Life Cycle Cost of Building Energy Renovation Measures, Considering Future Energy Production Scenarios

A common way of calculating the life cycle cost (LCC) of building renovation measures is to approach it from the building side, where the energy system is considered by calculating the savings in the form of less bought energy. In this study a wider perspective is introduced. The LCC for three diffe...

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Main Authors: Moa Swing Gustafsson, Jonn Are Myhren, Erik Dotzauer, Marcus Gustafsson
Format: Article
Language:English
Published: MDPI AG 2019-07-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/12/14/2719
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author Moa Swing Gustafsson
Jonn Are Myhren
Erik Dotzauer
Marcus Gustafsson
author_facet Moa Swing Gustafsson
Jonn Are Myhren
Erik Dotzauer
Marcus Gustafsson
author_sort Moa Swing Gustafsson
collection DOAJ
description A common way of calculating the life cycle cost (LCC) of building renovation measures is to approach it from the building side, where the energy system is considered by calculating the savings in the form of less bought energy. In this study a wider perspective is introduced. The LCC for three different energy renovation measures, mechanical ventilation with heat recovery and two different heat pump systems, are compared to a reference case, a building connected to the district heating system. The energy system supplying the building is assumed to be 100% renewable, where eight different future scenarios are considered. The LCC is calculated as the total cost for the renovation measures and the energy systems. All renovation measures result in a lower district heating demand, at the expense of an increased electricity demand. All renovation measures also result in an increased LCC, compared to the reference building. When aiming for a transformation towards a 100% renewable system in the future, this study shows the importance of having a system perspective, and also taking possible future production scenarios into consideration when evaluating building renovation measures that are carried out today, but will last for several years, in which the energy production system, hopefully, will change.
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spelling doaj.art-104440e4f83f4fb0a2c469722c286f852022-12-22T04:20:07ZengMDPI AGEnergies1996-10732019-07-011214271910.3390/en12142719en12142719Life Cycle Cost of Building Energy Renovation Measures, Considering Future Energy Production ScenariosMoa Swing Gustafsson0Jonn Are Myhren1Erik Dotzauer2Marcus Gustafsson3Energy Technology, Dalarna University, 791 88 Falun, SwedenEnergy Technology, Dalarna University, 791 88 Falun, SwedenBusiness, Society and Engineering, Mälardalen University, 721 23 Västerås, SwedenEnvironmental Technology and Management, Linköping University, 581 83 Linköping, SwedenA common way of calculating the life cycle cost (LCC) of building renovation measures is to approach it from the building side, where the energy system is considered by calculating the savings in the form of less bought energy. In this study a wider perspective is introduced. The LCC for three different energy renovation measures, mechanical ventilation with heat recovery and two different heat pump systems, are compared to a reference case, a building connected to the district heating system. The energy system supplying the building is assumed to be 100% renewable, where eight different future scenarios are considered. The LCC is calculated as the total cost for the renovation measures and the energy systems. All renovation measures result in a lower district heating demand, at the expense of an increased electricity demand. All renovation measures also result in an increased LCC, compared to the reference building. When aiming for a transformation towards a 100% renewable system in the future, this study shows the importance of having a system perspective, and also taking possible future production scenarios into consideration when evaluating building renovation measures that are carried out today, but will last for several years, in which the energy production system, hopefully, will change.https://www.mdpi.com/1996-1073/12/14/2719life cycle costenergy systemdistrict heatingenergy renovation measuresheat pumpmechanical ventilation with heat recoverycombined heat and powerwind power
spellingShingle Moa Swing Gustafsson
Jonn Are Myhren
Erik Dotzauer
Marcus Gustafsson
Life Cycle Cost of Building Energy Renovation Measures, Considering Future Energy Production Scenarios
Energies
life cycle cost
energy system
district heating
energy renovation measures
heat pump
mechanical ventilation with heat recovery
combined heat and power
wind power
title Life Cycle Cost of Building Energy Renovation Measures, Considering Future Energy Production Scenarios
title_full Life Cycle Cost of Building Energy Renovation Measures, Considering Future Energy Production Scenarios
title_fullStr Life Cycle Cost of Building Energy Renovation Measures, Considering Future Energy Production Scenarios
title_full_unstemmed Life Cycle Cost of Building Energy Renovation Measures, Considering Future Energy Production Scenarios
title_short Life Cycle Cost of Building Energy Renovation Measures, Considering Future Energy Production Scenarios
title_sort life cycle cost of building energy renovation measures considering future energy production scenarios
topic life cycle cost
energy system
district heating
energy renovation measures
heat pump
mechanical ventilation with heat recovery
combined heat and power
wind power
url https://www.mdpi.com/1996-1073/12/14/2719
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