EDF
- Start
- Jun 1, 203550% CONFIDENCEfrom the source
Sizewell C Begins Generating
- Sizewell C is a two-unit EPR nuclear station (2 x 1,630 MWe, about 3.2 GW) in Suffolk next to Sizewell B, a near-copy of Hinkley Point C, expected to power about six million homes for at least 60 years[1][2][3]
- Final investment decision was signed 22 July 2025; stakes are UK Government 44.9%, La Caisse 20%, Centrica 15%, EDF 12.5% and Amber Infrastructure 7.6%[1][3]
- Cost is expected at GBP 38 billion as of July 2025, with the National Wealth Fund providing the majority of debt; nearly double EDF's earlier forecast of about GBP 20 billion; bills rise by an average GBP 1 a month during construction[1][3]
- Timeline: Miliband said mid-2034 for operation and the company's lawyer said both reactors operational by mid-2034; EDF said in 2023 the earliest one reactor could run is end of 2033, so the pin's 2035 estimate is later than these[3]
- Construction formally began 15 January 2024; in January 2025 the project reported being on time and on budget with GBP 1 billion of savings from replicating Hinkley Point C[1][2]
- Opposition includes Together Against Sizewell C and the RSPB over wildlife impact near Minsmere[1][3]
References 361% CONFIDENCE
The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
- [1]50%en.wikipedia.org/wiki/Sizewell_C_nuclear_power_stationen.wikipedia.org· Posted Sep 11, 2026· Starts Jun 1, 2035 ✓· 57% of score
Given as a target, not a fixed date, per the pin description: "…C intended to power six million homes. Estimated date.…"
- [2]78%Sizewell C reports project progress to parliamentworld-nuclear-news.org· Published Jan 1, 2026· 21% of score
World Nuclear News, the nuclear trade press, reports Sizewell C's official progress update; EDF's own best-case estimate is first power by end-2033 with both reactors operational by mid-2034, roughly consistent with the pin's mid-2030s stored date.
- [3]74%How long will it take for Sizewell C power station to make energy bills lower?uk.news.yahoo.com· Published Jan 1, 2026· 21% of score
Corroborates EDF's stated best-case scenario that the earliest either reactor could be operational is end of 2033, with full output by mid-2034.[1]
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