Transmission and cable lines interconnect power plants, electricity generators and consumers at the high-voltage level. The ELES Company is responsible for 500 km of transmission lines in the 400 kV transmission network, 260 km of transmission lines in the 220 kV transmission network, and 1,800 km of transmission lines in the 110 kV transmission network.
The electric power system in Slovenia is well connected to the neighbouring electric power systems. Slovenia is connected to Austria with two 400 kV and one 220 kV transmission lines, one 400 kV line and one 220 kV line lead to Italy, and three 400 kV, two 220 kV and three 110 kV transmission lines connect Slovenia to Croatia. There are currently no transmission lines between Hungary and Slovenia; however, a 400 kV Cirkovce–Pince connection is planned.
Overhead power lines length
Safety warnings and markings
From the high-voltage substations, transmission lines are connected directly or through transformer stations from the electricity generators to the electric power offtake sites in the consumers’ transmission network. ELES manages and maintains 35 substations with 25 power system transformers with a total power of 5,804.5 MVA. They are located throughout Slovenia, the largest ones being in Beričevo, Podlog, Maribor, Divača, Okroglo and Krško.
Distribution transformer substation