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    Preparations underway for major modernisation projects at Loviisa Nuclear Power Plant

    FORTUM CORPORATION PRESS RELEASE 5 January 2026 In 2025, Loviisa Nuclear Power Plant generated a total of 7.9 terawatt-hours of electricity. The plant's electricity production accounts for approximately 10% of the electricity consumed in Finland, which is nearly equivalent to the electricity consumption of the entire Helsinki metropolitan area. Loviisa 1 produced 4.0 TWh with an availability of 89.9%, while Loviisa 2 produced 3.9 TWh with an availability of 88.8%. The overall availability of the plant was 89.4%. “Production and availability were at a good level, although we fell

    Fortum’s Loviisa nuclear power plant annual outage 2025 completed

    FORTUM CORPORATION PRESS RELEASE 6.10.2025 Both units at the Loviisa nuclear power plant are back in production after completion of their annual outages. During the annual outages, about a quarter of the fuel in both units was replaced. In addition to refuelling, several preventive maintenance, servicing, and inspection tasks were carried out.  The annual outage of the power plant’s Unit 2 was delayed by approximately 12 days and the outage was continued for some time in parallel with the outage of Unit 1. The annual outage of Unit 2 was completed on 18 September 2025. The annual

    Loviisa nuclear power plant’s main seawater pumps to be renewed

    FORTUM CORPORATION PRESS RELEASE 11.12.2024 Fortum’s Loviisa nuclear power plant is renewing the main seawater pumps and motors of both plant units. The renewal is part of the Loviisa power plant’s lifetime extension-related investments and continuous improvement to ensure reliable electricity production until the end of the plant's lifetime. ”The existing main seawater pumps at the Loviisa power plant are nearing the end of their life cycle. This investment is part of the very controlled and professional ageing management that is a prerequisite for the safe, reliable and profitable

    Fortum Loviisa nuclear power plant’s annual outage 2024 to begin

    FORTUM CORPORATION PRESS RELEASE 31.7.2024 The annual outage of Fortum’s Loviisa nuclear power plant will begin with Unit 2 on Sunday, August 4th, followed by the servicing of Unit 1. This year, Loviisa 2 will undergo a short outage and Loviisa 1 will undergo the extensive annual outage, i.e. the so-called 4-year annual outage. The annual outages are expected to last approximately 51 days. During the annual outages, a quarter of the fuel will be replaced. In addition to this, both units will undergo various types of preliminary maintenance work, inspections, repairs and tests.  ”

    Fortum’s Loviisa nuclear power plant low-pressure turbines to be modernised, increasing capacity by approximately 38 MW

    FORTUM CORPORATION PRESS RELEASE 29.5.2024  Fortum’s Loviisa nuclear power plant’s low-pressure turbines will be modernised. The modernisations, starting in 2026, are part of the lifetime extension-related investments consisting of continuous improvements to ensure reliable electricity production until the end of the plant's lifetime. The modernisation of the turbines will also increase the total capacity of the plant by approximately 38 megawatts, increasing the output of the power plant during its lifetime by approximately 7 terawatt-hours. In February 2023, the Finnish Government

    Fortum’s Loviisa nuclear power plant generated 8.09 terawatt-hours of carbon-free electricity in 2023

    FORTUM CORPORATION PRESS RELEASE 4.1.2024 Fortum’s Loviisa nuclear power plant had a good production year in 2023. The power plant generated a total of 8.09 terawatt-hours of carbon-free electricity.  Loviisa 1 generated 3.99 TWh of power and its load factor was 89.79%; Loviisa 2 generated 4.10 TWh of power and its load factor was 92.32%. The combined load factor of the plant units was 91.06%. “Last year Loviisa produced about 10% of Finland’s electricity demand. This is equivalent to the electricity consumption of the entire Helsinki metropolitan area,” says Sasu Valkamo, Vice

    Fortum Loviisa power plant’s annual outage 2023 to begin

    The annual outage of Fortum’s Loviisa nuclear power plant will begin with Unit 2 on Sunday, August 20th, followed by the servicing of Unit 1. This year, both units will undergo the short so-called refuelling outage. The annual outages are estimated to last a total of about 37 days. During the annual outage, one quarter of the fuel will be replaced. In addition to the fuel replacement, both units will undergo various preliminary maintenance work, inspections, repairs and tests. Additionally, the automation modernisation of Loviisa Unit 1’s emergency generators, which was started in the

    Good production year 2022 at Fortum’s Loviisa nuclear power plant

    FORTUM CORPORATION BUSINESS PRESS RELEASE 3.1.2023 Fortum’s Loviisa nuclear power plant had a good production year in 2022. The power plant generated a total of 7.9 terawatt-hours (net) of carbon-free power. Thanks to the Loviisa nuclear power plant’s electricity production, Finland emits about 6 million tonnes less carbon dioxide emissions annually compared to the equivalent amount of fossil fuel-based electricity. On an international scale, the 89.4 % load factor of the Loviisa nuclear power plant was among the best in the world for pressurised water reactors. Loviisa Unit 1’s load

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