{"docs":"https://nuclearnewsnetwork.com/tracker","unit":{"slug":"sizewell-c-1","name":"Sizewell C-1","plant":"Sizewell C","unit":1,"country":"GB","region":"europe","reactor_type":"PWR","design":"EPR","capacity_mw_net":1630,"is_smr":false,"vendor":"EDF/Framatome","owner_operator":"Sizewell C Ltd (UK Govt/EDF/investors)","status":"under_construction","construction_start":2025,"original_cod_target":2035,"current_cod_estimate":2035,"milestones":[{"date":"2025-07-22","event":"UK final investment decision; ~£38bn project cost announced","source":"https://www.gov.uk/"},{"date":"2025-11-15","event":"Financial close reached with private investors","source":"https://en.wikipedia.org/wiki/Sizewell_C_nuclear_power_station"},{"date":"2026-02-01","event":"~2,000 workers on site as construction ramps","source":"https://www.sizewellc.com/"}],"sources":["https://www.sizewellc.com/"],"last_verified":"2026-07-10","verified":true,"confidence":"medium","notes":"Replicate-and-learn thesis vs Hinkley. £38bn (2024 prices); commercial operation guided mid-to-late 2030s — 2035 estimate is the optimistic end.","tags":["uk","epr","new-build","government-financing"],"updated_at":"2026-07-10","slippage_years":0}}