About us

Croatian Transmission System Operator's mission is electric power system operation and maintenance, electricity transmission, as well as construction and development of electricity transmission network in order to maintain security of supply with minimal costs and environmental protection.

Within the Croatian electricity sector restructuring, the new company HEP-Transmission System Operator Inc. (HEP-OPS) was established, and began operating on April 4th, 2005 in accordance with the Energy Act, the Act Amending the Energy Act and the Electricity Market Act.


On July 2nd, 2013 the Commercial Court in Zagreb, issued a decision for inscription of the company into the Court Register, the equity capital increase, the change of the company, business issues and provisions of the Statement on the Establishment of HEP-Transmission System Operator Ltd. From that day the company operates and participates in legal transactions under the new name – Croatian Transmission System Operator Ltd. (abbreviated HOPS d.o.o.).

HOPS d.o.o. is the sole electricity transmission system operator in the Republic of Croatia, and the owner of the entire Croatian transmission network (400 kV, 220kV and 110kV included voltage levels).

HOPS d.o.o. has the license to carry out electricity transmission as a public service. The company performs its functions transparently and independently in accordance with the Croatian Companies Act.