The most extensive annual maintenance outage ever carried out at TVO's nuclear power plant has completed in 8th of June. Revision was completed in the evening when Olkiluoto 2 plant unit was connected to the Finnish national grid.
The plant upgrades executed at Olkiluoto 2 improved further on the technical reliability of plant unit. An enhanced efficiency of the turbine island is about to increase the net electrical output of the plant unit by almost 20 Megawatts. Olkiluoto 1 underwent a similar major maintenance outage last year.

- Olkiluoto 2 plant unit's outage, which took a bit less than 29 days, was the most comprehensive ever carried out at TVO's plant history. The most significant projects completed were replacement of low-pressure turbines, steam extraction lines, generator and its cooling system, I&C for condensate clean up system, inner isolation valves of main steam lines, low voltage switchgears and main seawater pumps, explains Senior Vice President responsible for...