Eiffage and Engie win offshore contract

The contract for a proposed offshore substation – off the coast of Saint-Brieuc in Brittany, France – has been awarded to a consortium of Eiffage Metal and Engie Solutions.

The substation, which will cover a total area of 75km², will have a total capacity of 496MW and is expected to produce 1,820GWh annually, the equivalent annual electricity consumption of 835,000 inhabitants.

The wind farm, located 16.3km off the French coast, is the first large scale offshore wind farm in Brittany and one of the first in the country to receive all necessary permits for construction.

The Saint-Brieuc bay offshore substation consists of a 63m-high jacket of 1,630 tonnes and 315 tonnes piles and a topside weighing approximatively 3,400 tonnes. The topside is 55m long, 31m wide and 23m high.

Ailes Marines, a company owned by lberdrola – the top renewable energy producer in Europe and the United States – awarded the contract to the consortium which will see both companies undertake various tasks.

Eiffage Metal is responsible for the engineering and construction of the steel structures for both the topside and jacket. All works will be performed in the production facilities of its subsidiary Smulders.

Engie Solutions in Belgium is in charge of the engineering, procurement, integration, construction and testing (on- and offshore) of all LV, MV, HV and auxiliary systems for the jacket and topside that will take place at the Engie Solutions yards.

Engineering and construction works have already begun for the topside and jacket. Sail away of both the topside and jacket is scheduled for the middle of 2022.