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Iberdrola group starts work at Saint Brieuc French wind zone

A consortium led by Spain’s Iberdrola and EOLE-RES has commissioned DEME subsidiary GeoSea to carry out geotechnical and geophysical investigations for its 500MW Saint Brieuc French offshore wind zone.

The work will allow it to specify the dimensions and the design of the project’s foundations, and will confirm the method of installation of the future wind farm, says the consortium, known as Ailes Marines.

GeoSea began geophysical work at the end of August using an echosounder from the lXplorer vessel.

On 16 September GeoSea started a 35-day programme using the self-elevating Goliath jack-up platform. This will drill a series of 30-metre bore-holes, enabling the consortium to characterise the subsurface of the site.

Emmanuel Rollin, project director for Ailes Marines, says: “With the start of these two campaigns, Ailes Marines has taken a first decisive step in the development of its offshore wind farm in the Bay of Saint Brieuc."

The two campaigns are part of the "risk minimisation period" of the offshore project, as defined in the conditions stipulated by the French government in its call for tender.

The conditions require, among other things, that Ailes Marines carries out its engineering campaigns within an 18 month period after being awarded the project, which was in April 2012.

Ailes Marines is owned 70% by Iberdrola and 30% by RES subsidiary EOLE-RES. The consortium has an agreement with French-owned Areva to supply the wind turbines for the development.