Connahs Quay
Uniper's largest CCGT. Connahs Quay is a 1,380 MW gas-fired power station in Wales, operated by Uniper UK. The UK government lists it as operational in its register of power stations (DUKES table 5.11, May 2025).
- Wales
- Commissioned 1996
Key facts
- Installed capacity
- 1,380 MW
- Status
- Operational
- Technology
- Gas
- Operator
- Uniper UK
- Region
- Wales
- Country
- Wales
- Coordinates
- 53.2073, -3.0663
- Commissioned
- 1996
- Modules
- 4
- Module capacity mw
- 330
- Gas turbine
- GE Frame 9FA
- Commissioning cost millions gbp
- 580
Location
Map position from the published coordinates. For small sites this can be an approximate point rather than the exact boundary. Map Β© OpenStreetMap contributors.
How Connahs Quay compares
Gas-fired power stations burn natural gas. Combined-cycle gas turbine (CCGT) plants reuse exhaust heat to raise steam for a second turbine, making them more efficient than single-cycle (open-cycle) gas turbines, which are used mainly for short peaks in demand.
All gas-fired power stations Power stations in WalesAbout Connahs Quay
History
Commissioned in March 1996 after construction began in July 1993. Cost Β£580 million. Originally owned by Powergen, then E.ON, now Uniper. Initially fuelled with gas from the Point of Ayr offshore gas field via a dedicated terminal. Four chimneys distinguish it from the older Deeside CCGT one mile to the east.
Did you know?
- Uniper's largest UK CCGT
- Four chimneys distinguish it from Deeside
- Originally fuelled from Point of Ayr gas field
- Now supplied from Burton Point gas terminal
Nearby power stations
- Shotwick Β· 72.2 MW solar farm4.8 km
- Cheshire Β· 40 MW open-cycle gas power station14.3 km
- Frodsham Wind Farm Β· 50.4 MW onshore wind farm21.3 km
- Acrefair Β· 5 MW solar farm24.4 km
- Runcorn Energy from Waste Β· 91 MW energy-from-waste plant24.7 km
- Rocksavage Power Company Ltd Β· 810 MW CCGT gas power station25.3 km
- Clocaenog Forest Β· 96 MW onshore wind farm28.7 km
- Tir Mostyn & Foel Goch Ltd Β· 21.3 MW onshore wind farm30.0 km
Also operated by Uniper UK
Uniper UK operates 8 sites in the register. Largest first:
- Grain Β· gas-fired power station1,517 MW
- Killingholme Β· open-cycle gas power station600 MW
- Cottam Development Centre Β· CCGT gas power station445 MW
- Enfield Β· CCGT gas power station408 MW
- Taylors Lane Β· oil-fired power station144 MW
- Grain (OCGT) Β· oil-fired power station50 MW
- Ratcliffe (OCGT) Β· oil-fired power station34 MW
Source
Department for Energy Security and Net Zero (DESNZ), Digest of UK Energy Statistics (DUKES), table 5.11: power stations in the United Kingdom.
Capacity is installed capacity as published, not current output. Status reflects the source date, not live operation.
View the original source
Last checked by Octary: 15 July 2026
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