Maps recommendations list

New network need from Loch Buidhe to Spittal via Brora and Dunbeath. The 400 kV substation at Spittal is established as part of reinforcement option PSDC. The 400 kV substation at Loch Buidhe is established as part of reinforcement option BLN4. At Brora and Dunbeath establish new 400 kV substations and install new 400/132 kV SGTs to connect to the existing 132 kV network.

Thermal upgrade of the Spennymoor to Norton circuits to allow them to operate at higher temperatures and increase their thermal rating.

Replace the conductors in the 400 kV Spennymoor – Norton double circuit with higher-rated conductors to increase their thermal ratings.
This project had a Hold recommendation in the NOA2021/22 Refresh and continues to be recommended as Hold.

Leading The Way: 2035

System Transformation: 2036

Replace the conductors in the 400 kV Spennymoor – Stella West double circuit with higher-rated conductors to increase their thermal ratings.
This project had a Hold recommendation in the NOA2021/22 Refresh and continues to be recommended as Hold.

Leading The Way: 2035

System Transformation: 2036

Thermal upgrade of the Stella West to Spennymoor circuits to allow them to operate at higher temperatures and increase their thermal rating.

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

Install a power flow control device on the Tealing to Westfield 275 kV circuit 1 at Tealing substation to optimise the power flow across the Tealing to Westfield 275 kV double circuits 1 and 2, under a double circuit loss of the Alyth to Kincardine 400 kV double circuit.

Construct a High Voltage Direct Current (HVDC) subsea link from from the SPT area, to the South Humber area, in the north east of England, together with associated onshore works.

Install a power control device along the Tilbury to Grain 400 kV overhead line route. This would improve the capability to control the power flows South East of the transmission network

Replace the conductors on the existing circuits between Hinkley Point, Taunton and Exeter with higher capacity conductors