Why Stop Sizewell C?

Stop Sizewell C is a campaign group on the frontline* of Sizewell C driven to oppose the project after 8 years of EDF’s failed engagement and the destructive nature of its proposals.

THE CASE AGAINST SIZEWELL C. Download as a pdf here: Case Against Sizewell C 27 May 2020

EDF’s Sizewell C (SZC) Development Consent (DCO) application is for two EPR reactors on the fragile Suffolk Heritage Coast. They would take 10 – 12 years to build and cost £16-18 billion. We contend that Sizewell C is the wrong project in the wrong place and will not deliver the government’s objectives. 

  1. Destructive impacts on internationally-renowned habitats and the local area
  • The Wrong Project in the Wrong Place: SZC is totally unsuitable for the site, too big and surrounded by internationally-protected habitats, recognised in the National Policy Statement as having significant environmental sensitivity. The UK Government’s siting criteria assume 30 hectares are required for a single-reactor nuclear station, yet EDF wants to squeeze two SZC reactors into 32 hectares: Hinkley Point C (HPC) will occupy >45 ha. EDF must move some of Sizewell B’s facilities to make the 32 hectares available, leading to the destruction of 100-year old Coronation Wood.
  • Environment: SZC threatens some of the most important and biodiverse habitats in the UK – including RSPB Minsmere. Habitats for rare birds, animals and plants will be lost forever. The 2020 Environment Bill calls for environmental ‘net gain’ to increase biodiversity. The RSPB believes thatSizewell is not a suitable location for a new nuclear power station”. The Suffolk Coast & Heaths Area of Outstanding Natural Beauty – and the habitats it provides – will be cut in two. 
  • Flooding and Coastal Erosion: The Sizewell site is in Flood Zones 2 & 3. The EA has warned that flood compensation proposals “may not function as intended”. On 26 March the Planning Inspectorate warned EDF that for DCO acceptance, Flood Risk Assessments must use the most up to date guidance and climate change allowances. A new study raises serious questions about the behaviour of offshore banks, which EDF claims provide “micro-stability” for the Sizewell coast, and warns that sea level rises could fully or partially “island” the Sizewell site.  
  • The ‘Energy Coast’ will damage the Heritage Coast forever: At least 8 other energy projects are proposed for east Suffolk, which has been dubbed – without consultation – the “Energy Coast”. Construction would overlap with SZC, but there is little evidence that developers are working together to minimise cumulative impacts. Much greater Government intervention is needed to assess these projects as a whole.
  • Damaging Suffolk Coast Tourism: The Heritage Coast, known for its tranquility and dark skies, is worth more than £200 million in tourism revenue each year. Eyesores, noise, dust, beach and footpath closures and road congestion will drive visitors away. The Suffolk Coast Destination Management Organisation found that tourism could lose up to £40 million a year, with the potential loss of up to 400 jobs. 
  • Limited Economic Benefit: EDF is double-counting the claimed economic benefits of SZC as it plans to use the HPC supply chain. Low unemployment makes EDF’s target of 2,000 home-based employees (within 90 minutes’ drive each way) ambitious. Studies of Sizewell B found that local employment is likely to be in lower-skilled jobs and can result in other businesses losing staff. An Oxford Economic study of Sellafield found that where there is a low level of specialist skills locally, direct labour costs and supply chain ‘spend’ inevitably flows out of the local economy. EDF has reportedly significantly underestimated the number of workers required to complete HPC. If that happens here EDF admits (see para 4.2.17 of link) that almost all extra workers (in addition to 5,600 consulted on) will not be home-based. EDF plans to build a multi-storey complex for 2,400 workers close to Minsmere which is not acceptable to local people. 
  • Traffic: SZC will affect the whole region; EDF has abandoned both a jetty and extensive use of rail, meaning over 1,000 lorries daily at peak, plus thousands of vans, buses and cars on Suffolk’s A12 and inadequate road network. EDF’s limited mitigation in the way of bypasses are a further source of local opposition. 
  • EDF’s “disdainful” consultations: PINS has 28 days to decide whether to accept the DCO application. Suffolk MP Dan Poulter has described EDF’s consultations as “unacceptable”, dragging on over 8 years yet providing very little in the way of detailed information, including on environmental and community impacts. For this reason, campaigners and residents call on PINS to reject the application. 
  1. A Bad Project by a Developer with a Poor Track Record.
  • Slow and Expensive; impossible to accurately predict cost or completion date: SZC’s EPR reactors will be copies of those being built at Hinkley Point C (HPC), currently £2.9bn over budget and up to 15 months late. There are no EPRs operating outside of Taishan in China: EPR builds in France (Flamanville) and Finland (Olkiluouto) are years behind schedule and multiple times overspent. A leak has now been discovered at Olkiluoto. SZC is already 3 years late: in 2012 at the start of public consultations, EDF said it wanted to start building in 2018. 
  • Dependent on a “nuclear tax”: Unlike HPC, EDF cannot build SZC on its balance sheet, and it has made no secret of its need for a Regulated Asset Base (RAB) model for financing SZC. Individual energy bill payers would pay for SZC, including those on a renewable tariff, to give investors an immediate financial return. RAB has been widely criticised for pushing the risk of overruns and overspends onto the consumer and  government. The nuclear industry is concerned that The Treasury may be opposed to RAB. If RAB is included in an Energy White Paper, it would still require legislation before it can be used for new nuclear.
  • An industry in decline: The Moorside project (Toshiba, Cumbria) has collapsed: Wylfa (Hitachi, Anglesey) was mothballed and a decision on planning consent delayed till 30 September. Hitachi is also dependent on RAB. China General Nuclear’s Hualong reactor for Bradwell has yet to pass several regulatory hurdles, but public consultations began 4 March. Globally, the nuclear units under construction declined for the 6th year in a row, from 68 reactors in 2013 to 46 by mid-2019. Of these at least 27 are behind schedule, mostly by several years. China is building 10 units, but has begun no new builds since December 2016
  • EPR is a failed reactor: The EPR has been described by Paul Dorfman of UCL as “too complex to build to time and budget”. SZC could be the last two EPRs ever built as EDF is developing a new (EPR2) design in recognition of the major problems with current builds. French Energy Minister Elizabeth Borne has said France will make no decision on new reactors until Flamanville starts up. The French government is reportedly planning to split the company in two and re-nationalise the troubled nuclear business.
  • EDF’s Blacklisted Partner: Like Huawei the Chinese Comms giant, China General Nuclear is blacklisted in the US. As of May 2020, the Prime Minister is making a U turn on Huawei and must also do so on China General Nuclear’s involvement in the UK’s nuclear build programme. There are legitimate concerns about putting our critical national infrastructure in the hands of a Chinese state-owned company.
  • No solution in sight for nuclear waste: Spent fuel from SZB & SZC must stay on the eroding coastal site until at least 2135, even assuming a “permanent” (100,000 yrs+) waste facility is built in the medium term.
  1. It will undermine the government’s policy objectives


*Stop Sizewell C is the campaign name of Theberton and Eastbridge Action Group on Sizewell Ltd. The parish of Theberton and Eastbridge would be the most impacted by EDF’s Sizewell C plans


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