{"docs":"https://www.nuclearnewsnetwork.com/tracker","terms":"History surfaces — append-only milestone logs, event/change feeds, and full JSON snapshots — are provided under the NNN Data License Terms (https://www.nuclearnewsnetwork.com/data-license): journalism, research, citation and AI answering are expressly permitted royalty-free with attribution; systematic bulk extraction, dataset redistribution, and embedding in commercial products or training corpora require a commercial license.","terms_url":"https://www.nuclearnewsnetwork.com/data-license","attribution":{"text":"Nuclear News Network, \"NNN Reactor Project Tracker\", https://www.nuclearnewsnetwork.com/tracker","url":"https://www.nuclearnewsnetwork.com/tracker"},"unit":{"slug":"leningrad-ii-4","name":"Leningrad II-4","plant":"Leningrad II","unit":4,"country":"RU","region":"europe","reactor_type":"PWR","design":"VVER-1200","capacity_mw_net":1110,"is_smr":false,"vendor":"Rosatom","owner_operator":"Rosenergoatom","epc":"Titan-2 (general contractor)","vendor_id":"org:rosatom","owner_operator_ids":["org:rosenergoatom"],"epc_ids":["org:titan-2"],"design_id":"design:vver-1200","site_id":"site:leningrad-ii","status":"under_construction","construction_start":"2025-03","original_cod_target":null,"current_cod_estimate":2030,"milestones":[{"date":"2026-06-16","event":"Listed as under construction in the WNA world table, grid connection estimated 2030","source":"https://world-nuclear.org/information-library/current-and-future-generation/plans-for-new-reactors-worldwide"},{"date":"2026-06-19","event":"Concrete pouring began for reactor shaft","source":"https://www.world-nuclear-news.org/articles/concrete-poured-for-reactor-shaft-at-leningrads-eighth-unit"},{"date":"2026-08-05","event":"157-t core-catcher body installed three months ahead of schedule (Titan-2); first large equipment installation at unit 4","source":"https://www.nucnet.org/news/russia-announces-construction-progress-at-leningrad-2-4-nuclear-plant-8-5-2026"},{"date":"2026-08-12","event":"First 97-t tier of the inner containment shell installed ahead of schedule; RPV installation scheduled H2 2029","source":"https://www.neimagazine.com/news/leningrad-8-containment-rises/"}],"sources":["https://world-nuclear.org/information-library/current-and-future-generation/plans-for-new-reactors-worldwide","https://pris.iaea.org/pris/","https://www.world-nuclear-news.org/articles/concrete-poured-for-reactor-shaft-at-leningrads-eighth-unit","https://www.nucnet.org/news/russia-announces-construction-progress-at-leningrad-2-4-nuclear-plant-8-5-2026","https://www.neimagazine.com/news/leningrad-8-containment-rises/"],"last_verified":"2026-09-28","verified":true,"confidence":"medium","notes":"Construction start Mar 2025 per Rosatom via NucNet (operator-origin; recorded as medium). General contractor Titan-2. Rosenergoatom chief Jul 2026: 55 workfronts, on/ahead of schedule; replacement units commissioning 2030 (unit 3) and 2032 (unit 4) — tracker CODs 2029/2030 retained pending WNA revision.","tags":["ru","vver-1200"],"updated_at":"2026-09-28","slippage_years":null}}