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SP Energy Networks

Embedded Capacity Register >1MW, September 2026 edition

773sites of 1 MW and over
17.1 GWcapacity
6.3 GWconnected (483 sites)
10.8 GWaccepted to connect (290 sites)

Capacity by edition month

Total capacity of sites of 1 MW and over, month by month, from SPEN's own files only.

0 GW5 GW10 GW15 GW20 GWMar 2026March 2026: 6.2 GW connected, 10.5 GW accepted to connect (SPEN's own edition)April 2026: 6.3 GW connected, 10.4 GW accepted to connect (SPEN's own edition)May 2026: 6.2 GW connected, 10.5 GW accepted to connect (SPEN's own edition)June 2026: 6.2 GW connected, 11.3 GW accepted to connect (SPEN's own edition)July 2026: 6.2 GW connected, 10.8 GW accepted to connect (SPEN's own edition)August 2026: 6.3 GW connected, 10.8 GW accepted to connect (SPEN's own edition)September 2026: 6.3 GW connected, 10.8 GW accepted to connect (SPEN's own edition)

ConnectedAccepted to connectSPEN's own edition

The figures, month by month
Edition monthSourceSitesConnectedAccepted to connectTotal
September 2026SPEN's own edition7736.3 GW10.8 GW17.1 GW
August 2026SPEN's own edition7756.3 GW10.8 GW17.1 GW
July 2026SPEN's own edition7696.2 GW10.8 GW17 GW
June 2026SPEN's own edition7816.2 GW11.3 GW17.5 GW
May 2026SPEN's own edition7666.2 GW10.5 GW16.7 GW
April 2026SPEN's own edition7666.3 GW10.4 GW16.7 GW
March 2026SPEN's own edition7676.2 GW10.5 GW16.7 GW

What changed between editions

Changes to sites found in both of two consecutive monthly editions.

August 2026 edition to September 2026 edition 1 change

742 sites matched. 64 sites couldn't be matched between the two editions, because their details changed or they appear in only one.

  • Benthead Farm Solar and BESSCentral and Southern Scotland (SPD)Capacity changed from 70.4 MW to 113.43 MW
July 2026 edition to August 2026 edition 17 changes

739 sites matched. 66 sites couldn't be matched between the two editions, because their details changed or they appear in only one.

  • Bentley MotorsMerseyside, Cheshire and North Wales (SPM)Customer changed from Bentley Motors to QuiNotas ENoergy UK
  • Bentley MotorsMerseyside, Cheshire and North Wales (SPM)Status changed from “connected” to “accepted to connect”
  • Getrag(Ford)Merseyside, Cheshire and North Wales (SPM)Technology changed from Solar to Gas and other fossil
  • Gladsmuir Wind FarmCentral and Southern Scotland (SPD)Capacity changed from 43.4 MW to 31 MW
  • Greengairs East WindfarmCentral and Southern Scotland (SPD)Capacity changed from 36 MW to 24 MW
  • Howpark WindfarmCentral and Southern Scotland (SPD)Capacity changed from 18.8 MW to 16 MW
  • JAGUAR LANDROVERMerseyside, Cheshire and North Wales (SPM)Capacity changed from 15.4 MW to 17.11 MW
  • JAGUAR LANDROVERMerseyside, Cheshire and North Wales (SPM)Technology changed from Gas and other fossil to Solar
  • KronospanMerseyside, Cheshire and North Wales (SPM)Customer changed from River Island to Kronospan Limited
  • KronospanMerseyside, Cheshire and North Wales (SPM)Status changed from “accepted to connect” to “connected”
  • KronospanMerseyside, Cheshire and North Wales (SPM)Technology changed from Solar to Gas and other fossil
  • Longhill Burn WindfarmCentral and Southern Scotland (SPD)Capacity changed from 36 MW to 50 MW
  • Mill Rig WindfarmCentral and Southern Scotland (SPD)Status changed from “accepted to connect” to “connected”
  • Moor FarmMerseyside, Cheshire and North Wales (SPM)Customer changed from SPF Moorfarm Ltd to G59 Projects
  • Sorbie WindfarmCentral and Southern Scotland (SPD)Capacity changed from 7.5 MW to 12 MW
  • ToyotaMerseyside, Cheshire and North Wales (SPM)Status changed from “connected” to “accepted to connect”
  • ToyotaMerseyside, Cheshire and North Wales (SPM)Technology changed from Solar to Gas and other fossil
June 2026 edition to July 2026 edition 23 changes

737 sites matched. 76 sites couldn't be matched between the two editions, because their details changed or they appear in only one.

  • Aberangell FarmMerseyside, Cheshire and North Wales (SPM)Technology changed from Wind to Solar
  • Airies WindfarmCentral and Southern Scotland (SPD)Capacity changed from 36.7 MW to 39.9 MW
  • Ardgowan EstateCentral and Southern Scotland (SPD)Capacity changed from 49.86 MW to 23.75 MW
  • Arran ViewCentral and Southern Scotland (SPD)Capacity changed from 40 MW to 50 MW
  • Bentley MotorsMerseyside, Cheshire and North Wales (SPM)Capacity changed from 8 MW to 14.1 MW
  • Diageo SolarCentral and Southern Scotland (SPD)Capacity changed from 4.1 MW to 3.395 MW
  • Garviland Wind FarmCentral and Southern Scotland (SPD)Capacity changed from 24 MW to 13.5 MW
  • Getrag(Ford)Merseyside, Cheshire and North Wales (SPM)Technology changed from Gas and other fossil to Solar
  • Greengairs East WindfarmCentral and Southern Scotland (SPD)Capacity changed from 24 MW to 36 MW
  • IcelandMerseyside, Cheshire and North Wales (SPM)Status changed from “connected” to “accepted to connect”
  • IcelandMerseyside, Cheshire and North Wales (SPM)Technology changed from Gas and other fossil to Solar
  • JAGUAR LANDROVERMerseyside, Cheshire and North Wales (SPM)Technology changed from Solar to Gas and other fossil
  • KronospanMerseyside, Cheshire and North Wales (SPM)Capacity changed from 47.4 MW to 28 MW
  • KronospanMerseyside, Cheshire and North Wales (SPM)Technology changed from Gas and other fossil to Solar
  • Longhill Burn WindfarmCentral and Southern Scotland (SPD)Capacity changed from 50 MW to 36 MW
  • Rolls RoyceMerseyside, Cheshire and North Wales (SPM)Capacity changed from 17.015 MW to 7.1 MW
  • Shin Etsu CHPCentral and Southern Scotland (SPD)Status changed from “accepted to connect” to “connected”
  • Sorbie WindfarmCentral and Southern Scotland (SPD)Capacity changed from 12 MW to 7.5 MW
  • ToyotaMerseyside, Cheshire and North Wales (SPM)Status changed from “accepted to connect” to “connected”
  • ToyotaMerseyside, Cheshire and North Wales (SPM)Technology changed from Gas and other fossil to Solar
  • Williams Farm Solar (Phase 2)Merseyside, Cheshire and North Wales (SPM)Capacity changed from 16.27 MW to 10 MW
  • Williams Farm Solar (Phase 2)Merseyside, Cheshire and North Wales (SPM)Customer changed from Renewabuild to Solar Ventures
  • Williams Farm Solar (Phase 2)Merseyside, Cheshire and North Wales (SPM)Technology changed from Storage to Solar

Grid supply points in the September 2026 edition

Each grid supply point the edition names, the largest first, with the capacity of its sites connected and accepted to connect.

Legacy49328 MW287 MW
Capenhurst22217 MW384 MW
Chapelcross12137 MW398 MW
Carrington / Fiddlers Ferry27310 MW210 MW
Cheshire E3–506 MW
Connahs Quay32281 MW178 MW
Mid Wales Hub5–430 MW
Ince13219 MW187 MW
Pentir1393 MW299 MW
Frodsham16233 MW143 MW

Sites in the September 2026 edition

773 sites, 17.1 GW: 6.3 GW connected, 10.8 GW accepted to connect

Site, company and substation names are shown as they appear in the registers, including capitalisation.

Hill Farm 240MVAGreen Switch Capital LtdMerseyside, Cheshire and North Wales (SPM)SolarAccepted to connect240Cheshire E
FWS Mill Hey FarmFirstway Solar LtdMerseyside, Cheshire and North Wales (SPM)StorageAccepted to connect199.6Cheshire E
Manor RoadMerseyside, Cheshire and North Wales (SPM)StorageAccepted to connect179.625Capenhurst
Aberangell FarmGGE Scotland LimitedMerseyside, Cheshire and North Wales (SPM)SolarAccepted to connect150Mid Wales
Carnedd WenMerseyside, Cheshire and North Wales (SPM)WindAccepted to connect150Mid Wales Hub
Clifton LaRenewables North WestMerseyside, Cheshire and North Wales (SPM)StorageAccepted to connect150Mersey A
WinningtonEONMerseyside, Cheshire and North Wales (SPM)Gas and other fossilConnected138Carrington / Fiddlers Ferry
Muircleugh FarmDalriada Renewables Ltd.Central and Southern Scotland (SPD)StorageAccepted to connect120Galashiels
Pennersaughs Farm (Ecclefechan Solar & BESS)Central and Southern Scotland (SPD)StorageAccepted to connect120Chapelcross
Benthead Farm Solar and BESSLocogen Solar Developments LtdCentral and Southern Scotland (SPD)StorageAccepted to connect113.43Kilwinning

QueueWatch holds 7 SPEN editions, from March 2026 to September 2026.

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How power reaches a site

A grid supply point (GSP) is where the national grid hands power to the local network. A bulk supply point (BSP) steps it down to a lower voltage for an area. A primary substation steps it down again for the streets and sites nearby. Most small and medium sites connect at a primary. Not every network has all three levels.

Flexible connection

The network operator can reduce how much power the site exports or imports when the local network is busy, usually in return for connecting sooner or more cheaply.

Yes: the register says it has one. No: the register says it doesn't. Not stated: the register leaves it blank.