Electrical grid

Electric Power Grids: Aerial-underground power transmission lines face numerous technological challenges. Concept’o actively participates in studies and projects for crossings under structures (PSO) for RTE OFFSHORE WIND FARM PROGRAM: Connection of France’s first offshore wind farm (SAINT-NAZAIRE) from 2019 to 2020: Concept’O designed and oversaw the construction (project management) of the 12 double directional boreholes for the onshore section of the connection to the Saint-Nazaire offshore wind farm, (the first French offshore wind farm to be built)

• 12 boreholes (130 m to 370 m) in clay and gneiss for the connection of the Saint-Nazaire offshore wind farm

S3REnR PROGRAM: FLEAC–VILLEGATS (90 kV) Connection (2019–2020): Concept’O conducted the design and provided technical oversight (project management) for the two directional drillings on the Fleac–Villegats line

• Two boreholes (750 m and 550 m) in massive limestone for two crossings of the Charente River (Vindelle and Luxé)