Maps recommendations list
Codes
RANC
New circuit within South East England |
Type: Develop new circuits
Status: Scoping
Boundaries:
Region: South Wales and South 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 |
RHM1
225 MVAr MSCs at Rye House |
Type: Voltage and stability constraints
Status: Strategic Optioneering
Boundaries: EC5E; LE1
Region: South Wales and South England |
One new 225 MVAr switched capacitors (MSCs) at Rye House would provide voltage support through East Anglia and North London as system flows increase in future.
|
NOA 2021/22 Refresh Recommendation: Proceed - Critical |
RHM2
225 MVAr MSCs at Rye House |
Type: Voltage and stability constraints
Status: Strategic Optioneering
Boundaries: EC5E; LE1
Region: South Wales and South England |
One new 225 MVAr switched capacitors (MSCs) at Rye House would provide voltage support through East Anglia and North London as system flows increase in future.
|
NOA 2021/22 Refresh Recommendation: Proceed - Critical |
RTRE
Reconductor remainder of Rayleigh to Tilbury circuit |
Type: Upgrade existing circuits
Status: Construction
Boundaries: LE1; SC1Rev
Region: |
Replace the conductors on the remaining sections of the Rayleigh to Tilbury circuit, which have not recently been reconductored with higher-rated conductors. These would increase the circuit’s thermal rating.
|
NOA 2021/22 Refresh Recommendation: Proceed - Critical |
SCD1
New Offshore HVDC link between Suffolk and Kent option 1 |
Type: Develop new circuits
Status: Design/development and consenting
Boundaries: EC5E; EC5I; LE1; SC1.5Rev; SC1Rev; SC2Rev; SC3Rev
Region: South Wales and South England |
Construct a new offshore 2 GW HVDC circuit between Suffolk and Kent.
|
NOA 2021/22 Refresh Recommendation: HND essential option |
SEEU
Reactive compensation protective switching scheme |
Type: Operational and reduced-build options
Status: Strategic Optioneering
Boundaries: SC2; SC2Rev
Region: |
Provide a new communications system, and other equipment, to allow existing reactive equipment to be switched in or out of service very quickly following transmission system faults. This would allow better control of system voltages following faults.
|
NOA 2021/22 Refresh Recommendation: Proceed - Critical |
SER1
Elstree to Sundon reconductoring |
Type: Upgrade existing circuits
Status: Strategic Optioneering
Boundaries: LE1; SC1Rev
Region: |
Replace the conductors from Elstree to Sundon circuit 1 with higher-rated conductors to increase their thermal rating.
|
NOA 2021/22 Refresh Recommendation: HND essential option |
SER2
Elstree to Sundon 2 circuit turn-in and reconductoring |
Type: Upgrade existing circuits
Status: Strategic Optioneering
Boundaries: EC5E; LE1; SC1Rev
Region: South Wales and South England |
Turn-in the Elstree to Sundon circuit 2, which currently passes the Elstree 400 kV substation, to connect to it and replace the conductor with a higher-rated conductor. This would ensure better load flow sharing and increase their thermal rating.
|
NOA 2021/22 Refresh Recommendation: HND essential option |
SGRE
Reconductor Grendon to Sundon 400kV double circuit |
Type: Upgrade existing circuits
Status: Strategic Optioneering
Boundaries: LE1;
Region: South Wales and South England |
Replace the conductors on the existing circuit between Grendon and Sundon with higher capacity conductors
|
NOA 2021/22 Refresh Recommendation: Proceed - Critical |
SHNS
Upgrade substation in the south Humber area |
Type: Build a new substation or reconfiguring an existing substation
Status: Design/development and consenting
Boundaries: B6I; B7aI; B8; B9
Region: North England |
Substation upgrade of the 400 kV South Humber substation equipment.
|
NOA 2021/22 Refresh Recommendation: HND essential option |