GIS-Based Spatial Assessment of Co-Located Solar–Green Hydrogen and Industrial Wastewater Reuse Systems: A Case Study of Karachi
GISに基づく太陽光・グリーン水素・産業排水再利用の統合システムの空間評価：カラチの事例研究 (AI 翻訳)
Irtaza Bashir Raja, Yasir Ahmad, Tariq Feroze, Bekir Genc
🤖 gxceed AI 要約
日本語
本稿は、GISを用いてカラチの繊維工場における太陽光・グリーン水素ハイブリッドシステムと産業排水再利用の統合を評価する。空間データを活用し、エネルギー信頼性の向上、淡水使用の削減、化石燃料代替による環境便益を定量化。これらの便益は空間的重複に依存することを示し、GISが水―エネルギー・ネクサスの意思決定に有効であることを実証する。
English
This paper uses GIS to evaluate co-locating solar-green hydrogen with industrial wastewater reuse at a textile facility in Karachi, Pakistan. It shows spatially integrated deployment improves energy reliability, reduces freshwater withdrawal, and displaces fossil-fuel electricity, with benefits highly dependent on location. The study demonstrates GIS as a tool for water-energy nexus decision-making in urban-industrial contexts.
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
日本の水素戦略や途上国インフラ投資において、空間的に最適なグリーン水素拠点計画の参考になる。水ストレス地域での再生可能エネルギーと水資源の統合管理手法として、日本企業の海外展開にも示唆を与える。
In the global GX context
This paper offers a replicable GIS framework for planning co-located green hydrogen and water reuse, relevant for global hydrogen hubs and water-energy nexus projects. It provides empirical evidence from a Global South megacity, filling a gap in spatially explicit sustainability assessments.
👥 読者別の含意
🔬研究者:Demonstrates a GIS-based method for assessing spatial trade-offs in integrated renewable energy and water systems, applicable to other urban-industrial regions.
🏢実務担当者:Provides a transparent workflow for evaluating feasibility and benefits of co-located solar-hydrogen and wastewater reuse in industrial zones.
🏛政策担当者:Highlights the importance of spatial planning in maximizing the benefits of green hydrogen infrastructure in water-stressed areas.
📄 Abstract（原文）
Urban–industrial regions in the Global South face intertwined challenges of energy insecurity, freshwater scarcity, and environmental degradation that are strongly shaped by spatial context. This article presents a Geographic Information Systems (GIS) informed case study examining the integration of a solar–green hydrogen hybrid energy system with industrial wastewater reuse at a textile manufacturing facility in Karachi, Pakistan, a water-stressed and solar-rich megacity with concentrated industrial activity. Designed for sustainability science and GIS education, the case demonstrates how spatial analysis can inform real-world decision-making at the water–energy nexus. Using a transparent and replicable GIS workflow, the study integrates spatial datasets on solar resource availability, industrial land use, wastewater generation, and infrastructure proximity to evaluate the feasibility and sustainability implications of co-locating renewable energy generation, hydrogen storage, and wastewater treatment within an industrial zone. Results show that spatially integrated deployment improves energy reliability, substantially reduces freshwater withdrawal through wastewater reuse and water recovery, and delivers environmental benefits by displacing fossil-fuel-based electricity in dense industrial areas. The analysis further demonstrates that these benefits are highly location-dependent and diminish in settings where energy demand and wastewater availability do not spatially overlap. Through this case, readers will learn how GIS can be applied to evaluate integrated energy–water systems, assess spatial trade-offs, and develop place-based sustainability strategies applicable to other urban–industrial contexts.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1525/cse.2026.2883615first seen 2026-05-20 05:33:57
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