RT Journal Article T1 Current facts about offshore wind farms A1 Madariaga, A. A1 De Alegría, I. Martínez A1 Martín, J. L. A1 Eguía, P. A1 Ceballos, S. AB This paper reviews offshore wind projects with a wide perspective. The current situation of the offshore wind market is presented, pointing out the countries leading the process in terms of installed capacity and in terms of technological leadership. Feasibility studies of alternative offshore wind farms (OWFs) are interesting not only in relation to the business but in relation to the techno-economical analyses that engineering researchers need to do. Details about the average energy yield assessment, the costs and the price for the purchased energy are commented on, as key elements of those feasibility studies. The higher cost of renewable energy sources of electricity (RESE) when compared with conventional sources, demands appropriate policy support. The European regulatory framework and the support schemes established by European Member States are presented, as well as the role that different transmission system operators (TSOs) are playing at the moment. Finally, most of the OWFs currently operating are presented, analysing the technical characteristics of their electric subsystems: the wind energy conversion systems (WECSs) transforming the kinetic energy of the wind into electricity, the collector system (CS) gathering the power output of all the turbines to a central collection point (CCP) and the transmission system (TS) taking that power to the onshore main grid. SN 1364-0321 YR 2012 FD 2012-06 LK https://hdl.handle.net/11556/4392 UL https://hdl.handle.net/11556/4392 LA eng NO Madariaga , A , De Alegría , I M , Martín , J L , Eguía , P & Ceballos , S 2012 , ' Current facts about offshore wind farms ' , Renewable and Sustainable Energy Reviews , vol. 16 , no. 5 , pp. 3105-3116 . https://doi.org/10.1016/j.rser.2012.02.022 NO This work has been supported by Ministry of Economy and Competitiveness of Spain, within the project ENE2010-19187-C03-01, and by the University of the Basque Country (UPV/EHU), within the Training and Research Units UFI11/16 and UFI11/28. DS TECNALIA Publications RD 28 jul 2024