エネルギー中立街区に向けた季節間エネルギー貯蔵としての水素の実現可能性評価
Feasibility evaluation of hydrogen as seasonal energy storage for energy-neutral neighborhoods (原題)
I. Verbytskyi, A. Blinov, Dimitri Vinnikov
🤖 gxceed AI 要約
日本語
EUの脱炭素化を背景に、再エネ大量導入下での季節間エネルギー貯蔵手段として水素の実現可能性をエストニアの実住宅データで評価した研究。電池と水素の日次・季節間構成を技術経済比較し、水素発電時の廃熱を住宅暖房に活用することが経済性成立の鍵だと示す。
English
This study assesses hydrogen as seasonal energy storage for RES-based residential power systems using real Estonian household data. Comparing daily and seasonal battery vs. hydrogen configurations techno-economically, it finds that reusing waste heat from hydrogen-to-electricity conversion for residential heating is key to economic feasibility.
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
日本でも再エネ余剰電力の季節間貯蔵は課題であり、水素と廃熱利用を組み合わせた住宅規模の技術経済評価は、地域脱炭素・水素社会戦略の検討に示唆を与える。
In the global GX context
As global disclosure frameworks (TCFD/ISSB) push firms to quantify transition pathways, this paper offers granular techno-economic evidence on hydrogen seasonal storage and sector-coupling (heat reuse) that informs corporate decarbonization planning and grid-flexibility debates.
👥 読者別の含意
🔬研究者:住宅規模での水素季節間貯蔵の技術経済性と廃熱カップリングの条件を定量化した実証データを提供する。
🏢実務担当者:再エネ自家消費・蓄電投資を検討する企業に対し、水素と廃熱利用の組み合わせが経済性を左右する点を示唆する。
🏛政策担当者:水素貯蔵の普及には廃熱利用を含む制度設計とインフラ整備が不可欠であることを示す。
📄 Abstract（原文）
he decarbonization of the European Union energy sector is associated with large-scale integration of renewable energy sources (RES) and a transition toward decentralized electricity supply architectures. While residential energy storage systems (ESS) based on electrochemical batteries enable short-term balancing of renewable generation, their limited energy capacity and high cost make them unsuitable for seasonal energy storage, leading to significant curtailment of renewable energy production. Hydrogen-based energy storage is considered a promising alternative due to its high specific energy capacity and suitability for long-term storage, despite low round-trip electrical efficiency and infrastructural challenges. This paper evaluates the feasibility of hydrogen technologies for electrical energy storage in RES-based residential power systems in Estonia. The analysis is based on a real Estonian household dataset and considers metrics such as near-zero energy consumption, grid-support capability, and RES energy utilization. A comparative assessment of daily and seasonal ESS configur ations together with a techno-economic comparison of battery and hydrogen-based storage systems is performed. Special attention is given to the utilization of waste heat generated during hydrogen-to-electricity conversion for residential heating, which is identified as a key condition for achieving economic feasibility and improving overall system efficiency.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://kirj.ee/wp-content/plugins/kirj/pub/proc-4-2026-285-301_20260922155406.pdffirst seen 2026-09-26 05:13:57 · last seen 2026-09-29 05:22:10
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