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Article

Analysis of Enhanced Geothermal System Development Scenarios for District Heating and Cooling of the Göttingen University Campus

by 1,2,3,* and 1,2
1
Geoscience Centre, Department of Structural Geology and Geodynamics, Georg-August-Universität Göttingen, Goldschmidtstraße 3, 37077 Göttingen, Germany
2
Universitätsenergie Göttingen GmbH, Hospitalstraße 3, 37073 Göttingen, Germany
3
HAWK Hildesheim/Holzminden/Faculty of Resource Management, Göttingen University of Applied Sciences and Arts, Rudolf-Diesel-Straße 12, 37075 Göttingen, Germany
*
Author to whom correspondence should be addressed.
Academic Editors: Béatrice A. Ledésert, Ronan L. Hébert, Ghislain Trullenque, Albert Genter, Eléonore Dalmais, Jean Hérisson and Jesús Martínez-Frías
Geosciences 2021, 11(8), 349; https://doi.org/10.3390/geosciences11080349
Received: 7 June 2021 / Revised: 13 August 2021 / Accepted: 16 August 2021 / Published: 19 August 2021
The huge energy potential of Enhanced Geothermal Systems (EGS) makes them perspective sources of non-intermittent renewable energy for the future. This paper focuses on potential scenarios of EGS development in a locally and in regard to geothermal exploration, poorly known geological setting—the Variscan fold-and-thrust belt —for district heating and cooling of the Göttingen University campus. On average, the considered single EGS doublet might cover about 20% of the heat demand and 6% of the cooling demand of the campus. The levelized cost of heat (LCOH), net present value (NPV) and CO2 abatement cost were evaluated with the help of a spreadsheet-based model. As a result, the majority of scenarios of the reference case are currently not profitable. Based on the analysis, EGS heat output should be at least 11 MWth (with the brine flow rate being 40 l/s and wellhead temperature being 140 °C) for a potentially profitable project. These parameters can be a target for subsurface investigation, reservoir modeling and hydraulic stimulation at a later stage. However, sensitivity analysis presented some conditions that yield better results. Among the most influential parameters on the outcome are subsidies for research wells, proximity to the campus, temperature drawdown and drilling costs. If realized, the EGS project in Göttingen might save up to 18,100 t CO2 (34%) annually. View Full-Text
Keywords: deep geothermal energy; EGS; Variscan fold-and-thrust belt; district heating and cooling; economic indicators; CO2 abatement cost; sensitivity analysis deep geothermal energy; EGS; Variscan fold-and-thrust belt; district heating and cooling; economic indicators; CO2 abatement cost; sensitivity analysis
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MDPI and ACS Style

Romanov, D.; Leiss, B. Analysis of Enhanced Geothermal System Development Scenarios for District Heating and Cooling of the Göttingen University Campus. Geosciences 2021, 11, 349. https://doi.org/10.3390/geosciences11080349

AMA Style

Romanov D, Leiss B. Analysis of Enhanced Geothermal System Development Scenarios for District Heating and Cooling of the Göttingen University Campus. Geosciences. 2021; 11(8):349. https://doi.org/10.3390/geosciences11080349

Chicago/Turabian Style

Romanov, Dmitry, and Bernd Leiss. 2021. "Analysis of Enhanced Geothermal System Development Scenarios for District Heating and Cooling of the Göttingen University Campus" Geosciences 11, no. 8: 349. https://doi.org/10.3390/geosciences11080349

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