REGEA is a regional energy agency and recognized a center of knowledge and excellence with references and projects throughout the European Union, it was established in 2008 as a joint venture of the City of Zagreb and the Karlovac, Krapina-Zagorje and Zagreb counties. We are a group of professional, ambitious, and positive people who, armed with knowledge and innovation, are changing the way energy is managed in Croatia. We are FEDARENE member since 2011. and coordinator for Klimate KIC Croatia since 2020. We are the only ones who have managed two ELENA projects in the EU.