Sizewell C

Sizewell C is a proposed nuclear power station under development on the Suffolk coast in the East of England. The project, led by Sizewell C Ltd, aims to construct two EPR units adjacent to the existing Sizewell B pressurised water reactor. If built, it would be one of the largest energy infrastructure projects in the United Kingdom, designed to provide low-carbon baseload electricity for around six million homes and support the UK's net-zero targets.

Overview

The project is situated on the Suffolk Coast and Heaths Area of Outstanding Natural Beauty, near the village of Leiston. It represents a major component of the UK government's strategy for energy security and decarbonisation, as outlined in the British energy security strategy. The development consortium includes the UK government, which has taken a significant stake, and the French energy company EDF, drawing on experience from the similar Hinkley Point C project in Somerset. The proposed station is intended to operate for at least 60 years, providing a long-term source of electricity and employment for the region.

History and development

Plans for a new nuclear power station at Sizewell date back to the 2009 National Policy Statement for Nuclear Power Generation. Following the completion of Sizewell B in 1995, EDF Energy identified the site as suitable for further development. A formal planning application was submitted to the Planning Inspectorate in May 2020, initiating a lengthy examination process. In 2022, the UK government confirmed its investment in the project through the Regulated Asset Base model, and the development company Sizewell C Ltd was established. The project received its Development Consent Order from the Secretary of State for Energy Security and Net Zero in July 2022, granting planning permission.

Design and specifications

The station's design is based on the European Pressurised Reactor technology, a third-generation design also used at Hinkley Point C and the Olkiluoto Nuclear Power Plant in Finland. Each of the two proposed reactor units is designed to generate approximately 1670 MWe, giving a total gross output of around 3.3 GW. Key contractors include Framatome for the nuclear island and Bouygues and Laing O'Rourke for civil works. The design incorporates extensive safety features, including double containment structures and core-catchers, meeting stringent standards set by the Office for Nuclear Regulation.

Environmental and economic impact

The construction phase is projected to create thousands of jobs, with a peak workforce anticipated to be over 10,000, providing a significant boost to the local economy in areas like Suffolk and Norfolk. Proponents argue the station is essential for reducing reliance on fossil fuels and meeting climate commitments under the Paris Agreement. However, environmental assessments have raised concerns about impacts on local habitats, including the adjacent RSPB Minsmere nature reserve, coastal processes, and water usage. Mitigation strategies include the creation of new wildlife habitats and the use of a direct seawater cooling system.

Public and political reception

Reception has been polarised. The project has support from the UK government, Confederation of British Industry, and many local business groups, who emphasise energy security and economic benefits. Organised opposition includes the local campaign group Stop Sizewell C, the Campaign for the Protection of Rural England, and some local councils, who cite environmental damage, high costs, and the legacy of nuclear waste. The issue has been a point of contention in local elections and has been debated in the House of Commons. The final investment decision, crucial for full construction to proceed, remains pending as of early 2024. Category:Nuclear power stations in England Category:Proposed power stations in the United Kingdom Category:Buildings and structures in Suffolk