Germany

Germany

Monobuckets set for Deutsche Bucht pilot

GERMANY: Northland Power has given the go-ahead to install two monobucket turbine foundations at the 268.8MW Deutsche Bucht offshore wind project.

The Universal Foundation monobucket foundation will be trialed at the Deutsche Bucht project
The Universal Foundation monobucket foundation will be trialed at the Deutsche Bucht project

Fred Olsen subsidiary Universal Foundation will provide the two demonstration foundations, with delivery expected in Q2 2019.

The 16.8MW pilot project will be located alongside the commercial site, which completed financing in August 2017.

It will be the first time the monobucket design will be used as turbine foundations in a commercial setting, Northland said.

The steel cylindrical base of the foundation uses its own weight and a vacuum to seal itself to the seabed. It removes the need for piling and means the site can be returned to its natural state, once the foundation has been removed.


pic: Northland Deutsche Bucht

The two pilot foundations will be mounted with MHI Vestas V164 8.4MW turbines. The same model, up-rated to 8.4MW from 8MW, will also be used at the main commercial site.

Universal Foundation previously trialled its suction-bucket concept at the Danish Frederikshavn test site in 2002.

It was also trialled at the Horns Rev 2 wind site in 2009 to host a met mast and was decommissioned after six years of operation.

Kristian Ravn, managing director at Universal Foundation, said: "This pilot provides a unique opportunity to utilise the monobucket foundation in a commercial project, demonstrating [its] low impact on marine habitats."

The Deutsche Bucht project is being developed by Canadian power firm Northland Power and will be built by EPC contractor Van Oord. It is due online in the second half of 2019.

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