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

Pen Bryn Oer Wind Farm

Pen Bryn Oer Wind Farm is a 6 MW onshore wind farm in Wales, operated by RES Group. The UK government lists it as operational in its register of power stations (DUKES table 5.11, May 2025).

  • Onshore
  • Wales
Project stageOperating
  1. PlanningJun 2013 (completed)
  2. ConsentedAug 2015 (completed)
  3. ConstructionJan 2017 (completed)
  4. OperatingJan 2018 (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
6 MW
Status
Operational
Technology
Wind Β· Onshore
Operator
RES Group
Region
Wales
Country
Wales
Grid connection (DUKES)
LV
Combined heat & power
No
Postcode
NP22 5QR
Coordinates
51.7749, -3.2759

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 Pen Bryn Oer Wind Farm compares

394th of 488largest wind farms in the UK register
32nd of 43in Wales
0.02%of listed UK wind farms capacity
β‰ˆ 14 GWhillustrative output a year

At a typical UK load factor for this technology (about 26% of the maximum possible output), a 6 MW station would generate roughly 14 GWh of electricity in a year, similar to the annual use of about 5,060 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 RES Group

Planning history

From the government's Renewable Energy Planning Database (REPD), matched to this site by location, capacity and name.

Planning status
Operational
Developer / operator
REG Windpower/ BlackRock
Planning authority
Caerphilly
Planning reference
13/0483/FULL
Application submitted
28 June 2013
Permission granted
6 August 2015
Construction started
15 January 2017
Began operating
15 January 2018
Capacity in planning record
4 MW
Address
Pen Bryn Oer, Merthyr Road, Rhymney, Mid Glamorgan
REPD reference
4412

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.