First criticality reached at Olkiluoto-3
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The long-delayed Unit 3 at Finland’s Olkiluoto nuclear power plant has achieved initial criticality, plant owner and operator Teollisuuden Voima Oyj (TVO) announced this morning. The reactor, a 1600-MWe Generation III+ EPR supplied by Framatome, started up at 3:22 a.m. local time.