{"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":"kudankulam-3","name":"Kudankulam-3","plant":"Kudankulam","unit":3,"country":"IN","region":"asia","reactor_type":"PWR","design":"VVER-1000","capacity_mw_net":917,"is_smr":false,"vendor":"Rosatom","owner_operator":"Nuclear Power Corporation of India (NPCIL)","vendor_id":"org:rosatom","owner_operator_ids":["org:npcil"],"design_id":"design:vver-1000","site_id":"site:kudankulam","status":"commissioning","construction_start":"2017-06-29","original_cod_target":2023,"current_cod_estimate":2027,"milestones":[{"date":"2017-06-29","event":"First concrete, Unit 3","source":"https://pris.iaea.org/pris/"},{"date":"2025-12-10","event":"First fuel batches delivered to site for Unit 3","source":"https://www.wionews.com/india-news/commissioning-of-kudankulam-unit-3-to-start-in-2026-rosatom-chief-1764940729347"},{"date":"2026-04-25","event":"'Spill to open reactor' commissioning milestone reached","source":"https://www.world-nuclear-news.org/articles/flushing-of-safety-systems-begins-for-kudankulam-unit-3"},{"date":"2026-06-30","event":"'Spillage to Open Reactor' — flushing of passive and active safety systems and main coolant pipelines — completed, per NPCIL monthly achievements","source":"https://www.npcil.nic.in/WriteReadData/userfiles/file/MA_News_30072026_01.pdf"},{"date":"2026-08-13","event":"PIB Rajya Sabha written answer (DAE Minister): KKNPP-3 commissioning revised from original Mar-2023 to Jun-2027; revised cost Rs 68,893 crore (from Rs 39,849 crore)","source":"https://www.pib.gov.in/PressReleasePage.aspx?PRID=2298859"}],"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/flushing-of-safety-systems-begins-for-kudankulam-unit-3","https://www.npcil.nic.in/WriteReadData/userfiles/file/MA_News_30072026_01.pdf","https://www.pib.gov.in/PressReleasePage.aspx?PRID=2298859","https://www.neimagazine.com/news/active-commissioning-for-kudankulam-3/"],"last_verified":"2026-09-15","verified":true,"confidence":"high","notes":"Government's official revised COD is June 2027 (PIB Rajya Sabha answer, 2026-08-13), superseding the plant director's 2026 ambition; revised cost Rs 68,893 crore. 'Spillage to open reactor' completed June 2026; fuel loading not yet reported — unit remains in pre-fuel commissioning. Units 4-6 need separate entries.","tags":["india","rosatom","vver","npcil"],"updated_at":"2026-09-15","slippage_years":4}}