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NOA Investment Recommendations
Network Options Assessment (NOA)
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Download the NOA publication

Download the latest NOA 2021/22 interactive report.

Read the NOA report

The following gives a brief snapshot of our recommendations. You can read more about our methodology which is reviewed annually by Ofgem, on our NOA methodology page.

Investment recommendations

Key: 
ProceedAn option is critical to our future planning. Investment should be made in the next financial year to ensure the option’s earliest in-service date remains on course.
DelayAt this time, it is not economically viable to proceed with this option. The option’s delivery should be delayed by one year.
HoldAn option is important and required in future, however due to the lead time in delivering this option, no investment is required this year. Therefore, this option can be delayed by at least one year.
StopAn option is not currently required in our future plan. Delivery should be stopped and not be continued.
Do not startAn option is not currently required in our future plan. Delivery work should not begin.
NewNew option submitted for NOA 2021/22
*Decision reached after consultation with the NOA committee
Scotland and North of England

For the Scotland and north of England region, we have assessed 92 options.

CodeOption DescriptionEISD
(NOA 2021/22)
Recommendation
(NOA 2021/22)
BBNCBeauly – Blackhillock 400 kV Double Circuit addition2030Proceed*
BDUPBeauly - Denny 275 kV circuit Upgrade to 400 kV2029Hold
BLN2Beauly to Loch Buidhe 275 kV reinforcement2030Proceed*
BLN4Beauly to Loch Buidhe 400 kV reinforcement2031Do not start (New)
BPNCBlackhillock - Peterhead 400 kV Double Circuit addition2031Proceed*
CBEUCreyke Beck advanced ratings to increase the thermal capability of the line from Creyke Beck to Keadby based upon a dynamic ratings principle2024Stop
CDHWCellarhead to Drakelow circuits thermal uprating2023Proceed
CDP1Power flow control device along Cellarhead to Drakelow2024Stop
CDP2Power flow control device along Cellarhead to Drakelow2024Hold
CDP3Additional alternative power flow control devices along Cellarhead to Drakelow2024Hold
CGNCA new 400 kV double circuit from North Humber to South Humber2031Proceed
CKPCPower flow control device along Creyke Beck to Keadby to Killingholme2024Hold
CLNCNew Cumbria to Lancashire reinforcement2034Proceed
CMNCSouth east Scotland to north west England AC onshore reinforcement2033Proceed
CRPCPower flow control device along Cottam to West Burton2024Hold
CS05Commercial solution for Scotland and the north of England - stage 12024Proceed
CS06Commercial solution for Scotland and the north of England - stage 22024Proceed
CS11Commercial solution for the north of England - stage 12024Proceed (New)
CS12Commercial solution for the north of England - stage 22024Proceed(New)
CTP2Alternative power flow control device along Creyke Beck to Thornton2024Stop
CVUPClydesmill to Strathaven 400 kV reinforcement2031Do not start
CWPCPower flow control device along Cottam to West Burton2024Hold
DBNCBeauly to Dounreay 400 kV Double Circuit addition2031Proceed*(New)
DEP1Additional power flow control devices along the Drax - Eggborough 1 400 kV circuit2025Hold
DEPCPower flow control device along Drax to Eggborough2024Hold
DFREReconductor Drax to Fenwick Tee 400 kV circuit2026Hold (New)
DLNCLoch Buidhe to Dounreay 400 kV reinforcement2031Do not start (New)
DLRELoch Buidhe - Dounreay 275 kV Double Circuit OHL reconductoring2028Stop
DLUPWindyhill-Lambhill-Denny North 400 kV reinforcement2029Proceed
DNEUDenny North 400/275 kV second supergrid transformer2025Hold
DREUGenerator circuit breaker replacement to allow Thornton to run a two-way split2025Proceed
DWNODenny to Wishaw 400 kV reinforcement2028Proceed
DWUPKincardine - Wishaw 400 kV reinforcement2026Proceed
E2DCEastern subsea HVDC link from Torness to Hawthorn Pit2027Proceed
E4D3Eastern Scotland to England link: Peterhead to Drax offshore HVDC2029Proceed
E4L5Eastern Scotland to England 3rd link: Peterhead to the South Humber offshore HVDC2031Proceed
EAM1225 MVAr MSCs at Eaton Socon2025Hold
EAM2225 MVAr MSCs at Eaton Socon2025Hold
EBREReconductor Enderby to Patford Bridge to East Claydon 400 kV Double Circuit2026Hold (New)
EDEU400 kV upgrade of Brinsworth to Chesterfield Double Circuit and Chesterfield to High Marnham Double Circuit  New High Marnham and Chesterfield 400 kV substations2027Hold (New)
EDN2New Chesterfield to Ratcliffe-on-Soar 400 kV Double Circuit2032Hold (New)
EDNC400 kV upgrade of Brinsworth to Chesterfield Double Circuit and New Ratcliffe to Chesterfield 400 kV Double Circuit 2033Stop
EHREElvanfoot to Harker reconductoring2028Hold
FMHWFeckenham to Minety circuit thermal uprating2024Hold
FMPCPower flow control device along Feckenham to Minety2025Stop
GCHWCottam to Market Harborough to Grendon circuit thermal uprating2025Hold (New)
GWNCA new 400 kV Double Circuit between the South Humber and south Lincolnshire2031Proceed
HAE2Harker supergrid transformer 6 replacement2023Proceed
HAEUHarker supergrid transformer 5 and supergrid transformer 9A banking arrangement2022Proceed
HFREReconductor Harker to Fourstones and Fourstones to Stella West circuits2026Hold
HMNSNew High Marnham 400 kV substation2031Do not start (New) 
HSR1Reconductor Harker to Stella West2027Hold
JTHWHigh Marnham to Thurcroft to West Melton circuit thermal uprating2024Do not start (New)
KBREKnocknagael - Blackhillock 275 kV Double Circuit OHL reconductoring2027Stop
KCEUCreyke to Keadby to Killingholme circuits thermal uprating2022Hold (New)
KCREReconductor Cottam to Keadby 400 kV Double Circuit2025Proceed (New)
KWHWKeadby to West Burton circuits thermal uprating2024Proceed
KWP2Additional power flow control devices along the Keadby to West Burton number 1 circuit2025Hold (New)
KWPCPower flow control device along Keadby to West Burton2024Proceed
LBREBeauly - Loch Buidhe 275 kV Double Circuit OHL reconductoring2028Hold*
LCU2Eastern B5 400 kV reinforcement2031Hold
LNP1Additional power flow control devices along the Lackenby to Norton single circuit2024Do not start
LNREReconductor Lackenby to Norton 400 kV single circuit2024Hold
LRNCSouth Lincolnshire to Rutland reinforcement2032Hold
LWUPKincardine 400 kV reinforcement2027Proceed
MRP2Additional power flow control devices at both Harker and Penwortham2022Proceed
NEMS225 MVAr MSCs within the north east region2025Hold
NEP1Power flow control device along Blyth to Tynemouth and Blyth to South Shields2025Proceed
NEPCPower flow control device along Blyth to Tynemouth and Blyth to South Shields2024Proceed
NOR4Reconductor 1375km of Norton to Osbaldwick number 2 400 kV circuit2024Hold
NOR5Reconductor 1375km of Norton to Osbaldwick number 1 400 kV circuit to a higher rated conductor2024Hold
NVUPNeilston to Strathaven 400 kV reinforcement2030Do not start (New)
OPN2A new 400 kV Double Circuit between the existing Norton to Osbaldwick circuit and Poppleton and relevant 275 kV upgrades2027Proceed
PSDCSpittal - Peterhead HVDC reinforcement2030Proceed
PWMSTwo 225MVAr MSCs at Penwortham2025Hold
SBDCSpittal - Blackhillock HVDC reinforcement2030Stop
SCREReconductor Cottam to Staythorpe number 1 400 kV circuit2025Hold (New)
SHNSUpgrade substation in the South Humber area2031Proceed
SLU2Loch Buidhe to Spittal 275 kV reinforcement2030Proceed*
SNHWSpennymoor to Norton circuit thermal uprating2024Hold
SSHWStella West to Spennymoor circuit thermal uprating2024Hold
TDP2Additional power flow control device along Drax to Thornton2025Hold
TDPCPower flow control device along Drax to Thornton2024Hold
TFPCPower flow control device on TW1 circuit2025Hold
TGDCEastern subsea HVDC Link from south east Scotland to South Humber area2031Proceed
TKU2Alternative East Coast Onshore Phase 2 reinforcement2031Do not start
TKUPEast Coast Onshore 400 kV Phase 2 reinforcement2032Hold
TLNOTorness to north east England AC onshore reinforcement2037Proceed
TMPCPower flow control device along Thorpe Marsh to West Melton number 1 circuit2024Do not start (New)
VEREStrathaven - Elvanfoot OHL Conductor replacement2030Do not start (New)
VSREStrathaven - Smeaton OHL Conductor replacement2027Proceed* (New)
WRREReconductor West Burton to Ratcliffe-on-Soar circuit2028Hold
South England

For the South England region, we have assessed 48 options.

CodeOption DescriptionEISD
(NOA 2021/22)
Recommendation
(NOA 2021/22)
AENCA new 400 kV double circuit in north East Anglia2030Proceed
ATNCA new 400 kV double circuit in south East Anglia2030Proceed
BFHWBramley to Fleet circuits thermal uprating2024Hold
BFPCPower flow control device along Bramley to Fleet2025Hold
BFREBramley to Fleet reconductoring2025Hold
BMM2225 MVAr MSCs at Burwell Main2022Proceed
BNRCBolney and Ninfield additional reactive compensation2025Stop
BPREReconductor the newly formed second Bramford to Braintree to Rayleigh Main circuit2028Proceed
BRREReconductor remainder of Bramford to Braintree to Rayleigh route2023Proceed
BTNOA new 400 kV double circuit between Bramford and Twinstead2028Proceed
BWREReconductor Barking to West Ham double circuit2025Hold
CS07Commercial solution for East Anglia - stage 12025Proceed
CS08Commercial solution for East Anglia - stage 22025Proceed
CTREReconductor remainder of Coryton South to Tilbury circuit2022Proceed
ESC1Second Elstree to St John’s Wood 400 kV circuit2026Hold
HBUPUprate Bridgewater to 400 kV and reconductor the route to Hinkley2024Hold
HWUPUprate Hackney, Tottenham and Waltham Cross 275 kV to 400 kV2027Proceed
IFR1Feckenham to Ironbridge circuit reconductoring2025Hold
MBHWBramley to Melksham circuits thermal uprating2024Hold
MBREBramley to Melksham reconductoring2026Hold
NBEUThermal upgrade for Bramford and Norwich 400 kV substations2025Hold (New)
NBREReconductor Bramford to Norwich double circuit2023Proceed
NIM1225 MVAr MSCs at Ninfield2025Stop
NIM2225 MVAr MSCs at Ninfield2025Stop
NOM1225 MVAr MSCs at Norwich2025Hold
NOM2225 MVAr MSCs at Norwich2025Hold
NTP1Power flow control device north of Tilbury 400 kV2024Proceed
NTP2Additional power flow control device north of Tilbury 400 kV2025Do not start (New)
PEM1225 MVAr MSCs at Pelham2024Proceed
PEM2225 MVAr MSCs at Pelham2024Proceed
RHM1225 MVAr MSCs at Rye House2024Proceed
RHM2225 MVAr MSCs at Rye House2024Proceed
RTREReconductor remainder of Rayleigh to Tilbury circuit2022Proceed
SCD1New offshore HVDC link between Suffolk and Kent option 12030Proceed
SCD2New offshore HVDC link between Suffolk and Kent option 22032Hold
SEEUReactive compensation protective switching scheme2024Proceed
SER1Elstree to Sundon reconductoring2024Proceed
SER2Elstree to Sundon 2 circuit turn-in and reconductoring2026Hold
TENCThames Estuary reinforcement2033Stop
TGP1Power flow control device along Tilbury to Grain2024Proceed
THREReconductor Hinkley Point to Taunton double circuit2026Stop
TKP1Power flow control device along Tilbury to Kingsnorth2024Hold
TKRETilbury to Grain and Tilbury to Kingsnorth upgrade2028Proceed
WAM1225 MVAr MSCs at Walpole2025Proceed
WAM2225 MVAr MSCs at Walpole2025Proceed
WCC1Cable replacement at Hinksey2027Hold
WSEUThermal upgrade for Sundon and Wymondley 400 kV substation2024Hold
WYTIWymondley turn-in2024Hold
Wales

For Wales, we have assessed 4 options.

CodeOption DescriptionEISD
(NOA 2021/22)
Recommendation
(NOA 2021/22)
PTC1Pentir to Trawsfynydd cable replacement2027Hold
PTNONorth Wales reinforcement2028Hold
CS20Commercial solution for north of Wales - stage 12031Hold (New)
CS21Commercial solution for north of Wales - stage 22031Hold (New)
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Supporting document

This year we have published Appendix A, which combines our economic analysis results and list of options.

Download Appendix A

Discover more about the NOA

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Network Options Assessment (NOA)

The NOA is our recommendation for which reinforcement projects should receive investment. These projects are major electricity transmission network reinforcements as defined in the NOA methodology.

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NOA for Interconnectors

NOA for Interconnectors (NOA IC) highlights the potential benefits of efficient levels of interconnection capacity between GB and other markets.

NOA methodology

As a result of stakeholder feedback, we’ve moved the methodology and other content from the publication to our website. This has made the NOA shorter and easier to access.

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Key documents

Have a look at our previous NOA reports, NOA methodologies, NOA Committee minutes and other relevant documents.

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