Codes

AENC
A new 400 kV double circuit in north East Anglia
Type: Develop new circuits
Status: Design/development and consenting
Boundaries: EC5E; EC5I; LE1; SC1Rev
Region: East England
Construct a new 400 kV double circuit in north East Anglia to facilitate power transfer requirements across the relevant boundaries. Substation works are required to accommodate the new circuits.
NOA 2021/22 Refresh Recommendation:
HND essential option
ATNC
A new 400 kV double circuit in south East Anglia
Type: Develop new circuits
Status: Design/development and consenting
Boundaries: EC5E; EC5I; LE1; SC1Rev
Region: East England
Construct a new 400 kV double circuit in south East Anglia to facilitate power transfer requirements across the relevant boundaries. Substation works are required to accommodate the new circuits, including a new substation to facilitate customer connections.
NOA 2021/22 Refresh Recommendation:
HND essential option
BBNC
Beauly to Blackhillock 400 kV double circuit addition
Type: Develop new circuits
Status: Project not started
Boundaries: B1aF; B2F; B4F;
Region: Scotland
Construct a new 400 kV double circuit between Beauly and Blackhillock. At both sites extend the 400 kV busbar arrangements to allow for the connection of two additional bays.
NOA 2021/22 Refresh Recommendation:
HND essential option
BDUP
Uprate the Beauly to Denny 275 kV circuit to 400 kV
Type: Voltage and stability constraints
Status: Project not started
Boundaries: B1aE; B1aF; B1aI; B2E; B2F; B2I; B4E; B4F; B4I; B5; B6SPT
Region: Scotland
Uprating of the 275 kV side of the existing Beauly-Denny circuit to 400 kV operation between SHE Transmission and SPT. Substation works will be required at Beauly, Fasnakyle, Fort Augustus, Kinardochy, Braco West and Denny North. The Errochty I/T scheme (implemented under ECU2) shall be amended to trip the 400/132 kV supergrid transformer (SGTs) at Kinardochy under loss of the 400 kV double circuit south of Kinardochy.
NOA 2021/22 Refresh Recommendation:
Hold
BFHW
Bramley to Fleet circuits thermal uprating
Type: Upgrade existing circuits
Status: Strategic Optioneering
Boundaries: LE1; SC1.5Rev; SC1Rev; SC2Rev
Region: South Wales and South England
Thermal Upgrade of the Bramley to Fleet circuits to allow them to operate at higher temperatures, and increase their thermal rating.
NOA 2021/22 Refresh Recommendation:
Hold
BFPC
Power control device along Bramley to Fleet
Type: Control power flow
Status: Strategic Optioneering
Boundaries: LE1; SC1.5Rev; SC1Rev; SC2Rev
Region: South Wales and South England
Install a power control device along the Bramley to Fleet 400 kV overhead line route. This would improve the capability to control the power flows across the South Coast of the transmission network
NOA 2021/22 Refresh Recommendation:
Hold
BFRE
Bramley to Fleet reconductoring
Type: Upgrade existing circuits
Status: Strategic Optioneering
Boundaries: LE1; SC1.5Rev; SC1Rev; SC2Rev
Region: South Wales and South England
Replace the conductors in the Bramley to Fleet circuits with higher-rated conductors to increase their thermal ratings.
NOA 2021/22 Refresh Recommendation:
Hold
BLN4
Beauly to Loch Buidhe 400 kV reinforcement
Type: Develop new circuits
Status: Project not started
Boundaries: B0; B1aE; B1aF; B1aI; B2E; B2F; B2I; B4E; B4F; B4I
Region: Scotland
This project is to reinforce the existing BSW/BSE Beauly - Shin - Loch Buidhe 132 kV double circuit overhead line with a higher capacity 400 kV double circuit overhead line
NOA 2021/22 Refresh Recommendation:
HND essential option
BMM2
Install new MSCs at Burwell Main
Type: Voltage and stability constraints
Status: Design/development and consenting
Boundaries: EC5E; EC5I; LE1; SC1Rev
Region: East England
Install new MSCs at Burwell Main which will provide voltage support to the East Anglia area as system flows increase in future.
NOA 2021/22 Refresh Recommendation:
HND essential option
BPNC
A new 400 kV double circuit between Blackhillock and Peterhead
Type: Develop new circuits
Status: Strategic Optioneering
Boundaries: B1aE; B1aF; B1aI; B2E; B2F; B2I; B4E; B4F; B4I
Region:
Establish a new 400 kV double circuit overhead line from Blackhillock to Peterhead via New Deer. Peterhead and Blackhillock substations will require extension to accomodate termination of the new double circuit. This reinforcement is required as onshore works to faciliate the 2nd Eastern HVDC Link from Peterhead (NOA option reference E4L5)
NOA 2021/22 Refresh Recommendation:
HND essential option