Power plant · East Suffolk, England, United Kingdom
Sizewell B Power Station
Sizewell B Power Station is a nuclear power plant in East Suffolk, England, United Kingdom, with 1,198 MW of capacity, owned by EDF Energy.
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 | East Suffolk (coordinates), England | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 25 Oct 2026 |
| Location | England | NESO TEC Register · NESO Open Data Licence v1.0 · checked 24 Oct 2026 |
| Status | Operating | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 25 Oct 2026 |
| Start year | 1995 | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 25 Oct 2026 |
| Owner | EDF Energy (company that returns the dukes survey, usually the owner) | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 25 Oct 2026 |
| Capacity | 1,198 MW | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 25 Oct 2026 |
| Technology | Nuclear (PWR) | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 25 Oct 2026 |
| Planned retirement | 2035 (a 20-year life extension (2035-2055) needs a commercial model still being worked on, owner's announced end of generation) | GB power station owners' pages · record · Facts only, each linked to its page · checked 25 Oct 2026 |
| Coordinates | 52.2154, 1.6235 | DUKES 5.11: Power stations in the United Kingdom · Open Government Licence v3.0 · checked 25 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 researchAlso recorded as
2 sources record Sizewell B; 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 |
|---|---|---|---|
| Sizewell B | asset:dukes:nuc-000159 | DUKES 5.11: Power stations in the United Kingdom | — |
| Sizewell B | asset:neso-tec:pro-000144 | NESO TEC Register | Same name, technology, capacity and company |
How it compares
Sizewell B is the 20th-largest of 4,035 power plants in England and the 26th-largest of 5,834 in the United Kingdom by capacity; its 1,198 MW is 0.6% 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 |
|---|---|---|---|
| England | 20th of 4,035 | 134,434 MW | 0.89% |
| United Kingdom | 26th of 5,834 | 200,500 MW | 0.6% |
| All power plants in our data | 362nd of 15,799 | 1,918,113 MW | <0.1% |
Nearby
Within 50 km of this power plant: 3 transmission lines, measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| LionLink Interconnector | Transmission line | — | Planned | 6.6 km |
| Norwich to Tilbury | Transmission line | — | Planned | 46 km |
| Sea Link | Transmission line | — | Planned | 47 km |
Owner and place
Grid connections attached to this power plant
- Sizewell B grid connection1,230 MW
More from EDF Energy
- Cottam2,000 MW
- West Burton2,000 MW
- Heysham 21,240 MW
- Torness1,200 MW
- Hartlepool1,185 MW
- Dungeness B1,090 MW
- Heysham 11,060 MW
- Hunterston B985 MW
Other power plants in England
- Drax Power Station Biomass Units2,580 MW
- Ratcliffe-on-Soar2,021 MW
- Cottam2,000 MW
- Walpole Flexible Generation Project2,000 MW
- West Burton2,000 MW
- Eggborough1,960 MW
- Staythorpe1,828 MW
- Fiddler’s Ferry1,510 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.
- GB power station owners' pages. GB power station owners' pages, Facts only, each linked to its page.
- 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.
- Supported by National Energy SO Open Data. NESO TEC Register, NESO Open Data Licence v1.0.
- 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.