1. Optimizing Wind Farm Construction Logistics
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2. The Company (Ballast Nedam)
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• Amsterdamsche Ballast Maatschappij: 1877
• Nederlandse Aannemings Maatschappij: 1899
• Merged into Ballast Nedam: 1969
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3. The Company (Ballast Nedam)
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4. Offshore Wind – The Early Years
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Offshore Windfarm Lely
- Engineering, supply and installation of 4 foundations
Offshore Windfarm Dronten / Irene Vorrink
- Engineering, supply and installation of 28 foundations
32 foundations
1994 / 1996
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5. Offshore Wind Farm Egmond aan Zee
who we are what we did how we do it critical factors mastering logistics all comes together future challenges
Turn-key delivery of an Offshore Wind Farm in joint venture
with Vestas.
- Engineer, supply and installation of 37 foundations (1
xMeteo Mast, 36 turbine foundations.
- All offshore installations (foundations, turbines and
cables)
- 50% Electrical Scope
69 foundations
2006
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6. Rhyl Flats Offshore Wind Farm
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Installation of 25 foundations at the Rhyl Flats Offshore
Wind Farm in the Irish Sea.
Monopiles transported floating, transition piece
transported vertical on barges.
94 foundations
2008
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7. Gunfleet Sands Offshore Wind Farm
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Installation of 32 foundations at the Gunfleet Sands
Offshore Wind Farm.
Installation started during the 2nd half of 2008 and was
finalised during the first months of 2009.
Both monopiles and transition pieces were transported on
barges towards the HLV Svanen
126 foundations
2009
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8. Belwind, Sheringham Shoal and Baltic I
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Installation of 56 monopiles at the Belwind Offshore Wind
Farm.
Started in 2009, finalised in Q1/2010
Installation of 24 foundations at the Sheringham Shoal
Offshore Wind Farm.
Design and installation of 22 foundations at the Baltic I
Offshore Wind Farm in Germany.
Installation with jack-up vessel 228 foundations
2010
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9. Walney 2 and London Array Offshore Wind Farms
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Logistics and installation of 51 monopiles at the Walney 2
Offshore Wind Farm.
Floating transport of heaviest monopiles so far in offshore
wind. Maximum weight up to 805 tons.
Installation of 11 foundations at London Array ,monopile
and transition piece, at shallow locations beyond the 290 found.
limitation of the projects existing installation vessels,
Seaworker and Adventure
2011
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10. Future Projects (2012/2013)
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Installation of 111 monopiles at the Anholt Offshore Wind 481 found.
Farm in Denmark during 2013
Engineering, supply and installation of 80 foundations at
the Butendiek Offshore Wind Farm in Germany during 2013.
2013
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11. Overview designed and installed foundations - 2011
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Number of foundations 290
Designed by Ballast Nedam 91
Installed by Ballast Nedam 290
Installed by HLV Svanen 235
Number of monopiles 290
Number of transition pieces 148
Type of contracts
Installation contracts
Engineering and installation contracts
Full EPC foundation contracts
Turn-key offshore wind farm project
Track record
- On time
- 100% availabilty
- Reliable cycle times
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12. Project Example: Walney 2 Offshore Wind Farm
(Summer 2011)
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13. Walney 2 Offshore Wind Farm
(Logistics summary)
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14. Onshore Operations
(Site Barrow-in-Furness UK)
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15. Onshore Operations
(Site Barrow-in-Furness / UK)
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16. Onshore Operations
(Logistical flow)
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17. Onshore Operations
(Launching Monopiles)
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18. Onshore Operations
(Launching Monopiles)
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19. Transport to Site
(Floating Monopiles)
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20. Transport to Site
(Floating Monopiles)
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21. Transport to Site
(Transition Pieces on barges)
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22. Offshore Operations
(Docking Monopile)
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23. Offshore Operations
(Upending Monopile)
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24. Offshore Operations
(Upending Monopile)
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25. Offshore Operations
(Releasing Plugs & Pile Contingency Floatation Units)
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26. Offshore Operations
(Releasing plugs & Pile Contingency Floatation Units)
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27. Offshore Operations
(Hammering Monopile)
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28. Offshore Operations
(Hammering Monopile)
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29. Offshore Operations
(Transition Piece Installation)
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30. Weather Conditions / Working Windows
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31. Weather Conditions / Working Windows
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32. Weather Conditions / Working Windows
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Gross cycle time :
- net cycle time
- unworkable weather
- (logistic) delays
Focus
3 weeks of delay during the project can easily results in 8
weeks delay at the end which is 1/3 of the onshore and
offshore running cost
April May June July August September October November
24 w eeks
1
2
3
8
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33. Project Engineering Solutions
(Feeding concepts)
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1
3
2
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34. Project Engineering Solutions
(Rigging & Temporary Works)
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35. Human Resources
(mixing experience & ambitions)
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36. Human Resources
(1-BN concept / in-house specialities)
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37. Planning & Logistics
(Traditional Planning)
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38. Planning & Logistics
(Relevant Factors: nett. duration / logistical delays / repairs / weather)
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Progress HLV Svanen + floating piles
(Bligh Bank Offshore Wind Farm from 01 Sep 2009 to 05 Feb 2010)
10,0
9,0
8,0
7,0
6,0
duration (days)
5,0
4,0
3,0
2,0
1,0
,0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56
foundation (1 to 56)
nett duration (20% / average 12,5hrs) logistical delay (13%) repairs (1%) unworkable weather (66%)
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39. Logistical Modelling
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40. Logistical Modelling
(Input data)
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41. Logistical Modelling
(Input data)
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42. Logistical Modelling
(Input data: substructure components)
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43. Logistical Modelling
(Input data: substructure components)
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44. Logistical Modelling
(Input data: substructure components)
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45. Logistical Modelling
(Input data: marine spread)
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46. Logistical Modelling
(Input data: marine spread)
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47. Logistical Modelling
(Input data: sub-cycle times / durations)
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48. Logistical Modelling
(Input data: sub-cycle times / durations)
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49. Logistical Modelling
(Input data: local conditions)
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50. Logistical Modelling
(Input data: local conditions)
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51. Logistical Modelling
(Input data: local conditions)
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52. Logistical Modelling
(Input data: weather)
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53. Logistical Modelling
(Output)
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54. Logistical Modelling
(Output: utilization rates)
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55. Logistical Modelling
(Output: cycle time charts)
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56. Logistical Modelling
(Output: waiting times)
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57. Logistical Modelling
(Output: resource tracking)
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58. Logistical Modelling
(Sensitivity analysis)
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cycle 12,5 + > belwind variance
cycle 12,5 + >
Base case Weather 2005 lock gates < 2.5h 6m MP´s only 6.5m MP´s first no buffer nett cycle 12.5hr speed TT + extra on Svanen nett
speed TT
6.5m plug cycle
1 project duration (day) 34 66 38 33 52 41 33 28 27 39
2 nett cycletime (hrs) 16 40 18 15 22 20 15 13 13 18
3 occupancy SVANEN (%) 82% 73% 73% 85% 60% 67% 68% 79% 82% 55%
4 occupancy AHT’s (%) 29% 11% 20% 32% 14% 13% 24% 36% 38% 6%
5 occupancy Transportation Tug (%) 93% 60% 95% 94% 86% 97% 95% 93% 93% 97%
6 occupancy Harbor Tug (%) 31% 10% 43% 18% 54% 80% 68% 56% 18% 11%
7a occupancies 6.0m plugs (%) 49% 43% 45% 9% 47% 47% 39% 44% 61% 47%
7b occupancies 6.3m plugs (%) 42% 19% 46% 0% 44% 49% 35% 36% 70% 47%
7c occupancies 6.5m plugs (%) 98% 98% 100% 0% 45% 99% 99% 97% 53% 100%
8 occupancy towage beams (%) 62% 80% 63% 93% 5% 69% 72% 67% 17% 68%
10 occupancy onshore equipment (60t crane) (%) 23% 12% 20% 24% 17% 19% 23% 27% 28% 19%
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59. Logistical Modelling
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60. Walney 2
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24 hour time lapse movie available at:
www.youtube.com/watch?v=YIAovkexkYo
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61. Developments Offshore Wind
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A total of 1,247 offshore turbines are now installed and grid connected in European waters, bringing total
installed capacity to 3,294MW, spread across 49 wind farms in nine European countries.
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62. Future Locations
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63. Logistical Challenges
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64. Questions & Discussion
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