Energy, Environmental and Economic Analysis of Air-to-Air Heat Pumps as an Alternative to Heating Electrification in Europe

Heat pumps (HP) are an efficient alternative to non-electric heating systems (NEHS), being a cost-effective mean to support European building sector decarbonization. The paper studies HP and NEHS performance in residential buildings, under different climate conditions and energy tariffs, in six diff...

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Main Authors: Olaia Eguiarte, Antonio Garrido-Marijuán, Pablo de Agustín-Camacho, Luis del Portillo, Ander Romero-Amorrortu
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/13/15/3939
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author Olaia Eguiarte
Antonio Garrido-Marijuán
Pablo de Agustín-Camacho
Luis del Portillo
Ander Romero-Amorrortu
author_facet Olaia Eguiarte
Antonio Garrido-Marijuán
Pablo de Agustín-Camacho
Luis del Portillo
Ander Romero-Amorrortu
author_sort Olaia Eguiarte
collection DOAJ
description Heat pumps (HP) are an efficient alternative to non-electric heating systems (NEHS), being a cost-effective mean to support European building sector decarbonization. The paper studies HP and NEHS performance in residential buildings, under different climate conditions and energy tariffs, in six different European countries. Furthermore, a primary energy and environmental analysis is performed to evaluate if the use of HPs is more convenient than NEHS, based on different factors of the electric mix in each country. A specific HP model is developed considering the main physical phenomena occurring along its cycle. Open data from building, climatic and economic sources are used to feed the analysis. Ad hoc primary energy factors and greenhouse gas (GHG) emission coefficients are calculated for the selected countries. The costs and the environmental impact for both heating systems are then compared. The outcomes of the study suggest that, in highly fossil fuels dependent electricity mixes, the use of NEHS represents a more efficient decarbonization approach than HP, in spite of its higher efficiency. Additionally, the actual high price of the electric kWh hampers the use of HP in certain cases.
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spelling doaj.art-b1dfa881eba3420580e2760fa23561de2023-11-20T08:45:47ZengMDPI AGEnergies1996-10732020-08-011315393910.3390/en13153939Energy, Environmental and Economic Analysis of Air-to-Air Heat Pumps as an Alternative to Heating Electrification in EuropeOlaia Eguiarte0Antonio Garrido-Marijuán1Pablo de Agustín-Camacho2Luis del Portillo3Ander Romero-Amorrortu4TECNALIA, Basque Research and Technology Alliance (BRTA), 48160 Derio, SpainTECNALIA, Basque Research and Technology Alliance (BRTA), 48160 Derio, SpainTECNALIA, Basque Research and Technology Alliance (BRTA), 48160 Derio, SpainENEDI Research Group, Thermal Engineering Department, University of the Basque Country (UPV/EHU), 48013 Bizkaia, SpainTECNALIA, Basque Research and Technology Alliance (BRTA), 48160 Derio, SpainHeat pumps (HP) are an efficient alternative to non-electric heating systems (NEHS), being a cost-effective mean to support European building sector decarbonization. The paper studies HP and NEHS performance in residential buildings, under different climate conditions and energy tariffs, in six different European countries. Furthermore, a primary energy and environmental analysis is performed to evaluate if the use of HPs is more convenient than NEHS, based on different factors of the electric mix in each country. A specific HP model is developed considering the main physical phenomena occurring along its cycle. Open data from building, climatic and economic sources are used to feed the analysis. Ad hoc primary energy factors and greenhouse gas (GHG) emission coefficients are calculated for the selected countries. The costs and the environmental impact for both heating systems are then compared. The outcomes of the study suggest that, in highly fossil fuels dependent electricity mixes, the use of NEHS represents a more efficient decarbonization approach than HP, in spite of its higher efficiency. Additionally, the actual high price of the electric kWh hampers the use of HP in certain cases.https://www.mdpi.com/1996-1073/13/15/3939heat pumpsprimary energyelectric mixurban-scale decarbonizationdynamic energy tariffsheating demand management
spellingShingle Olaia Eguiarte
Antonio Garrido-Marijuán
Pablo de Agustín-Camacho
Luis del Portillo
Ander Romero-Amorrortu
Energy, Environmental and Economic Analysis of Air-to-Air Heat Pumps as an Alternative to Heating Electrification in Europe
Energies
heat pumps
primary energy
electric mix
urban-scale decarbonization
dynamic energy tariffs
heating demand management
title Energy, Environmental and Economic Analysis of Air-to-Air Heat Pumps as an Alternative to Heating Electrification in Europe
title_full Energy, Environmental and Economic Analysis of Air-to-Air Heat Pumps as an Alternative to Heating Electrification in Europe
title_fullStr Energy, Environmental and Economic Analysis of Air-to-Air Heat Pumps as an Alternative to Heating Electrification in Europe
title_full_unstemmed Energy, Environmental and Economic Analysis of Air-to-Air Heat Pumps as an Alternative to Heating Electrification in Europe
title_short Energy, Environmental and Economic Analysis of Air-to-Air Heat Pumps as an Alternative to Heating Electrification in Europe
title_sort energy environmental and economic analysis of air to air heat pumps as an alternative to heating electrification in europe
topic heat pumps
primary energy
electric mix
urban-scale decarbonization
dynamic energy tariffs
heating demand management
url https://www.mdpi.com/1996-1073/13/15/3939
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