PHOTOVOLTAIC-DRIVEN ALKALINE ELECTROLYSIS AS A PATHWAY TO DECENTRALISED GREEN HYDROGEN: A CRITICAL REVIEW
分散型グリーン水素への道筋としての太陽光駆動アルカリ水電解：批判的レビュー (AI 翻訳)
Bakhramov, Sh.K., Qosimov, M.U., Bakhramov, Sh.K.
🤖 gxceed AI 要約
日本語
本レビューは、太陽光発電によるアルカリ水電解（AEL）を用いた分散型グリーン水素製造の技術的実現可能性を、電解質、電極材料、電力調整の3点から評価する。ウズベキスタン条件で5kWの太陽光アレイから年間160-180kgの水素を生成可能とし、水素コストを5ドル/kg未満に低減する道筋を示す。低コスト材料とMPPTによる構成が資源制約地域に適する。
English
This review critically evaluates decentralized green hydrogen production via photovoltaic-driven alkaline electrolysis, focusing on electrolyte, electrode materials, and power conditioning. It finds that a 5 kW solar array can yield 160-180 kg H2/yr under Uzbekistan conditions, with pathways to reduce levelized hydrogen cost below $5/kg. Low-cost materials and MPPT-based configuration are suitable for resource-limited settings.
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
日本では水素基本戦略やグリーンイノベーション基金により水素供給網の構築が進むが、本論文は高日射・資源制約地域での分散型水素製造の実証データを提供し、日本の国際協力や技術輸出の観点で参考になる。
In the global GX context
Globally, this review contributes to the growing literature on decentralized green hydrogen, particularly for developing regions with high solar irradiance. It offers practical design principles that complement large-scale hydrogen projects and informs policy on cost-effective hydrogen production in resource-limited settings.
👥 読者別の含意
🔬研究者:Provides a consolidated analysis of PV-driven alkaline electrolysis design parameters and performance benchmarks for decentralized hydrogen systems.
🏢実務担当者:Offers a low-cost entry configuration (30% KOH, 316L SS electrodes, MPPT) for small-scale green hydrogen production in sunny regions.
🏛政策担当者:Highlights the potential of decentralized solar hydrogen to meet energy needs in developing countries, informing support for off-grid hydrogen solutions.
📄 Abstract（原文）
Decentralised green hydrogen generation through photovoltaic-driven alkaline water electrolysis (AEL) is attracting growing research interest as the cost of solar electricity approaches parity with grid power across much of the developing world. This paper critically examines the published evidence on three pillars of system performance: the thermodynamic and kinetic roles of the electrolyte; the catalytic and durability properties of electrode materials available at low cost; and the power-conditioning strategies required to interface a variable photovoltaic source with the largely ohmic load of an AEL stack. Four experimental papers from Andijan State Technical Institute (ASTI) [3–6] are analysed within the context of seventeen international studies to identify design principles applicable to high-irradiance, resource-limited settings. The review concludes that 30 wt% KOH, 316L stainless steel electrodes operated below 10 mA cm⁻², and MPPT-equipped power converters together constitute a technically sound and economically accessible entry configuration, capable of yielding 160–180 kg H₂ yr⁻¹ from a 5 kW solar array under Uzbekistan conditions. Pathways to reduce the levelised hydrogen cost below $5 kg⁻¹ are discussed.
🔗 Provenance — このレコードを発見したソース
- Zenodo https://zenodo.org/records/21773795first seen 2026-08-04 04:13:32
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