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Life Cycle Cost of Heat Supply to Areas with Detached Houses: A Comparison of District Heating and Heat Pumps from an Energy System Perspective
Dalarna University, School of Technology and Business Studies, Energy Technology. Mälardalens högskola, Akademin för ekonomi, samhälle och teknik.ORCID iD: 0000-0002-3630-663X
Dalarna University, School of Technology and Business Studies, Construction.ORCID iD: 0000-0002-9943-9878
Mälardalens högskola, Akademin för ekonomi, samhälle och teknik.
2018 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 11, no 12, article id 3266Article in journal (Refereed) Published
Abstract [en]

There are different views on whether district heating (DH) or heat pumps (HPs) is or are the best heating solution in order to reach a 100% renewable energy system. This article investigates the economic perspective, by calculating and comparing the energy system life cycle cost (LCC) for the two solutions in areas with detached houses. The LCC is calculated using Monte Carlo simulation, where all input data is varied according to predefined probability distributions. In addition to the parameter variations, 16 different scenarios are evaluated regarding the main fuel for the DH, the percentage of combined heat and power (CHP), the DH temperature level, and the type of electrical backup power. Although HP is the case with the lowest LCC for most of the scenarios, there are alternatives for each scenario in which either HP or DH has the lowest LCC. In alternative scenarios with additional electricity transmission costs, and a marginal cost perspective regarding the CHP investment, DH has the lowest LCC overall, taking into account all scenarios. The study concludes that the decision based on energy system economy on whether DH should expand into areas with detached houses must take local conditions into consideration.

Place, publisher, year, edition, pages
MDPI, 2018. Vol. 11, no 12, article id 3266
National Category
Energy Engineering
Research subject
Energy, Forests and Built Environments
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URN: urn:nbn:se:du-28927DOI: 10.3390/en11123266OAI: oai:DiVA.org:du-28927DiVA, id: diva2:1265657
Available from: 2018-11-26 Created: 2018-11-26 Last updated: 2018-11-27Bibliographically approved

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Swing Gustafsson, MoaMyhren, Jonn Are

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