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Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
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https://doi.org/10.5194/wes-2019-101
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-2019-101
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: research article 24 Feb 2020

Submitted as: research article | 24 Feb 2020

Review status
A revised version of this preprint is currently under review for the journal WES.

Exploitation of the far-offshore wind energy resource by fleets of energy ships. Part B. Cost of energy

Aurélien Babarit, Simon Delvoye, Gaël Clodic, and Jean-Christophe Gilloteaux Aurélien Babarit et al.
  • LHEEA, Ecole Centrale de Nantes – CNRS, Nantes, 44300, France

Abstract. This paper deals with a new concept for the conversion of far-offshore wind energy into sustainable fuel. It relies on autonomous sailing energy ships and manned support tankers. Energy ships are wind-propelled ships that generate electricity using water turbines attached underneath their hull. Since energy ships are not grid-connected, they include onboard power-to-X plants for storage of the produced energy. In the present work, the energy vector is methanol.

In the first part of this study (Babarit et al., submitted), an energy ship design has been proposed and its energy performance has been assessed. In this second part, the aim is to estimate the energy and economic performance of the whole system. Thus, an energy and economic model has been developed which is presented in the paper. Results show that an initial FARWIND system could produce approximately 100,000 tonnes of methanol per annum (approximately 550 GWh per annum of chemical energy) at a cost in the range 150 to 325 €/MWh, and that FARWIND-produced methanol could compete with gasoline on the EU transportation fuel market in the long term.

Aurélien Babarit et al.

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Status: final response (author comments only)
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Aurélien Babarit et al.

Aurélien Babarit et al.

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Latest update: 01 Jun 2020
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Short summary
This paper addresses the topic of far-offshore wind energy exploitation. Far-offshore wind energy exploitation is not feasible with current technology because grid-connection cost, installation cost and O&M cost would be prohibitive. An enabling technology for far-offshore wind energy is the energy ship concept, which has been described, modelled and analyzed in a companion paper. This paper provides a cost model and cost estimates for an energy system based on the energy ship concept.
This paper addresses the topic of far-offshore wind energy exploitation. Far-offshore wind...
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