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

    [email protected]

    +45 2270 9547

    [email protected]

    +45 2270 9823

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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

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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

    -

    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

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    (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

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    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

    -

    encourage innovation

    Design &

    Engineering

    Fabrication Installation

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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

    -

    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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