Alltwalis
Alltwalis is a 23 MW onshore wind farm in Wales, operated by Statkraft. The UK government lists it as operational in its register of power stations (DUKES table 5.11, May 2025).
- Onshore
- Wales
Key facts
- Installed capacity
- 23 MW
- Status
- Operational
- Technology
- Wind Β· Onshore
- Operator
- Statkraft
- Region
- Wales
- Country
- Wales
- Grid connection (DUKES)
- HV
- Combined heat & power
- No
- Postcode
- SA32 7ED
- Coordinates
- 51.9778, -4.2380
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 Alltwalis compares
At a typical UK load factor for this technology (about 26% of the maximum possible output), a 23 MW station would generate roughly 52 GWh of electricity in a year, similar to the annual use of about 19,400 homes at 2,700 kWh each. This is an illustrative estimate, not the station's metered output: real generation varies with weather, availability and grid constraints.
Wind farms turn the kinetic energy of the wind into electricity with turbines. Output varies with wind speed. Offshore sites usually see stronger, steadier winds than onshore sites and so generate more per MW of capacity.
All UK wind farms Wind farms in Wales All run by StatkraftNearby generating sites
- Brechfa Forest West Β· 57.4 MW onshore wind farm5.1 km
- Nanthenfoel Β· 5 MW solar farm20.5 km
- Pont Andrew Β· 1.54 MW solar farm23.5 km
- Dyffryn Brodyn Wind Farm (GB) Β· 5.4 MW onshore wind farm25.1 km
- Saron Β· 6.33 MW solar farm25.3 km
- Pen-Y-Cae Β· 6.76 MW solar farm25.6 km
- Ffos Las Β· 5 MW solar farm28.1 km
- Brynteg Β· 14.8 MW solar farm29.8 km
Also operated by Statkraft
Statkraft operates 11 sites in the register. Largest first:
- Berry Burn Β· onshore wind farm67 MW
- Baillie Β· onshore wind farm53 MW
- Andershaw Β· onshore wind farm36 MW
- Rheidol Hydro Scheme Gen 3 Β· hydroelectric station20.5 MW
- Rheidol Hydro Scheme Gen 2 Β· hydroelectric station20.5 MW
- Rheidol Hydro Scheme Gen 1 Β· hydroelectric station13.5 MW
- Rheidol Hydro Scheme Gen 4 Β· small hydro scheme1.25 MW
- Rheidol Hydro Scheme Gen 7 Β· small hydro scheme0.1 MW
Planning history
From the government's Renewable Energy Planning Database (REPD), matched to this site by location, capacity and name.
- Planning status
- Operational
- Site name in planning record
- Blaengwen
- Developer / operator
- Statkraft and Catamount Energy Corporation
- Planning authority
- Carmarthenshire
- Application submitted
- 6 July 2006
- Permission granted
- 27 March 2007
- Construction started
- 1 November 2008
- Began operating
- 30 November 2009
- Capacity in planning record
- 23 MW
- Address
- Pencader Carms., Dyfed, SA39 94P
- REPD reference
- 4670
Source
Department for Energy Security and Net Zero (DESNZ), Digest of UK Energy Statistics (DUKES), table 5.11: power stations in the United Kingdom β operational at end of May 2025.
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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