Power plant · Swansea, Wales, United Kingdom
Castell Ddu Solar Farm
Castell Ddu Solar Farm is a cancelled solar power plant in Swansea, Wales, United Kingdom, with 5 MW of capacity, operated by Caledon Partners.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Swansea (coordinates), Wales | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Address | Land associated with Castell D, Castell Ddu Road, Pontarddulais, SA4 8DH | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Status | Cancelled (planning permission expired) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Permit date | 14 Jan 2016 (permit 2015/1786, Town and Country Planning Act, issued by Swansea) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Application date | 9 Sept 2015 (reference 2015/1786, planning authority Swansea) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Decision date | 14 Jan 2016 (granted, reference 2015/1786, planning authority Swansea) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Operator | Caledon Partners (Caledon Partners (Solar Power Parks), applicant) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Capacity | 5 MW | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Technology | Solar Photovoltaics | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Area | 6.04 ha (solar site area) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Coordinates | 51.6954, -4.0265 | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
Research on this power plant and its operator.Who owns it up to the parent company, its grid connection and planning status, and an introduction to the operator.
Request researchLatest events
Dated events about this power plant from official notices and registers, newest first. All recent changes.
- Permit expired
- Permit granted (planning authority Swansea, reference 2015/1786)
- Permit applied for (planning authority Swansea, reference 2015/1786)
How it compares
Castell Ddu Solar Farm is the 254th-largest of 451 power plants in Wales and the 3,291st-largest of 5,837 in the United Kingdom by capacity; its 5 MW is <0.1% of the 200,833 MW we hold for the United Kingdom. Ranks and totals cover the power plants in our data that report their capacity, not every one in existence. Power plants planned, permitted or under construction are ranked apart.
| Within | Rank | Total | Share |
|---|---|---|---|
| Wales | 254th of 451 | 16,665 MW | <0.1% |
| United Kingdom | 3,291st of 5,837 | 200,833 MW | <0.1% |
| All power plants in our data | 9,138th of 13,028 | 1,354,089 MW | <0.1% |
Nearby
Within 50 km of this power plant: 1 transmission line and 1 data center, measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Brechfa Forest Connection | Transmission line | — | Permitted | 32 km |
| CGI Datacenter | Data center | — | — | 38 km |
Operator and place
More from Caledon Partners
Other power plants in Wales
- Pembroke2,325 MW
- Dinorwig1,728 MW
- Aberthaw B1,559 MW
- Connahs Quay1,380 MW
- Severn Power Ltd850 MW
- Gwynt y Mor576 MW
- Deeside498 MW
- Ffestiniog360 MW
Data on this page
- Contains public sector information licensed under the Open Government Licence v3.0. DUKES 5.11: Power stations in the United Kingdom, Open Government Licence v3.0.
- Contains public sector information licensed under the Open Government Licence v3.0. DESNZ Renewable Energy Planning Database (REPD), Open Government Licence v3.0.
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- JRC Open Power Plants Database (JRC-PPDB-OPEN), European Commission, Joint Research Centre. JRC Open Power Plants Database (JRC-PPDB-OPEN), CC BY 4.0.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.
- Dutch power station owners' and operators' pages. Dutch power station owners' and operators' pages, Facts only, each linked to its page.
- © OpenStreetMap contributors. OpenStreetMap data centers, ODbL 1.0.
- Contains public sector information licensed under the Open Government Licence v3.0. Planning Inspectorate: National Infrastructure Projects, Open Government Licence v3.0.
- RVO SDE(+)(+) projecten in beheer and SDE viewer. RVO SDE(+)(+) projecten in beheer and SDE viewer, Free reuse, no attribution required.