Environmental monitoring program at Offshore Wind farm Egmond aan Zee
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Transcript of Environmental monitoring program at Offshore Wind farm Egmond aan Zee
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Environmental monitoring program at Offshore Wind farm Egmond aan Zee
SenterNovem Neeltje Muselaers The Netherlands NoordzeeWind Henk Kouwenhoven The Netherlands
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Contents
The project Monitoring program Results on birds Results on marine mammals Results on public opinion Organizational setup Lessons learned Conclusions
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Main project data
36 Vestas 3 MW V90 wind turbines 1 meteo mast, 116 m high Hub height 70 m, rotor diameter 90 m Monopiles with scour protection Water depth 20 m 10 – 18 km off shore 3 x 34 kV cables to the shore 34/150 kV substation on shore Renewable electricity for +/-
100.000 house holds Design life 20 years In operation since 1/1/2007
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Monitoring program
Impact of wind farm on marine environment:
•Birds
•Sea mammals, fish and benthos
•Societal aspects
•Shipping and safety
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Results on birds
Collision not measured Feasibility and scouting studies ongoing
No effect of construction was seen Piling during season of low bird intensity
2 years monitoring (surveys and radar) 6 Boat surveys / year / smart timing Horizontal and vertical radar (24/7)
No large effects on local birds Stepping stone for Great Cormorants
Deflection of flight paths for most species Distance 200 m to 3200 m
Research is ongoingduring 2009
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Results on marine mammals
Harbour porpoise occurrence Base line: 2003 Operations phase: 2007 - 2009
Acoustic measurement 8 TPOD’s in and around OWEZ
Significant more acoustic activity in OWEZ compared to ref. area’s
Increasedprey occurrence?
0
10
20
30
40
50
60
baseline operation
Clic
k P
PM
(clic
ks/m
in)
.
Reference area
Impact area
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Public opinion
4 Years of opinion surveys: 2005 (before construction) 2006 (during construction) 2007 – 2008 (after construction)
4 Interest groups: Resident coastal towns Business coastal towns Dutch holiday makers German holiday makers All within +/- 20 km from
Egmond aan Zee
Project is visible from the beach
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Final results on public opinion (2008)
75% in favor of off shore wind 25% thinks wind off shore is no problem for birds
or sea currents 50% of the residents say visible wind farm effects
experience of the sea and the beach German holiday makers < 25% (2005: 66%)
30% feel view is disruptive German holiday makers 10%
80% of residents and holiday makerswill visit the beach as often as before
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Ministry of Economic affairs (EZ)
NoordzeeWind
Imares et al (environment)
ECN et al (technology)
IntomartGfK (public opinion)
Organizational set up
Reference group
Nuon
Shell
SenterNovem and Waterdienst (mgt
monitoring on behalf of EZ)
: Contract
: Important relation
Ministry of Transport, Public works and Water
management (RWS)
: Environmental permit
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Environmental monitoring in Public Private Partnership is feasible
Monitoring and commercial operation go together Take into account different dynamics of industry
and government Define monitoring in terms of learning objectives
Carefully consider required level of detail Leave room to adapt methods as result of advancing
knowledge and development Standardization of research methods will support
interpretation of results Create single line of responsibility and approach
with governmental bodies that are involved
Lessons learnt
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Monitoring so far executed successfully No LTI’s A lot of data and reports available
Indications of limited influence of operation of OWEZ on environment
Bird collision monitoring still to be executed Public acceptance showed continuously increasing
trend since 2005 OWEZ monitoring does not answer all questions
Outcomes generate new ones Cumulative effects
Reports available on websites of NoordzeeWind and SenterNovem
Conclusions
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Questions?
Project Organisation MEP-NSW
www.offshorewind.nl
NoordzeeWind
www.noordzeewind.nl
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