The ultimate and main goal of countries in transition is the integration into the European Union and the integration of energy systems is a natural process. The first step is the restructuring of energy systems at the national level, by separating generation, transmission, distribution and supply, followed by the gradual introduction of market rules.
After that, the goal is the integration of national energy in continental, first at the regional level. The Republic of Croatia has accepted all the energy requirements of the European Union and implemented them in practice, and the same is expected from the other candidate countries for membership. The energy sector is one of the most important parts of the national economy.