Power plant · Wales, United Kingdom
Aberthaw B Power Station
Aberthaw B Power Station is a closed coal power plant in Wales, United Kingdom, with 1,559 MW of capacity, owned by RWE Generation.
Grid connection
It closed in 2019, which freed up a 1,559 MW grid connection, unless it has been reassigned since.
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 | Wales | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Status | Closed | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Start year | 1971 | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 24 Oct 2026 |
| End year | 2019 | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Owner | RWE Generation (company that returns the dukes survey, usually the owner) | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Capacity | 1,559 MW (capacity before it closed) | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Technology | Coal | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 24 Oct 2026 |
Research on this power plant and its owner.Who owns it up to the parent company, its grid connection and planning status, and an introduction to the owner.
Request researchHow it compares
Aberthaw B is the 3rd-largest of 451 power plants in Wales and the 11th-largest of 5,834 in the United Kingdom by capacity; its 1,559 MW is 0.78% of the 200,500 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 | 3rd of 451 | 16,665 MW | 9.4% |
| United Kingdom | 11th of 5,834 | 200,500 MW | 0.78% |
| All power plants in our data | 210th of 15,800 | 1,923,633 MW | <0.1% |
Timeline
Dated facts about this power plant from its sources, oldest first.
- Started operating
- Retired
Owner and place
More from RWE Generation
- Pembroke2,325 MW
- Staythorpe1,828 MW
- Didcot B1,490 MW
- North Falls Offshore Wind Farm1,000 MW · permitted
- Stallingborough Combined Cycle Gas Turbine (CCGT) generating plant and Carbon Capture Plant (CCP)900 MW · planned
- Little Barford735 MW
- Great Yarmouth420 MW
- Kings Lynn395 MW
Other power plants in Wales
- Pembroke2,325 MW
- Dinorwig1,728 MW
- Connahs Quay1,380 MW
- Severn Power Ltd850 MW
- Gwynt y Mor576 MW
- Deeside498 MW
- Ffestiniog360 MW
- Port Talbot Renewable Energy Plant350 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.
- 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.
- Wikidata. Wikidata, CC0 1.0.