Orkney Caithness 132kV Connection
The project requires the construction of a new subsea cable between Orkney and Caithness to transfer the power from the marine generators situated off the West coast of the mainland of Orkney.
The project may consist of two phases:
Phase1 – 132kV AC connection to Caithness
Phase2 – HVDC connection to Peterhead
Phase 1
Phase 1 will provide enough capacity to enable the marine developers to test and develop the technology but will not provide enough long term capacity for the full potential of the leased areas. It will consist of:
- Construction of a new 132kV AC (Alternating Current) enclosed substation on the West Coast of Orkney Mainland to provide a connection point for the marine developers.
- Installation of a new 132kV buried cable from the substation to a landfall point on the West coast of Orkney Mainland.
- A directional drilled landfall on Orkney
- Installation of a a 132kV subsea cable between Orkney and Caithness
- A landfall in Caithness close to Dounreay – to be either:
- Directional drill or
- Traditional cable landfall in a natural inlet.
- Installation of a new buried 132kV cable from Caithness landfall to the existing Dounreay substation.
Phase 2 – by 2020/2021
Phase 2 will be required if there is sufficient demand from the marine developers for capacity above that provided by Phase 1.
Development associated with Phase 2 will include a converter station on orkney (adjacent to the proposed substation).
For further information please visit – http://www.sse.com/OrkneyCaithness/
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