Sustainable potential of shallow geothermal heat recycling in Dresden, Germany

Research output: Contribution to journal › Research article › Contributed › peer-review

Contributors

  • Verena Dohmwirth - , Karlsruhe Institute of Technology (Author)
  • Kathrin Menberg - , Karlsruhe Institute of Technology (Author)
  • Peter Bayer - , Martin Luther University Halle-Wittenberg (Author)
  • Matthias Mauder - , Chair of Meteorology (Author)
  • Philipp Blum - , Karlsruhe Institute of Technology (Author)
  • Susanne Benz - , Karlsruhe Institute of Technology (Author)

Abstract

In this study, we investigate the geothermal potential of the shallow subsurface in Dresden, Germany. The analysis considers the status quo scenario in which accumulated heat can be recycled. Installing all possible geothermal systems based on the available space, this heat could supply Dresden's residents for 3 years with energy for space heating. However, a fair CO 2 price would have to be implemented to improve economic value. Next, a near-future scenario is studied, in which accumulated heat has been recycled and, considering all technical constraints, the annual heat input provides a sustainable potential that can provide up to 4.5% of annual heating demands (HDs). However, there is a very high spatial variability that is studied in regard to its socio-economic implications. Finally, two far-future scenarios (SSP245 and SSP585) are studied to understand the effect of climate change on the suitability of geothermal systems. Depending on the scenario and circumstances, up to 82% of the city's climate neutrality targets might be reached. This article is part of the theme issue 'Urban heat spreading above and below ground'.

Details

Original languageEnglish
Article number20250013
JournalPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Volume383
Issue number2308
Publication statusPublished - 6 Nov 2025
Peer-reviewedYes

External IDs

PubMed 41194648
ORCID /0000-0002-8789-163X/work/226836048

Keywords

Keywords

  • fair carbon price, sustainable supply rate, technical geothermal potential