Olkiluoto 2 plant unit into cold shutdown state
There has been a disturbance at Olkiluoto 2 (OL2) nuclear power plant at 12.22, which started when the radiation measuring system observed elevated radiation levels inside the plant.
During the reactor scram, the plant has operated as planned. The situation is stable and the plant is in a safe state.
The cooling system of the shutdown reactor feeds water into the cleaning system of the reactor water, where ion exchanging mass has probably started to move in the pipelines. This has resulted in peaked radiation measurements compared to normal levels. The aim is to prepare the plant unit for a cold shutdown state, which means that the plant unit's reactor will be driven down and cooled off. In this case, there is no pressure in the reactor and the temperature is below 100 degrees.
There is no release from the plant. No harm has been caused on people or the environment. We will give more information as soon as the situation develops.
Share