Green Horizons – Enabling Just Transition CENER 21 – Association Center for Energy, Environment and Resources Slovenian Case of Strategic Green Transition Transferred to Bosnia and Herzegovina Decarbonisation of Heat Supply in Polish Town of Hajnówka Cost-Effective and Safe Heating with Green Energy GAUSS Institute – Foundation for New Technolgies, Innovations, and Knowledge Transfer Renewable Power-to-Heat in the Bitola Region 100 percent renewable foundation WWF Poland WWF Germany