Renewables – Offshore Wind
Met Mast for ‘Nordsee Ost’ and ‘Ijmuiden’ Wind Farms – Germany

Client
RWE Innogy

Project Location
Southern North Sea, Germany and Dutch Sector of the North Sea

IMPaC’s Scope
Basic Design for the entire met mast structures incl. met mast towers, working platforms, transition pieces and foundation monopile structures
Structural strength check
Non-linear geo-technical analysis
Cost estimate (incl. weight and equipment lists)

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For the offshore wind farm developments ‘Nordsee Ost’ in the Southern German North Sea and wind farm ‘Ijmuiden’ located in the Dutch Sector of the North Sea as well as associated infrastructure IMPaC has designed two met mast structures.

Accessibility of all equipment parts including moveable cantilever booms and retractable spigot for measuring instruments such as wind vanes and anemometers had to be developed for the basic design of the entire met mast structure. Also suitable positions for LIDAR and other equipments had to be determined. The met masts have been designed for 25 m water depth and for a height of about 96 m and 92 m above LAT alternatively.
Following documents have been prepared as part of the basic design for the entire met masts:

• General Arrangement Drawings
• Strength Check Report
• Material Take-Off (MTO)