BioJust – Just Transition for Solid-Fuel-Dependent Households ReRURAL – Renew Rural Areas LIR Evolution Regional Development Agency Green Karst, Ltd. City of Đurđevac RenovAID – Buildings Renovation RenewStart for Hydrogen Technologies Polytechnic University of Tirana Stara Zagora Regional Economic Development Agency Instytut Energetyki / Institute of Power Engineering