Sutton Mawr
Sutton Mawr is a 7.52 MW solar farm in Wales, operated by Octopus Investments. The UK government lists it as operational in its register of power stations (DUKES table 5.11, May 2025).
- PV
- Wales
Key facts
- Installed capacity
- 7.52 MW
- Status
- Operational
- Technology
- Solar Β· PV
- Operator
- Octopus Investments
- Region
- Wales
- Country
- Wales
- Grid connection (DUKES)
- LV
- Combined heat & power
- No
- Postcode
- CF62 3AB
- Coordinates
- 51.4216, -3.3357
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 Sutton Mawr compares
At a typical UK load factor for this technology (about 10% of the maximum possible output), a 7.52 MW station would generate roughly 6.6 GWh of electricity in a year, similar to the annual use of about 2,440 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.
Solar photovoltaic (PV) sites generate electricity from sunlight. Panels produce direct current, which inverters convert to alternating current for the grid. Output follows daylight and the seasons, so annual generation is a small fraction of the maximum possible.
All UK solar farms Solar farms in Wales All run by Octopus InvestmentsNearby generating sites
- Derwyn Β· 4.66 MW solar farm1.6 km
- Llancadle Β· 4.99 MW solar farm3.9 km
- Treguff Β· 3.74 MW solar farm5.1 km
- West Hall Β· 5.51 MW solar farm5.6 km
- Aberthaw B Power Station Β· 1,586 MW coal-fired power station6.2 km
- Home Farm Β· 3.06 MW solar farm6.6 km
- Biglis Β· 4.97 MW solar farm6.7 km
- Rosedew Β· 4.98 MW solar farm10.6 km
Also operated by Octopus Investments
Octopus Investments operates 134 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
- Sutton Mawr Farm
- Developer / operator
- Lightsource Renewable Energy
- Planning authority
- Vale of Glamorgan
- Planning reference
- 2013/00617/FUL
- Application submitted
- 2 July 2013
- Permission granted
- 17 January 2014
- Began operating
- 4 March 2014
- Capacity in planning record
- 7.5 MW
- Address
- Sutton Mawr Farm, Barry, South Glamorgan, South Glamorgan, CF62 3AA
- REPD reference
- 1823
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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