Climate change mitigation requires abandoning the use of peat as energy source. This causes significant harm to the economy of the provinces by, e.g., collapsing the value of peat production equipment and causing severe unemployment. At the same time, peat is being replaced, at least in the early phase, mainly by wood, which weakens the national carbon balance by reducing carbon sinks. New non-combustion-based energy solutions are urgently needed in heat production both in district heating, as well as on the block and property levels. Geoenergy, especially medium-deep geothermal wells drilled into bedrock, have gained prominence as a low-carbon energy form in climate road maps and national pilots of several Finnish provinces. Geoenergy perfectly complements other energy production forms, as it is stable in time and easily predictable. The economic profitability of geoenergy, and especially medium-deep geothermal wells, is likely to improve significantly in the future due to new technologies and repeatability. Geoenergy could play a much more significant role in meeting the challenges posed by the green energy transition. However, it will not happen by itself. A significant boost is required: repeatability and deeper geothermal wells to achieve a higher energy production volume per well. The shift requires more experts in the field, more drillers and drilling equipment, better drilling risk management, better dimensioning tools, reliable background data for designers, cost-effective research methods and a decrease in the total costs of geoenergy systems as know-how and experience accumulate. Promoting all these issues simultaneously nationwide, a geoenergy leap is achieved – a significant boost that will accelerate the utilisation of geoenergy in the provinces, mitigate the unemployment effects and improve local and national climate resilience. To make geoenergy and medium-deep geothermal wells more widespread, research-based data and successful pilot projects are needed so that actors in the field can plan investments, especially in medium-deep geothermal systems. The rapid spread of geoenergy also promotes the achievement of regional and national emission targets. The Geoenergy Leap project is coordinated by GTK in cooperation with local partners. Thus, the project is divided into parts, both provincially and supra-provincially. GTK's work packages are partly cross-regional and partly provincial. The work packages of local partners primarily relate to their own provinces. GTK supports all project parties in their tasks. This cross-regional JTF application concerns Central Ostrobothnia (the province coordinating JTF funding), North Ostrobothnia and Kymenlaakso. The key outcomes of the project are medium-deep (600–800 m) geothermal wells in each province integrated into research and teaching infrastructure built around the wells (e.g., heat pumps, collectors, measuring and calibration devices, integration with heat distribution system), a new public dimensioning tool for medium-deep geothermal energy systems, national bedrock thermal conductivity map, pilot studies on integrating geoenergy into the local heat distribution system and/or as a hybrid with other energy forms, pilot studies on the exploitation of groundwater energy and thermal energy storages, and in general, increasing the knowledge of local actors in the field about the possibilities of geoenergy and its technical, economic and environmental impacts. The Geoenergy Leap aims to initiate a change that will raise the energy self-sufficiency of provinces and security of supply through low-carbon geothermal energy. Essential in this change is the development of geoenergy expertise of local educational institutions through permanent geoenergy demonstration platforms, including geothermal wells in the project provinces. Improved employment and new business opportunities are also expected as the need for system designers and drillers shall increase.