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The OPEN-C Foundation

The largest offshore test centre for floating wind and Marine Renewable Energy (MRE) in Europe

The OPEN-C Foundation is a non-profit public-interest organisation which contributes to a more rapid energy transition and to enhancing France's position on these strategic issues.

This partnership foundation, created in March 2023, coordinates, develops and manages offshore tests.

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Target sectors


The development of floating wind turbines is now a priority in order to accelerate the development of this strategic sector. Other sectors will also be the focus of a national development strategy.

OPEN-C foundation missions


  • Develop offshore infrastructure: develop existing test sites and create new test sites
  • Operate and maintain offshore test sites
  • Support prototype and technological component testing
  • Encourage investment in infrastructure through sponsorship
  • Ensure environmental monitoring and site characterisation
  • Disseminate knowledge to the scientific community and the general public
  • Train staff to manage and maintain the test sites
  • Consolidate the national Marine Renewable Energy sector

Types of projects hosted on the offshore sites

The main activity of the OPEN-C Foundation is to host collaborative experimental research projects. A majority of these projects are set up within the framework of European or national calls for projects.


Connected projects :

  • Grid-connected prototypes of all technologies

Off-grid projects :

  • Emerging technologies (small size or wave energy)
  • Technological bricks: anchors, dynamic cables, connection hub (submarine), monitoring and measurement systems, hydrogen technology, etc.
  • Environmental observation equipment

Non-technological research projects :

  • Knowledge of the environment
  • Interactions with technologies
Offshore test sites provide a platform for a demonstrator’s "maiden flight" in Marine Renewable Energy. Test sites constitute essential infrastructure for hosting grid-connected and off-grid offshore test projects.