Living Stone connects Moray East
Lay Vessel (CLV) Living
kicking off array cable installation at the Moray
wind farm. Living
from Hartlepool for the Outer Moray Firth on 30th September. This first
array cable installation campaign is expected to last eight weeks.
The cable pull ins and free lay of inter-array cables between the turbine
locations will be carried out by the
vessel, as well
as WROV surveys once the cable has been installed. Grand Canyon and Deep
Cygnus will be on hand, providing support. They will be operating a walk
to work system for personnel access to the turbine locations and transferring
equipment to assist the cable pull ins. Both vessels will be supported
by the Crew Transfer Vessel World Scirocco, which will assist in personnel
transfers to the turbines and carry out crew changes for both vessels.
DP3 capability and two turntables below deck, each with a 5,000 tonne cable
capacity. It can carry, transport and install more than 200km of cable
in a single trip.
Boskalis was awarded a EUR 110 million contract for the supply and installation
of the inter-array cables in 2018. The project scope includes the design,
supply, installation and burial, as well as termination and testing, of
one hundred and two 66kV inter-array cables. JDR was bought onboard to
supply ~156 km of array cables, plus 19.6 km of interconnector cables between
substations. Overall array cable installation will be carried out over
three campaigns during 2020 and 2021.
Whilst array cable installation is only just starting, export cable works
are nearing completion. All three export cables have been laid. The second
export cable (OEC2) has been pulled into the second offshore substation
(OSP2). The other two export cables are in wet storage (OEC1&3) on
the seabed. Vessel NKT
is currently retrieving the third export cable (OEC3) in readiness for
pull in at the third offshore substation (OSP3). Vessel Havila
currently burying OEC2 subsea power cable below the seabed, via means of
remotely operated trenching vehicles.
Export cable laying is expected to be completed by 3rd October 2020, with
trenching works concluding in early November. A separate campaign to install
remedial protection over the cables on any remaining unburied/unprotected
sections will be undertaken at a later date.
To date, 38 jackets have also been installed at the pre-piled locations
by Seajacks Scylla. Installation of the 100 MHI Vestas V164-9.5
will start in early 2021, with full commissioning expected in 2022.
Located 22 km off the coast of Scotland, the 950 MW Moray
is the first of two wind farms to be developed in the Outer Moray Firth
Zone. Development is being led by a joint venture between Diamond Green
Limited (33.4%), EDPR (33.3 %), ENGIE (23.3%) and CTG (10%). The project
secured a Contract for Difference of £57.50/MWh from the UK Government
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