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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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Workshop "The Future Ocean" 3

Offshore Windenergy in the German EEZ

Workshop "The Future Ocean" 4

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

Offshore Windenergy in the German EEZ

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Workshop "The Future Ocean" 5

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

Workshop "The Future Ocean" 6

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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Workshop "The Future Ocean" 7

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

Workshop "The Future Ocean" 8

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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Workshop "The Future Ocean" 9

Offshore Windenergy in the German EEZ

Workshop "The Future Ocean" 10

Reserach at Alpha Ventus

(RAVE)

• oceanography

• meteorology

• geology

• ecology

• technological developments

Offshore Windenergy in the German EEZ

Alpha Ventus

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Workshop "The Future Ocean" 11

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

Workshop "The Future Ocean" 12

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?

Offshore Windenergy in the German EEZ

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Workshop "The Future Ocean" 13

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