POWER TRANSMISSION –SERVICES RELATED TO WIND FARMSRamboll provides full-range services related to wind farm integration in the power system.

As one of the largest internationalconsultancies in northern Europe,Ramboll covers all engineeringdisciplines within power transmission needed when establishing grid connection for off- or onshore wind farms.We are familiar with all aspects ofproject management for large orcritical projects, and we possess allthe required competences in-house,enabling us to quickly present alternatives or assistance to the client and deal with any emerging issues.

Large and small scaleRamboll has provided services forlarge and small scale wind farmprojects, both as client’s engineerand as engineering consultant. Wecover all project phases from basicdesign through detailed design andtendering, to construction and onto operations and maintenance.Experience and competencesIn relation to grid connection ofoffshore or onshore wind farms,Ramboll offers its services withinthe fields of:• Offshore substations

• Onshore substations• Electrical system studies• Overhead lines• HV cables.

Multidisciplinary servicesIn the field of power transmission,Ramboll offers multidisciplinaryservices within mechanical designand civil works as well as electricaldesign including instrumentationand control.

A substation enables wind powerto be transformed and distributedover long distances minimising thepower loss and cost of distribution.Ramboll has a broad internationalexperience in optimal planning anddesign of offshore and onshoresubstations in different operatingenvironments.

Solutions for compact sitesWe are also well-versed in workingwith compact substation sites.These sites often require application of Gas Insulated Switchgear (GIS), which is one of the key competences for Ramboll.

Civil worksAnother speciality is preparationand construction of the civil worksin substations. We have won manyawards, based on our ability toadapt structures to the needs ofour clients in close collaborationwith architects. Ramboll is frequently chosen for our focus on minimising the environmental impact while keeping high standards in design and execution.For Ramboll, safety at the worksite is of highest importance, andwe integrate our Health, Safety andEnvironment (HSE) services andknowhow into the planning, thuscontributing to make the site a safeplace for all who work there.

For further information, please visit http://www.ramboll.com or contact us directly: CONTACTJohn AmmentorpRamboll EnergyTel +45 51616380JONA@ramboll.com

RAMBOLL ENERGY

On- or offshore substations

Ramboll has more than 25 years ofexperience in the complete designof onshore and offshore substations. We are experienced in harsh operating environments, adjusting the design accordingly. Our services include:• Electrical layout, grid connection• Equipment specification

(switchgear, transformers, LV systems)

• Earthing system• Relay and control systems,

communication infrastructure• Site supervision, commissioning.

For onshore substations our designalso covers:• Overhead line and cable

connections• Buildings, constructions, utilities• Foundations, oil sumps.

For offshore constructions, Rambollprovides competent supervisionand commissioning teams to ensurea fully tested and operationalplatform, before load out. We alsodeliver services for communicationinfrastructure, vessel traffic monitoring systems, people registration and offshore people tracking.

Electrical system studies

Integration of new wind farms aswell as upgrade/extension of windpower grid connection requiresinvestigation of the impact on theexisting power system.

We offer a wide range of simulationstudies and analyses, i.e.:• Adaptive power system modelling• Load flow and short circuit

studies• System stability studies• Evaluation and power system

optimisation• Financial and reliability analyses• Electricity grounding studies• Relay settings / selectivity studies• Harmonic analysis etc.

Different areas require differentapproaches and Ramboll focuseson the client and the projectspecific demands, applying theoptimal simulation tool – e.g. PowerFactory, Paladin Design Base, ETAP,and Febdok.

Overhead lines

Planning an overhead line routingis an environmental and aestheticchallenge when lines pass throughvaluable rural districts, urban areasor sensitive nature. We provide:• Overall line planning incl.

environmental and aesthetic aspects

• Dialogue with authorities and the general public

• Detailed overhead line routing• Detailed design of lines

(electromechanical, towers, foundations)

• Site investigations and mapping• Advanced numerical modelling• Inspection and commissioning.

HV cablesWe have more than 30 years of experience with HV cable connections to on- and offshore wind farms, comprising onshore and subsea cables, wind farm array cables, etc.Ramboll’s services include:• Detailed cable route planning• Geotechnical surveys• Coordination with utility owners

and stakeholders• Electrical design of cable systems

incl. joints and terminations• Installation and commissioning.

BINHAI H2400MW OFFSHORE WIND FARMSYSTEM STUDIES

CUSTOMERChina Power Investment Corporation LOCATION Binhai, ChinaPERIOD2015-2016SERVICE PROVIDEDOptimisation of inter-array, export cable and assessment of HV and MV equipment.

KILGALLIOCH240MW ONSHORE WIND FARMLOAD FLOW AND DYNAMIC STUDIES

CUSTOMERIberdrola Engineering and Construction LOCATION Kilgallioch, ScotlandPERIOD2016SERVICE PROVIDEDGrid connection assessments Dynamic and transient stability analysis.

SANDBANKOFFSHORE WIND FARM DETAILED DESIGN OF TRANSITION PIECE

CUSTOMERSandbank Offshore Wind GmbH LOCATION North Sea, GermanyPERIOD2013-2015SERVICE PROVIDEDDetailed design of electrical equipment e.g. earthing and bonding, LV equipment and cables, MCBs, UPS, light, warning systems, MV cable routing.

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