Social life cycle assessment of green hydrogen integration with geothermal power plants: production and use as a spinning reserve
Alessia Manfredi, Marzia Traverso, Davis Jose, Daniele Fiaschi
🤖 gxceed AI 要約
日本語
本研究は、地熱発電所に水素ベースの補助セクション（スピニングリザーブ）を統合したハイブリッド構成に対して、事前社会ライフサイクルパフォーマンス評価を実施した。蓄積サブシステムと運用段階が社会的リスクの70％以上を占め、電解槽のニッケルやプラチナなどの重要材料の採掘が主なリスク要因であることを明らかにした。早期段階の技術設計において社会的に責任ある水素展開のための政策枠組みを支援する。
English
This study conducts an ex-ante Social Life Cycle Performance Assessment of a hydrogen-based spinning reserve integrated with a geothermal power plant. It finds that the storage subsystem and operational stage account for over 70% of social risks, with critical material extraction (nickel, platinum) as primary drivers. The results support early-stage technology design and policy frameworks for socially responsible hydrogen deployment.
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
本論文は、グリーン水素の社会的LCA手法を提示しており、日本政府が推進する水素基本戦略やグリーン成長戦略において、サプライチェーンの社会的リスク評価に活用できる。特に、電解槽に使用されるレアメタル調達における社会的ホットスポットの特定は、日本の資源調達政策にも示唆を与える。
In the global GX context
This paper applies Social LCA to green hydrogen systems, aligning with global hydrogen deployment efforts and social sustainability under frameworks like the EU Hydrogen Strategy. It provides a methodology for identifying social hotspots in supply chains, relevant for companies and policymakers worldwide aiming for just transitions.
👥 読者別の含意
🔬研究者:Researchers can adopt the ex-ante Social LCA methodology for other clean energy technologies and improve social indicators.
🏢実務担当者:Corporate sustainability teams can use the identified social hotspots to inform supplier selection and due diligence for hydrogen projects.
🏛政策担当者:Policymakers can leverage the findings to design socially responsible hydrogen deployment policies and incentives for low-impact supply chains.
📄 Abstract（原文）
This study performs an ex-ante Social Life Cycle Performance Assessment to a hydrogen-based supplementary section of a geothermal power plant, operating as a spinning reserve, i.e. storing surplus energy and dispatching it when required. The system operates in two modes: accumulation phase, for hydrogen production via geothermal-powered electrolysis and storage, and electricity generation phase through oxy-combustion of stored gases. The assessment, aligned with ISO 14075:2024, identifies social hotspots within this hybrid configuration. Results indicate that the storage subsystem and operational stage account for over 70% of social risks. Upstream processes associated with the accumulation subsystem, particularly the extraction of critical materials like nickel and platinum for the electrolyser stack, are primary risk drivers. The findings demonstrate the usefulness of ex-ante Social Life Cycle Performance Assessment in early-stage technology design, supporting decisions as prioritising low-impact material supply chains, improving supplier selection criteria, and guiding policy frameworks for socially responsible hydrogen deployment.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.ijhydene.2026.156208first seen 2026-07-25 04:57:15
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