Institute for Energy Transition
dedicated to Marine Renewable Energies
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Annex IV logo
12/12/2018

France Energies Marines joins the international programme called Annex IV

ABIOP logo
10/12/2018

Innovative work and promising results

APPEAL - Mediterranean campaigns
04/12/2018

Two campaigns in Occitania to study in an integrated way the impact of floating wind farms

Example of colonization by benthic species of a sumarine cable - BREBENT Project, FEM-IFREMER
14/08/2018

To study in an integrated way the impact of floating wind farms.

MISTRAL sea test site: Informational meeting
17/09/2018

Informational meeting at Port-Saint-Louis-du-Rhône city on September 14th.

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  ofstrong 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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