Transmission / Projects / Substation
Connah's Quay 400kV Substation
England and Wales, National Grid Electricity Transmission
4projects in the register
1.4 GWstill to connect
189 MWof that with Gate 2 offers
1.4 GWconnected now
The queue at this substation
| Project | Customer | Technology | Queued MW | Connection date | Gate | Status |
|---|---|---|---|---|---|---|
| Deeside Power Station | DEESIDE POWER (UK) LIMITED | Storage | 189 | 25 Oct 2026 Past date | Gate 2 | Built |
| Port of Mostyn | MOSTYN SEAPOWER LIMITED | Hydro & marine | 210 | 1 Dec 2030 | Gate 1 | Scoping |
| Icewind Connah's Quay | KARI ENERGY LIMITED | Offshore wind | 1,000 | 1 Nov 2033 | Gate 1 | Scoping |
| Connah's Quay | Uniper UK Limited | Thermal (gas, biomass, waste) | 0 | Connected | Not stated | Built |
Recent changes
- Deeside Power StationEngland and Wales, StorageStatus changed from Consents Approved to Built
- Deeside Power StationEngland and Wales, StorageGiven a Gate 2 connection offerGate 2
- Port of MostynEngland and Wales, Hydro & marineStage 1: Marked as Gate 1
- Port of MostynEngland and Wales, Hydro & marineStage 2: Marked as Gate 1
- Port of MostynEngland and Wales, Hydro & marineStage 3: Marked as Gate 1
- Deeside Power StationEngland and Wales, StorageConnection point changed from Deeside 400kV Substation to Connah's Quay 400kV Substation
- Connah's QuayEngland and Wales, Thermal (gas, biomass, waste)Customer changed from C.GEN Killingholme Limited to Uniper UK Limited
- Icewind Connah's QuayEngland and Wales, Offshore windMarked as Gate 1
- Connah's QuayEngland and Wales, Thermal (gas, biomass, waste)Customer changed from Uniper UK Limited to C.GEN Killingholme Limited
- Deeside Power StationEngland and Wales, StorageConnection point changed from Connah's Quay 400kV Substation to Deeside 400kV Substation
- Deeside Power StationEngland and Wales, StorageTechnology changed from Storage, Gas engines to Storage, Reactive compensation
- Port of MostynEngland and Wales, Hydro & marineStage 2: Capacity changed from 140 MW to 70 MW
- Port of MostynEngland and Wales, Hydro & marineStage 3: Capacity changed from 210 MW to 70 MW
- Deeside Power StationEngland and Wales, Storage1 MW now connectedConnected
- Deeside Power StationEngland and Wales, StorageStatus changed from Scoping to Consents Approved
- Port of MostynEngland and Wales, Hydro & marineRestructured from 1 stage (210 MW from 1 Apr 2027) to 3 stages (70 MW from 1 Dec 2030, 140 MW from 1 Jun 2031, 210 MW from 1 Jan 2032). First connection date +44 months+44 mo
- Deeside Power StationEngland and Wales, Storage1 MW no longer connected
- Deeside Power StationEngland and Wales, StorageConnection point changed from Deeside 400kV Substation to Connah's Quay 400kV Substation
- Deeside Power StationEngland and Wales, StorageCapacity changed from 189 MW to 190 MW
- Deeside Power StationEngland and Wales, StorageStatus changed from Built to Scoping
- Deeside Power StationEngland and Wales, StorageTechnology changed from Storage, Reactive compensation to Storage, Gas engines
- Icewind Connah's QuayEngland and Wales, Offshore windCustomer changed from Hecate Offshore Wind Limited to KARI ENERGY LIMITED
- Deeside Power StationEngland and Wales, StorageConnection date moved from 31 Oct 2033 to 25 Oct 2026 (−84 months)−84 mo
- Icewind Connah's QuayEngland and Wales, Offshore windSubstation name updated in the register (from Connah's Quay GSP to Connah's Quay 400kV Substation)
- Deeside Power StationEngland and Wales, StorageTechnology changed from Reactive compensation to Storage, Reactive compensation
- Icewind Connah's QuayEngland and Wales, Offshore windCustomer changed from HECATE INDEPENDENT POWER LIMITED to Hecate Offshore Wind Limited
- Deeside Power StationEngland and Wales, StorageCapacity changed from 0 MW to 189 MW
- Deeside Power StationEngland and Wales, StorageConnection date set to 31 Oct 2033
- Connah's QuayEngland and Wales, Thermal (gas, biomass, waste)Substation name updated in the register (from Connah's Quay 400kV to Connah's Quay 400kV Substation)
- Icewind Connah's QuayEngland and Wales, Offshore windSubstation name updated in the register (from Connah's Quay to Connah's Quay GSP)
- Port of MostynEngland and Wales, Hydro & marineSubstation name updated in the register (from Connah's Quay 400kV to Connah's Quay 400kV Substation)
- Port of MostynEngland and Wales, Hydro & marineConnection date moved from 1 Apr 2025 to 1 Apr 2027 (+24 months)+24 mo
- Deeside Power StationEngland and Wales, StorageTechnology changed from Gas (CCGT) to Reactive compensation
- Icewind Connah's QuayEngland and Wales, Offshore windCustomer changed from HECTATE INDEPENDENT POWER LIMITED to HECATE INDEPENDENT POWER LIMITED
- Icewind Connah's QuayEngland and Wales, Offshore windAdded to the registerNew
- Port of MostynEngland and Wales, Hydro & marineConnection date moved from 1 Apr 2024 to 1 Apr 2025 (+12 months)+12 mo
- Port of MostynEngland and Wales, Hydro & marineConnection date moved from 4 Jan 2024 to 1 Apr 2024 (+3 months)+3 mo
QueueQuant
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