Centrale Nantes offshore test site

icon devices

Technological test facilities


Key characteristics

SEM-REV is the first European site for multi-technology offshore testing that is connected to the grid. It has all the equipment – offshore and on land – to develop, test and improve energy recovery systems (mainly from wind and wave sources).

It will play a decisive role in meeting the challenge of Marine Renewable Energy development in France. It is operated by the Research Laboratory in Hydrodynamics, Energetics and Atmospheric Environment (Centrale Nantes/CNRS), with the aim of helping industrialists develop new energy production capacities.

Using the well-known expertise of Centrale Nantes in the scope of marine renewable energy, the strategy consists in building up a continuous and pragmatic approach to the testing of technologies, and offers the corresponding facilities and services from the initial proof of concept to the large scale verification of prototypes at sea. This tryptic “modeling / ocean tank experimentation / real conditions experimentation” is a unique accelerator of MRE technologies.

The offshore site

It comprises:

  • A 1km2 designated maritime zone, 20km off the coast from Le Croisic, fully equipped to measure sea and weather conditions (wind, swell and local parameters) and clearly marked out by cardinal buoys.
  • Electric infrastructure to connect the system to the Enedis medium-voltage network via an 8MW 25km-long cable
  • A hub enabling the simultaneous connection of three machines
  • A research centre, located at Penn-Avel, to receive and analyse data and control the test devices -staffed by a dozen researchers and engineers.



Created on

2007 : Launch of the SEM-REV offshore test site following the signature of a 2007-2013 CPER (Government/Regional planning agreement)


Test facility location

Le Croisic



SEM-REV website

Additional documents

Published on 11 Nov 2017Updated on 04 May 2021