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An analysis on how proposed requirements for near zero energy buildings manages PV electricity in combination with two different types of heat pumps and its policy implications – A Swedish example
Mälardalen University, School of Business, Society and Engineering, Future Energy Center. (Future Energy)ORCID iD: 0000-0002-8287-8735
Mälardalen University, School of Business, Society and Engineering, Future Energy Center. (Future Energy)ORCID iD: 0000-0002-8604-9299
2017 (English)In: Energy Policy, ISSN 0301-4215, E-ISSN 1873-6777, Vol. 101, 10-19 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents an analysis on how exhaust air- and ground source- heat pumps in combination with PV-systems affects the specific energy demand of buildings with the proposed Swedish near zero energy building definition and its policy implications. It also presents a method on how to estimate the contribution from the photovoltaic-system on the reduction of the specific energy demand of the building.

A challenge with the proposed near zero energy building definition is that it is not clearly defined how it manages photovoltaic electricity as a mean to reduce the specific energy demand of buildings.

The results suggest that the building with the ground source heat pump and heat recovery ventilation has the lowest specific energy demand. The proposed definition will give an advantage to system combinations comprised of heat pumps and PV-systems and this will lead to the possibility to build less insulated buildings with higher heat losses than for a building with a non-electrical heating system. A higher share of heat pumps can lead to lower electricity production in Sweden because of lost heating loads in district heating systems and a higher electricity demand.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 101, 10-19 p.
Keyword [en]
Heat pump; Photovoltaics; Near zero energy building; Self-consumption
National Category
Energy Engineering
Research subject
Energy- and Environmental Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-33730DOI: 10.1016/j.enpol.2016.11.025ISI: 000392768800002Scopus ID: 2-s2.0-84997525309OAI: oai:DiVA.org:mdh-33730DiVA: diva2:1048459
Available from: 2016-11-21 Created: 2016-11-21 Last updated: 2017-02-23Bibliographically approved

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Thygesen, RichardKarlsson, Björn
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf