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Far off-shore wind energy-based hydrogen production: Technological assessment and market valuation designs

Author

Listed:
  • Maxime Woznicki

    (DP2L - CEA Tech Pays-de-la-Loire - CEA-TECH-Reg - CEA Tech en régions - DRT (CEA) - Direction de Recherche Technologique (CEA) - CEA - Commissariat à l'énergie atomique et aux énergies alternatives)

  • Guenael Le Solliec

    (DP2L - CEA Tech Pays-de-la-Loire - CEA-TECH-Reg - CEA Tech en régions - DRT (CEA) - Direction de Recherche Technologique (CEA) - CEA - Commissariat à l'énergie atomique et aux énergies alternatives)

  • Rodica Loisel

    (LEMNA - Laboratoire d'économie et de management de Nantes Atlantique - IEMN-IAE Nantes - Institut d'Économie et de Management de Nantes - Institut d'Administration des Entreprises - Nantes - UN - Université de Nantes)

Abstract

This article provides a techno-economic study on coupled offshore wind farm and green hydrogen production via sea water electrolysis (OWF-H2). Offshore wind energy, wind farms (OWF) and water electrolysis (WE) technologies are described. MHyWind (the tool used to perform simulations and optimisations of such plants) is presented, as well as the models of the main components in the study. Three case studies focus on offshore wind farms, either standalone or connected to the grid via export cables, coupled with a battery and electrolysis systems either offshore or onshore. Exhaustive searches and optimisations performed allowed for rules of thumb to be derived on the sizing of coupled OWF-H2 plants, that minimize costs of hydrogen production (LCoH2, in €/kgH2): Non-connected OWF-H2, coupled to a battery, offers the lowest LCoH2, without the costs of H2 transportation, when compared to cases where the WE is installed onshore and connected to the OWF. Using a simple power distribution heuristic, increasing the number of installed WE allows the system to take advantage of more OWF energy but doesn't improve plant efficiency, whereas a battery always does. Finally, within the scope of this study, it is observed that power ratios of optimized plant architectures (leading to the lowest LCoH2) are between 0.8-0.9 for PWE/POWF and 0.3-0.35 for PBattery/POWF.

Suggested Citation

  • Maxime Woznicki & Guenael Le Solliec & Rodica Loisel, 2020. "Far off-shore wind energy-based hydrogen production: Technological assessment and market valuation designs," Post-Print hal-04474526, HAL.
    • Handle: RePEc:hal:journl:hal-04474526
    DOI: 10.1088/1742-6596/1669/1/012004
    Note: View the original document on HAL open archive server: https://nantes-universite.hal.science/hal-04474526v1
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    Cited by:

    1. Gagliardi, Gabriele Guglielmo & Cosentini, Carlotta & Agati, Giuliano & Borello, Domenico & Venturini, Paolo, 2025. "Green hydrogen production via floating photovoltaic systems on irrigation reservoirs: An Italian case study," Renewable Energy, Elsevier, vol. 247(C).
    2. Taroual, K. & Nachtane, M. & Adeli, K. & Boulzehar, A. & Saifaoui, D. & Faik, A., 2026. "Marine renewable energy for hydrogen production: Advancing towards a sustainable future through technological, economic, and environmental frontiers– a review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 226(PB).
    3. Bühler, Lauritz & Scharf, Hendrik, 2025. "Green Hydrogen in the European Union – A large-scale assessment of the supply potential and economic viability," Applied Energy, Elsevier, vol. 401(PA).

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