The Olkiluoto 3 plant unit has been granted permission for startup

16.12.2021

The Radiation and Nuclear Safety Authority in Finland (STUK) has today on December 16, 2021 granted Teollisuuden Voima Oyj (TVO) the permission for making the reactor critical and conducting low power tests. The nuclear reaction in the OL3 EPR plant unit’s reactor will be initiated for the first time during December 2021. Electricity production will start at the end of January 2022 and regular electricity production in June 2022.