Dogger met-masts ready to go

Brave Tern ready to begin work at Dogger Bank

Brave Tern ready to begin work at Dogger Bank

Fred Olsen Windcarrier’s Brave Tern installation vessel is set to put in the first of two meteorological masts featuring ground-breaking “suction bucket” foundations at the vast £3bn ($4.7bn) Dogger Bank wind development site off the UK’s east coast.

The flask-shaped 165-tonne steel structures, built at Belfast’s Harland and Wolff (H&W) yard using a design from Danish outfit Universal Foundation, are being trialled for developer consortium Forewind as cost-cutting foundations for wind turbines in mid-range water depths.

Based around a squat cylindrical “skirt” that pulls itself down into the seabed using a system of high-pressure pumps so that the soil becomes a structural support to root the tower and turbine in place, the concept – branded the Bucket Foundation – was developed through The Carbon Trust's technology-mentoring Offshore Wind Log in to read complete article.

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