Codes
DSUP
Establish further connection capacity between Dounreay, Banniskirk (Spittal), and Thurso |
Type: Upgrade existing circuits
Status: Design/development and consenting
Boundaries:
Region: Scotland |
This project is currently required to enable the development of a robust and reliable offshore network connection and will be reappraised in the detailed design stage
|
NOA 2021/22 Refresh Recommendation: Enabling works |
DWNO
Denny to Wishaw 400 kV reinforcement |
Type: Develop new circuits
Status: Design/development and consenting
Boundaries: B1aE; B1aF; B1aI; B2E; B2F; B2I; B4E; B4F; B4I; B5; B6SPT
Region: Scotland |
Establish a new 400kV OHL from Bonnybridge substation to an existing OHL north of Glenmavis, together with associated substation works, conductor replacement and voltage uprating on existing OHL routes.
|
NOA 2021/22 Refresh Recommendation: Proceed - Critical |
DWUP
Kincardine - Wishaw 400 kV reinforcement |
Type: Voltage and stability constraints
Status: Design/development and consenting
Boundaries: B1aE; B1aF; B1aI; B2E; B2F; B2I; B4E; B4F; B4I; B5; B6SPT
Region: Scotland |
Establish a 400kV single circuit corridor south from Kincardine North, on existing overhead line (OHL) routes, to Wishaw substation (or Clyde’s Mill substation).
|
NOA 2021/22 Refresh Recommendation: Proceed - Critical |
E2DC
Eastern subsea HVDC link from Torness to Hawthorn Pit |
Type: Develop new circuits
Status: Planning/consenting
Boundaries: B5; B6E; B6F; B6I; B6SPT; B7aE; B7aI; B8
Region: Scotland |
Construct a High Voltage Direct Current (HVDC) subsea link from a new Branxton 400kV Substation (near Torness), to Hawthorn Pit, in the north east of England. Branxton will facilitate the connection of offshore renewable developments as well as the reinforcement of capacity between Scotland and England.
|
NOA 2021/22 Refresh Recommendation: HND essential option |
E4D3
Eastern Scotland to England link: Peterhead to Drax subsea HVDC link |
Type: Develop new circuits
Status: Planning/consenting
Boundaries: B1aE; B1aF; B1aI; B2E; B2F; B2I; B4E; B4F; B4I; B5; B6I; B6SPT; B7aE; B7aI; B8
Region: Scotland |
Construct a High Voltage Direct Current (HVDC) subsea link from Peterhead in the north east of Scotland to Drax in the Yorkshire area of England. The onshore works involve the construction of AC/DC converter stations and the associated AC works at Peterhead and Drax.
|
NOA 2021/22 Refresh Recommendation: HND essential option |
E4L5
Eastern Scotland to England 3rd link: Peterhead to the south Humber subsea HVDC link |
Type: Develop new circuits
Status: Planning/consenting
Boundaries: B1aE; B1aF; B1aI; B2E; B2F; B2I; B4E; B4F; B4I; B5; B6I; B6SPT; B7aI; B8; B9
Region: Scotland |
Construct a High Voltage Direct Current (HVDC) subsea link from Peterhead to a location in the South Humber area. The link will involve substation works and HVDC converter stations at both Peterhead and the South Humber. In the SHE Transmission area, BPNC is the required onshore circuit reinforcement to facilitate this additional 2 GW link. Circuit upgrades will also be required in the South Humber area.
|
NOA 2021/22 Refresh Recommendation: HND essential option |
E4L6
Refine one of the proposed offshore HVDC link planned between Scotland and Eastern England with a third connection into Lincolnshire |
Type: Develop new circuits
Status: Scoping
Boundaries:
Region: East England |
This project is currently required to enable the development of a robust and reliable offshore network connection and will be reappraised in the detailed design stage
|
NOA 2021/22 Refresh Recommendation: Enabling works |
EBRE
Reconductor Enderby to Patford Bridge to East Claydon 400 kV double circuit |
Type: Upgrade existing circuits
Status: Strategic Optioneering
Boundaries: B8; B9
Region: East England, South Wales and South England |
The existing Enderby – Patford Bridge – East Claydon 400 kV double circuit comprises of a combination of 4x400mm² Quad Zebra and 2 x 500mm² Rubus 400 kV overhead lines on L2/2 single circuit tower. This limits the rating of the circuit to 1687 MVA/2009 MVA (pre/post fault)
|
NOA 2021/22 Refresh Recommendation: HND essential option |
ECRE
Errochty - Clunie 132kV reconductoring. |
Type: Upgrade existing circuits
Status: Design/development and consenting
Boundaries: B2; B4;
Region: Scotland |
Replace the conductors on a short section of the existing circuit between Errochty and Clunie with higher capacity conductors
|
NOA 2021/22 Refresh Recommendation: Proceed - Maintain |
ECSC
Installation of series compensation on East Anglia Coastal Node to Tilbury 400kV circuit |
Type: Build a new substation or reconfiguring an existing substation
Status: Scoping
Boundaries: EC5E
Region: East England |
Installation of series compensation on the existing circuit between East Anglia Coastal Node and Tilbury
|
NOA 2021/22 Refresh Recommendation: Proceed - Maintain |