Loviisa nuclear power plant

Loviisa power plant has two VVER pressurised water reactors, Loviisa 1 and Loviisa 2, with capacities 507 MW net (LO1) and 502 MW net (LO2). Loviisa 1 was commissioned in 1977 and Loviisa 2 in 1980. The operating licence for Loviisa 1 is valid until 2027 and Loviisa 2 until 2030. In 2017, Loviisa power plant generated 8.16 TWh power, which contributes to more than 10 per cent of the electricity production in Finland. The power plant permanently employs approximately 500 employees and 100 external employees. Additionally, annual outages, modernisation works employ some 700 - 1300 external employees annually.
Nuclear power has a central role in Fortum's CO2-free electricity production. Nuclear is needed to enable transition to solar economy.

Loviisa NPP in 2017

8.16 TWh

Loviisa NPP production in 2017


Share of Finland's electricity production


The power plant continuously employs


In 2017, the annual production totalled 8.16 TWh which is more than 10% of Finland's electricity production.

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In 2017, Loviisa nuclear power plant was among the best in the world for pressurised water reactor power plants.

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A multiple isolation principle is applied in the planning, building, operation and decommissioning of a nuclear power plant.

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Environmental impacts

When reviewing the entire production lifecycle, the climate impact of operating nuclear power is similar to that of wind, solar or hydropower.

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We publish several nuclear related publications. Here you can find all of them.

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The Loviisa power plant was the first nuclear power plant in Finland. Get to know Loviisa's history.

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Do you want to visit at the Loviisa power plant? Here you can find contacts for Loviisa power plant.

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Read news and topical items on nuclear power.