FWP 2017 l Perceval MODIANO, Bouygues Construction “Floatgen @ SEM-REV: a successful partnership between the world’s first multi-technology offshore test-site and France´s first offshore wind turbine”

1. #FWPAtlan*c
FLOATGEN PROJECT
1st opera*onal feedbacks – Construc*on & logis*cs
N.Jes*n – Deputy commercial director

2. 2
FLOATGEN - DESIGN HIGHLIGHTS
Concrete Hull
Dimensions
36 m x 36 m x 9,5 m
21 m x 21 m (moonpool)
Draught 7 m
Displacement Abt. 5800 t
Material
Reinforced concrete
Grade C55
Lightweight 2 t/m3
Self-placing

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FLOATGEN - DESIGN HIGHLIGHTS
§ Structure & rebars: 3D modelling

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ADAPTING TO CONSTRUCTION SITE CHARACTERISTICS
§ A driver: build locally è St Nazaire a natural choice!
Quai des Charbonniers
construc*on site
Joubert lock
350 m x 50 m x 15,25 m

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FABRICATION ON BARGES
§ Modular floa*ng support
§ Avoiding floa*ng founda*on onshore transfer

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FABRICATION ON BARGES
§ Floater Weight
control a priority
§ Strict durability
requirements
§ Construc*on site
constraints (surfaces,
access)

7. 7
FLOAT-OFF
§ 2 harbour tugs +
harbour tug in safety
§ Controlled opera*on
§ 2 days overall

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FOSTERING LOCAL ECONOMIC SPINOFFS
§ A large number (>30) of SMEs involved (by Ideol, Bouygues, ECN)
• Origina*ng from regional area
• Support of local clusters (Neopolia)
• Wide range of ac*vi*es covered
Ø Suppliers (metallic parts)
Ø Construc*on materials (concrete)
Ø Construc*on equipment rental
Ø Logis*cs operators
Ø Engineering service providers,...
§ Direct employment created
• 53 full *me equivalent during 1 year in direct hiring
Crédit photo: Isabelle Desmond

9. 9
...NEXT?
§ Floa*ng dock: a way to avoid heavy quay requirements
§ Will be used on Eolmed Pilot wind farm
Marco Polo floa*ng dock arrival in Marseilles

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THANK YOU!