Institute for Energy Transition
dedicated to Marine Renewable Energies
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GEOSISMEM project
04/05/2019

Reducing the cost of seabed characterization

Progress meeting continued
09/04/2019

Continuation of progress meetings

Bastien Taormina, PhD student at France Energies Marines  and Ifremer, in front of his experimentation set‐ up
28/02/2019

Is lobster sensitive to the electromagnetic field of underwater power cables?

First expert work in the framework of COME3T project
31/10/2018

Three submitted themes, restitution in few months

Online survey
12/02/2019

Participating in user needs consultation

STHYF

Seafloor cable stability and hydrodynamics

Duration: 2 years

Project description

The development of tidal turbine arrays requires managing the costs of stabilizing electric cables on the seabed in the presence of strong currents. Existing  methodologies  are suitable for sites where cable instability is mainly related to wave action. The very specific nature of strong currents found at tidal turbine sites requires an adaptation of these methodologies taking into account turbulence in the currents combined with waves and chaotic bathymetry.
STHYF proposes to identify the limitations of current methods for this application and to define a new instability prediction model validated by dedicated testing and numerical calculations.

Objectives

  • Identifying the current limits of these applications (stabilization solutions, prediction methods, means of testing and monitoring)
  • Characterizing of complex tidal turbine site currents using numerical and experimental approaches (turbulence, waves, bathymetry)
  • Developing a methodology appropriate for the estimation of cable stability

Partners

Coordination: France Energies Marines
Scientific and technical management: EDF

STHYF project partners

This work received state support managed by the National Research Agency under the Investments for the Future Program (ANR-10-IEED-0006-20). It is one of the winners of the 2016 "Renewable Marine Energies" call for projects launched as part of the "Institutes for Energy Transition" action of the Future Investment Programme.
  
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