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Offshore wind farm Bockstigen - installation and operation experience

Abstract

The first Swedish offshore wind farm Bockstigen is operating since March 1998 near the coast of Gotland. It was built as a demonstration project by the Swedish wind farm developer Vindkompaniet, the Danish wind turbine manufacturer Wind World and the British offshore construction company Seacore and partly funded under the EU-THERMIE program. Bockstigen is the fourth offshore wind farm world-wide. While at previous wind farms the main emphasis laid on the demonstration of the technical feasibility of offshore wind energy utilisation, Bockstigen was aimed at demonstrating its economic viability. A number of innovative concepts have been employed: Drilled monopile foundations were used to save costs. A new construction method has been applied making use of a jack-up barge. A new control system for the turbines and the whole wind farm was developed, which controls the maximum power output, the flicker and the reactive power consumption depending on online measurements of the actual grid state. These new developments have been implemented successfully. A substantial cost reduction compared to previous offshore projects could be achieved. (au)
Authors:
Lange, B; [1]  Aagaard, E; Andersen, P E; Moeller, A; [2]  Niklasson, S; Wickman, A [3] 
  1. Risoe National Lab., Wind Energy and Atmospheric Physics Dept., Roskilde (Denmark)
  2. Wind World af 1997 A/S, Noerresundby (Denmark)
  3. Vindkompaniet, Degerhamn (Sweden)
Publication Date:
Mar 01, 1999
Product Type:
Conference
Report Number:
RISO-R-1114(EN); CONF-990314-
Reference Number:
SCA: 170600; PA: DK-99:001385; EDB-99:087303; SN: 99002098291
Resource Relation:
Conference: EWEC`99. European wind energy conference, Nice (France), 1-5 Mar 1999; Other Information: PBD: Mar 1999; Related Information: Is Part Of Contributions from the Department of Wind Energy and Atmospheric Physics to EWEC `99 in Nice, France; Larsen, Gunnar C.; Westermann, Kirsten; Noergaard, Per [eds.]; PB: 256 p.
Subject:
17 WIND ENERGY; WIND TURBINE ARRAYS; OFFSHORE SITES; SWEDEN; DEMONSTRATION PLANTS; ECONOMICS; PERFORMANCE; CONSTRUCTION
OSTI ID:
679603
Research Organizations:
Risoe National Lab., Roskilde (Denmark). Wind Energy and Atmospheric Physics Dept.
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: ON: DE99747779; ISBN 87-550-2542-0; TRN: DK9901385
Availability:
OSTI as DE99747779
Submitting Site:
DK
Size:
pp. 35-39
Announcement Date:

Citation Formats

Lange, B, Aagaard, E, Andersen, P E, Moeller, A, Niklasson, S, and Wickman, A. Offshore wind farm Bockstigen - installation and operation experience. Denmark: N. p., 1999. Web.
Lange, B, Aagaard, E, Andersen, P E, Moeller, A, Niklasson, S, & Wickman, A. Offshore wind farm Bockstigen - installation and operation experience. Denmark.
Lange, B, Aagaard, E, Andersen, P E, Moeller, A, Niklasson, S, and Wickman, A. 1999. "Offshore wind farm Bockstigen - installation and operation experience." Denmark.
@misc{etde_679603,
title = {Offshore wind farm Bockstigen - installation and operation experience}
author = {Lange, B, Aagaard, E, Andersen, P E, Moeller, A, Niklasson, S, and Wickman, A}
abstractNote = {The first Swedish offshore wind farm Bockstigen is operating since March 1998 near the coast of Gotland. It was built as a demonstration project by the Swedish wind farm developer Vindkompaniet, the Danish wind turbine manufacturer Wind World and the British offshore construction company Seacore and partly funded under the EU-THERMIE program. Bockstigen is the fourth offshore wind farm world-wide. While at previous wind farms the main emphasis laid on the demonstration of the technical feasibility of offshore wind energy utilisation, Bockstigen was aimed at demonstrating its economic viability. A number of innovative concepts have been employed: Drilled monopile foundations were used to save costs. A new construction method has been applied making use of a jack-up barge. A new control system for the turbines and the whole wind farm was developed, which controls the maximum power output, the flicker and the reactive power consumption depending on online measurements of the actual grid state. These new developments have been implemented successfully. A substantial cost reduction compared to previous offshore projects could be achieved. (au)}
place = {Denmark}
year = {1999}
month = {Mar}
}