Bulgaria’s Kozloduy nuclear power plant will shut down Unit 5 for its scheduled annual maintenance and refueling starting on May 5, 2025. The maintenance is expected to be completed by mid-June, with a series of necessary technical services, preventive maintenance, upgrades, and repairs being carried out on the unit’s equipment and systems.
This maintenance is part of a continued effort to transition to new nuclear fuel, a process that began in 2024. During this scheduled refueling, the next batch of Robust Westinghouse Fuel Assembly fuel will be loaded into the reactor. The successful operation of Unit 5 after its initial refueling with this new fuel type in spring 2024 confirms the progress of the plant’s nuclear fuel cycle diversification program, ensuring stable operations going forward.
