IN DEPTH: Meeting the Baltic challenge

Work underway in the Baltic

Work underway in the Baltic

Although offshore wind projects in the Baltic Sea have escaped some of the problems seen in the German North Sea, developers still face challenges with the potential for significant delay, says Udo Christiansen, project manager at the 288MW Baltic 2 plant for utility EnBW.

“Allow for (sufficient) time if you plan to build a wind park in that region,” Christiansen told a conference on offshore wind energy in Hamburg.

Water depths of between 23- and 44-metres as well as a tricky geology are particularly challenging, Christiansen said.

Next to sand and sedimentary till formed in the melting process of the ice-age glaciers, foundations have to fight their way through extensive layers of chalk below the Baltic's seabed.

Guidelines from Germany’s maritime and hydrographic agency on how to deal with chalk deposits are very complicated, Christiansen said.

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