Annual outages reach completion in Olkiluoto
The annual outages of 2019 reached completion on Tuesday, 11 June, at 10.46 p.m. when the Olkiluoto 1 plant unit (OL1) was re-connected to electricity production. This year OL1 underwent a refuelling outage while more extensive maintenance work was carried out at the Olkiluoto 2 plant unit (OL2). The total duration of the annual outages was about six weeks.The start of the annual outage was brought forward by four days at the OL2 plant unit due to damaged fuel assemblies. The most significant activities conducted during the maintenance outage, in addition to refuelling, included e.g. a