Anholt Offshore Wind Farm - Case Study
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Anholt Offshore Wind Farm case study
Optimisation - cost reduction
20 Nov. 2012Kim AndersenDirectorOffshore
Claus KramhftDesign ManagerOffshore
mth.com/offshore7 November 20121
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Kim Andersen
Director
Claus Kramhft
Design Manager
+45 2270 9547
+45 2270 9823
2 27 November 2012
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MT Hjgaard Offshore has installed 1/3 of the
ncs un ee an ser ng am oan o
Lynn & InnerRhyl Flats Burbo BankRobin Rigg
Middel-grundenHorns RevKentish Flats Vindeby
3 27 November 2012
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MT Hjgaard Offshore has installed 1/3 of the
Sheringham Shoal (2010)
Robin Ri 2008
Lincs (2011-2012)
Anholt (2012)
Middelgrunden (2000)
Burbo Banks (2006)
Rh l Flats 2008
Gunfleet Sands (2008-2009)
Kentish Flats (2004)
Vindeby (1992)
Horns Rev (2002)
Up until today we have a track record of 631 offshore foundations
corresponding to 2GW wind power
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en : nergy n oOffshore A/S
Main contract
Scope: supply & installation of 111foundations
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AnholtOffshoreWind Farm
WTG: Siemens 3.6 MW GrenJutland
Total capacity: 400 MW
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Grout connection
Transition piece(weight 200-300 t)
Monopile(weight 400-650 t)
Scour protection- if necessary
J-tube
27 November 20126
(cable conduit)
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Players in the value chain need to approach allphases of the development of an offshore wind farm
in an industrialised way
27 November 201210
ource: enewa e , orecast o uture costs an ene ts, une
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The tender phase accounts for approximately the sameamount of time as that spent on the planning, production
and installation phase
Time spent onpreparation of thetender by client
Tender phase
12 months
Planning,production,
installation phase
More time allocated to the lannin roductionand installation phase would ensure a moreoverall robust and effective project.
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We handle foundation projects from engineering to installation- and ossibl be ond
InstallationOperation &
maintenanceProcurement Installation
Substation Cables Turbines
ConstructionEngineering
QHSE
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oss e o op m se es gn, a r ca on aninstallation
Incorporation of practical experience in theinstallation concept
Better and more robust solutions
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encourage innovation
Design &
Engineering
Fabrication Installation
27 November 201213
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Our proven track record of innovating new solutions
Grout packer Levelling system Pile gripper Cable protectionsystem
Combined noisereduction and guidanceconceptUK Patent Application No. 1206596.7
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Operation & Maintenance Tendering
ProcurementQHSE
DesignInstallation
CertificationLogistics
PlanningEngineering
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Anholt Offshore Wind Farm case studyEffective and safe installation
20 Nov. 2012
Claus KramhftDesign Manager
mth.com/offshore27. november 201216
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anu ac urer: a n us r es
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OD transition piece: 5 - 5.65 m
Conical grouted connection with double grout sealand grout inlet contingencies
Water depths: var. 15.5 18 m
MP installation vessel: HLV Svanen
TP installation vessel: HLV Jumbo Javelin
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Mock-u of transitionpiece. Clash check andfabrication improvements
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Thorough preparation forinstallation. Installation aspects
anal sed. Em lo eracknowledgement
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Second eneration lu sfor more severe seastates. Recycling of plugs
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The MP was towed tosite for installation. Feedto main vessel
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Offshore installation during winter:
Equipment used for MP installationare es gne or w nter env ronment.Special oils and consumables areused for hydraulic systems.Standby icebreaker assistance.
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The MP was installed by
Trunnions for fast up-ending and pile retrieval
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Full scale test of internalunderwater MP cutting tool
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The TP installation vessel HLVJumbo Javelin was capable ofcarrying 9 TPs on each load
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Large installation guides forsea fastening, more severesea states and easierinstallation
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The TP is clamped during
grouting and grout curing foror zon a , ors ona anoverturning moment capacity toallow for increased sea states
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All 111 foundationsinstalled on time
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The next generation has already started
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MonopileGravity Jacket
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s a s ng an secur ng ong-time relationships betweencustomers and suppliers
Integrated cooperation acrossthe value chain
Price setting in relation to share.
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Offshore
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