Power plant · Caerphilly, Wales, United Kingdom
Pen March Wind Farm
Pen March Wind Farm is a cancelled power plant in Caerphilly, Wales, United Kingdom, with 30 MW of capacity, operated by RWE Renewables UK Limited.
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 | Caerphilly (coordinates), Wales | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Address | Land north of the A465 Heads of the Valleys road, north-west of the small town of Rhymney and north-east of Merthyr Tydfil | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Status | Cancelled (planning permission refused) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Onshore or offshore | Onshore | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Application date | 20 Oct 2023 (reference DNS/3253147, planning authority Welsh Government (NSIP)) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Decision date | 3 Mar 2025 (refused, reference DNS/3253147, planning authority Welsh Government (NSIP)) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Operator | RWE Renewables UK Limited | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Capacity | 30 MW | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Units | 6 units | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Technology | Wind Onshore | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Coordinates | 51.7793, -3.3296 | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
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How it compares
Pen March Wind Farm is the 48th-largest of 424 power plants in Wales and the 727th-largest of 5,050 in the United Kingdom by capacity; its 30 MW is <0.1% of the 115,642 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 | 48th of 424 | 9,068 MW | 0.33% |
| United Kingdom | 727th of 5,050 | 115,642 MW | <0.1% |
| All power plants in our data | 2,781st of 12,008 | 1,173,302 MW | <0.1% |
Nearby
Within 50 km of this power plant: 218 grid connections and 6 data centers, measured from the coordinates in the facts above. The table shows the nearest 6, up to 3 per kind.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Merthyr Tydfil Pengarnddu Industrial Estate grid connection | Grid connection | — | — | 1.1 km |
| Dowlais Stor Generation Site Merthyr Tydfil grid connection | Grid connection | — | — | 1.2 km |
| Dowlais BESS grid connection | Grid connection | — | — | 1.4 km |
| Centerprise International (Distribution) | Data center | — | — | 18 km |
| Centerprise International Newport | Data center | — | — | 32 km |
| Vantage Data Centers data center, Newport | Data center | — | — | 32 km |
Operator and place
More from RWE Renewables UK Limited
- Dogger Bank South East1,500 MW · permitted
- Dogger Bank South West1,500 MW · permitted
- The East Anglia Array - Norfolk Boreas1,400 MW · under construction
- Sofia (Teesside B)1,400 MW · under construction
- The East Anglia Array - Norfolk Vanguard West1,380 MW · permitted
- The East Anglia Array - Norfolk Vanguard East1,380 MW · permitted
- Rampion Wind Farm (Extension), (Rampion 2)1,200 MW · permitted
- Loch Awe - Eredine Wind Farm100 MW · planned
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
- DESNZ Renewable Energy Planning Database (REPD). 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.
- Bundesnetzagentur, Marktstammdatenregister. Marktstammdatenregister, DL-DE-BY-2.0.
- NGED Connected Data portal. NGED Connected Data portal, Terms not verified.
- © OpenStreetMap contributors. OpenStreetMap data centers, ODbL 1.0.
- Planning Inspectorate: National Infrastructure Projects. 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.