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Siemens Receives Order for Wind Turbines and Servicing
for Sandbank
Offshore Wind Farm
• Seventy-two wind turbines of Siemens’ G4
product platform to deliver a total electrical generating capacity of 288
megawatts
• Pioneering joint service plan with the neighboring DanTysk
project
• Specialized shared servicing ship will enable highly
efficient operation
August 11, 2014
+ + + Vattenfall has awarded Siemens Energy an order
for 72 Model SWT-4.0-130 wind turbines for its new
Sandbank offshore wind
farm (1). The project is being erected 90 kilometers west of the island of
Sylt in water depths between 25 and 37 meters within the exclusive
economic zone off the German North Sea coast. A pioneering service plan
for the project will generate synergy from its close vicinity to DanTysk
offshore wind farm, utilizing joint operations to drive down the
maintenance costs of both projects. Vattenfall has contracted Siemens to
perform maintenance services on the Sandbank installations for an initial
period of five years.
Service operations will center on a Service
Operation Vessel (SOV) specially designed for these deployments. Following
project commissioning, this specialized ship fitted with living
accommodations for technicians and a workshop equipped with spare parts on
board will take up position between the two wind farms. A helicopter will
provide additional deployment readiness to enable crew to be ferried
between land, the SOV and the wind turbines, irrespective of weather and
sea conditions. DanTysk wind farm, already in an advanced stage of
construction and likewise equipped with Siemens wind turbines of the G4
product platform, lies only 20 kilometers away. The permanent deployment
readiness of the SOV and its use to both wind farms will enable
particularly efficient operation owing to the short journey distances and
high availability of both wind farms.
The wind turbines themselves
will also contribute significantly to increasing efficiency and lowering
costs at the Sandbank project. Siemens’ Model SWT-4.0-130 wind turbines
ordered for the project represent the latest generation of the Siemens G4
platform wind turbines. They combine the proven technology of the
most-built offshore wind turbine series – over 900 units worldwide rated
at 3.6 megawatts are in operation – with a significantly enhanced power
output of 4 megawatts at comparable maintenance costs. What is more, the
unit's rotor - measuring 130 meters in diameter - delivers optimum energy
yield even at low and moderate wind speeds. The advanced rotor blades also
contribute to efficiency: The 63-meter-long aeroelastic blades are
designed to be flexible under high wind loads, and can therefore be
manufactured with up to 20 percent reduced mass compared to conventional
rotor blades. Hence, once commissioned at the end of 2016, Sandbank will
count among the most modern offshore wind farms anywhere in the world.
Construction is scheduled to commence in summer 2015.
"We are very
pleased to be joining forces and pooling our shared experience again with
Vattenfall to implement another major offshore project," says Markus
Tacke, CEO of Siemens Energy's Wind Power Division. "Thanks to
Vattenfall's expertise in project construction and operation and Siemens'
innovative technology and service prowess, Sandbank will boldly
demonstrate just how far we've come in reducing the costs of offshore wind
power."
"The Sandbank project is further testament to Vattenfall's
strategy of consistently focusing our growth efforts on the expansion of
renewable energy," says Gunnar Groebler, Head of the Renewables Business
Unit for Vattenfall's Continental/UK region. "We know how to work offshore
and we see it as a significant building block in the success of the energy
transition (Energiewende) in Germany. We are therefore delighted to have
Siemens as an experienced partner for the building of the wind turbines on
board again.”
Wind power and the associated service activities are
part of Siemens' Environmental Portfolio. Around 43 percent of the
company's revenues are generated by green products and solutions. That
makes Siemens one of the world’s leading providers of eco-friendly
technology.
Source: Bernd
Eilitz, Siemens AG -
www.siemens.com
More information about
Service Operation Vessel is available at
http://www.energy.siemens.com/hq/en/energy-topics/energy-stories/sov.htm
(1) The
Sandbank offshore wind farm
is a joint project of SWM (Stadtwerke München) and Vattenfall. Vattenfall
holds 51% and SWM 49%.
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