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Energetic performance of a smart neighborhood of existing multifamily buildings with heat pumps, PV and CHP focusing on energy balance and CO2 emissions

  • A smart energy concept was designed and implemented for a cluster of 5 existing multi-family houses, which combines heat pumps, photovoltaic (PV) modules and combined heat and power units (CHP) to achieve energy- and cost-efficient operation. Measurement results of the first year of operation show that the local power generation by PV modules and CHP unit has a positive effect on the electricalA smart energy concept was designed and implemented for a cluster of 5 existing multi-family houses, which combines heat pumps, photovoltaic (PV) modules and combined heat and power units (CHP) to achieve energy- and cost-efficient operation. Measurement results of the first year of operation show that the local power generation by PV modules and CHP unit has a positive effect on the electrical self-sufficiency by reducing electricity import from the grid. In winter, when the CHP unit operates continuously for long periods, the entire electricity for the heat pump and 91 % of the total electricity demand of the neighborhood are supplied locally. In summer, only 53 % is generated within the neighborhood. The use of a specifically developed energy management system EMS is intended to further increase this share. CO2 emissions for heating and electricity of the neighborhood are evaluated and amount to 18.4 kg/(m2a). Compared to the previous energy system consisting of gas boilers (29.1 kg/(m2a)), savings of 37 % are achieved with electricity consumption from the grid being reduced by 65 %. In the second construction stage, an additional heat pump, CHP unit and PV modules will be added. The measurement results indicate that the final district energy system is likely to achieve the ambitious CO2 reduction goal of -50% and further increase the self-sufficiency of the district.show moreshow less

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Metadaten
Document Type:Conference Proceeding
Conference Type:Konferenzartikel
Zitierlink: https://opus.hs-offenburg.de/8313
Bibliografische Angaben
Title (English):Energetic performance of a smart neighborhood of existing multifamily buildings with heat pumps, PV and CHP focusing on energy balance and CO2 emissions
Conference:CISBAT International Conference (13/09/2023 - 15/09/2023 : Lausanne, Switzerland)
Author:Michael Kropp, Jakob Metz, Manuel LämmleStaff MemberORCiDGND
Year of Publication:2023
Creating Corporation:Institut für Nachhaltige Technische Systeme (INATECH)
Contributing Corporation:Fraunhofer-Institut für Solare Energiesysteme (ISE)
Publisher:IOP Publishing
First Page:1
Last Page:6
Article Number:032001
Parent Title (English):Journal of Physics: Conference Series
Volume:2600
Issue:3
ISSN:1742-6588 (Print)
ISSN:1742-6596 (Online)
DOI:https://doi.org/10.1088/1742-6596/2600/3/032001
Language:English
Inhaltliche Informationen
Institutes:Forschung / INES - Institut für nachhaltige Energiesysteme
Fakultät Maschinenbau und Verfahrenstechnik (M+V)
Institutes:Bibliografie
DDC classes:600 Technik, Medizin, angewandte Wissenschaften
600 Technik, Medizin, angewandte Wissenschaften / 690 Hausbau, Bauhandwerk / 697 Heizungs-, Lüftungs-, Klimatechnik
GND Keyword:Wärmepumpe
Tag:Heat pumps
Formale Angaben
Relevance:Konferenzbeitrag: h5-Index < 30
Open Access: Open Access 
 Gold 
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International