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How Much Excess Heat Might Be Used in Buildings? A Spatial Analysis at the Municipal Level in Germany

Fritz, Markus ; Aydemir, Ali ; Schebek, Liselotte (2022):
How Much Excess Heat Might Be Used in Buildings? A Spatial Analysis at the Municipal Level in Germany. (Publisher's Version)
In: Energies, 15 (17), MDPI, e-ISSN 1996-1073,
DOI: 10.26083/tuprints-00022318,
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Item Type: Article
Origin: Secondary publication DeepGreen
Status: Publisher's Version
Title: How Much Excess Heat Might Be Used in Buildings? A Spatial Analysis at the Municipal Level in Germany
Language: English
Abstract:

Excess heat can make an important contribution to reduce greenhouse gas emissions in the heating and cooling sector. Due to the local character of heat, the local excess heat potential is decisive for using excess heat. However, the spatially distributed potential and the subdivision of the potential into different subsectors have not been sufficiently investigated in Germany. Here we analyse the excess heat potential in Germany according to different subsectors and spatially distributed to the municipal level. We use data of more than 115,000 records on exhaust gas and fuel input from over 11,000 industrial sites. We calculate the site-specific excess heat potential and check its plausibility using the fuel input of the respective industrial sites. Finally, we compare the excess heat potential with the residential heat demand at the municipal level. Our results show that the excess heat potential in Germany is about 36.6 TWh/a, and that in 148 municipalities, the annual excess heat potential is greater than 50% of the annual heat demand. In conclusion, there is a large potential for excess heat utilisation in Germany. In some regions, more excess heat is available throughout the year than is needed to provide space heat and hot water.

Journal or Publication Title: Energies
Volume of the journal: 15
Issue Number: 17
Place of Publication: Darmstadt
Publisher: MDPI
Collation: 17 Seiten
Uncontrolled Keywords: waste heat, excess heat, spatial analysis, industrial energy demand, heat demand, industrial subsectors
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 13 Department of Civil and Environmental Engineering Sciences > Institute IWAR > Material Flow Management and Resource Economy
Date Deposited: 14 Sep 2022 12:11
Last Modified: 23 Sep 2022 09:35
DOI: 10.26083/tuprints-00022318
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-223185
Additional Information:

This article belongs to the Section A: Sustainable Energy

SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/22318
PPN: 499600053
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