Journal cover Journal topic
Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
Journal topic

Journal metrics

CiteScore value: 0.6
h5-index value: 13
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  04 May 2020

04 May 2020

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

Potential of load and O&M costs reductions of Multi Rotor System for the south Baltic Sea

Maciej Karczewski1, Piotr Domagalski1, Arnoldus van Wingerde2, Bernhard Stoevesandt2, Peter Jamieson3, and Lars Roar Saetran4 Maciej Karczewski et al.
  • 1WindTAK sp z o.o. [Ltd], Wroblewskiego 38A, 93-578 Lodz, Institute of Turbomachinery, Lodz University of Technology, Wolczanska 219/223, Lodz 90-924, Poland
  • 2IWES Fraunhofer, am Seedeich 45, 27572 Bremerhaven, Germany
  • 3University of Strathclyde, Royal College Building, 204 George Street, Glasgow G1 1XW, United Kingdom
  • 4Department of Energy and Process Engineering, NTNU Trondheim, Kolbjørn Hejes vei 2, 7491 Trondheim, Norway

Abstract. Many coastal regions in Norway, Spain, Portugal, Japan or the United States are comprised of large water depths (> 50 m) making the installation of typical bottom-fixed off-shore wind turbines very difficult and expensive. This is the reason why the floating wind turbines (FOWT) are a promising solution able to exploit the high energy potential contained in these regions. The Advanced Multi-Rotor Turbine for Deep Water Off-shore Energy (AMRowe) has been undertaken to design and develop a cost–competitive, innovative floating Polish multi rotor system, aiming at the optimal usage of European off-shore wind potential. In the article, a prospective deep off-shore location in the south Baltic Sea is identified. The authors built a cost model to prove its superiority over the sites already commissioned by the Polish government. A set of metocean conditions tallied for a 50-year period is used to assess performance of the proposed multi rotor floating wind turbine and to benchmark it against a single rotor 5 MW baseline turbine. The typical load cases are also investigated to observe impact on a single rotor blade in an multi-rotor arrangement in order to begin search for the key design drivers.

Maciej Karczewski et al.

Interactive discussion

Status: final response (author comments only)
Status: final response (author comments only)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

Maciej Karczewski et al.

Maciej Karczewski et al.


Total article views: 442 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
259 136 47 442 38 40
  • HTML: 259
  • PDF: 136
  • XML: 47
  • Total: 442
  • BibTeX: 38
  • EndNote: 40
Views and downloads (calculated since 04 May 2020)
Cumulative views and downloads (calculated since 04 May 2020)

Viewed (geographical distribution)

Total article views: 321 (including HTML, PDF, and XML) Thereof 321 with geography defined and 0 with unknown origin.
Country # Views %
  • 1



No saved metrics found.


No discussed metrics found.
Latest update: 23 Sep 2020
Publications Copernicus
Short summary
The paper presents a concept of a multi-rotor system as a floating off-shore wind turbine. The results show that it may be an alternative to conventional wind turbines and even be cheaper in a long run, thus lowering the cost of energy to consumers. It may also solve technological barriers. The motivation for research was the idea of providing a technology vision for regions, where certain local supply chain can be employed to revitalize the shipyard industry while using renewable energy.
The paper presents a concept of a multi-rotor system as a floating off-shore wind turbine. The...