Power plant · Wales, United Kingdom
Tidal Lagoon Swansea Bay
Tidal Lagoon Swansea Bay is a power plant in Wales, United Kingdom, with 240 MW of capacity, operated by Tidal Lagoon PLC and Tidal Lagoon Power.
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 (Wales) | Planning Inspectorate: National Infrastructure Projects · record · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Location | Wales | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Address | Swansea Bay, South Wales | Planning Inspectorate: National Infrastructure Projects · record · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Address | Swansea, Wales | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Status | Permitted (post-decision, granted) | Planning Inspectorate: National Infrastructure Projects · record · 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 | 9 Jun 2015 (permit EN010049, Planning Act 2008 development consent, issued by Secretary of State) | Planning Inspectorate: National Infrastructure Projects · record · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Permit date | 9 Jun 2015 (permit EN010049, Planning Act 2008 development consent, issued by The Planning Inspectorate - National Infrastructure) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Application date | 7 Feb 2014 (reference EN010049, planning authority The Planning Inspectorate) | Planning Inspectorate: National Infrastructure Projects · record · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Application date | 6 Mar 2014 (reference EN010049, planning authority The Planning Inspectorate - National Infrastructure) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Decision date | 9 Jun 2015 (granted, reference EN010049, planning authority The Planning Inspectorate) | Planning Inspectorate: National Infrastructure Projects · record · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Decision date | 9 Jun 2015 (granted, reference EN010049, planning authority The Planning Inspectorate - National Infrastructure) | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Operator | Tidal Lagoon PLC (applicant) | Planning Inspectorate: National Infrastructure Projects · record · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Operator | Tidal Lagoon Power | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Capacity | 240 MW (description) | Planning Inspectorate: National Infrastructure Projects · record · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Capacity | 320 MW | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Technology | Tidal Lagoon | Planning Inspectorate: National Infrastructure Projects · record · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Technology | Tidal Lagoon | DESNZ Renewable Energy Planning Database (REPD) · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Area | 2,475 ha (application boundary) | planning.data.gov.uk · record · Open Government Licence v3.0 · checked 24 Oct 2026 |
| Coordinates | 51.6052, -3.9104 | Planning Inspectorate: National Infrastructure Projects · record · 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 The Planning Inspectorate, reference EN010049) · source
- Permit granted (planning authority The Planning Inspectorate - National Infrastructure, reference EN010049)
- Permit applied for (planning authority The Planning Inspectorate - National Infrastructure, reference EN010049)
- Permit applied for (planning authority The Planning Inspectorate, reference EN010049) · source
Also recorded as
2 sources record Tidal Lagoon Swansea Bay; this page joins their facts, each with its own source. Links to any of the records lead here. How records are matched.
| Name in the source | Identifier | Source | Matched on |
|---|---|---|---|
| Tidal Lagoon Swansea Bay | asset:pins-nsip:en010049 | Planning Inspectorate: National Infrastructure Projects | — |
| Swansea Bay Tidal Lagoon | asset:repd:2422 | DESNZ Renewable Energy Planning Database (REPD) | Same name, coordinates and operator |
How it compares
Tidal Lagoon Swansea Bay is the 6th-largest of 424 power plants in Wales and the 73rd-largest of 5,050 in the United Kingdom by capacity; its 240 MW is 0.21% 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 | 6th of 424 | 9,068 MW | 2.6% |
| United Kingdom | 73rd of 5,050 | 115,622 MW | 0.21% |
| All power plants in our data | 1,044th of 12,032 | 1,190,447 MW | <0.1% |
Nearby
Within 50 km of this power plant: 2 data centers and 1 transmission line, measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| CGI Datacenter | Data center | — | — | 26 km |
| Brechfa Forest Connection | Transmission line | — | Permitted | 44 km |
| Centerprise International (Distribution) | Data center | — | — | 47 km |
Operators and place
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
- Pen Y Cymoedd228 MW
- Carnedd Wen Wind Farm150 MW
- Y Bryn Wind Farm130 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.
- Contains public sector information licensed under the Open Government Licence v3.0. planning.data.gov.uk, 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.