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Offshore Wind Farm Projects
Ian Mould
Business Development Manager - Renewables
4th December 2012
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Agenda
• Alstom and Alstom Grid in the UK
• Projects delivered to date - Barrow, Robin Rigg, Ormonde, SheringhamShoal, German projects, lessons learnt so far
• Why we need to go for HVDC in Round 3 and the technical challenges that creates
• HVDC demonstrator and new HVDC factory at Stafford
• Conclusions
• Any Questions
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Rail transport infrastructure -Alstom makes 1 metro in 4 and 1 tram in 4
Alstom Group : Four main activities
Power generation infrastructure - Alstomsupplies major equipment in 25% of the worldwide installedpower generation capacity
Power transmission infrastructureStrong positions in key markets and technologies (Network Management, GIS, HVDC, Disconnectors, Instrument Transformers…)
Renewable power technologies – Hydro, biomass, wind, geothermal, tidal, solar, wave
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Global industrial footprint to enable global competitiveness
Over 90 manufacturing and engineering sites worldwide
Main Manufacturing SitesMain Engineering SitesR&D Competence CentresTechnology Centres
Moscow, Russia
Agreement for cooperation in
R&D
Gebze, Turkey
New service facility
Charleroi, Canada,
New Disconnectors
factory
Canoas, Brazil,
extension of the power
transformer factory
Stafford, UK
New service and
Technical Institute facility
Shanghai, China
China R&D
Technology Center
Chennai, Noida, India
Technical Institute
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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UK Sites & Employees
Glasgow
Carlisle
Preston
Manchester
Warrington
Knutsford
Liverpool
Chester
Crewe
Wolverhampton
Birmingham
Stafford
Pembroke
Cwmbran
Maesgwyn
Langage
Newcastle
York
Staythorpe
Derby
Ashby-de-la-Zouch
Borehamwood
Grain
Hoo
Corporate
Power
Transport
Grid
Project sites
Dublin
Whitelee
Rugby CHQ
London
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Alstom Grid: The United Kingdom
• A leader in electrical transmission with a ~25% UK market share
• Over €370M in Sales 2010/11
• ~1300 UK based employees
• Complete UK coverage
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Why do we need substations at all?
Power transformers
SwitchgearProtection and control
Compensation systems
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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132kV
400V400V400V
11kV11kV
400V400V400V
11kV11kV
Offshore Windfarm connected with HV AC
132kV
33kV
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Projects Delivered to Date – UK and Germany
Barrow90MW2006
Robin Rigg2 x 90MW
2009
Ormonde150MW2011
Alpha Ventus60MW
2008
Sheringham Shoal2 x 150MW2011
Total = 780 MW
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Projects under construction – Germany
Borkum West II400MW
Global Tech 1400MW
Baltic II288MW
Meerwind288MW
MEG I400MW
Gode Wind II252MW
Veje Mate400MW
Total = 2.4 GW
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Sheringham Shoal Offshore substations– ready for load out March 2011
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Sheringham Shoal Offshore substations– load out March 2011
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Sheringham Shoal Offshore substations– installation May 2011
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Sheringham Shoal- View from a PTV, summer 2012
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Connection point for Sheringham ShoalSalle 132kV Substation
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Lessons learnt
• Design co-ordination with topside designer – multilevel structures
• Access
− Tides− Weather windows− Vessels− Helicopters
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Why do we need expensive HVDC systems?- subsea cable
Copper conductorFibre optic comms
Insulation
Protective steel armour
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Why do we need expensive HVDC systems?- AC Cable
Offshore Generation Onshore
Demand
CopperConductor
InsulatorXLPE(plastic)
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Why do we need expensive HVDC systems?- DC Cable
Offshore ConverterStation
Onshore ConverterStation
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HVDC SystemsComparative HVDC & AC Transmission Costs
Cost
DCConverterStations
ACStations
DC
AC
Break EvenDistance
800kmOverheadLine
100km ?SubmarineCable
TransmissionDistance
Lines & Stations
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132kV
400V400V400V
11kV11kV
400V400V400V
11kV11kV
Offshore Windfarm connected with HV DC
33kV
300kV DC
< 100km
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Voltage Source Converters (VSC)
• Voltage Source Converters:
− Smaller footprint than older LCC technology making offshore applications more practical (although still large installations)
− Uses industry standard transistors (as used in railway locomotives etc)− Medium current achievable (limited by transistor technology)− High voltage achievable (voltage limited by available cable technology)− DC Grids more easily achieved, although switching is still a challenge− Conversion losses ~1.0% (total per station)
DC transmission
line
Q1 Q2P
VSC VSC
Station 1 Station 2
UC1 UC2
IC1
Network
1
Network
2
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Stafford - VSC Demonstrator
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Stafford - New Facilities for VSC Projects
VSC Manufacturing Facilities Complete March 2012
0ffice RelocationComplete 19th April 2012
Commencement of WorksOctober 3rd 2011
ALSTOM © 2012. We reserve all rights in this document and in the information contained therein. Reproduction, use or disclosure to third parties without express authority is strictly forbidden.
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Conclusions and Questions
• Conclusions− AC solutions now established− Still leaning in the offshore
environment – corrosion, access, logistics etc
− DC can be done but true costs not known – new technology in a hostile and inaccessible environment
− More projects need to be released from planning stage to allow the industry to develop
• Any Questions?
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