Siemens Extends Norderhof Wind Farm

Onshore installation of best-selling offshore wind turbine ----- Extended wind power plant will have a capacity of 37.7 megawatts

New additions are coming to the community-owned Norderhof wind farm in the town of Galmsbüll in the North Frisia region on the German North Sea coast: six more Siemens wind turbines will raise the generating capacity of this onshore wind power plant to 37.7 megawatts (MW). The new installations with 3.6 megawatt each will be erected in the late summer of 2014. The extension is scheduled to go on line in September 2014. The contract also includes maintenance of the wind farm for a 20-year period.

By choosing Siemens' Model SWT-3.6-120 turbine, the farm operator has opted for world's best-selling offshore wind turbine. The coastal location and erection with a hub height of 89.5 meters will permit optimum energy yield. The first section of the Norderhof wind farm went on line in 2007. Generating over 16 MW from seven Siemens Model SWT-2.3-93 wind turbine units, Norderhof I has been delivering climate-friendly energy ever since. Owing to the good experience with a number of 3.6-megawatt turbines at the neighboring Marienkoog wind farm, the installation operator, Bürgerwindfarm Galmsbüll, is now banking on the service-proven offshore turbine unit for the Norderhof II extension.

Siemens' project team and the consultant engineers at Denker & Wulf AG had investigated possible shadowing effects and increased turbulence for the legacy installations in advance, and taken these factors into account in planning. "Due to the short distances between the units, taking optimum advantage of the additional potentially useful wind area increases the burden on the existing turbines," explains Torsten Levsen, amongst others managing director of Bürgerwindpark Galmsbüll GmbH & Co. KG. "However, the sturdy, robust design of Siemens' wind turbines units makes them so stable that hardly any compromises were needed when planning Norderhof II." Jess Jessen, managing director of the operating Betriebsführung Osterhof, adds that, "With this project, Siemens once more reinforces our good experience. In our Region, the company has for years been a dependable partner offering reliable technology."

"Community wind farms are particularly important projects for us, because the large number of local people involved underlines the popular appeal of our technology," says Jan Kjaersgaard, CEO at Siemens Wind Power for the EMEA sales region.

Wind power and energy service are part of Siemens' Environmental Portfolio. In fiscal 2012, revenue from the Portfolio totaled about €33 billion, making Siemens one of the world's largest suppliers of ecofriendly technologies. In the same period, our products and solutions enabled customers to reduce their carbon dioxide (CO2) emissions by more than 330 million tons, an amount equal to the total annual CO2 emissions of Berlin, Delhi, Hong Kong, Istanbul, London, New York, Singapore and Tokyo.

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