Life cycle cost analysis of a multi-storey residential Net Zero Energy Building in Denmark

Marszal, Anna Joanna; Heiselberg, Per

doi:10.1016/j.energy.2011.07.010

Cited by 211 publications

(109 citation statements)

References 14 publications

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“…Zacà et al [14] develop a methodology to assess energy and cost effectiveness in new buildings located in the Mediterranean area and show how economical high efficient buildings can be obtained at a design stage for a warm climate. When the target is nZEB buildings, it is important to evaluate how much to invest in the envelope performance and in the renewable energy technologies [15]. One of the focus of this paper is to understand if lower consumption can compensate higher investment costs and which is the role of incentives in the cost optimal solution.…”

Section: Relevant Studiesmentioning

confidence: 99%

Refurbishment design through cost-optimal methodology: The case study of a social housing in the northern Italy

Guazzi¹,

Bellazzi²,

Meroni³

et al. 2017

IJHT

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The energy retrofit of social housing buildings in Italy is a big challenge, for their poor energy performance and their large diffusion, but it is affected by several problems mainly due to lack of funds. Therefore, a solid methodological base to achieve optimal energy levels, considering the best balance with the costs, can be useful for a cheaper approach to their energy performance improvement. The cost optimal methodology indicated by the European Directive 2010/31/UE is here applied on a social housing building, located in the northern Italy, in order to demonstrate how it can be used as a supporting decision tool for refurbishment interventions on existing residential buildings, when limited investments from Public Authorities or privates are involved. A series of energy efficiency measures are defined in order to identify different improvement scenarios, related both to the envelope and to the technical systems. After a first step calculating the primary energy consumption and the Global Cost in accordance with the EN 15459:2007, the best costs/benefits ratio is evaluated among all the hypothesized scenarios. The results of the research are expected to be a stimulus for the definition of specific refurbishment plans for the energy efficiency increase of social housing.

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Section: Relevant Studiesmentioning

confidence: 99%

Refurbishment design through cost-optimal methodology: The case study of a social housing in the northern Italy

Guazzi¹,

Bellazzi²,

Meroni³

et al. 2017

IJHT

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“…(Jeong et al 2017) have developed a prediction model for calculating cost saving potentials by using LCC analysis. Marszal & Heiselberg, 2011 have compared the total life cycle cost and net savings of a Net Zero Energy Building by implementing different measures and using different district heating systems. Bonakdar et al, (2014) have done cost optimal analysis of fabric renovation in a Swedish multi-story residential building.…”

Section: Lccmentioning

confidence: 99%

A systematic approach for major renovation of residential buildings

Liu

2017

Linköping Studies in Science and Technology. Dissertations

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In Sweden, buildings are responsible for about 40 % of total energy use and about 10 % of total CO 2 emissions. Today more than 60 % of existing Swedish residential buildings are over 40 years old and are in need of major renovation. In addition, 15 % of all multi-family buildings and 27 % of all single-family houses were built before 1945. The increased energy use and threat from CO 2 emissions of the building sector create a need for energy efficiency. The important role that renovation of residential buildings will play in reducing the total energy used by the Swedish building sector as well as in reducing primary energy use and CO 2 emissions on both the national and global levels has been the impetus for the studies included in this thesis.The aim of the current research is to develop a methodology from a system perspective which can be used to analyze the energy use, optimal life cycle cost (LCC), energy efficiency measure (EEM) package, indoor environment, CO 2 emissions, and primary energy use of a building or a community during major renovation. The developed methodology accomplished at three different levels, i.e. building level, cluster level and district level. The methodology considers both energy efficiency and economic viability during building renovation and will also play an important role in overall urban planning. The studied buildings include both nonlisted and listed residential buildings and the tools used include building energy simulation (BES), survey, technical measurements, LCC optimization and building categorization.The results show that the combination of BES, technical measurements and surveys provides a holistic approach for evaluation of energy use and indoor environment of the studied residential buildings. The results from the current study also show that the 2020 energy target, i.e., reduction of energy use by 20 %, for the building sector can be achieved by all the studied building types and that the total LCC of these buildings are below the cost-optimal point. In comparison, the 2050 energy target, i.e., reduction of energy use by 50 %, for the building sector may be achieved by the non-listed buildings, but when the constraints relevant to listed buildings are added the cost-optimality changes as some EEMs in direct conflict with the building's heritage value may not be implemented.The investigation of primary energy use and CO 2 emissions by the residential buildings show that the higher the energy saving, the lower the primary energy use becomes, and vice versa. With the same energy saving, the heating system with higher primary energy factor results in higher primary energy use. From a CO 2 emissions point of view, EEM packages proposed to help buildings connected to a CHP based district heating system, to reduce the energy use or LCC are not consistently effective. Since these EEM packages will reduce district heating demand, the electricity produced in the CHP plant will also decrease. When the biomass is considered a limited resource, measures such as investm...

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“…Buildings are a durable value and consequences have long-term effect in any building decisions, building investors are only concern about the investment cost when they make decisions about building design, construction materials and HVAC systems [8].…”

Section: Life Cycle Cost Analysismentioning

confidence: 99%

Life-Cycle Energy Analysis of a Modular/Off-Site Building School

Paya-Marin¹,

Lim²,

Sengupta³

2013

AJCEA

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This paper is concerned with assessing the building's the energy efficiency and qualities of a modular design for the education industry, in order assess the long economic benefits. The research includes a life-cycle energy and cost analysis of the school building design, predicting the impact on the operational cost of the building as a result of the addition of photovoltaic panels. The paper also includes a comparative study between the ECO Modular Solutions building, and a current standard prefabricated school building, quantifying the savings in CO 2 emissions and savings in cost.

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Life cycle cost analysis of a multi-storey residential Net Zero Energy Building in Denmark

Cited by 211 publications

References 14 publications

Refurbishment design through cost-optimal methodology: The case study of a social housing in the northern Italy

Refurbishment design through cost-optimal methodology: The case study of a social housing in the northern Italy

A systematic approach for major renovation of residential buildings

Life-Cycle Energy Analysis of a Modular/Off-Site Building School

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