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Techno-economic-environmental evaluation of a solar-hydrogen-battery hybrid system: a real-time case study

太陽光-水素-バッテリーハイブリッドシステムの技術・経済・環境評価：実時間ケーススタディ (AI 翻訳)

H. Saleeb, Mohamed F. Baroma, Almoataz Y. Abdelaziz, Rasha Kassem

Scientific Reports2026-06-04#水素
DOI: 10.1038/s41598-026-54814-4
原典: https://doi.org/10.1038/s41598-026-54814-4

🤖 gxceed AI 要約

日本語

エジプトの大学施設を対象に、太陽光発電、バッテリー、グリーン水素（電解槽・水素貯蔵・燃料電池）を統合したハイブリッドシステムの3シナリオを技術・経済・環境面で評価。シナリオ3（PV/FC/BESS/H2/UG）は、コストが高いものの再生可能エネルギー比率75.7％とほぼ100％の供給信頼性を達成。水素を長期貯蔵として活用する戦略的エネルギーバッファの有効性を示した。

English

This study evaluates three configurations of a solar-hydrogen-battery hybrid system for a university campus in Egypt. Scenario 3 (PV, battery, hydrogen, grid) achieves 75.7% renewable fraction and near 100% supply reliability, though with higher costs (LCOE 0.0832 USD/kWh). Hydrogen as long-term storage proves effective for mitigating solar intermittency and grid instability.

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

日本でも水素と再生可能エネルギーの統合がGX政策の柱であり、本論文の実証データは日本の学術機関や自治体が同様のハイブリッドシステムを導入する際の技術・経済的参考になる。水素の長期貯蔵利用は、日本の季節間変動対応にも示唆を与える。

In the global GX context

This case study provides empirical evidence for integrating green hydrogen storage with solar PV and batteries, relevant for global energy transition planning. It demonstrates the trade-offs between cost and reliability, informing hybrid system design under ISSB or TCFD-aligned climate strategies.

👥 読者別の含意

🔬研究者:Provides comparative performance data for three hybrid system architectures, useful for optimization studies.

🏢実務担当者:Offers cost and reliability benchmarks for solar-hydrogen-battery projects, aiding investment decisions.

🏛政策担当者:Shows the value of hydrogen as long-term storage in renewable grids, supporting policy for hydrogen infrastructure.

📄 Abstract（原文）

The global shift toward net-zero carbon emissions requires flexible, multi-source energy systems capable of overcoming disruptions in renewable energy sources. This study presents a comprehensive technical, economic and environmental assessment of a hybrid energy system designed for the Faculty of Technology and Education at Sohag University, Egypt. The research evaluates three operational scenarios, involving the integration of the utility grid (UG), photovoltaic (PV) cells, a battery energy storage system (BESS), and a green hydrogen production subsystem consisting of an electrolyzer, hydrogen storage (H2), and fuel cells (FC). Scenario 1 (PV/BESS/UG) serves as the baseline configuration, achieving a renewable fraction of 74.7% but maintaining significant dependence on the electrical grid. Scenario 2 (PV/FC/H2/UG) demonstrated the economic infeasibility of a hydrogen subsystem configured to operate on a daily charge–discharge cycle rather than functioning as a long-duration or seasonal storage system; the optimization results favored grid electricity over fuel cell dispatch. Scenario 3 (PV/FC/BESS/H2/UG) emerges as the most effective configuration. Despite exhibiting a higher net present cost (NPC: 823,477 USD) and a levelized cost of energy (LCOE: 0.0832 USD/kWh), it achieved a renewable fraction of 75.7% and ensured nearly 100% supply reliability with negligible unmet electrical load. The results indicate that the integration of BESS for short-term response and H2 for long-term energy reserve provides a strategic energy buffer capable of mitigating the effects of solar PV power outages and grid instability.

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