Offshore Wind Power Case Study

In addition to the report Offshore Wind Energy in the North Sea Region - or in short the Quick Scan - the workstream planning and participation will have a deeper look into offshore planning and realisation processes of each of the members states involved in the POWER project. The objective of the "Case Study of Offshore Wind Farms" is to analyse experiences and lessons learned by developers of offshore wind farms in order to generate recommendations about “good planning and realisation processes” in the North Sea Region. The following best practice project examples were selected:

  • Scroby Sands - UK
  • Greater Gabbard - UK
  • Thornton Bank - Belgium
  • Egmond aan Zee - The Netherlands
  • Borkum West - Germany
  • Butendiek - Germany
  • Horns Rev - Denmark
  • Nysted - Denmark

The study was accomplished by DENA – Deutsche Energie-Agentur (G), Deutsche WindGuard (G), and the University of Groningen (NL) under responsibility of the Senator for Construction, Environment & Transport, Free State of Bremen (G).

This paper presents a multi-criteria selection approach for offshore wind sites assessment. The proposed site selection framework takes into consideration the electricity network’s operating security aspects, economic investment, operation costs and capacity performances relative to each potential site. The selection decision is made through Analytic Hierarchy Process (AHP), with an inherited flexibility that aims to allow end users to adjust the expected benefits accordingly to their respective and global priorities. The proposed site selection framework is implemented as an interactive case study for three Baltic States in the 2020 time horizon, based on real data and exhaustive power network models, taking into consideration the foreseen upgrades and network reinforcements. For each country the optimal offshore wind sites are assessed under multiple weight contribution scenarios, reflecting the characteristics of market design, regulatory aspects or renewable integration targets.

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