Technical trajectories and cost effectiveness of offshore wind driven green hydrogen production
洋上風力によるグリーン水素製造の技術的軌道と費用対効果 (AI 翻訳)
Siyuan Liu, Xuantong Li, Mengyao Han, Lijuan Chen, Keyi Liu, Chao Ai
🤖 gxceed AI 要約
日本語
本報告は、洋上風力によるグリーン水素製造の技術経路、資源ポテンシャル、空間分布、経済・環境便益を体系的に分析。AWE、PEMWE、SOECの海洋環境での適用性を検討し、3つのシステム構成（洋上集中型、洋上分散型、陸上集中型）を比較。浙江省や広東省の高い海洋資源ポテンシャル、戦略優位性を持つ渤海エリアを示す。IRENAのデータでは政策介入により電解槽コストが近期的に40%、長期的に80%削減可能。IEAは好条件地域で約1.5ドル/kgの水素コストを予測。カーボンフットプリントは0.4-0.8 kg CO2 eq/kg H2と低く、グレー水素の10%以下。
English
This report systematically analyzes technical pathways, resource potential, spatial distribution, and economic/environmental benefits of offshore wind-driven green hydrogen production. It reviews water electrolysis technologies (AWE, PEMWE, SOEC) in marine environments and compares three system configurations: offshore centralized, offshore distributed, and onshore centralized. Spatial analysis highlights Zhejiang and Guangdong for resource potential, and the Bohai Sea region for strategic advantages. Policy interventions could cut electrolyzer costs by 40% (near term) to 80% (long term) per IRENA. IEA projects hydrogen costs as low as $1.5/kg by 2030 in favorable regions. Life-cycle carbon footprint is 0.4–0.8 kg CO2 eq/kg H2, significantly lower than grey hydrogen.
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
日本でも洋上風力と水素の連携はGX実現の柱の一つ。本論文は中国の地域特性に基づく詳細な空間分析を提供しており、日本の洋上風力ポテンシャルマップや電解槽導入計画との比較・参考材料となる。特にコスト低減シナリオは日本政策にも示唆を与える。
In the global GX context
This paper provides a granular analysis of offshore wind-to-hydrogen pathways with a focus on Chinese coastal provinces, offering valuable benchmarks for global hydrogen strategies. The cost reduction projections and lifecycle carbon assessments are directly relevant to ISSB and TCFD-aligned transition planning, especially for energy companies and investors assessing green hydrogen economics.
👥 読者別の含意
🔬研究者:Provides a comprehensive overview of technical pathways and spatial analysis of offshore wind hydrogen in China, useful for comparative studies and technology assessment.
🏢実務担当者:Offers cost reduction scenarios and system configuration comparisons that inform investment decisions and project planning for offshore wind hydrogen projects.
🏛政策担当者:Highlights policy interventions needed to achieve cost competitiveness, with specific regional insights that can inform national hydrogen strategies and subsidy designs.
📄 Abstract（原文）
Hydrogen production from offshore wind power is a key pathway for deep decarbonization, converting abundant wind energy into green hydrogen to support energy system transformation. This report systematically analyzes its technical pathways, resource potential, spatial distribution, and economic and environmental benefits, reviews the applicability of mainstream water electrolysis technologies, including alkaline water electrolysis (AWE), proton exchange membrane water electrolysis (PEMWE), and solid oxide electrolysis (SOEC) in marine environments. The study also compares three system configurations, i.e., offshore centralized, offshore distributed, and onshore centralized hydrogen production. Spatial analysis reveals significant regional agglomeration, with Zhejiang and Guangdong exhibiting the highest marine resource potential, while Liaoning and Hebei around the Bohai Sea showing strategic advantages due to their proximity to load centers and established infrastructure. Economically, strategic policy interventions could reduce electrolyzer costs by 40% in the near term and up to 80% over the longer term, according to IRENA. The IEA projects that the levelized cost of hydrogen from offshore wind could fall to approximately $1.5/kg by 2030 in favorable regions, achieving cost-competitiveness with blue hydrogen. Environmentally, the life-cycle carbon footprint of offshore wind-based hydrogen is only 0.4–0.8 kg CO2 eq/kg H2, significantly lower than the 9.3–11.9 kg CO2 eq/kg H2 of grey hydrogen. By prioritizing resource-rich coastal provinces with strong industrial bases, this approach offers a near-zero emission solution, providing a critical technical pathway toward achieving dual carbon goals.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.59717/j.xinn-energy.2026.100145first seen 2026-05-15 19:30:05
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