The Saint-Brieuc export connection is the HVAC grid link that transmits power from the 496 MW Saint-Brieuc offshore wind farm (Ailes Marines / Iberdrola-led) to the French transmission network. The system comprises two 225 kV three-core subsea export cables (each ~33.5 km; ~67 km total offshore) from the wind farm’s...
Contract value awarded by RTE to Nexans for supply and installation of the Saint-Brieuc export cables (67 km offshore + 93 km onshore) and IMR services; this is the Nexans...
1 Cost inflated in local currency then converted to euros (where applicable).
Cable Specifications
Saint-Brieuc export cable system
Caroual Beach, Erquy, Côtes-d'Armor, France
2 × 225 kV HVAC · 496 MVA · 126.5 km
System:2 × 225 kV HVAC
Power rating:496 MVA
Route length:126.5 km(33.5 subsea · 93 land)
Burial depth:
The two 225 kV subsea export cables were buried and protected using jetting and mechanical trenching techniques: Nexans installed the cables and used its Capjet jet-trenching system to trench the...
Fibre optic:
The export cable design incorporates an embedded fibre-optic element intended for remote health monitoring and the transmission of information between the offshore wind farm (offshore substation) and the onshore base....
Collector Stations
Offshore Platform (FR)
Saint-Brieuc offshore substation (Bay of Saint‑Brieuc, English Channel), France