- #PROBLEMS WITH REAKTOR 6 CRACK DEEP STATUS UPGRADE#
- #PROBLEMS WITH REAKTOR 6 CRACK DEEP STATUS LICENSE#
#PROBLEMS WITH REAKTOR 6 CRACK DEEP STATUS LICENSE#
The extended maintenance was also made to prepare for a license renewal application.
#PROBLEMS WITH REAKTOR 6 CRACK DEEP STATUS UPGRADE#
A similar upgrade to unit 1 was performed in 2018. In 2017, unit 2 was upgraded and modernized, increasing the output further to 890 MW from the beginning of 2018. The upgrades increased the net electrical output by 20 MW to 880 MW each.
Major upgrades were carried out to the units in 20, including replacement of turbines and generators, isolation valves, electrical switchgear and seawater pumps. The original power of the reactors was 660 MW. Unit 2 achieved its initial criticality in October 1979 and it started commercial operations in July 1982. Unit 1 achieved its initial criticality in July 1978 and it started commercial operations in October 1979. Unit 1 was constructed by Atomirakennus and unit 2 by Jukola and Työyhtymä. The electrical equipment was supplied by Strömberg. The reactor pressure vessels were constructed by Uddcomb Sweden AB, and reactor internal parts, mechanical components by Finnatom. The units' architecture was designed by ASEA-Atom. Turbine generators were supplied by Stal-Laval. The main contractor was ASEA-Atom, now a part of Westinghouse Electric Sweden AB. Units 1 and 2 consists of two BWRs, each producing 890 MW of electricity. Regular production is expected to begin in December 2022, after a test production phase. In May 2022, foreign material was found in the turbine steam reheater, and the plant was shut down for about three months of repair work. The reactor eventually started up on 21 December 2021, and electricity production started on 12 March 2022. The start of commercial operation was originally planned for May 2009 but was postponed repeatedly. Unit 3 is an EPR reactor and has been under construction since 2005. A third reactor, Unit 3, reached first criticality in late 2021, and at a nameplate capacity of 1,600 MW net electric output, will by itself satisfy 14% of the country's electricity demand. The Olkiluoto plant consists of two boiling water reactors (BWRs), each producing 890 MW of electricity, together comprising 22% of the country's electricity generation for 2020. The plant is owned and operated by Teollisuuden Voima Oyj (TVO), a subsidiary of Pohjolan Voima, and is located on Olkiluoto Island, on the shore of the Gulf of Bothnia, in the municipality of Eurajoki in western Finland, about 20 kilometres from the town of Rauma and about 50 kilometres from the city of Pori. The Olkiluoto Nuclear Power Plant ( Finnish: Olkiluodon ydinvoimalaitos, Swedish: Olkiluoto kärnkraftverk) is one of Finland's two nuclear power plants, the other being the two-unit VVER Loviisa Nuclear Power Plant.