Hull Offshore Wind Workshop
Siemens Wind Power A/S, Thomas Mousten, Offshore Wind Americas
© Siemens AG 2011
Divisions
Industry
 Industry Automation
 Drive Technologies
 Osram
 Industry Solutions
 Building Technologies
 Mobility
 Oil & Gas
 Fossil Power Generation
 Renewable Energy
 Energy Service
 Power Transmission
 Power Distribution
Healthcare
Sectors
Energy
Answers provided by 15 Divisions
in three Sectors
 Imaging & IT
 Workflow & Solutions
 Diagnostics
© Siemens AG 2011
We are globalizing our offshore expertise and
are ready to serve the US market
Map of Siemens offshore offices
Netherlands
(Den Hague)
UK (Frimley)
Denmark, HQ (Brande)
North America
(Boston)
China (Beijing)
Germany (Hamburg)
Q
2
2
Q 010
3
2
Q 010
4
2
Q 010
1
2
Q 011
2
2
Q 011
3
2
Q 011
4
20
11
14
12
10
8
6
4
2
0
© Siemens AG 2011
Trends in Offshore Wind Turbine Technology
-Hub height & Rotor sizes
WTG’s are getting larger and are installed farther
off shore and in locations with deeper water
depths
 The turbine towers are becoming taller as a
consequence of the larger rotors.
 Financial modeling also shows benefits from taller
towers due to better wind resources but is also
associated with higher costs for foundation and
tower construction.
Longer and Lighter Blades
 The offshore wind industry is currently
offering blades in the 120m range
Rotor Diameter
Range (m)
Rating
(MW)
Distance to shore
(km)
Water depths
(m)
Size of offshore
wind farms (MW)
1990s
2000s
2010s
2020s
37
82
120
>150
0,5
3
3,6
>6
2
12
35
> 70
5
15
> 30
> 30
6
90
> 500
open
 Indications are pointing towards rotors in the
>150m range for offshore turbines.
 Siemens Wind Power followed this trend with
the SWT 3.6-120MW
 Tests indicate that the new machine will
generate approx. 10% more electricity in
comparison to similar wind turbines.
© Siemens AG 2011
Trends in Offshore Wind Turbine Technology
-Optimization of Availability
Turbine Condition Monitoring (TCM®)
The TCM® system allows for the continuous
online vibration monitoring of the wind turbine
with 6 sensors and allows for the assessment of:
 Gearbox
 Main bearing
 Generator
The purpose of the TCM® system is to:
 Optimize the planning of service works, reduce service costs and down time
 Perform preventive repair of components before breakdown – automatic
stop of wind turbine in case of excess of vibration limits
 Improves possibilities for further technical development
© Siemens AG 2011
Our strategy for technology leadership
SWT-3.0-101
Facts
 3.0 MW gearless direct drive turbine
 Rotor diameter: 101 m
 No gear box
 Reduced number of parts
 Reduced maintenance costs
 Synchronous permanent magnet generator
 High efficiency
 Compact design allows for easier transportation and
installation
Picture from
installation to follow
 The 6-MW direct drive wind turbine will be launched
later this year
 Will be particularly suitable for large offshore wind
power plants
© Siemens AG 2011
Trends in Offshore Wind Turbine Technology
-Foundations
Foundation : monopiles not necessarily the suitable solution
Foundation type Cost saving potential
Monopiles
Monopiles
Water
depth (m)
Known technology
Foundation type
 Monopiles
0 - 10
 Gravity
Gravity
Gravity
Known technology
 Monopiles
10 - 35
Less steel
Jackets
Jackets
 Jackets
Stiffer structure
 Jackets
Not yet industrialized
From 35
Floating
Floating
Potential future concept for deep
positions
 Floating (future)
Tower interface : two potential cost saving solutions


Having one structure:
More even distribution of stiffness
steel reduction
Improving arrangements (secondary steel):
Specific offshore interface design (flanges, platforms, lay down area, access, etc) steel reduction
© Siemens AG 2011
Hywind: An example of how we are tackling trends
in offshore wind
Hywind
 Cooperation on technology with Statoil to develop the
world's first floating offshore installation
 In 2009 Siemens installed the first wind turbine for the
demonstration unit off the coast of Norway
 Floating offshore turbines could be installed at sites
with greater water depths
Source: SWP
© Siemens AG 2011
Trends in the offshore Balance of Plant
-Vessels
Future vessels need to be…
Able to install turbine quickly
Able to install pre-commissioned components
Working year round even in high down time period
Designed for specific purpose
Purpose build vessel is a key component in a project
To ensure vessel availability in the US:
 Short term the Jones Act needs to allow for
foreign build vessels; either in general or be
project specific waivers
 Long term U.S. shipyards and/or ship operators
should team up with European experience and
start installation vessels development in the U.S.
© Siemens AG 2011
Trends in the offshore Balance of Plant
-Ports
Offshore port requirements:
 Unrestricted access to, and permit to work in the area, 24/7 and 365 days a year
 A contiguous piece of level land with a total area of 2000 m2 per turbine (min. 50000 m2)
 Suitable water depths at the load-in quay of ~ 10m allowing ocean-going coasters (cargo vessels)
 Indoor high ceiling storage
 Good infrastructure within the construction area and the quay side
 Utilities: Power, water, internet and phone
© Siemens AG 2011
Thank you very much for your attention!
Questions?
© Siemens AG 2011