Reliable and efficient operation of the energy systemThe information in this section is based on the results of the activities of JSC Rosseti Kuban for January — November 2025 and the Kubanenergo branch of PJSC Rosseti South for December 2025.
In 2025, PJSC Rosseti South has generally accomplished the main task of its production activities, i.e., maintaining a sufficient level of reliability of the functioning of power grid equipment. The Company has fully implemented its repair programme within the established time limit, implemented a set of measures aimed at improving the reliability of power supply to consumers, and received certificates of readiness for operation during the
Indicators | 2023 | 2024 | 2025 | 2025/2024, % |
|---|---|---|---|---|
System average interruption duration index per point of delivery (Isaidi), h | 3.379 | 3.343 | 3.338 | –0.2 |
System average interruption frequency index per point of delivery (Isaifi), interruptions | 1.796 | 1.689 | 1.588 | –6.0 |
Number of disturbances (emergencies) in the 110 kV and above grid | 1,366 | 1,255 | 1,299 | +3.5 |
Major and significant accidents in 2025 were avoided thanks to the power grid maintenance and repair measures, planned measures under the reliability improvement programme, as well as equipment upgrade and replacement programme. These events were investigated under the chairmanship of the Federal Service for Environmental, Technological and Nuclear Supervision.
The system average interruption duration in the 0.4 kV and above grid was 2.4 hours.
Preparedness to respond to potential disturbances
Regardless of the time of year and weather conditions, the employees of PJSC Rosseti South are ready to eliminate the consequences of possible disturbances. A total of 1,052 teams, 5,130 people, 2,431 units of automotive and special vehicles, as well as two mobile
To restore power supply to consumers, a fleet of 466 emergency power supply sources (EPSS) were formed with a total capacity of 29,025.9 kW, including 245 EPSS units up to 30 kW with a total capacity of 1,890.9 kW, 221 EPSS units of 30 kW and above with a total capacity of 27,135 kW.
Contracts and agreements were concluded on the involvement of manpower and resources of contractors consisting of 380 teams totalling 1,902 people and 797 automotive and special vehicles.
