化における水素の役割に関するメタ分析 (AI 翻訳)
Eleonora Aneggi, Marilda Scarbolo, D. Zuccaccia
🤖 gxceed AI 要約
日本語
本メタ分析（2024～2025年初頭）は、住宅暖房における水素の役割を消費、コスト、環境影響の観点から評価。直接的な水素暖房は熱力学・経済的に非効率であり、ヒートポンプへの電化が最適解と結論。一方、水素は季節間エネルギー貯蔵や系統調整に戦略的価値を持ち、ハイブリッド構成で系統レジリエンス強化に貢献する。水素の住宅用途はニッチであり、大規模実証が必要。
English
This meta-analysis (2024–early 2025) evaluates hydrogen's role in residential heating, finding direct hydrogen heating inefficient and expensive compared to electrification (heat pumps). Hydrogen's strategic value lies in seasonal storage and grid balancing via hybrid systems, while blending into gas networks is a transitional measure. Overall, hydrogen's residential role remains niche.
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
日本は水素社会の実現を掲げるが、本論文は住宅暖房への直接利用に否定的。日本の水素政策（特に都市ガスとの混焼や家庭用燃料電池）に対して、より効率的な電化（ヒートポンプ）へのシフトを促す示唆となる。日本のエネルギー基本計画やSSBJ開示における脱炭素経路の議論に影響を与えうる。
In the global GX context
This meta-analysis challenges hydrogen's role in residential heating, favoring electrification. Globally, it supports ISSB/TCFD-aligned transition planning by advocating for energy-efficiency-first strategies. It informs corporate disclosure on technology pathways and risks of stranded assets in hydrogen infrastructure.
👥 読者別の含意
🔬研究者:Provides a comprehensive synthesis of evidence on hydrogen vs. electrification for heating, identifying research gaps on hybrid systems and seasonal storage.
🏢実務担当者:Helps corporate sustainability teams evaluate hydrogen investments in residential heating, suggesting a focus on grid-level storage rather than end-use.
🏛政策担当者:Informs regulators designing net-zero building regulations and hydrogen strategies, highlighting electrification as primary and hydrogen for grid resilience.
📄 Abstract（原文）
Hydrogen is a potential energy carrier for the decarbonization of the heating sector; however, its long-term role remains highly debated. This meta-analysis (2024–early 2025) assesses hydrogen’s potential for domestic heating regarding consumption, costs, and environmental impacts. Current scientific evidence distinguishes between hydrogen use for direct residential heating and its role in integrated energy systems. For residential decarbonization, the literature does not support hydrogen as a primary solution: electrification, especially through heat pumps, remains the most efficient and cost-effective long-term pathway. Direct hydrogen heating faces major thermodynamic and economic barriers, including low conversion efficiency, high Levelized Costs of Energy (LCOE), infrastructure limitations, and challenges in achieving broad social acceptance. Hydrogen’s more strategic value emerges at the system level. Hybrid configurations that combine heat pumps with hydrogen storage show strong potential by using heat pumps to efficiently meet thermal demand while reserving hydrogen for flexible backup and storage. In particular, hydrogen is well suited for long-term seasonal energy storage and grid balancing, enhancing system flexibility and reliability. Its main contribution therefore lies not in direct end-use heating, but in strengthening grid resilience and supporting energy autarky in net-zero scenarios. Hydrogen blending into existing gas networks is widely viewed as a transitional measure to stimulate the hydrogen economy and deliver limited short-term emission reductions, rather than a definitive net-zero solution. Overall, hydrogen’s residential role remains niche, requiring targeted research, development, and large-scale pilot projects to validate competitive applications.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/hydrogen7010034first seen 2026-05-15 17:58:22
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