On October 3rd, VITO, the Geological Survey of Belgium, the University of Liège, Deplasse, Geo-Green, and the SPW organized a day dedicated to geothermal energy in the Walloon region. The objective is to raise awareness and demonstrate how geothermal energy, whether shallow or deep, represents an important lever to decarbonize the region. The event was, among other things, an opportunity to present the ambitions of the Walloon region for geothermal energy and to give an overview of the regulations in force in this field. Furthermore, the results and tools developed in the framework of the project to determine the potential of shallow geothermal energy in Wallonia and the DGE-ROLLOUT project for deep geothermal energy were presented. The Geological Survey of Belgium will also provided information on the upcoming seismic campaign of the DGE-ROLLOUT project.