Centralized and decentralized electrolysis-based hydrogen supply systems for road transportation – A modeling study of current and future costs
This work compares the costs of three electrolysis-based hydrogen supply systems for heavy road transportation: a decentralized, off-grid system for hydrogen production from wind and solar power (Dec-Sa); a decentralized system connected to the electricity grid (Dec-Gc); and a centralized grid-conne...
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Published in | International journal of hydrogen energy Vol. 48; no. 12; pp. 4830 - 4844 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Elsevier Ltd
08.02.2023
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Subjects | |
Online Access | Get full text |
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Summary: | This work compares the costs of three electrolysis-based hydrogen supply systems for heavy road transportation: a decentralized, off-grid system for hydrogen production from wind and solar power (Dec-Sa); a decentralized system connected to the electricity grid (Dec-Gc); and a centralized grid-connected electrolyzer with hydrogen transported to refueling stations (Cen-Gc). A cost-minimizing optimization model was developed in which the hydrogen production is designed to meet the demand at refueling stations at the lowest total cost for two timeframes: one with current electricity prices and one with estimated future prices. The results show that: For most of the studied geographical regions, Dec-Gc gives the lowest costs of hydrogen delivery (2.2–3.3€/kgH2), while Dec-Sa entails higher hydrogen production costs (2.5–6.7€/kgH2). In addition, the centralized system (Cen-Gc) involves lower costs for production and storage than the grid-connected decentralized system (Dec-Gc), although the additional costs for hydrogen transport increase the total cost (3.5–4.8€/kgH2).
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•Three electrolysis-based hydrogen supply systems are compared.•Comparisons are made between centralized/decentralized systems.•Both grid-connected and standalone systems are evaluated.•For most regions, decentralized grid-connected systems have the lowest costs. |
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ISSN: | 0360-3199 1879-3487 |
DOI: | 10.1016/j.ijhydene.2022.10.242 |