Innovative Wind Solutions

Revolutionizing Offshore Energy

Discover how SEREO’s unique floating wind turbine design enhances efficiency and sustainability in deep coastal waters, paving the way for a greener future.

Our Story

Sereo innovating concept

The creators of the company Sereo (Structure of Study and Research on the Offshore Wind turbines), applied for a patent concerning an innovative concept of floating wind turbine :
1 –Plan d’exécutionFR N° 09 04784 deposited on October 05th, 2009
2-Improved patent deposited on October 2012 (FR N° 12 02855)

The innovation bears on a particular architecture of floating wind turbine « V » shape twin-rotor, allowing to improve the technologies of floating wind turbines actually known, for operations in coastal areas where founded wind turbines are not suitable, including important depth on any sea bed type, where the constraints of acceptability are the least penalizing, with regard to the conflicts of use of the concerned zones.

After a first little scale model, Sereo’s objective is to study the performance and the operability of a demonstrator with less reduced scale.

Our Purpose

V-shape twin-rotor structure

Piloting the thrust asymmetry in the two rotors ensures natural orientation, including with presence of waves and swell

Natural yaw control with differential pitch variation of the blades

Reduction of the weight and of the cost price of structures

Reduced aerodynamic/hydrodynamic interaction

It is therefore possible to produce on average more electric power (maximum possible wind captured) for a given area of exploitation and at a lower cost

Vibrant green fields with wind turbines under a blue sky in Kiel, Germany.

Sereo innovating concept

Two or three blades wind turbines :

Better response to inherent dynamic stresses
Integrated structure easy to transport

Spar Platform :

Most of the structure is under the sea surface
Good stability in waves and swell with the softest possible motions allowed by the SPAR geometry

Mutualization of the components of structure and anchorage, particularly expensive.
More advantageous production cost with regard to a mono rotor solution.Densification of the power production : Wind turbines monorotor must be normally taken away from 3 to 5 times their diameter, to avoid the aerodynamic disturbances emitted downstream to a rotor.Transport ,erection and operation simplified

Dry assembly on the ground and horizontal launching
Horizontal towing supported by simple floats with low draught or horizontal carriage of several wind turbines on supply vessels
Anchoring by classical and economical anchor lines tightened from surface
No heavy offshore crane for handling permits low erection cost

The Sereo Project was certified by the « Pôle de compétitivité EMC2 » in november 2013 Completely competitive power cost, at both levels, manufacturing the wind turbine and installing it.
Objective < 3.5 M€ the installed MW (equivalent to the « founded » offshore wind turbine in little deep waters < 40m)

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