Renovation Results of Finnish Single-Family Renovation Subsidies : Oil Boiler Replacement with Heat Pumps

Paula Sankelo; Kaiser Ahmed; Alo Mikola; Jarek Kurnitski

doi:10.3390/en15207620

Renovation Results of Finnish Single-Family Renovation Subsidies : Oil Boiler Replacement with Heat Pumps

Paula Sankelo, Kaiser Ahmed, Alo Mikola^*, Jarek Kurnitski

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

10 Citations (Scopus)

166 Downloads (Pure)

Abstract

Finland has approximately 150,000 oil-heated private homes. In 2020, the Finnish government launched subsidies for private homeowner energy renovations. In this study, we examine the impact of two new energy renovation subsidies, the ELY grant and the ARA grant, from an energy efficiency point of view. Data from these subsidies reveal that a typical energy renovation case is a building from the 1970s where the oil boiler is replaced with an air-to-water heat pump. With additional data from the Finnish Energy certificate registry, a reference 1970s house is constructed and modelled in the building simulation programme, IDA ICE 4.8. Combinations of several renovation measures are simulated: air-to-water heat pump, ground-source heat pump, ventilation heat recovery and improved insulation. We found that resorting mainly to air-to-water heat pumps is not the most energy-effective solution. Ground-source heat pumps deliver a more significant reduction in delivered energy, especially with additional measures on insulation and heat recovery. Ground-source heat pumps also demand slightly less power than air-to-water heat pumps. Onsite solar PV generation helps supplement part of the power needed for heat pump solutions. Subsidy policies should emphasize deep renovation, ventilation heat recovery and onsite electricity generation.

Original language	English
Article number	7620
Number of pages	18
Journal	Energies
Volume	15
Issue number	20
DOIs	https://doi.org/10.3390/en15207620
Publication status	Published - Oct 2022
MoE publication type	A1 Journal article-refereed

Funding

This research was supported by the Academy of Finland, a grant for DECARBON-HOME 335253, by the European Commission through the H2020 project Finest Twins (grant No. 856602) and by the Estonian Centre of Excellence in Zero Energy and Resource-Efficient Smart Buildings and Districts, ZEBE, grant 2014-2020.4.01.15-0016, funded by the European Regional Development Fund, Fortum and Neste Foundation and the K.V. Lindholms Stiftelse Foundation.

Keywords

air-source heat pump
ground-source heat pump
oil boiler replacement
PV panels
renovation subsidies
single-family buildings

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.3390/en15207620Licence: CC BY

energies-15-07620-v2Final published version, 3.42 MBLicence: CC BY

Cite this

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title = "Renovation Results of Finnish Single-Family Renovation Subsidies : Oil Boiler Replacement with Heat Pumps",

abstract = "Finland has approximately 150,000 oil-heated private homes. In 2020, the Finnish government launched subsidies for private homeowner energy renovations. In this study, we examine the impact of two new energy renovation subsidies, the ELY grant and the ARA grant, from an energy efficiency point of view. Data from these subsidies reveal that a typical energy renovation case is a building from the 1970s where the oil boiler is replaced with an air-to-water heat pump. With additional data from the Finnish Energy certificate registry, a reference 1970s house is constructed and modelled in the building simulation programme, IDA ICE 4.8. Combinations of several renovation measures are simulated: air-to-water heat pump, ground-source heat pump, ventilation heat recovery and improved insulation. We found that resorting mainly to air-to-water heat pumps is not the most energy-effective solution. Ground-source heat pumps deliver a more significant reduction in delivered energy, especially with additional measures on insulation and heat recovery. Ground-source heat pumps also demand slightly less power than air-to-water heat pumps. Onsite solar PV generation helps supplement part of the power needed for heat pump solutions. Subsidy policies should emphasize deep renovation, ventilation heat recovery and onsite electricity generation.",

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author = "Paula Sankelo and Kaiser Ahmed and Alo Mikola and Jarek Kurnitski",

note = "| openaire: EC/H2020/856602/EU//FINEST TWINS Funding Information: This research was supported by the Academy of Finland, a grant for DECARBON-HOME 335253, by the European Commission through the H2020 project Finest Twins (grant No. 856602) and by the Estonian Centre of Excellence in Zero Energy and Resource-Efficient Smart Buildings and Districts, ZEBE, grant 2014-2020.4.01.15-0016, funded by the European Regional Development Fund, Fortum and Neste Foundation and the K.V. Lindholms Stiftelse Foundation. Publisher Copyright: {\textcopyright} 2022 by the authors.",

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AU - Ahmed, Kaiser

AU - Mikola, Alo

AU - Kurnitski, Jarek

N1 - | openaire: EC/H2020/856602/EU//FINEST TWINS Funding Information: This research was supported by the Academy of Finland, a grant for DECARBON-HOME 335253, by the European Commission through the H2020 project Finest Twins (grant No. 856602) and by the Estonian Centre of Excellence in Zero Energy and Resource-Efficient Smart Buildings and Districts, ZEBE, grant 2014-2020.4.01.15-0016, funded by the European Regional Development Fund, Fortum and Neste Foundation and the K.V. Lindholms Stiftelse Foundation. Publisher Copyright: © 2022 by the authors.

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N2 - Finland has approximately 150,000 oil-heated private homes. In 2020, the Finnish government launched subsidies for private homeowner energy renovations. In this study, we examine the impact of two new energy renovation subsidies, the ELY grant and the ARA grant, from an energy efficiency point of view. Data from these subsidies reveal that a typical energy renovation case is a building from the 1970s where the oil boiler is replaced with an air-to-water heat pump. With additional data from the Finnish Energy certificate registry, a reference 1970s house is constructed and modelled in the building simulation programme, IDA ICE 4.8. Combinations of several renovation measures are simulated: air-to-water heat pump, ground-source heat pump, ventilation heat recovery and improved insulation. We found that resorting mainly to air-to-water heat pumps is not the most energy-effective solution. Ground-source heat pumps deliver a more significant reduction in delivered energy, especially with additional measures on insulation and heat recovery. Ground-source heat pumps also demand slightly less power than air-to-water heat pumps. Onsite solar PV generation helps supplement part of the power needed for heat pump solutions. Subsidy policies should emphasize deep renovation, ventilation heat recovery and onsite electricity generation.

AB - Finland has approximately 150,000 oil-heated private homes. In 2020, the Finnish government launched subsidies for private homeowner energy renovations. In this study, we examine the impact of two new energy renovation subsidies, the ELY grant and the ARA grant, from an energy efficiency point of view. Data from these subsidies reveal that a typical energy renovation case is a building from the 1970s where the oil boiler is replaced with an air-to-water heat pump. With additional data from the Finnish Energy certificate registry, a reference 1970s house is constructed and modelled in the building simulation programme, IDA ICE 4.8. Combinations of several renovation measures are simulated: air-to-water heat pump, ground-source heat pump, ventilation heat recovery and improved insulation. We found that resorting mainly to air-to-water heat pumps is not the most energy-effective solution. Ground-source heat pumps deliver a more significant reduction in delivered energy, especially with additional measures on insulation and heat recovery. Ground-source heat pumps also demand slightly less power than air-to-water heat pumps. Onsite solar PV generation helps supplement part of the power needed for heat pump solutions. Subsidy policies should emphasize deep renovation, ventilation heat recovery and onsite electricity generation.

KW - air-source heat pump

KW - ground-source heat pump

KW - oil boiler replacement

KW - PV panels

KW - renovation subsidies

KW - single-family buildings

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DO - 10.3390/en15207620

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AN - SCOPUS:85140728553

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VL - 15

JO - Energies

JF - Energies

IS - 20

M1 - 7620

ER -

Renovation Results of Finnish Single-Family Renovation Subsidies : Oil Boiler Replacement with Heat Pumps

Abstract

Funding

Keywords

UN SDGs

Access to Document

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-: FINEST TWINS GA856602Nieminen

Cite this

Renovation Results of Finnish Single-Family Renovation Subsidies : Oil Boiler Replacement with Heat Pumps

Abstract

Funding

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Projects

-: FINEST TWINS GA856602Nieminen

Cite this