DCNS working to install ten tidal turbines in Alderney Race by 2016

October 19th, 2012 by DCNS

DCNS participated in the 4th International Conference on Ocean Energy in Dublin, Ireland from 17 to 19 October 2012.

The conference brought together global industry and academic experts in marine renewable energy.

DCNS is committed to playing a leading role in the emerging world market for ocean energy.

DCNS is developing marine tidal turbines, which convert the energy of marine tidal streams into electricity, in the same way as wind turbines do with the wind.  In 2011, DCNS took a significant equity stake in the Irish company OpenHydro.

OpenHydro Installer with an OpenHydro turbine in Paimpol, Brittany (click image to expand - image courtesy of DCNS @Fred Tanneau)

DCNS and OpenHydro are collaborating with EDF on a world-first pilot farm project in France.

This project will enable DCNS to validate some of its technological and industrial concepts as the basis for future development.

As well as making this investment in OpenHydro, DCNS is already involved in a pre-commercial tidal power farm of ten turbines to be installed between now and 2016 in the Alderney Race, near Cherbourg, France.

The effective launch of this project in the next few months will be a world first.

It will also be a key factor for significant success in this already competitive emerging global market.

DCNS is also developing offshore floating wind turbines, which exploit the greater power provided by stronger, more consistent offshore winds.

The new technology enables the installation of energy conversion systems in depths greater than 50 metres, which means that these floating generators can access a denser energy resource, at the same time as limiting the visual impact from the coast.

The first commercial farms will be installed in 2020 and will be based on the innovative floating wind turbine technology known as Wind turbine with INnovative design for Floating Lightweight Offshore (WINFLO).

The complementary skills and expertise of the project partners have made it possible to provide WINFLO generators with an innovative semi- submersible floatation system, a lightweight generator designed specifically for this offshore application, and a special anchoring system. The building of the first demonstrator will be begin in 2013.

Harvesting wave energy using systems called wave energy converters (WEC) provides access to the world’s densest renewable energy sources, with a huge power generating potential. Its characteristics make this resource capable of approaching the generating capacity of global nuclear power.

Since 2009, DCNS has been developing a wave energy converter demonstrator in La Réunion.

Through this project, DCNS is currently optimising the chosen solution to adapt it to the specific conditions of this Island.

DCNS is in charge of the project management for the prototype assembly and deployment.

In October 2011, the Finnish utility Fortum and DCNS signed a letter of intent for a joint effort to develop wave energy in France. Both parties have jointly started a feasibility study for a pilot plant on the French Atlantic coast.

Ocean Thermal Energy Conversion (OTEC) uses the difference of temperature between the warm surface water and the cold deep water to produce electrical power 24 hours a day, 365 days a year.

OTEC could therefore replace fossil energy and eventually make a major contribution to meeting the increasing electricity demand from tropical countries, helping them to achieve energy self-sufficiency at a future date.

DCNS is paving the way for standard turnkey power generating plants by taking up one of the major technological challenges of OTEC: the cold water pipe (-1000 metres) and through the construction of an OTEC land-based prototype, already installed at La Réunion.

This land-based prototype will help DCNS to test the energy generating system and to validate the performance of OTEC energy generating system.

Frédéric Le Lidec, DCNS Vice President for Ocean energy, presented the DCNS roadmap for OTEC at the ocean energy conference in Dublin.

 

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