{"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":"kalpakkam-pfbr","name":"Kalpakkam PFBR","plant":"Kalpakkam","unit":"PFBR","country":"IN","region":"asia","reactor_type":"SFR","design":"PFBR-500","capacity_mw_net":470,"is_smr":false,"vendor":"IGCAR/BHAVINI","owner_operator":"BHAVINI","vendor_id":"org:igcar","owner_operator_ids":["org:bhavini"],"design_id":"design:pfbr-500","site_id":"site:kalpakkam","status":"commissioning","construction_start":"2004-10","original_cod_target":null,"current_cod_estimate":2026,"milestones":[{"date":"2026-06-16","event":"Listed as under construction in the WNA world table, grid connection estimated 2026","source":"https://world-nuclear.org/information-library/current-and-future-generation/plans-for-new-reactors-worldwide"},{"date":"2026-04-06","event":"First criticality achieved","source":"https://dae.gov.in/prototype-fast-breeder-reactor-at-kalpakkam-tamil-nadu-attains-first-criticality/"},{"date":"2026-06-27","event":"AEC chairman reviews low-power physics experiments + BHEL turbine-generator overhaul ahead of grid synchronisation (PIB; Hindu/Indian Express corroborate)","source":"https://www.pib.gov.in/PressReleasePage.aspx?PRID=2278389&lang=2&reg=48"}],"sources":["https://world-nuclear.org/information-library/current-and-future-generation/plans-for-new-reactors-worldwide","https://pris.iaea.org/pris/","https://pris.iaea.org/PRIS/CountryStatistics/CountryDetails.aspx?current=IN","https://dae.gov.in/prototype-fast-breeder-reactor-at-kalpakkam-tamil-nadu-attains-first-criticality/","https://www.pib.gov.in/PressReleasePage.aspx?PRID=2278389&lang=2&reg=48"],"last_verified":"2026-09-28","verified":true,"confidence":"high","notes":"Status moved to commissioning 2026-09-28 (critical Apr 2026 + low-power physics + TG overhaul). 22-year build (FCD 2004). Rajya Sabha Jul 2026 (DAE): stepwise AERB clearances with quarterly inspections; next is power raise, grid sync, then commercial ops (date TBD). BHAVINI twin-unit fleet project in pre-project stage adjacent (context).","tags":["in","pfbr-500"],"updated_at":"2026-09-28","slippage_years":null}}