Flexibility of the Power to heat on an industrial site
Ravne na Koroškem is a small remote town (population 7,268) with poor transport connection in the north-east part of Slovenia, known for its steel industry. The town is divided into residential, where ELCE is the Distribution system operators (DSO), and industrial area, where PETROL has a role of the DSO. PETROL also owns and operates electricity and heat production, operates district heating and sanitary hot water distribution for the town Ravne na Koroškem. The areas are linked with 2x20kV between each other (DSO-DSO) and both have a direct connection to the TSO 110kV level (DSO-TSO). They also share the same district heating and hot sanitary water system. The medium voltage grid consists of 32 20/0.4 kV substations and one 110/20/5 kV substation, with approximately 10 km of 20 kV cable and 2 km of 5 kV cable.