Date
2024-06-07Metadata
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Aufsatz
Comparison of solar district heating and renovation of buildings as measures for decarbonization of heat supply in rural areas
Abstract
In this study two different decarbonization strategies for rural heat supply are compared on the example of 180 buildings located in a small village in Germany with about 860 inhabitants and typically mainly old buildings, partly in half-timbered construction. The comparison shows that erection of a solar district heating system with solar fraction of about 67 % leads to similar heating costs as an energy efficient renovation followed by installation of decentralized air source heat pumps for most of the buildings. Both concepts aim to achieve a heat supply that is free from the local use of fossil fuels. While the solar district heating system can probably be realized within a few years and therefore achieves the full CO2 savings promptly, this would take decades for the implementation of energy efficient renovation and heat pumps due to low renovation rate. Reaching climate-neutrality for the heat supply could thus be accelerated significantly by the construction of a solar district heating system. Moreover, the two decarbonization approaches do not appear to be fundamentally mutually exclusive: subsequent steady renovation of connected buildings will either increase solar share in heat supply or enable connection of new consumers at similar solar coverage rate. However, it should be also noted that with solar district heating alone, not always the same thermal comfort as with reinforced building renovation is achieved.
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Gefördert im Rahmen des Projekts DEALCitation
@article{doi:10.17170/kobra-2024083010772,
author={Kelch, Jan and Kusyy, Oleg and Zipplies, Johannes and Orozaliev, Janybek and Vajen, Klaus},
title={Comparison of solar district heating and renovation of buildings as measures for decarbonization of heat supply in rural areas},
journal={Solar Energy Advances},
year={2024}
}
0500 Oax
0501 Text $btxt$2rdacontent
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2050 ##0##http://hdl.handle.net/123456789/16026
3000 Kelch, Jan
3010 Kusyy, Oleg
3010 Zipplies, Johannes
3010 Orozaliev, Janybek
3010 Vajen, Klaus
4000 Comparison of solar district heating and renovation of buildings as measures for decarbonization of heat supply in rural areas / Kelch, Jan
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5550 {{Kohlenstoff}}
5550 {{Emissionsverringerung}}
5550 {{Energieeffizienz}}
5550 {{Modernisierung <Bauwesen>}}
5550 {{Wärmeversorgung}}
5550 {{Ländlicher Raum}}
7136 ##0##http://hdl.handle.net/123456789/16026
<resource xsi:schemaLocation="http://datacite.org/schema/kernel-2.2 http://schema.datacite.org/meta/kernel-2.2/metadata.xsd"> 2024-09-04T15:46:14Z 2024-09-04T15:46:14Z 2024-06-07 doi:10.17170/kobra-2024083010772 http://hdl.handle.net/123456789/16026 Gefördert im Rahmen des Projekts DEAL eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ decarbonization energy efficient renovation existing buildings rural heating solar district heating 333 600 Comparison of solar district heating and renovation of buildings as measures for decarbonization of heat supply in rural areas Aufsatz In this study two different decarbonization strategies for rural heat supply are compared on the example of 180 buildings located in a small village in Germany with about 860 inhabitants and typically mainly old buildings, partly in half-timbered construction. The comparison shows that erection of a solar district heating system with solar fraction of about 67 % leads to similar heating costs as an energy efficient renovation followed by installation of decentralized air source heat pumps for most of the buildings. Both concepts aim to achieve a heat supply that is free from the local use of fossil fuels. While the solar district heating system can probably be realized within a few years and therefore achieves the full CO2 savings promptly, this would take decades for the implementation of energy efficient renovation and heat pumps due to low renovation rate. Reaching climate-neutrality for the heat supply could thus be accelerated significantly by the construction of a solar district heating system. Moreover, the two decarbonization approaches do not appear to be fundamentally mutually exclusive: subsequent steady renovation of connected buildings will either increase solar share in heat supply or enable connection of new consumers at similar solar coverage rate. However, it should be also noted that with solar district heating alone, not always the same thermal comfort as with reinforced building renovation is achieved. open access Kelch, Jan Kusyy, Oleg Zipplies, Johannes Orozaliev, Janybek Vajen, Klaus doi:10.1016/j.seja.2024.100060 Kohlenstoff Emissionsverringerung Energieeffizienz Modernisierung <Bauwesen> Wärmeversorgung Ländlicher Raum publishedVersion eissn:2667-1131 Solar Energy Advances Volume 4 false 100060 </resource>
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