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Hard bottom substrate monitoring Horns Rev offshore wind farm. Annual status report. 2004

Abstract

Elsam and Eltra have built the offshore demonstration wind farm at Horns Rev in the North Sea. Elsam is the owner and is responsible for the operation of the wind farm. Eltra is responsible for the connection of the wind farm to the national onshore grid. In the summer months of 2002, Elsam constructed the world's largest offshore wind farm at the Danish west coast. The wind farm is located 14-20 km into the North Sea, west of Blaevands Huk. The first wind turbine foundation was in place in March 2002 and the last mono-pile was in place in August 2002 for a total of 80. The construction work was completed with the last connecting cables sluiced down in September 2002. All the wind turbines were in production in December 2002. The expected impact from the wind farm will primarily be an alternation of habitats due to the introduction of hard bottom substrates as wind mono-piles and scour protections. A continuous development in the epifouling communities will be expected together with an introduction of new or alien species in the area. The indigenous benthic community in the area of Horn Rev can be characterised by infauna species belonging to the  More>>
Publication Date:
May 15, 2005
Product Type:
Technical Report
Report Number:
NEI-DK-4686
Resource Relation:
Other Information: Related to FORSKEL-6050; FORSKEL-6051; FORSKEL-6053 and FORSKEL-5478
Subject:
54 ENVIRONMENTAL SCIENCES; 17 WIND ENERGY; WIND TURBINES; OFFSHORE SITES; SUBSTRATES; MONITORING; ENVIRONMENTAL IMPACTS; BENTHOS; PLANTS; PROGRESS REPORT
OSTI ID:
20780426
Research Organizations:
Bio/consult as, Aabyhoej (Denmark)
Country of Origin:
Denmark
Language:
English
Other Identifying Numbers:
Other: Contract FORSKEL-5549; TRN: DK0601203
Availability:
Also available at http//:www.risoe.dk/rispubl/NEI/nei-dk-4686.pdf; Commercial reproduction prohibited; OSTI as DE20780426
Submitting Site:
DK
Size:
79 pages
Announcement Date:
Oct 10, 2006

Citation Formats

Leonhard, S B, and Pedersen, John. Hard bottom substrate monitoring Horns Rev offshore wind farm. Annual status report. 2004. Denmark: N. p., 2005. Web.
Leonhard, S B, & Pedersen, John. Hard bottom substrate monitoring Horns Rev offshore wind farm. Annual status report. 2004. Denmark.
Leonhard, S B, and Pedersen, John. 2005. "Hard bottom substrate monitoring Horns Rev offshore wind farm. Annual status report. 2004." Denmark.
@misc{etde_20780426,
title = {Hard bottom substrate monitoring Horns Rev offshore wind farm. Annual status report. 2004}
author = {Leonhard, S B, and Pedersen, John}
abstractNote = {Elsam and Eltra have built the offshore demonstration wind farm at Horns Rev in the North Sea. Elsam is the owner and is responsible for the operation of the wind farm. Eltra is responsible for the connection of the wind farm to the national onshore grid. In the summer months of 2002, Elsam constructed the world's largest offshore wind farm at the Danish west coast. The wind farm is located 14-20 km into the North Sea, west of Blaevands Huk. The first wind turbine foundation was in place in March 2002 and the last mono-pile was in place in August 2002 for a total of 80. The construction work was completed with the last connecting cables sluiced down in September 2002. All the wind turbines were in production in December 2002. The expected impact from the wind farm will primarily be an alternation of habitats due to the introduction of hard bottom substrates as wind mono-piles and scour protections. A continuous development in the epifouling communities will be expected together with an introduction of new or alien species in the area. The indigenous benthic community in the area of Horn Rev can be characterised by infauna species belonging to the Goniadella-Spisula community. This community is typical of sandbanks in the North Sea area, although communities in such areas are very variable and site specific. Character species used as indicators for environmental changes in the Horns Rev area are the bristle worms Goniadella bobretzkii, Ophelia borealis, Psione remota and Orbinia sertulata and the mussels Goodallia triangularis and Spisula solida. In connection with the implementation of the monitoring programme concerning the ecological impact of the introduction of hard substrate related to the Horns Rev Wind Farm, surveys on hard bottom substrates were initialised in March 2003 with monitoring conducted in September 2003 and March and September 2004. This report describes the results from surveys on hard substrates in 2004. (au)}
place = {Denmark}
year = {2005}
month = {May}
}