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Nuclear facilities include nuclear power plants and facilities for nuclear waste management Finland has five active nuclear reactors with a combined gross output of approximately 4,400 MW. In total, the power plants produce more than 30 TWh of ele...https://tem.fi/en/nuclear-facilities-and-projects
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Nuclear power forms the basis of Finland's electricity production Photo: TVO Approximately 40% (39% in 2024) of the electricity produced in Finland comes from nuclear energy. Nuclear energy plays a major role in the implementation of the Finnish C...https://tem.fi/en/nuclear-energy
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26.4.2026 | On 26 April 2026, Minister of Climate and the Environment Sari Multala visited Ukraine to attend memorials commemorating the Chornobyl nuclear power plant accident 40 years ago and to participate in a high-level meeting on improving the plant safety. She also took part in a G7+ meeting in Kyiv to discuss support for Ukraine for the winter of 2026–2027 amid Russia’s continuing attacks on energy and civilian targets.https://tem.fi/en/-/minister-sari-multala-attends-40th-anniversary-commemoration-of-chornobyl-nuclear-accident-in-ukraine
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Environmental impact assessment on the final disposal of very low-level nuclear waste in the Olkiluoto nuclear power plant area On 29 September 2021, the Ministry of Economic Affairs and Employment gave a reasoned conclusion on Teollisuuden Voima ...https://tem.fi/en/vllw-eia
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Nuclear safety Development of the principles governing nuclear safety and the methods for implementing it is largely based on extensive international cooperation. This intensive cooperation already started in the middle of the 20th century. From F...https://tem.fi/en/nuclear-safety
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25.3.2026 | A study describing the alternatives and costs of nuclear energy promotion as well as its effects on the electricity market has been published. The report commissioned by the Ministry of Economic Affairs and Employment and produced by AFRY Management Consulting Oy was submitted to Minister of Climate and the Environment Sari Multala on 25 March 2026.https://tem.fi/en/-/new-report-highlights-means-costs-and-impacts-of-increased-promotion-and-use-of-nuclear-power
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Olkiluoto power plant Photo: TVO There are three operational nuclear power plant units at the Olkiluoto nuclear power plant area. The boiling-water type power plants Olkiluoto 1 and 2 both have an electrical output of 890 MW. Their operating licen...https://tem.fi/en/olkiluoto-power-plant
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Loviisa power plant Photo: Fortum There are two active nuclear power plant units in the Loviisa nuclear power plant area. Fortum Power and Heat Oy owns the nuclear power plant units in Loviisa. The units were commissioned for commercial use in 197...https://tem.fi/en/loviisa-power-plant
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Licensees responsible for nuclear waste management Photo: Posiva Nuclear waste management means all measures necessary to recover, store, handle and permanently dispose of nuclear waste, including measures associated with the decommissioning of a ...https://tem.fi/en/nuclear-energy/nuclear-waste-management
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Spent nuclear fuel will be disposed of in Finland Based on the Finnish Nuclear Energy Act, spent nuclear fuel from Finland must be disposed of in Finland. Accordingly, fuel from abroad may not be transferred to Finland for disposal. The import and...https://tem.fi/en/spent-nuclear-fuel
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Use of nuclear energy must be safe The use of nuclear energy must not cause injury to people or damage to the environment or property. This basic priority of the use of nuclear energy is laid down in the Nuclear Energy Act (990/1987) and it applie...https://tem.fi/en/nuclear-safety-security-and-safeguards
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MEAE has supreme command and control of nuclear energy matters In accordance with the Nuclear Energy Act, the ministry prepares licence decisions for the construction and use of nuclear facilities in Finland. The ministry also oversees that the Nu...https://tem.fi/en/nuclear-energy-administration
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12.3.2026 | The Government submitted to Parliament a government proposal for a new Nuclear Energy Act on 12 March 2026. Under a comprehensive reform, the current Nuclear Energy Act would be repealed and 14 other acts, including the Radiation Act and the Criminal Code, would be amended. The government proposal has been carefully prepared and contains more than 550 pages. According to a statement issued by the Finn...https://tem.fi/en/-/reform-of-nuclear-energy-act-to-modernise-nuclear-plant-regulation-and-ease-new-nuclear-energy-investments
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Responsible final disposal of spent nuclear fuel The spent nuclear fuel from the operational Finnish nuclear power plants is intended to be disposed of at a final disposal facility to be built in Olkiluoto, Eurajoki. The planned facility has an ab...https://tem.fi/en/final-disposal-of-spent-nuclear-fuel
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Environmental impact assessment report for Loviisa nuclear power plant On 14 January 2022, the Ministry of Economic Affairs and Employment released its reasoned conclusion on the environmental impact assessment report of Fortum Power and Heat Oy’s...https://tem.fi/en/loviisa-eia-report
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Applications for Decisions-in-Principle on Fennovoima Nuclear Power Plant Project In 14 January 2009 Fennovoima Oy submitted an application to the Government for a Decision-in-Principle on the construction of a nuclear power plant at Pyhäjoki, Ruo...https://tem.fi/en/processing-of-decisions-in-principle
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Report on the environmental impact assessment procedure for Olkiluoto nuclear power plant On 5.12.2024, Teollisuuden Voima Oyj submitted to the Ministry of Economic Affairs and Employment an environmental impact assessment report (EIA report) in a...https://tem.fi/en/olkiluoto-1-and-2-eia-report
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Fennovoima cancels its construction licence application for nuclear power plant in Pyhäjoki Photo: Fennovoima On 24 May 2022, Fennovoima Oy submitted to the Ministry of Economic Affairs and Employment a notification by which it cancels the constru...https://tem.fi/en/nuclear-facilities-and-projects/fennovoima
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Environmental impact assessment procedure for Loviisa nuclear power plant -EIA programme On 13 August 2020, Fortum Power and Heat Ltd submitted an environmental impact assessment programme (EIA programme) under the Environmental Impact Assessment ...https://tem.fi/en/loviisa-1-and-2-eia-programme
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Environmental impact assessment programme for the Olkiluoto nuclear power plants Olkiluoto 1 and Olkiluoto 2 On 5.1.2024, Teollisuuden Voima Oyj submitted to the Ministry of Economic Affairs and Employment an environmental impact assessment progra...https://tem.fi/en/olkiluoto-ol1-ja-ol2-eia-programme