New Potential Map for Deep Geothermal Energy
The update to the Bavarian Energy Atlas on well temperatures, flow rates, and thermal output shows where deep geothermal energy can be used economically and whether the use of large-scale heat pumps may be feasible.
October 21, 2026
Source: Bavarian Energy Atlas
Municipalities can now assess their potential more quickly. The map also indicates whether a large-scale heat pump is required for this.
Southern Bavaria offers favorable conditions for extracting heat from thermal water: The hydrothermal flow temperature in the Upper Jurassic (Malm) is particularly high. Heat from deep geothermal energy can contribute to supplying buildings via a district heating network or fully meet their heating needs.
With new data on hydrothermal extraction temperature and heat extraction capacity, the Bavarian Energy Atlas now helps municipalities assess the potential of deep geothermal energy.
Methodology
Our project partner at the Technical University of Munich (Chair of Hydrogeology) cross-referenced rock temperature forecasts with measurement data from 34 geothermal plants and thermal water wells in the Bavarian Molasse Basin. In addition, existing data was used to estimate how much thermal water can be extracted. Based on these two datasets, the extraction rate can be determined.
What do the new maps show?
You can now access this data (selection):
- Extraction temperature of the thermal water
- Thermal output (average, pessimistic, and optimistic expected values)
- Extraction rate (average, pessimistic, and optimistic expected values)
If the temperature is too low for direct use, the recommendation is to additionally install a large-scale heat pump, which increases the total output in accordance with the coefficient of performance.
Here you will find the potential map for deep geothermal energy.
Author: Bayern Innovativ Editorial Team
