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Oversigt over UK offshore projekter

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Title: Oversigt over UK offshore projekter Author: Christina G. S rensen Last modified by: Procentas Created Date: 1/18/2009 10:09:10 PM Document presentation format – PowerPoint PPT presentation

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Title: Oversigt over UK offshore projekter


1
From pioneering to industrializing offshore wind
Lessons learned from Horns Rev II Stockholm,
September 14th, 2009
2
Contents
Offshore wind challenges and DONG Energy
introduction Key lessons learned from HRII and
key steps in industrializing offshore
3
DONG Energy an introduction
4
DONG Energy has pioneered offshore wind
MW
Total
DE share (2009)
02
00
04
10
09
07
01
03
08
05
06
40
20
Middelgrunden
160
64
Horns Rev I
  • Constructed 551 MW of the current appr. 1 GW
    offshore capacity
  • Building the worlds largest offshore wind farm to
    date (HRII)

165
133
Rødsand
90
0
Kentish Flats
90
45
Barrow
90
90
Burbo
209
209
Horns Rev II
173
173
Gunfleet Sands I II
Total
1018
734
5
DONG Energy holds a substantial offshore wind
pipeline under construction and planning
Offshore wind projects under construction (1063
MW) Offshore wind projects under
engineering/planning (more than 1,500 MW)
  • More than 1000 MW offshore wind under
    construction
  • Pipeline to ensure growth past 2013
  • Furthermore, offshore pipeline could be
    strengthened from DK offshore tender, UK round 3
    and other licences

Horns Rev II (209 MW)
Wigtown Bay (280 MW)
West of Duddon Sands (165 MW)
Walney III(180 MW)
Walney III (367 MW)
Westermost Rough (240 MW)
Borkum Riffgrund I (134 MW) Borkum Riffgrund
II (388 MW)
Gunfleet Sands III (172 MW)
London Array I (315 MW)
London Array II (185 MW)
Figures represent DONG Energy's share of the
projects
6
Offshore wind in the EU is expected to see high
growth rates over the coming decades
Source "Pure Power", EWEA March 2008
7
Offshore wind is still more expensive than
onshore and the renewable technologies are more
expensive than thermal
107
Index coal100 2010 forward fuel prices (May
2009)
172
Coal
Gas
Onshore
Offshore
Of which 5-10 covers export cable and
substation Source Poyry Energy Consultants, DONG
Energy estimates on full load hours
8
Contents
Offshore wind challenges and DONG Energy
introduction Key lessons learned from HRII and
key steps in industrializing offshore
9
The installation process can be divided in many
intra-linked processes
Synergies between parks
Geotechnical exploration
  • Scale advantages on vessels

Installation of foundations
  • Improvement of design
  • Optimisation of installation process

Installation of WTG
  • Standardisation of installation concept
  • Optimisation of installation process

Commisioning
  • Repeated use of generator
  • Optimization of transfer vessels

Cable installation
  • Optimisation of installation concept
  • Integration of cable and WTG installation

Substation installation
  • Standardisation of design
  • Scale advantages in procurement

Onshore grid connection
  • Scale advantages in procurement

10
HR II The project and key lessons learned
11
Applying the same turbine enhances the learning
curve for installation
CONCEPTUAL
WTG INSTALLATION
Installation time
Time-saving potential
Current HRII experience
Future desired state
0
75
20
of WTGs
12
Strict monitoring on progress can ensure
correction of time-table delay
,
ILLUSTRATIVE EXAMPLE
Horns Rev 2 Installation progress curve
WTG INSTALLATION
Progress
100
Actual complete
Planned complete
0
Weeks
13
Next step Pipeline approach in order to capture
synergies
CONCEPTUAL
Operational issues in installation
Smooth production cycle
  • Sourcing component packages, incl. interfaces
  • WTG installation
  • Foundation installation
  • Array and export cable installation
  • Commissioning
  • Test and hand-over

MW
Years
Years
  • Scale advantage in sourcing
  • Improved planning interface management and
    installation flow
  • Minimizing risk leveraging technical learning
    curve

14
Thank you for your attention
Horns Rev 1 offshore wind farm, Denmark
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