Gelli Gron
Gelli Gron is a 3.6 MW solar farm in Wales, operated by Lightsource BP. 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
- 3.6 MW
- Status
- Operational
- Technology
- Solar Β· PV
- Operator
- Lightsource BP
- Region
- Wales
- Country
- Wales
- Grid connection (DUKES)
- LV
- Combined heat & power
- No
- Postcode
- LL53 6DQ
- Coordinates
- 52.9316, -4.3553
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 Gelli Gron compares
At a typical UK load factor for this technology (about 10% of the maximum possible output), a 3.6 MW station would generate roughly 3.2 GWh of electricity in a year, similar to the annual use of about 1,170 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 Lightsource BPNearby generating sites
- Bryn Bachau Β· 4.57 MW solar farm3.0 km
- Nefyn (Tyddyn Cae) Β· 4.92 MW solar farm8.5 km
- Croesor Β· 0.51 MW small hydro scheme23.9 km
- Maentwrog Β· 35.3 MW hydroelectric station25.5 km
- Cwm Dyli Β· 9.9 MW hydroelectric station26.3 km
- Ffestiniog Power Station Β· 360 MW pumped-storage station26.4 km
- Dinorwig Power Station Β· 1,800 MW pumped-storage station26.8 km
- Parciau Β· 12.7 MW solar farm27.1 km
Also operated by Lightsource BP
Lightsource BP operates 129 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
- Tyddyn Gwyn (Gelli Gron Farm)
- Developer / operator
- Lightsource Renewable Energy
- Planning authority
- Gwynedd
- Planning reference
- C15/0755/41/LL
- Application submitted
- 23 July 2015
- Permission granted
- 9 November 2015
- Construction started
- 1 September 2016
- Began operating
- 30 November 2016
- Capacity in planning record
- 3.8 MW
- Address
- Tyddyn Gwyn, Llangybi, Pwllheli, Gwynedd, Wales, Gwynedd, LL53 6DQ
- REPD reference
- 5360
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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