Selected data on the transmission system for the year 2021

ItemValue
Transmitted electricity 32 807,142 GWh
Losses in the transmission system 324,654 GWh
Losses in the transmission system (%) 0,990 %
Electricity transmitted by transformers of the transmission system 19 368 717,391 MWh
Power losses on the day and hour of the peak of the electricity system 47,537 MW
Maximum power losses in the transmission system 98,437 MW
Time of full losses of the transmission system 3 298,089 hours
Unsupplied energy due to faults 20,49 MWh
400 kV Average operating costs per 1 km of line in total11 517,959 €
Average operating costs for repair and maintenance of 1 km of line747,579 €
220 kV Average operating costs per 1 km of line in total2 528,203 €
Average operating costs for repair and maintenance of 1 km of line45,181 €
110 kV Average operating costs per 1 km of line in total5 497,920 €
Average operating costs for repair and maintenance of 1 km of line0,000 €
Average operating costs per 1 bay of substation 291 622,481 €
Average operating costs for repair and maintenance of 1 bay of substation 16 332,067 €
The ratio of employees outside the headquarters of SEPS, a.s. 49,183 %
Total lenght of Optical Ground Wires 2 119,557 km
Number of Metering (Slovak power dispatching + Substations)11 171
Signals (SED + ESt)67 117
Commands (SED + ESt)6 545