The turbines were erected in less than 1.5 months, and following commissioning and connection commercial operation is due to begin by the end of the year.
The Burbo farm, the first offshore project to be built by Siemens, has a total capacity of 90 MW and will be operated by SeaScape Energy, a company owned by the Danish utility DONG Energy.
The 65 m high steel towers were assembled upright and all internal and electrical systems were tested before they were loaded onto the installation vessel. The purpose built vessel carried towers, nacelles, hubs and blades for 3 turbines per trip to the site area, which is located approximately 12 km from shore.
Using the Siemens SWT-3.6-107 turbine, the average erection time per unit was less than half a day.
In a few weeks' time, erection of 48 turbines of the SWT-2.3-93 type will commence offshore at Lillgrund near the Swedish city Malmoe. With a capacity of 110 MW, it will be the largest offshore wind farm in Sweden. The Lillgrund project will be operated by the utility company Vattenfall and commercial operation is scheduled to start in the fall of 2007.
In 2008, Siemens will start erection work on the largest offshore wind farm in the world off the east coast of Great Britain. The 180 MW Lynn and Inner Dowsing project comprises 54 SWT-3.6-107 wind turbines and will be operated by the British gas provider Centrica.
"Offshore wind energy is a key future market for Siemens," said Andreas Nauen, head of the Wind Power Division of Siemens PG.
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