en.Wedoany.com Reported - On June 1, Unit 1 of the Kursk Nuclear Power Plant Phase II was shut down for short-term routine maintenance. Since its first connection to Russia's power system in December 2025, this new unit has demonstrated stable and efficient operation, generating approximately 2.4 billion kWh of electricity during this period.

Alexander Uvakin, Director of the Kursk Nuclear Power Plant, stated: Routine maintenance is a standard part of the lifecycle of any nuclear power unit, even for highly technical units like the VVER-TOI. In the early stages of operation, equipment is in a break-in phase, so it is particularly important to closely monitor the unit's condition. We must identify any minor issues, carry out preventive maintenance, and predict and contain operational deviations at an early stage. This affects not only safety levels and power generation but also the economic efficiency of the unit. The VVER-TOI participates in the capacity market, and any shutdown could result in high fines for the company.

More than 500 experts from the Kursk Nuclear Power Plant and contracting units will participate in this maintenance. They will perform diagnostics and technical maintenance on main and auxiliary equipment in the reactor building and turbine building. Additionally, the maintenance work includes cleaning heat exchange equipment to ensure stable unit operation. After completing all comprehensive inspections, the VVER-TOI unit will be reconnected to the grid for power generation.

It is reported that the construction of Units 1 and 2 of the Kursk Nuclear Power Plant Phase II has been included in Russia's national project "New Nuclear Energy and Energy Technologies," which is planned to be implemented until 2030. As a replacement power plant construction project, this project has strategic significance for the sustainable development of Russia's nuclear industry.

Currently, the Kursk Nuclear Power Plant Phase II is the only site in Russia where one of the most advanced technologies in the global nuclear energy field is being implemented, namely the project adopting the VVER-TOI reactor unit design.

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