Nuclear power in Finland

As of 2008, Finland's nuclear power program has four nuclear reactors in two power plants, all located on the shores of the Baltic Sea. The first of these came into operation in 1977. In 2007 they provided 28.4% of Finland's electricity. They are among the world's most productive, with average capacity factors of 94% in the 1990s. A fifth reactor is under construction, scheduled to go online in 2018 or later. If all planned projects are completed, the share of electricity produced by nuclear could double by 2025, reaching around 60%.

Located in Loviisa, on the south coast (Gulf of Finland), the plant comprises two VVER-440 pressurized water reactors built by Soviet Atomenergoexport, but fitted with Western instrumentation, containment structures and control systems. The plant is owned and operated by Fortum. Electrical production started in 1977 and 1980, with the reactors now producing 496 MWe each. On 26 July 2007 new licenses were granted to Fortum to operate the units until 2027 and 2030, conditional on safety reviews before 2015 and 2023.

The Olkiluoto plant is owned by Teollisuuden Voima (TVO), and is located in Eurajoki, on the west coast, near Rauma. It has two boiling water reactors currently producing a total of 1,720 MWe. They were built by the Swedish company Asea-Atom (nowadays ABB Group), and went online in 1978 and 1980.

Areva is building a third reactor at the Olkiluoto site for a fixed price of €3 billion ($4.1 billion). It will be the first European Pressurized Reactor (EPR), and will have a power output of 1,600 MWe. An 800 MW undersea transmission line from near Olkiluoto to Sweden was scheduled to be completed in 2011, allowing the import and export of additional power. The reactor was originally scheduled to start production in 2009, then was scheduled to do so no earlier than 2015, and is currently planned for 2018, nine years behind schedule. Total costs now exceed 8.5 billion euro and plans for a possible fourth plant has been discarded.

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