Challenges of High Renewable Energy Sources Integration in Power Systems—The Case of Croatia

This paper presents a high-level overview of the integration renewable energy sources (RES), primarily wind and solar, into electric power system (EPS) in Croatia. It transmission aspects for particular case this country. explains current situation technical characteristics conventional generation units currently installed capacities. Based on future development scenario is determined used to evaluate impacts wide-scale renewables. Grid connections aspects, balancing, market participation, inertia reduction are considered. Furthermore, some specifics both solar discussed identifying problems potential solutions. Primarily through provision inertial response better forecasting production. Finally, outlook Croatian given, that will most probably double its RES capacity coming 3-year period certain level investments changes operational practices need be provided.