Reliable and Efficient Operation of the Energy System

The assurance of the specific level of power supply reliability and quality is a strategic focus of our Company. Measures were put in place to reduce the number of disturbances, accident rate, power losses in grids, and improve customer service quality in order to meet the objectives established for 2022.
VLADIMIR MIKHAILOV
Vladimir Mikhailov Deputy General Director for Technical Issues — Chief Engineer

High-Quality, Reliable and Uninterrupted Power Supply to Consumers

In 2022, Rosseti Kuban generally succeeded in achieving the primary goal of its production activity, i.e., keeping the reliability of the power equipment at an appropriate level.

Within the specified period of time and to the fullest extent possible, Rosseti Kuban completed the repair programme and took a series of steps to increase the reliability of the power supply to consumers. In addition, the Company obtained a certificate of readiness to work during the 2022/2023 heating season.

Indicator Values established by the RPC-PTD KT Value achieved by Rosseti Kuban
Plan Plan, taking into account the permissible deviation Actual
System average interruption duration index, per point of delivery (I saidi), hour 4.3143 5.609 2.8424
System average interruption frequency index, per point of delivery (I saifi), interruptions 0.9950 1.2935 1.2195

The core initiatives in 2022 were focused on:

Maintaining the rated parameters of production assets — power transmission lines, substation equipment, and relay protection and automation (RPA) devices

Identifying and eliminating defects in a timely manner based on the power equipment diagnostics results

Ensuring readiness for prevention of and response to disturbances

  • Prolonged agreements with contracting and related power grid organisations, as well as with the Russian Ministry of Emergency Situations and the Federal Service for Hydrometeorology and Environmental Monitoring (Rosgidromet)
  • Ensured readiness of 404 teams, 1,879 employees, 776 units of equipment, including 22 mobile teams (124 employees) equipped with appropriate technical means (49 units, including 22 motor vehicles and 27 units of special equipment), tools, rigging gear, sets of spare parts, communication aids, emergency sets of special clothing, food rations and financial means
  • Stocked the Company’s emergency supplies
  • Checked operational readiness of 121 emergency power supply sources (EPSS) with a total capacity of 14,262.5 kW, of which 110 mobile EPSSs with a total capacity of 13,810.5 kW
  • Conducted four combined exercise on cooperation during response operations with the threat of power supply interruption, involving representatives of the Ministry of Emergency Situations of Russia in the Krasnodar Territory and the Republic of Adygeya, executive bodies of the Krasnodar Territory and the Republic of Adygeya and local self-government authorities

Preparations for the heating season have been completed successfully.

Successful preparations were made for the heating season Every year, the Company confirms its readiness for operation during the heating season and obtains a respective readiness certificate. The preparations for the heating season 2022/2023 covered production programmes, scheduled emergency training exercises and drills and Rostechnadzor-prescribed measures. Order of the Ministry of Energy of Russia No. 1185 dated 3 November 2022 was given to approve the assessment of the readiness of power industry facilities to work in the 2022/2023 heating season.

Kuban Headquarters operates continuously, and its representatives regularly take part in works to ensure the security of power supply in the Krasnodar Territory and the Republic of Adygeya. This is done to provide the reliable operation of the power grid complex under conditions of power supply interruptions and other abnormal situations involving power supply interruptions.

The Central Flood Commission of the Company, which is a part of the Kuban Headquarters, and similar commissions of the Company’s branches handled the preparation for the flood period. During the preparations, 82 activities were implemented:

  • Power grid facilities in potential flood zones were monitored, and the list of such families was updated. According to the monitoring results, up to 387 facilities (0.5% of the total number of power facilities) fall into the potential flooding zone, including 110 main grid facilities (24 35–220 kV substations, 86 sections of 35–110 kV overhead lines) and 277 distribution grid facilities (212 10–0.4 kV distribution grid sections and 65 10/0.4 kV transformer substations)
  • Exercises were held with territorial bodies of the Russian Unified Emergency Rescue Service (RUERS) to practise the actions of the Company’s management bodies, forces and equipment in the event of natural and man-made emergencies/emergencies caused by dangerous weather phenomena during the flooding period
  • A total of 54 anti-accident exercises were conducted in the Company’s electric grid branches to mitigate potential consequences of flooding of power facilities
  • Flood commissions held 11 meetings to review issues on preventing and responding to potential disturbances and/or emergencies at the Company’s power facilities during the spring-summer flood period
  • Representatives of the Company took part in meetings of the Commissions for Emergency Prevention and Response and Fire Safety of the administrations of Krasnodar Territory and the Republic of Adygeya on the readiness of power grid equipment in the area of operational responsibility of the Company to go through the flooding period of 2022. No claims or complaints were made against the Company by the executive authorities or the above-mentioned commissions
  • Overhead power line crossings (1,994 towers) and 89 overhead power grid facilities were inspected; no damage was detected
  • Availability and good technical condition of special equipment, vehicles and mechanisms were ensured
  • The availability and storage locations of the emergency supplies were checked; the inspection established that the equipment, materials and spare parts of the emergency supplies are complete as required by the List; the storage conditions of equipment, materials, spare parts, as well as access routes are adequate to ensure prompt loading of materials and equipment for their delivery to accident-caused damage elimination locations
  • Checks were carried out to ensure that the teams have all the equipment, gear and protective means, that the accessories, special vehicles, machinery and mechanisms are ready for the work, that communication equipment and notification flow charts are in place and in good working order. The checks did not reveal any violations of the storage rules for protective means, tools and appliances

Readiness checks of the following items were carried out:

      • Company’s material and human resources for the mitigation of the disturbance consequences due to the flooding impact on power grid facilities. The inspection results showed that 391 teams, 1,819 people, 754 vehicles, including 22 mobile teams (123 people) equipped with appropriate technical means (49 units, including 22 motor vehicles, 27 units of special vehicles), tools, rigging gear, sets of spare parts, communication means, emergency sets of special clothing, food rations and financial means are ready to roll
      • Watercraft and water pumping equipment. Available watercraft (four small boats including two motorboats with Yamaha-40 engine) and 27 motor pumps are ready for service in case of flooding
      • Emergency power supply sources (EPSS). A total of 121 EPSSs with a total capacity of 14,262.5 kW were made available, of which 110 mobile EPSSs with a total capacity of 13,810.5 kW

The Company’s Grid Control Centre every day communicated with the regional centres for hydrometeorology and environmental monitoring of the Krasnodar Territory and the Republic of Adygeya and the Sochi Hydrometeorological Centre, as well as crisis management centres of the Chief Directorates of the Ministry of Emergency Situations of Russia in the Krasnodar Territory and the Republic of Adygeya to obtain operative information on weather conditions and flood situation at the water bodies of the Krasnodar Territory and the Republic of Adygeya.

A total of 32 storm warnings and 103 daily hydrometeorological bulletins on adverse weather phenomena were issued during the flooding period, a 31% increase from 2021. These bulletins included information on the water level rise threat in the rivers of the Krasnodar Territory and the Republic of Adygeya.

In 2020–2022, there were no reported fires, ignitions, or emergency power grid equipment shutdowns because of fire impacts.

All activities dictated by the Federal Service for Ecological, Technological, and Nuclear Supervision with a deadline in 2022 were fulfilled and decontrolled.

Main causes of accidents in Rosseti Kuban power grids in 2022 (%)
Preparation for the heating season