Preprints
https://doi.org/10.5194/wes-2018-53
https://doi.org/10.5194/wes-2018-53

  06 Aug 2018

06 Aug 2018

Status: this preprint has been withdrawn by the authors.

Towards the North Sea wind power revolution

Jens N. Sørensen1 and Gunner C. Larsen2 Jens N. Sørensen and Gunner C. Larsen
  • 1DTU Wind Energy, Fluid Mechanics, 2800 Lyngby, Denmark
  • 2DTU Wind Energy, Wind Turbine Loads and Control, 4000 Roskilde, Denmark

Abstract. The present work assesses the potential of a massive exploitation of offshore wind power in the North Sea by combining a meteorological model with a cost model that includes a bathymetric analysis of the water depth of the North Sea. The overall objective is to assess if the wind power in the North Sea can deliver the total consumption of electricity in Europe and to what prize as compared to conventional onshore wind energy. The meteorological model is based on the assumption that the exploited area is so large, that the wind field between the turbines is in equilibrium with the atmospheric boundary layer. This makes it possible to use momentum analysis to determine the mutual influence between the atmospheric boundary layer and the wind farm, with the wind farm represented by an average horizontal force component corresponding to the thrust. The cost model includes expressions for the most essential wind farm cost elements, such as costs of wind turbines, support structures, cables and electrical substations, as well as operation and maintenance as function of rotor size, interspatial distance between the turbines, and water depth. The numbers used in the cost model are based on previous experience from offshore wind farms, and is therefore somewhat conservative. The analysis shows that the lowest energy cost is obtained for a configuration of large wind turbines erected with an interspatial distance of about eight rotor diameters. A part of the analysis is devoted to assessing the relative costs of the various elements of the cost model in order to determine the components with the largest potential for reducing the cost price. As an overall finding, it is shown that the power demand of Europe, which is 0.4 TW or about 3500 TWh/year, can be fulfilled by exploiting an area of 190.000 km2, corresponding to about 1/3 of the North Sea, with 100.000 wind turbines of generator size 13 MW on water depths up to 45 m at a cost price of about 7.5 €cents/kWh.

This preprint has been withdrawn.

Jens N. Sørensen and Gunner C. Larsen

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Jens N. Sørensen and Gunner C. Larsen

Jens N. Sørensen and Gunner C. Larsen

Viewed

Total article views: 1,730 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
1,355 312 63 1,730 77 80
  • HTML: 1,355
  • PDF: 312
  • XML: 63
  • Total: 1,730
  • BibTeX: 77
  • EndNote: 80
Views and downloads (calculated since 06 Aug 2018)
Cumulative views and downloads (calculated since 06 Aug 2018)

Viewed (geographical distribution)

Total article views: 1,376 (including HTML, PDF, and XML) Thereof 1,363 with geography defined and 13 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Latest update: 15 Sep 2021
Download

This preprint has been withdrawn.

Short summary
The work assesses the potential of a massive exploitation of offshore wind power in the North Sea by combining a meteorological model with a cost model including a bathymetric analysis of the water depth of the North Sea. As an overall finding, it is shown that the electrical power demand of Europe can be fulfilled by exploiting an area corresponding to about 1/3 of the North Sea with 100.000 wind turbines of generator size 13 MW on water depths up to 45 m to a cost price of about 7.5 €cents/kWh.