Red7 Offshore at Hornsea 1 OWF

Red7 is delighted to announce the award of a prestigious contract to undertake seabed preparation at a number of offshore locations along the three export cable routes at the Hornsea 1 Offshore Wind Farm (OWF) site. 

Hornsea 1 OWF is located in the North Sea off the coast of East Yorkshire and is owned by Ørsted.  The centre of the offshore site is approximately 140kl east of the Humber Estuary with an average water depth of 30m below LAT and 27m along the export cable route, and with a maximum of 60m where the routes cross Silver Pit.

The 89m DPII vessel EDT Jane was chosen for her active heave compensated (AHC) 70t main crane along with her excellent sea-keeping capabilities.  With an excellent reputation already in the Oil & Gas sector, EDT Jane is equally at home working within the growing offshore renewables sector.

Red7’s scope of work includes a number of WROV asset inspections including a 24″ gas pipeline, 10″ fluid line and a 2.5″ power cable.  As part of the verification surveys, several hundred boulders are also being relocated, including placement of concrete mattresses over each asset along the centre line of the export cables.  Additional work will include removal and relocation of any unexploded ordnance (UXO) by ROV, which is found within the cable corridors, including ad-hoc ROV inspections.

Due to the broad nature of the operation, Red7 had to meet the demanding standards of not on its direct clients within the Ørsted project itself, but additionally those standards as set by Perenco, Shell and Conoco Philips who’s assets are being crossed over by the three wind farm export cables.