19 December 2017
Finnish utility Teollisuuden Voima Oyj (TVO) announced today that hot functional tests have started at the first-of-a-kind EPR unit at Olkiluoto. These key pre-operational tests ensure coolant circuits and nuclear safety systems are functioning properly before fuel is loaded.
TVO said it expects the tests - which aim to simulate the temperatures and pressures which the reactor's systems will be subjected to during normal operation - to take several months. (...)