2021 was rounded off in great fashion as OPTIMUM accompanied RTE in the successful completion of the trenchless drilling section of the Calvados offshore windfarm project on the Normandy coast.
No less than 5 dual HDD crossings, from 100m to 430m long, were drilled through Caen limestone to carry the 225 kV cables under 2 roads, a dual carriageway, a canal and the river Orne. This trenchless section is a key step in connecting the offshore wind turbines to the electricity substation.
OPTIMUM engineers reviewed the operating methods of each of the 3 drilling contractors involved, BIR, COQUART & FILS and FNO, and then supported RTE with a G4 works supervision mission throughout the 10-month-long drilling operations.
Many thanks to RTE for the opportunity to be part of another big renewables project and to the drilling contractors for their constructive dialogue over the past year.
