COST REDUCTION IN OFFSHORE WIND - SINTEF · PDF fileSea Logistics. Divex LARS ... Transfer...
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COST REDUCTION IN OFFSHORE WIND
What are the potential and why must R&D focus on it?By Jørgen R. Krokstad
Industry meets Science – 20 September 2012
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Content Definition of LCOE and status within the industry
The potential of cost reduction
OWA – a R&D mean to accelerate technology development against cost reduction
Examples of Statkraft use of LCOE for research project initiation
Some questions for the audience
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Content Definition of LCOE and status within the industry
The potential of cost reduction
OWA – a R&D mean to accelerate technology development against cost reduction
Examples of Statkraft use of LCOE for research project initiation
Some questions for the audience
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Good news in the wind business!
LCOE is now between $33 and $65 per MWh
Clearly beats fossil fuels
Main reason:
Bigger wind turbines that have a higher capacity factor
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Definition of LCOE – Levelised Cost of Energy The sum of discounted lifetime generated cost (£)- divided by
the sum of discounted lifetime electricity output (MWh)
Generation cost: Capital (CAPEX), operating (OPEX) and decommissioning costs including transmission costs (OFTO) over the lifetime of the project
An expression of cost rather than revenue
The discount rate is the Weighted Average Cost of Capital over the lifetime
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CoE split (typical UK R2 project)
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Turbine
Foundation
Electrical onshore
Electrical offshore
Installation
Transport & logistic
Project management
Project completion
Insurance
CAPEX ~ 2/3 OPEX ~ 1/3
Unscheduled WTG service
OFTO
Other
Grid cost (BSUoS) Preventive WTG service
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Costs must come downOtherwise projects will not get built
0,0
0,5
1,0
1,5
2,0
2,5
3,0
3,5
4,0
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012
Cost per MW installed (€m/MW)
Year
Greater Gabbard
Thanet
Rhyl Flats
Gunfleet Sands
Robin Rigg
LynnBurbo
Barrow
Kentish FlatsScroby Sands
North Hoyle
Source: Emerging Energy Research 2009; Garrad Hassan 2011; Renewable Energy World.com 2009
Drivers– Rising commodity prices– Bottlenecks in supply chain– Complexity of sites, distance, depth– FX rate volatility
ROCs increased from 1.5 to 2
300MW
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Content Definition of LCOE and status within the industry
The potential of cost reduction
OWA – a R&D mean to accelerate technology development against cost reduction
Examples of Statkraft use of LCOE for research project initiation
Some questions for the audience
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Innovation as input to Cost Reduction
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Offshore Wind Cost Reduction. Pathway Study: Crown Estate 2012
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Potential LCOE cost reduction
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TCE study 2012: FID 2011 to 2020
0 5 10 15 20 25 30
Turbine
Foundation
Collection & trans.
Installation
O&M
Total
Potential LCOE reduction by 2020 ( %)
Technology Innovation Needs Assessment Offshore Wind 2011
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Content Definition of LCOE and status within the industry
The potential of cost reduction
OWA – a R&D mean to accelerate technology development against cost reduction
Examples of Statkraft use of LCOE for research project initiation
Some questions for the audience
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Offshore Wind Accelerator (OWA)Aim: Reduce cost of offshore wind by 10%
De‐risking and cost modellingCompetition: 400 entrants, 13 to be supported
Efficient software andlayout optimisation study
Investigating possibility and benefits of moving to higher voltage for array cables
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Choose sites carefullyFocus on reducing sensitivity of cost to distance and depth
)Source: Carbon Trust “Big Challenge, Big Opportunity” 2008
Wind speed Distance Depth
70
80
90
100
110
120
130
Depth (m)0‐20 20‐40 40‐60
70
80
90
100
110
120
130
Distance to shore (nm)60+12‐30 30‐600‐12
70
80
90
100
110
120
130
800‐900
Wind power (W/m2)
700‐800
<700 900+
CoE as % typicalnear‐shore site
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Significant opportunity for innovation to drive down costs
Development Electrical Foundations Installation Turbine O&M
Monopiles
Gravity bases
Jackets
Buckets
New layouts AC vs HVDC links
Higher voltage arrays
Radial vs loops
Port‐based vs mother‐ship
New vessels, transfer systems
Condition monitoring
Jack‐up barges + shuttles
Floating installation vessels
Float‐out and sink
Larger turbines
Blades
Drivetrain
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Fabrication
Four designs prioritised for Round 3 from 104 entriesObjective: Reduce foundation costs by up to 30% in 30-60m
Shortlist Finalists
Keystone
Gifford / BMT /Freyssinet
SPT Offshore
UniversalFoundation
Airbus A320
Source: Carbon Trust Offshore Wind Accelerator 2010, IHC
IHC
Stage II focus
Installation
Demonstration
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TranSPAR –ExtremeOcean Innovation
Concept development of 13 access systems is underwayVessels
Fjellstrand Windserver Nauti‐Craft
SurfaceEffectShip –UMOE Mandal
SolidSea Transfer – UniversityofStrathclyde
Pivoting Deck Vessel – North SeaLogistics
TranSPAR –ExtremeOcean Innovation
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Divex LARS ‐ Divex
Offshore Kinetics L&R
Z Port – Z Technologies
Concept development of 13 access systems is underwayTransfer systems, launch & recovery systems
Auto Brow –Ad Hoc Marine, South Boats
MOTS ‐Momac
Wind BridgeKnud E. Hansen
TAS2 – Houlder & BMT Nigel Gee
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Content Definition of LCOE and status within the industry
The potential of cost reduction
OWA – a R&D mean to accelerate technology development against cost reduction
Examples of Statkraft use of LCOE for research project initiation
Some questions for the audience
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R&D general selection criteria in Statkraft Effect evaluation
- reduced risk- increased long-term value- increased margin- increased volume
Expected added value – a multiple of R&D cost
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Profitable wind power
plantsReduce
lifecycle costs
Improveinternal
competences
Reduce risks
Increase power production
Improve supplier
competition
Reduced Cost of Energy
Objectives for the Demonstration Programme of DONG Energy –More objectives than to reduce LCOE
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Example of classification of R&D importance
22Statkraft presentation
Scour protection requirement
XX TopicsLoad case requirements
0
0,5
1
0 0,5 1
Know
ledgegap ‐> high
Cost impact ‐> high
Classification of topic importanceTechnology class ‐ Jackets
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Concepts Phase I Monopiles – Bucket (UF) Numerical qualification with R&D input
0.231 Hz 0.265 Hz 0.267 Hz 0.244 Hz 0.271 Hz
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WMS SYSTEM (Wind Management System)Economical goals in Statkraft
WMAT
WMS SMALL SCADA
SMGTEMP
BI ZTALK WEB
1% increased production1% reduction of O&M‐costs5% reduction of balancing costs
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Assessment of Standards
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Content Definition of LCOE and status within the industry
The potential of cost reduction
OWA – a R&D mean to accelerate technology development against cost reduction
Examples of Statkraft use of LCOE for research project initiation
Some questions for the audience
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Some questions for the audience
Do you think LCOE or RISK REDUCTION is most important for offshore wind R&D?
Can pre-competitive research contribute to LCOE?
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www.statkraft.com
THANK YOU
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LCOE – break down
STATKRAFT 2008
Offshore Wind Cost Reduction. Pathway Study: Crown Estate 2012
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Cost targets from Denmark – motivates R&D focus areas
‐2020 target ‐ CoE reduced by 50 %‐25 % increase in annual production‐40 % reduction of Capex (WTG, Foundation,
Installation) ‐50 % reduction of Opex (O&M)
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OWA and Universal Foundations