Purpose built vessels for offshore wind

1
Purpose built vessels for offshore wind the
best way forward
Supply chain issues15.09.2009
2
Demand assuming only 70 proceed
3
Offshore wind installation before 2020
4 GW installed before 2012

• 2 GW per year 2013 - 2014 600 turbines/year
• 4 GW per year 2015 20161000 turbines/year
• 5 GW per year 2017 20201000 turbines/year

4
Offshore wind installation before 2020

• Number of installation vessels fully dedicated
  offshore wind

• By 2010 the industry has 10-12 vessels
• By 2012 the industry has approx 20 vessels
• By 2015 8-10 of the vessels in the industry are
  too small

5
Where are the vessels needed?
German Dutch Developments
UK Round III
6
More challenging Locations

• Projects are moving further offshore 30 to 120
  km
• Distances from logistics ports are generally
  increasing
• Water depths are increasing 10 20 30
  40/45 m
• Environmental conditions become more challenging
• Benefits of a local logistics port diminish
• Sites are being approved even where there are
  difficult sea bed conditions

7
Increasing Project Size
Year Range 2002 - 2008 2009 - 2011 2012 - 2015 2016 - 2020
Typical no. WTGs per project 20 80 80 140 80 200 100 - 1000
Typical WTG Size 2 3MW 3 3.6mw 3 5MW 5 7MW
Construction Period 1-2 Years 2 Years 2-3 Years 2-6 Years
8
Impact of increasing project size

• Significant variation in the sea bed topography
  and conditions across sites
• Installation over multiple years and working into
  winter months
• Several installation vessels required per project
• Delays / problems have greater knock on effects

9
Increasing Turbine Component
Turbine Size Nacelle Weight (incl. rotor) Hub Height Blade Length Tower Weight
3.0 MW Approx. 110 MT 75 90 m 45 50 m Approx. 110 MT
3.6 MW Approx. 185 MT 75 90 m 50 58 m Approx. 170 MT
6.0 MW 310 400 MT 100 120 m 60 65 m (Rotor 126 m) 300 500 MT
10
And foundations even larger
Greater Gabbard Monopiles up to 65m long, 6.5m
diameter and approx. 650 tonnes
11
Project logistics are changing

• Likely development of Super Logistics ports
  that are used to feed many projects in a region
• Reduction in use of project specific local ports
• Local ports only used for shelter and resupply

12
Installation Vessels
Jack-ups or purpose built vessels
Jack up 2000 - 2010
Either / or 2004 - 2015
Semi Jack up 2002 - 2011
13
Floating Vessel Types

• DP vessels from OG sector for piling operations
• Floating heavy lift cranes shear leg cranes

14
New Vessels(from Oil Gas)
Master Marine
SeaJacks
15
The best vessel for offshore wind
Stabilised working platform from where offshore
turbines can be installed in high waves and wind

• High speed jacking
• Jacking in 2 m significant wave height
• Self-propelled / high speed
• Large deck area / loading capacity
• High crane capacity / fast crane
• Accommodation for up to 50 people

THIS DOES NOT COME FROM OIL AND GAS!!
16
Typical design of new vessels
17
Other vessels will be required as well

• Cable laying vessels
• Personnel transfer vessels
• Tugs
• Hotel ships

18
Purpose built The way forward
Vessels for installation of foundations
Tripod
Sea bed conditions vary
Turbines
Monopiles
Crane capacity
Jacking speed
Loading capacity
Wave height
Feeding / no-feeding
Current
Wind
Concrete Structures
Mobility
Tide
Vessels for installation of turbines
Jackets
19
Summary

• Purpose built vessels are the future for offshore
  wind
• Huge investment is required across the
  construction and maintenance fleet during the
  next 5 years
• 20 new construction vessels 2.0 to 2.5
  billion
• UK round 3 does provide sufficient scale for this
  size of investment
• Firm investment decisions required during 2010
  and 2011 to meet 2015

UTILITY WTG Manufacturers Fabrication Yards
Installation Contractors
20
Any questions??...