Solar and wind powered green hydrogen systems: A review
太陽光および風力を利用したグリーン水素システム：レビュー (AI 翻訳)
Q Alkhawlani, Sameer Algburi, Salah Sabeeh, Hadi Hakami, Saiful Islam
🤖 gxceed AI 要約
日本語
本レビューは、太陽光・風力発電によるグリーン水素製造経路を総合的に評価した。システム設計、電解槽運転、貯蔵、経済性、環境負荷、政策整合性を網羅し、水素製造コストは現状$3-13/kg、政策支援により$2/kg以下を2040年目標とするロードマップを提示する。
English
This review evaluates solar- and wind-powered green hydrogen pathways, covering system design, electrolyser operation, storage, economics, environmental footprints, and policy. It presents a roadmap targeting <$2/kg by 2040 through cost reductions and policy support.
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を掲げ、グリーン水素のコスト低減と大規模導入を目指している。本レビューの技術・政策分析は、日本の水素サプライチェーン構築や国際連携に示唆を与える。
In the global GX context
Green hydrogen is a key pillar of global decarbonisation. This review synthesises technical and policy pathways relevant to national hydrogen strategies, including ISSB-aligned disclosure of hydrogen projects and transition finance frameworks.
👥 読者別の含意
🔬研究者:Provides a structured evidence map and cost reconciliation for green hydrogen systems, useful for benchmarking future studies.
🏢実務担当者:Offers design and cost data for hybrid renewable-hydrogen projects, supporting investment and operational decisions.
🏛政策担当者:Highlights effective policy instruments (tax credits, carbon contracts) and a phased roadmap to reach cost targets.
📄 Abstract（原文）
This review evaluates solar- and wind-powered green hydrogen pathways for decarbonizing energy systems, focusing on system design, electrolyser operation, storage, economics, environmental footprints, and policy alignment. A structured evidence map compiles input ranges for renewable generation, batteries, electrolysers, and storage and reconciles reported cost outcomes across case studies. Electrolyser efficiency spans 60–80%, water demand spans 9–15 L kgH₂⁻ 1 , and salt-cavern storage costs fall less than $1 kWh⁻ 1 . Hybrid photovoltaic–wind systems with battery buffering report curtailed renewable energy less than 15% in high-utilization designs. Across reviewed studies, the levelized cost of hydrogen commonly ranges from $3 to $13 kg⁻ 1 under present-day capital costs, financing, and capacity factors. Policy instruments such as tax credits, carbon contracts for difference, and concessional finance are reported to reduce costs by up to $3 kg⁻ 1 when paired with certification and procurement commitments. An integrated 2030–2040 roadmap aligns technical targets (electrolyser CAPEX 400–600 $ kW⁻ 1 , lifetime more than 80 000 h) with phased policy milestones to support a cost pathway toward less than $2.0 kg⁻ 1 by 2040 while managing land and water trade-offs. • Global hydrogen exceeds 95 Mt yearly, 96% fossil-based with 900 Mt CO₂ emissions. • PV-only systems face 30–40% curtailment, cut to less than 15% with storage. • Electrolyzers operate at 60–80% efficiency, CAPEX ranges $500–1400 kW⁻¹ . • Green hydrogen LCA shows 0.6–2.5 kg CO₂e kgH₂⁻¹ , grey reaches 12–14 kg CO₂e. • Roadmap targets $2 kgH₂⁻¹ cost, 15 GW scale, and 80% efficiency by 2040.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.egyr.2026.109324first seen 2026-05-05 07:45:15 · last seen 2026-05-05 19:14:14
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