Causilgey
Causilgey is a 5 MW solar farm in South West England, operated by Octopus Investments. The UK government lists it as operational in its register of power stations (DUKES table 5.11, May 2025).
- PV
- South West
- England
Key facts
- Installed capacity
- 5 MW
- Status
- Operational
- Technology
- Solar Β· PV
- Operator
- Octopus Investments
- Region
- South West
- Country
- England
- Grid connection (DUKES)
- LV
- Combined heat & power
- No
- Postcode
- TR4 9EP
- Coordinates
- 50.2863, -5.1209
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 Causilgey compares
At a typical UK load factor for this technology (about 10% of the maximum possible output), a 5 MW station would generate roughly 4.4 GWh of electricity in a year, similar to the annual use of about 1,620 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 South West All run by Octopus InvestmentsNearby generating sites
- Garvinack Β· 9.62 MW solar farm0.0 km
- Four Burrows Solar (Kenwyn) Β· 7.2 MW solar farm1.5 km
- Four Burrows Wind Farm (GB) Β· 4.5 MW onshore wind farm1.9 km
- Penare Β· 11.1 MW solar farm3.8 km
- Wheal Jane Β· 1.42 MW solar farm5.4 km
- Tregassow Β· 5.87 MW solar farm7.8 km
- Carland Cross RP Β· 20 MW onshore wind farm9.6 km
- Pencoose Β· 8.14 MW solar farm10.3 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
- Causilgey Solar Farm
- Developer / operator
- China Sunergy
- Planning authority
- Cornwall
- Planning reference
- PA10/07837
- Application submitted
- 29 November 2010
- Permission granted
- 21 April 2011
- Began operating
- 31 March 2013
- Capacity in planning record
- 5 MW
- Address
- Causilgey Barton Tregavethan Truro Cornwall, Cornwall, TR4 9EP
- REPD reference
- 1545
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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