The agreement was signed by the European Union on one side and on the other by Croatia, Albania, Bulgaria, Bosnia-Herzegovina, Macedonia, Montenegro, Romania, Serbia and the UN Provisional Administration in Kosovo.
The agreement will also enable the establishment of a single mechanism for the cross-border transfer or transport of power from Portugal to Greece, Assistant Economy Minister in charge of energy Zeljko Tomsic said.
He added that the agreement would make it possible for Croatia to protect its investments in former Yugoslav republics such as investments in the thermal power plant Gacko in Bosnia and the hydro power plant Obrenovac in Serbia.
He recalled that the agreement with the neighbouring countries did not guarantee ownership rights but exclusively the delivery of significant quantities of electric power, which would help Croatia meet obligations from the Kyoto protocol.
Other Croatian investments - in the nuclear power plant Krsko, Slovenia, and the power plants in Tuzla and Kakanj in Bosnia - have been already regulated, he added.