The increasing integration of decentralised renewable energy sources (RES) both in the regions of Slovenia and Croatia has led to a lack of flexibility resources needed to regulate the electricity system. In 2014, the transmission system operators (HOPS and ELES) and distribution system operators (HEP ODS and SODO) of Croatia and Slovenia began to search for joint solutions. The most promising appeared to be the establishment of international cooperation in setting up smart grids – and the idea of the SINCRO.GRID project was born.
Croatia and Slovenia decided to present the project to the European Commission (EC) as a proposal for a Project of Common Interest (PCI) in the field of smart grids. In 2015 the EC included the project on the PCI list.