Westermeerwind wind farm construction to begin March 2015

OE Staff
Friday, July 25, 2014

Westermeerwind BV reached financial close on 25 July for the turnkey construction of the Westermeerwind wind farm in IJsselmeer, Netherlands. Work can now start on building the 48 wind turbines.

The Westermeerwind wind farm consists of 48 wind turbines with a capacity of 3MW to be installed in water, between 500m and 1100m from the dikes of the Noordoostpolder.

The client for the wind farm is Westermeerwind BV, which was founded to develop Westermeerwind at one of the windiest, and accordingly the most energy-efficient, locations in the Netherlands. Installation work is scheduled to begin March 2015. The first turbines are expected to start delivering power to the existing grid at the end of 2015. They will supply sustainable energy for some 160,000 homes.

Siemens concluded a contract in March 2013 for the wind farm to be built by a consortium of Ballast Nedam and Mammoet. Ballast Nedam is to design, deliver and install the 48 wind turbine foundations. Mammoet will then transport and install the 48 turbines. The joint contract value for the consortium is approximately 60 million euros.

The intensive collaboration with Siemens, which allowed an integrated approach to design from an early stage, has not only optimized costs, but also achieved certification of the wind farm design prior to financial close. This represents a significant advance in the control of risk and failure costs.

The foundations will be installed in water between 3m and 7m deep. The monopiles for the foundations are 5m in diameter, have an average length of 40m, and weigh between 250 and 300 tonnes.

The wind turbine towers have a direct flange connection with the monopiles with no transition piece, so that the driving operation will be performed on the flange. When the driving work is complete, a concrete maintenance platform will be attached and the wind turbines installed. The monopiles will be produced by SIF Group in Roermond, and the pile driver will be supplied by IHC Hydrohammer in Kinderdijk.

Ballast Nedam produces cost-efficient foundation solutions for the offshore wind industry. By integrated design and optimizing logistics and installation methods, Ballast Nedam is supporting the development of offshore wind energy in Europe. Mammoet has substantial experience in the offshore wind industry, including load-outs, transport, weighing and transhipment. Mammoet helps optimize the logistics process in this industry by marshalling, lifting, loading, transporting and installing the large and heavy components that are used in offshore wind farm construction.

Categories: Europe Construction Renewables

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