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In the absence of a viable crossing route, RTE and REE launch new studies to bypass the Capbreton Canyon

As part of the studies prior to the construction of the new interconnection between France and Spain via the Biscay Gulf, RTE and REE carried out geological studies of the seabed. They revealed ground instability along the edge of the Capbreton Canyon. Additional analyses conducted since June have not identified a route under the canyon that is guaranteed to be stable for the life of the power line.
RTE and REE are therefore forced to abandon this solution and define a new route around the canyon.

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RTE and REE perform additional analysis to secure the Biscay Gulf project

As part of the studies prior to the construction of the new interconnection between France and Spain via the Biscay Gulf, RTE and REE carried out extensive geological studies of the seabed. The latest studies, at the beginning of May, revealed soil instability very close to the Capbreton canyon, in French waters.

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Meeting with suppliers in Brussels

Inelfe organised a meeting with HVDC cable, converter station, submarine cable and drilling suppliers in Brussels. Held between 16 and 20 April, its goal was to explain the scope of the interconnection project between Spain and France via the Bay of Biscay and to exchange information on the best way to implement the project (technology, materials, implementation procedures, etc.).

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Supplier´s Event 2018

HVDC cables and converter stations for the Biscay Gulf electricity interconnection between France and Spain

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The President of the Spanish Government and the French Prime Minister inaugurate the electrical interconnection between Spain and France

• The new electricity infrastructure, 64.5 km in length, has represented an investment of 700 million euros and will double the interconnection capacity between the two countries.

• Started in 2008, the project has been, for both Red Eléctrica de España (REE) and Réseau de Transport d’Électricité (RTE), a technological challenge on the road towards the single European energy market

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The cables are “wound” along the technical interconnection tunnel

The cables through which the electricity will travel between France and Spain are already “winding” along the interconnection tunnel that links both countries. The installation was completed at the end of October and entailed a very meticulous and precise process. To unwind the cables and place them in the supports inside the tunnel, the technique of “snaking” was employed. This is a sinusoidal motion, similar to a snake, which gives the cable a sufficient curvature to easily absorb the expansion caused by the current flow.

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An important step towards the france-Spain interconnection. The 400 kV power line between Bescanó and Santa Llogaia is now operational

Since 7 October, electricity has been flowing through the 400 kV power line between Bescanó and Santa Llogaia. This marks a step further towards the new electricity interconnection between France and Spain. Santa Llogaia is the location of the converter station for the interconnection implemented by INELFE, a joint venture between Red Eléctrica de España (REE) and Réseau de Transport d’Électricité (RTE). This interconnection will make it possible to double the power exchange capacity between the two countries.

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Work on the Interconnection Project is Completed

After two years of work, the excavation of the trenches for the new electrical interconnection between France (Baixas) and Santa Llogaia (Spain), as well as the construction of the converter stations, was completed this summer.



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The cables snake along the technical interconnection tunnel

The cables snake along the technical interconnection tunnel

Author: Philippe Grollier

The cables snake along the technical interconnection tunnel

The cables snake along the technical interconnection tunnel

Author: Philippe Grollier

The cables snake along the technical interconnection tunnel

The cables snake along the technical interconnection tunnel

Author: Philippe Grollier

Installation of the cable in the tunnel entry, French side

Installation of the cable in the tunnel entry, French side

Author: Philippe Grollier

Installation of the cable in the tunnel entry, French side

Installation of the cable in the tunnel entry, French side

Author: Philippe Grollier

Installation of the cable in the tunnel entry, French side

Installation of the cable in the tunnel entry, French side

Author: Philippe Grollier

Installation of the cable in the tunnel entry, French side

Installation of the cable in the tunnel entry, French side

Author: Philippe Grollier

Installation of the cable in the tunnel entry, French side

Installation of the cable in the tunnel entry, French side

Author: Philippe Grollier

Installation of the cable in the tunnel entry, French side

Installation of the cable in the tunnel entry, French side

Author: Philippe Grollier

Installation of the cable in the tunnel entry, French side

Installation of the cable in the tunnel entry, French side

Author: Philippe Grollier

Installation of the cable in the tunnel entry, French side

Installation of the cable in the tunnel entry, French side

Author: Philippe Grollier

Installation of the cable in the tunnel entry, French side

Installation of the cable in the tunnel entry, French side

Author: Philippe Grollier

Embedded thumbnail for Trailer virtual tour

Trailer virtual tour

Embedded thumbnail for End of the digging of the tunnel for the France-Spain electrical interconnection

End of the digging of the tunnel for the France-Spain electrical interconnection

Embedded thumbnail for France-Spain electrical interconection

France-Spain electrical interconection

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