Offshore substation installed at 496-MW Saint-Brieuc
Installation of the substation at the Saint-Brieuc offshore wind site. Image source: Iberdrola (handout)
Spanish utility group Iberdrola has installed the offshore substation that will collect power from its 496-MW Saint-Brieuc wind farm it is working on off the coast of Brittany, France.
The 3,400-tonne substation, which weighs more than 20 Boeing 747 aircraft, was placed on its 63 metres (206.7 ft) high foundation by a lifting vessel operated by Italian contractor Saipem SpA (BIT:SPM), Iberdrola said.
Smulders and Equans engineered and built the structure in Belgium. GE Renewable Energy Grid Solutions supplied the transformers and other electrical equipment.
The Saint-Brieuc offshore wind farm will feature 62 units of the SG 8.0-167 DD turbines, which are expected to be able to generate some 1,820 GWh of power per year. The electricity will be transported to land via two export cables with a voltage of 225 kV.
Ailes Marines, Iberdrola’s subsidiary that is leading the project, expects to connect the substation to the mainland ahead of turbine installation in 2023.
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