Greta partners just published the « catalogue of technical and operational criteria for shallow geothermal systems ». It summarizes all relevant proven and estimated concepts for the use of geothermal methods in the Alpine environment. Geothermal energy is a renewable energy that can play a significant role facing the challenges of the ongoing energy transition. The GRETA project aims at demonstrating the potential of shallow geothermal energy in the Alpine Space. This kind of tools helps fostering the integration of this technology into future energy plans at different administrative levels.