Power plant · Swansea, Wales, United Kingdom
Cockett Valley
Cockett Valley is a power plant in Swansea, Wales, United Kingdom, with 4 MW of capacity, operated by Renewable Developments Wales.
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 | Cockett Valley, Waunarlywydd Road, Swansea, SA5 4RQ | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Status | Operating (operational) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Start year | 2017 | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Permit date | 18 Aug 2015 (permit 2014/1837, 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 | 5 Dec 2014 (reference 2014/1837, planning authority Swansea) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Decision date | 18 Aug 2015 (granted, reference 2014/1837, planning authority Swansea) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Operator | Renewable Developments Wales | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Capacity | 4 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 | 9.15 ha (solar site area) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Coordinates | 51.6375, -4.0106 | 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.
- Commissioned
- Permit granted (planning authority Swansea, reference 2014/1837)
- Permit applied for (planning authority Swansea, reference 2014/1837)
How it compares
Cockett Valley is the 297th-largest of 424 power plants in Wales and the 3,494th-largest of 5,050 in the United Kingdom by capacity; its 4 MW is <0.1% of the 115,622 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 | 297th of 424 | 9,068 MW | <0.1% |
| United Kingdom | 3,494th of 5,050 | 115,622 MW | <0.1% |
| All power plants in our data | 9,276th of 12,032 | 1,190,447 MW | <0.1% |
Timeline
Dated facts about this power plant from its sources, oldest first.
- Started operating
Nearby
Within 50 km of this power plant: 1 data center and 1 transmission line, measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| CGI Datacenter | Data center | — | — | 34 km |
| Brechfa Forest Connection | Transmission line | — | Permitted | 38 km |
Operator and place
More from Renewable Developments Wales
- Trecwn Biomass Plant25 MW
Other power plants in Wales
- Dinorwig1,728 MW
- Gwynt y Mor576 MW
- Ffestiniog360 MW
- Port Talbot Renewable Energy Plant350 MW
- Anglesey Biomass Power Station299 MW
- Tidal Lagoon Swansea Bay240 MW
- Pen Y Cymoedd228 MW
- Carnedd Wen Wind Farm150 MW
Data on this page
- 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.