Feasibility of heat pumps supplying district heating systems: case study for Austria and Denmark

Wiebke Meesenburg, Roman Geyer, Olatz Terreros, Henrik Pieper, Torben Ommen, Brian Elmegaard

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Abstract

The frame conditions for large-scale heat pumps (HPs) in district heating (DH) systems were studied for Denmark and Austria. While large-scale HPs are becoming more and more often implemented as DH supply units in Denmark, examples from Austria are rare. An economic analysis was conducted for both countries, comparing DH solutions based on either large-scale heat pumps or wood-fired heat only boilers to individual HPs. The results showed that large-scale HPs were beneficial compared to individual units down to linear heat demand densities of 0.85 MWh/m/a for Denmark and 0.97 MWh/m/a for Austria. The levelized cost of energy of central HPs could compete with wood-fired boilers especially for low DH temperatures (60 °C /30 °C). From a socioeconomic perspective HPs were beneficial compared to woodfired boilers. In Austria the private economic feasibility of wood-fired boilers benefits from subsidies, which showed to decrease the competitiveness of large-scale HPs.
Original languageEnglish
Publication date2018
Number of pages8
Publication statusPublished - 2018
EventISEC 2018, International Sustainable Energy Converence - Graz, Austria
Duration: 3 Oct 20185 Oct 2018
http://www.aee-intec-events.org/isec2018/index.php/en/call-for-papers-english/topics-call-for-abstracts

Conference

ConferenceISEC 2018, International Sustainable Energy Converence
CountryAustria
CityGraz
Period03/10/201805/10/2018
Internet address

Cite this

Meesenburg, W., Geyer, R., Terreros, O., Pieper, H., Ommen, T., & Elmegaard, B. (2018). Feasibility of heat pumps supplying district heating systems: case study for Austria and Denmark. Paper presented at ISEC 2018, International Sustainable Energy Converence, Graz, Austria.