Advances in Geosciences
Advances in Geosciences
ADGEO
Articles | Volume 67
Articles | Volume 67
https://doi.org/10.5194/adgeo-67-137-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/adgeo-67-137-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 67
10 Feb 2026
 | 10 Feb 2026

Evaluation of a unidirectional ATES for thermal energy supply of the State Hospital Graz South, Austria

Nikolaus Petschacher and Vilmos Vasvári

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Short summary
In cities, large thermal plumes often limit groundwater-based heating and cooling. Unidirectional ATES reverses the well arrangement so heat and cold are transported by natural groundwater flow and reused seasonally. At Graz South Hospital, modeling shows efficient energy recovery, strongly reduced off-site impacts, and high potential for climate-friendly energy supply in space-constrained urban areas.
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