再生可能水素生産経路の比較評価
Comparative Assessment of Renewable Hydrogen Production Pathways (原題)
David Tomić, Kristina Radinović, Guilherme R. R. Amaral, J. Milikić, D. M. F. Santos, Biljana Šljukić, D. Mladenović
🤖 gxceed AI 要約
日本語
本論文は、太陽光・風力・水力・地熱による水電解と、バイオマス由来の熱化学的・生物的プロセスを含む再生可能水素の生産経路を比較評価した。太陽光・風力ベースの電解が技術成熟度・拡張性・コストのバランスで最も有利で、均等化コストは約3.8〜11.9 USD/kg H2と報告されている。バイオマス系は効率が高いが材料・持続可能性の制約があり、洋上風力電解などの新興技術は長期的潜在力を持つが成熟度が低い。
English
This study compares renewable hydrogen production pathways, including water electrolysis powered by solar, wind, hydro, and geothermal electricity, plus thermochemical and biological biomass routes. Solar- and wind-based electrolysis currently offers the best balance of maturity, scalability, and cost, with levelized costs of roughly 3.8–11.9 USD/kg H2. Biomass processes are efficient but face material and sustainability limits, while emerging options like offshore-wind electrolysis remain immature.
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
日本は水素基本戦略やGX推進法のもとで水素社会の実現を掲げており、再生可能水素のコスト・経路比較は国内の水素供給戦略や企業の脱炭素投資判断に直接資する。特に調達コストと技術成熟度の評価は、日本企業が水素導入を検討する際の実務的示唆を与える。
In the global GX context
This paper informs global hydrogen strategy and transition finance discussions by clarifying cost and maturity trade-offs across renewable pathways. It supports TCFD/ISSB-aligned disclosure of hydrogen-related decarbonization levers and helps investors assess the credibility of green hydrogen claims in corporate transition plans.
👥 読者別の含意
🔬研究者:再生可能水素経路のコスト・成熟度比較の最新レビューとして、研究の出発点やギャップ特定に有用。
🏢実務担当者:水素調達や脱炭素投資を検討する企業にとって、経路別コストと成熟度の判断材料を提供する。
🏛政策担当者:水素政策や補助金設計において、どの経路を優先すべきかのエビデンスとして参照できる。
📄 Abstract（原文）
The global transition to low-carbon energy systems has intensified interest in hydrogen as a clean energy carrier. Still, the environmental benefits of using hydrogen as a fuel depend greatly on its production process, as conventional fossil-fuel-based methods are associated with significant greenhouse gas emissions. In this regard, hydrogen production from renewable energy (so-called green hydrogen) has emerged as a promising solution for sustainable energy systems. This study evaluates water electrolysis powered by renewable electricity from solar, wind, hydroelectric, and geothermal sources alongside thermochemical and biological hydrogen production from biomass. Solar- and wind-based electrolysis currently offers the most favorable balance between technological maturity, scalability, and cost, with levelized costs ranging from about 3.8 to 11.9 USD/kg H2 depending on resource quality and electricity price. Conversely, biomass-based processes operate more efficiently but face material and sustainability limitations. Emerging technologies (e.g., offshore wind-energy-powered water electrolysis) show significant long-term potential but remain constrained by low maturity. This paper highlights key challenges and future research directions needed to accelerate the transition to a sustainable hydrogen economy.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/pr14193088first seen 2026-10-01 05:25:26 · last seen 2026-10-02 05:25:01
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