Power plant · Cardiff, Wales, United Kingdom
Cardiff Waste Water Treatment Power Station
Cardiff Waste Water Treatment Power Station is a biomass power plant in Cardiff, Wales, United Kingdom, with 5.5 MW of capacity, operated by Dwr Cymru Welsh Water.
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 | Cardiff (coordinates), Wales | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Address | Tide Fields Road, Splott, Cardiff, South Glamorgan. CF24 2 | 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 | 2010 | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Permit date | 10 Dec 2008 (permit 08/01949/E, Town and Country Planning Act, issued by Cardiff) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Application date | 11 Aug 2008 (reference 08/01949/E, planning authority Cardiff) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Decision date | 10 Dec 2008 (granted, reference 08/01949/E, planning authority Cardiff) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Operator | Dwr Cymru Welsh Water | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Capacity | 5.5 MW | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Technology | Sewage Sludge Digestion | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Coordinates | 51.4859, -3.1439 | 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 Cardiff, reference 08/01949/E)
- Permit applied for (planning authority Cardiff, reference 08/01949/E)
How it compares
Cardiff Waste Water Treatment is the 243rd-largest of 451 power plants in Wales and the 3,219th-largest of 5,837 in the United Kingdom by capacity; its 5.5 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 | 243rd of 451 | 16,665 MW | <0.1% |
| United Kingdom | 3,219th of 5,837 | 200,833 MW | <0.1% |
| All power plants in our data | 9,027th of 13,028 | 1,354,089 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: 9 data centers, 2 transmission lines and 1 AI supercomputer, measured from the coordinates in the facts above. The table shows the nearest 6, up to 3 per kind.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Microsoft Newport data centre | Data center | — | — | 10 km |
| Vantage Data Centers data center, Newport | Data center | — | — | 11 km |
| Centerprise International Newport | Data center | — | — | 11 km |
| Hinkley Point C Connection Project Material Change | Transmission line | — | Planned | 27 km |
| Hinkley Point C Connection | Transmission line | — | Permitted | 31 km |
| University of Bristol Isambard-AI | AI supercomputer | 5,448 H100e | Operating | 46 km |
Operator and place
More from Dwr Cymru Welsh Water
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.
- Epoch AI. Epoch AI supercomputers, CC BY 4.0.
- 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.