Offshore windenergy in the German EEZ - the authority‘s ...
Transcript of Offshore windenergy in the German EEZ - the authority‘s ...
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Offshore windenergy in the
German EEZ - the authority‘s
perspective
7 October 2008
Workshop "The Future Ocean" 2
Offshore Windenergy in the German EEZ
TOPICS
• Environmental Impact Assessment
• Design Basis
• Research at Alpha Ventus (RAVE)
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Offshore Windenergy in the German EEZ
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Environmental Impact Study:
• Soil (Sediments)
• Water
• Air/Climate
• Benthos
• (Demersal) Fish
• (Resting and Migrating) Birds
• Marine Mammals (Harbour Porpoise, ...)
• Cultural Heritage (Wrecks, Archaeol. Sites)
• Marine Landscape (Visibility from the Shore)
• Cumulative Effects
„Artenschutzrechtliche Prüfung“
„FFH-Verträglichkeitsprüfung“
Foto:
Mammal
Marine
Mammals
FishBenthos
Birds
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StUK3
Members of the Expert Group:
• Nature Protection Agencies
• Environmental Bureaus (Companies)
• Universities, Research Institutions
Requirements for:
• Baseline Study
• Monitoring - Construction Phase
• Monitoring - Commission Phase
Offshore Windenergy in the German EEZ
http://www.bsh.de/de/Produkte/Buecher/Standard/index.jsp
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Construction Phase:
• underwater noise (ramming)
• turbidity, scouring
• loss of habitat (temporal)
• etc.
Commissioning Phase:
• underwater noise (turbine)
• „versiegelung“, scouring
• habitat alteration
• collision of birds with turbines
• etc.
Decommissioning Phase:
• underwater noise
• turbidity
• etc.
Offshore Windenergy in the German EEZ
IMPACTS (examples):
Ramming of monopile (FINO 3)
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Design Basis
• metocean data
• results of soil site investigation
• data on marine growth
• ...
• loads, load assumptions
• methods
• procedures
Offshore Windenergy in the German EEZ
http://www.bsh.de/de/Produkte/Buecher/Standard/index.jsp
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Offshore Windenergy in the German EEZ
Members of the Expert Group:
• Geotechnical Bureaus
• Authorities
• Universities, Research Institutions
Requirements for:
• Geological Soil Site Investigations
• Geotechnical Soil Site Invcestigations
http://www.bsh.de/de/Produkte/Buecher/Standard/index.jsp
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Reserach at Alpha Ventus
(RAVE)
• oceanography
• meteorology
• geology
• ecology
• technological developments
Offshore Windenergy in the German EEZ
Alpha Ventus
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RAVE - Geology (BSH)
How deep is the maximum local and global scour
around the different foundations?
How do turbines affect the overall sediment
dynamics in an offshore wind farm?
How do sediment dynamics affect the
geotechnical properties of the upper seabed?
What is the effect between marine growth,
scouring and benthic community structure?
Offshore Windenergy in the German EEZ
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RAVE - Ecology (Coordination by BSH)
Will there be a habitat loss for marine mammals
and passage migrants?
What is the effect of construction and operational
noise on marine mammals and fish?
Will there be a changein community structure for
fish and benthos by introduced artificial reefs?
Will there be any avoidance of the windfarm for
migratory birds?
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Conclusion
Ambitious approval procedure w.r.t. to offshore
windfarms
Introduction of technical standards
EIA of high quality
BSH is involved in the RAVE project to verify and
improve the requirements of StUK3 and provide
new data for the developers of offshore
windfarms.
Offshore Windenergy in the German EEZ