Enhancing energy supply reliability

Since current construction and update tempo is low, grids are ageing both physically and morally. Average depreciation of substations, cable and aerial lines is around 67%. To ensure reliable and sustainable grid performance we acknowledge the following measures as high-priority ones:

  • Overcome of fixed asset ageing tendency: replacement of morally and physically obsolete equipment and implementation of new cutting-edge technologies, equipment and materials with advanced durability and reliability.
  • Decrease of energy losses: voltage regulation in 6-10 kV networks, outcommission of underloaded transformers, discharge of overloaded line segments, and capacity enhancement due to reactive power management.
  • Quality improvement of repair and maintenance services, decrease of quantity and continuity of shutdowns using modern technologies.
  • Monitoring the performance of existing power equipment and implementation of modern methods and appliances for testing and diagnostics: thermal image control, burn-free methods for cable isolation control.
  • Update and modernization of substations: enhancement of installed transformer capacity.
  • Implementation of new-generation coupler devices and telematics, development of IT-technologies.
  • Renewal of special-purpose vehicle pool.
  • Usage of new information technologies in grid management (SAP 6.0).

The following key principles are posited into our strategy of perspective grid evolution:

  1. Satisfaction of demand and creation of capacity reserve outstripping regional economy progress.
  2. Provision of high-quality and reliable energy supply.
  3. Construction of new feed units.
  4. Discharge of current transits.
  5. Network spoke-ring structure.
  6. Limitations of 35 kV voltage application and transition of networks onto high voltage classes.
  7. Development of 220 kV grids for transmission and distribution of power from main 220(500) kV substations and power plants.
  8. Implementation of new modern equipment.