NAUTILUS floating structure for offshore wind

Short description

NAUTILUS concept is a four-column floating foundation for multi-megawatt offshore wind turbines.

NAUTILUS is a company founded by TECNALIA and incorporating Astilleros Murueta -a shipyard located in Bilbao-, TAMOIN - an electrial engineering and services company-, VICINAY MARINE INNOVACIÓN, -a world leader in mooring lines manufacturing-, and VELATIA -a world leader in electrical MV switchgear manufacturer for offhshore wind-.

http://www.nautilusfs.com

Main technical features

Four-columns semisubmersible structure joined by a rigid ring pontoon with flat lower surface.
It is a symmetrical structure with no tubular joints.
Heave plate placed inside column perimeter.
Steel construction.
Two types of ballast: active water ballast and passive concrete ballast.
Standard catenary mooring.

Two column redundant access to WT.

Innovative aspects

Reducing manufacturing costs

Four-columns semisubmersible structure
- Reduce global dimensions while keeping stability
Block construction
- Reduce outdoor assembly time
Passive concrete ballast
- Reduces weight during manufacturing
No tubular joints
- Simpler manufacturing
Rigid ring pontoon with flat lower surface
- Various load-out procedures available

Reducing load-out costs

Rigid ring pontoon with flat lower surface
- Various load-out procedures available

Reducing assembly & installation costs

Standard catenary mooring
- Proven mooring system
Heave plate inside column perimeter
- Easy quay berthing

Reducing O&M costs

Symmetrical structure
- Less sensitivity to wind-wave misalignment
Steel construction
- Well-known material behaviour in the sea
Active water ballast
- Allows draft adjustment depending on operating conditions

Applications

Deep water offshore wind

Image gallery

‹ ›

Type of partner sought

Companies,Other