πŸ”Œ EV Partnership Switch to Octopus Energy & unlock exclusive smart EV charging rates Find out more β†’ Skip to main content
WIND Β· OPERATIONAL

Mynydd Bwllfa

Mynydd Bwllfa is a 22.5 MW onshore wind farm in Wales, operated by Pennant Walters. The UK government lists it as operational in its register of power stations (DUKES table 5.11, May 2025).

  • Onshore
  • Wales
Project stageOperating
  1. PlanningMay 2009 (completed)
  2. ConsentedJun 2012 (completed)
  3. ConstructionFeb 2014 (completed)
  4. OperatingMay 2015 (current stage)
  5. Closed (not yet reached)

Planning dates from the Renewable Energy Planning Database; operating status from DUKES table 5.11.

Key facts

Installed capacity
22.5 MW
Status
Operational
Technology
Wind Β· Onshore
Operator
Pennant Walters
Region
Wales
Country
Wales
Grid connection (DUKES)
HV
Combined heat & power
No
Postcode
CF44 9NB
Coordinates
51.7356, -3.5078

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 Mynydd Bwllfa compares

208th of 488largest wind farms in the UK register
17th of 43in Wales
0.08%of listed UK wind farms capacity
β‰ˆ 51 GWhillustrative output a year

At a typical UK load factor for this technology (about 26% of the maximum possible output), a 22.5 MW station would generate roughly 51 GWh of electricity in a year, similar to the annual use of about 18,980 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 Pennant Walters

Nearby generating sites

Also operated by Pennant Walters

Pennant Walters operates 6 sites in the register. Largest first:

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
Mynydd Bwllfa Wind Farm - Resubmission
Developer / operator
Pennant Walters
Planning authority
Rhondda Cynon Taf
Planning reference
09/0393/10
Application submitted
5 May 2009
Permission granted
1 June 2012
Construction started
1 February 2014
Began operating
8 May 2015
Capacity in planning record
22.5 MW
Address
South of Hirwaun, Mid Glamorgan
REPD reference
3705

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

Spotted an error? Tell us and we will check it against the source.