The third power unit of the Kursk NPP reached full capacity on May 18, 2026, after scheduled maintenance with modernization elements. The work was carried out by station specialists in cooperation with contractors, completing it six and a half days ahead of schedule.
The repair campaign started in March and covered key systems of the RBMK-1000 power unit. Engineers checked and, if necessary, replaced the reactor's technological channels, updated the control and protection system channels, and modernized the main condensate system.
In total, twelve and a half thousand units of equipment from the reactor, turbine, and electrical workshops were involved in the work, and 476 operations with fuel assemblies were carried out.
About two thousand people participated in the project – station personnel, technical support engineers, and contractor specialists. According to Sergey Zyskin, Deputy Chief Engineer for Repair at Kursk NPP, clear planning, well-coordinated team efforts, and the use of robotic systems helped accelerate the work.
The unit's connection to the grid and power ramp-up proceeded normally, without any issues, in full compliance with safe operation regulations. Currently, the station is preparing the fourth RBMK power unit for scheduled maintenance – work is proceeding according to the schedule approved by the Rosenergoatom concern, with all nuclear and radiation safety requirements observed.
