Specific skills in the MRE field

Chantiers de l’Atlantique has a specialized unit in offshore constructions. Dedicated to international renewable marine energies and oil & gas market it is an expert in custom made solutions in EPC / EPCI contracts.

Offshore Energy Business Unit benefits from major competitive assets to answer its customer’s expectations on both its targeted markets:
• Expert teams in design and production of marine installations
• Project management, tried and tested, guaranteeing safety, quality and delivery times
• Decades of know-how as technology integrator
• Large industrial and logistical capacities with direct access to the open sea

Test facilities applicable to MRE

ANEMOS Unit production

Les Chantiers de l’Atlantique has a manufactory specializing in MRE in Saint Nazaire. Inaugurated in 2015, then expanded in 2017, this manufactory includes 3 “jacket” production units, transition piece and electrical substations:

  • An assembly building of sub-assemblies “plans” (120m x 35m x 16m) equipped with 2 lifting means of 60 tons
  • A pre-assembly area of 6000 m2
  • A very large volume of paint (50m x 35m x 25m)

Thanks to these modern workshops, which deploy production method combining digital, automation and standardization, this manufactory contributes to the reduction of Marine Energy costs. This equipment is based on the expertise in large marine metal structures, the core business of Chantiers de l’Atlantique.

Products or services in MRE


Positioned at the center of the farms, the electric substations are an essential element in the development of offshore farms. They collect the energy produced and transform it for to bring it on earth via the export cables. They also serve as relays for remote control of the farm. Several substations can be installed depending on the size of the farm.

Westermost Rough

In May 2014, the delivery to DONG Energy of the Westermost Rough offshore wind farm power station confirms the entry of Les Chantiers de l’Atlantique into the European offshore wind market.

Chantiers de l'Atlantique

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Arkona Offshore Substation

With a capacity of 385 W, the electrical substation for the ARKONA offshore wind farm located in the Baltic Sea,  is today one of the largest offshore electric substation ever built.

Chantiers de l'Atlantique

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Rentel Offshore Substation

This electrical substation equips a wind offshore farm based in Belgium. In 2016, following a highly selective European call, les Chantiers de l’Atlantique won the order for a 309 MW electrical substation. The contract includes engineering, fabrication, transportation and offshore installation. Delivery took place January 10, 2018.

Chantiers de l'Atlantique

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