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太陽光駆動グリーン水素製造の技術経済・環境性能：熱帯気候条件下における太陽光発電技術と電解槽選択の影響

Techno‐Economic and Environmental Performance of Solar‐Driven Green Hydrogen Production: Influence of Photovoltaic Technology and Electrolyzer Selection Under Tropical Climatic Conditions (原題)

A. Lekbir, Abdullahi Mohamed Samatar, Putri Nor Liyana Mohamad Radzi, Saad Mekhilef, K. Tey, M. Seyedmahmoudian

Energy Science & Engineering📚 査読済 / ジャーナル2026-08-25#水素Origin: Global経営インパクト: コスト削減対象セクター: energy
DOI: 10.1002/ese3.70634
原典: https://doi.org/10.1002/ese3.70634
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🤖 gxceed AI 要約

日本語

マレーシアの実測PVデータに基づき、3種類のPV技術と3種類の電解槽を組み合わせた9構成のグリーン水素製造を技術経済・環境面で評価。p-Si-SOELが最高の水素製造量と太陽-to-水素効率を示し、m-Si-ALKが最低の水素コストとライフサイクル排出強度を達成。熱帯地域での最適構成選定に資する知見を提供。

English

Based on measured PV data from Malaysia, this study evaluates nine PV-electrolyzer configurations for green hydrogen production. p-Si-SOEL achieves the highest hydrogen output and solar-to-hydrogen efficiency, while m-Si-ALK offers the lowest levelized cost of hydrogen and lifecycle emissions. Provides actionable guidance for optimal configuration selection in tropical regions.

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、国際的な水素サプライチェーン構築を進めており、本研究成果は熱帯地域での水素製造コスト・環境負荷の実データとして、日本の企業や研究機関が海外展開や技術選定を行う際の参考となる。

In the global GX context

This study provides empirical techno-economic and environmental data for green hydrogen in tropical climates, relevant to global hydrogen strategy and investment decisions. It complements ISSB-aligned climate disclosure by offering quantitative metrics for hydrogen project feasibility and emissions.

👥 読者別の含意

🔬研究者:Provides comparative performance data for PV-electrolyzer configurations in tropical conditions, useful for optimizing green hydrogen systems.

🏢実務担当者:Offers cost and emission benchmarks for selecting PV and electrolyzer technologies in tropical solar hydrogen projects.

🏛政策担当者:Informs policy on renewable hydrogen incentives and technology prioritization in tropical regions.

📄 Abstract（原文）

Green hydrogen produced through renewable energy‐powered water electrolysis is a promising pathway for decarbonizing future energy systems. However, the performance, economic feasibility, and environmental implications of integrated photovoltaic (PV) hydrogen systems under tropical climatic conditions remain insufficiently explored. This study presents a comprehensive techno‐economic and environmental assessment of nine solar‐driven hydrogen production configurations integrating three PV technologies: monocrystalline silicon (m‐Si), polycrystalline silicon (p‐Si), and amorphous silicon thin film (a‐Si), with three electrolyzer technologies: proton exchange membrane (PEM), alkaline (ALK), and solid oxide electrolyzer (SOEL). The analysis is based on 1 year of measured photovoltaic electrical output from the PEARL Laboratory, Universiti Malaya, Malaysia. The hydrogen production and solar‐to‐hydrogen efficiency figures reported here are model‐based estimates derived from these measured PV data; the PEM, ALK, and SOEL units were not physically operated. The results indicate that the p‐Si–SOEL configuration achieves the highest hydrogen production of 43.85 kg/year and solar‐to‐hydrogen efficiency of 7.98%. Economically, the p‐Si system records the lowest levelized cost of energy at $0.072/kWh, while m‐Si–ALK achieves the lowest levelized cost of hydrogen at $22.48/kg. Environmentally, m‐Si–ALK exhibits the lowest lifecycle emission intensity of 7.2 kg CO 2 /kg H 2 , while p‐Si yields the highest carbon mitigation potential. These findings establish a critical foundation for the strategic selection of optimal PV–electrolyzer configurations, offering actionable guidance for researchers, investors, and policymakers advancing sustainable green hydrogen production in tropical regions.

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