Grid connection · Wales, United Kingdom
Connah's Quay grid connection
Connah's Quay grid connection is a grid connection in Wales, United Kingdom, with 1,380 MW of capacity, held by Uniper UK Limited.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Wales (connects at Connah's Quay 400kV Substation) | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Status | Operating (built) | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Holder | Uniper UK Limited | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Attached to | Connah's Quay | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Capacity | 1,380 MW | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Technology | CCGT (Combined Cycle Gas Turbine) | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Grid operator | National Grid Electricity Transmission plc | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
Know more about this grid connection, or want an introduction to its holder? Ask us.
How it compares
Connah's Quay grid connection is the 4th-largest of 158 grid connections in Wales and the 64th-largest of 3,903 in the United Kingdom by capacity; its 1,380 MW is 0.31% of the 446,745 MW we hold for the United Kingdom. Ranks and totals cover the grid connections in our data that report their capacity, not every one in existence.
| Within | Rank | Total | Share |
|---|---|---|---|
| Wales | 4th of 158 | 21,044 MW | 6.6% |
| United Kingdom | 64th of 3,903 | 446,745 MW | 0.31% |
| All grid connections in our data | 103rd of 7,616 | 1,281,251 MW | 0.11% |
Holder, grid operator and place
More from Uniper UK Limited
- Grain grid connection1,517 MW
- Killingholme grid connection619 MW
- Connah’s Quay Low Carbon Power Project1,380 MW · planned
- Killingholme Power Station, Chase Hill Road - Hydrogen Production Facility120 MW · permitted
- Grange Of Berryhill - Solar Farm49.9 MW · permitted
- Salinae Hydrogen Storage projectCO2 emitter
Other grid connections in Wales
- Pembroke Power Station grid connection2,199 MW
- Dinorwig grid connection1,644 MW
- Mona Offshore Wind Farm grid connection1,500 MW
- Legacy Green Energy Centre grid connection1,200 MW
- Awel Y Mor grid connection1,100 MW
- Cilfynydd Green Energy Centre grid connection1,025 MW
- Pentir Green Energy Centre grid connection1,025 MW
- Swansea North Green Energy Centre grid connection1,025 MW
Data on this page
- California ISO. Checked 2026-10-24. CAISO queue report, CAISO Privacy and Terms of Use.
- SP Electricity North West, via Northern Powergrid Open Data. SP Electricity North West open data portal, CC BY 4.0.
- ERCOT GIS report. ERCOT GIS report, ERCOT Terms of Use.
- Supported by National Energy SO Open Data. NESO TEC Register, NESO Open Data Licence v1.0.
- Supported by Northern Powergrid Open Data. Northern Powergrid open data portal, Northern Powergrid Open Data Licence v1.0.
- NYISO interconnection queue. NYISO interconnection queue, Free reuse.
- PJM New Services Queue. PJM New Services Queue, Free reuse.
- SP Energy Networks, via Northern Powergrid Open Data. SP Energy Networks open data portal, CC BY 4.0.
- SSEN Distribution. SSEN Distribution data portal, CC BY 4.0.