SPAIN | ING. CIVIL AND CONSTRUCTION

Wind turbine structure of the DemoSATH floating offshore wind turbine project

DemoSATH Structure Monitoring System
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PROJECT OBJECTIVE

Installation of the monitoring system

Grupo Álava has collaborated in the development of the DemoSATH floating offshore wind energy project, led by the Spanish company Saitec Offshore Technologies. As part of this project, the DemoSATH 2 MW floating offshore wind turbine has been installed off the coast of the Biscayan town of Armintza.

The wind turbine installation operation has been carried out by local tugboats to move the platform from Punta Sollana, in the Port of Bilbao, to the BiMEP (Biscay Marine Energy Platform) test area, where it has been located.

It is an area with a depth of 85 meters, located 2 miles offshore, where the wind turbine is fixed thanks to an anchoring system. This is composed of six hybrid chain and fiber lines connected to the turret on the bow of DemoSATH. It is expected to produce annually the amount of electricity equivalent to the energy needs of 2 billion homes.

Execution Date:

January to October 2022

Location:

Armintza (Biscay)

Sector:

CIVIL ENGINEERING AND CONSTRUCTION

Client:

How we made it happen

State-of-the-Art Monitoring System for Floating Wind Turbines

Ie installed a monitoring system with 133 stress-strain and temperature sensors based on FBG fiber optics, located in the main structural elements and in the concrete of the floating structure of the wind turbine.

The system allowed dynamic and static measurements to validate the real behavior of the structure against sea conditions, ensuring the reliability of the calculations.

The sensors were immune to oxidation and could be connected in series on a single cable and transmit signal up to 40 km without loss, facilitating efficient and accurate monitoring.

This solution, together with DemoSATH’s advances in offshore wind, represented a significant breakthrough for the renewable energy sector.

OUR CONTRIBUTION

Some of our products and services applied to this project

Service

Technology consulting

We advise on the best technological solution to apply according to the needs of each project. Learn more about our technology consulting.

Product

Infrastructure monitoring

Bragg gratings are periodic structures of refractive index changes in an optical fiber. These structures act as wavelength-selective reflectors, which means that they can selectively reflect or transmit certain wavelengths of light.

SUPPORT AND TRAINING

Professional Services

At Grupo Álava we offer our own high quality technical service and training to satisfy all our customers’ needs and provide the best support.

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RESULTS AND ACHIEVEMENTS

Floating structure in perfect condition

For DemoSATH to function properly, its flotation structure must always be in perfect condition. For this reason, it has a system that permanently monitors its tension, deformation and temperature levels. The system developed and deployed by Grupo Álava allows these levels to be kept under constant surveillance, in order to be able to take measures in the event of any deviation, however slight, from the calculations established for the optimal operation of the wind turbine.

OUR EXPERIENCE

Other projects and clients that have counted on us

GROUP COMPANIES

The synergy of our companies is the key to our success.

We have specialized in the needs of our customers and the technologies they require, maximizing the capabilities of each brand with the synergy of the Alava Group itself.

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