The cost-optimal methodology for the energy retrofit of an ex-industrial building located in Northern Italy

Becchio, Cristina; Ferrando, Diego Giuseppe; Fregonara, Elena; Milani, Niccolò; Quercia, Camilla; Serra, Valentina

doi:10.1016/j.enbuild.2016.05.093

Cited by 42 publications

(23 citation statements)

References 13 publications

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“…Because the method described in this paper is proposed as a direct application of the European comparative approach, the following previous experiences were considered particularly relevant: Kurnitski et al (2011), Hamdy et al (2013, Ganic and Zerrin Yılmaz (2014), Pikas et al (2014), Ferrara et al (2014), Brandão de Vasconcelos et al (2016), Becchio et al (2016), Ashrafiana et al (2016), Ortiz et al (2016a, b).…”

Section: Literature Reviewmentioning

confidence: 99%

Identification of cost-optimal and NZEB refurbishment levels for representative climates and building typologies across Europe

et al. 2017

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The energy consumptions of the building stock are playing a central role in the energy policy of the European Union. While the Member States are applying the Directives in force, the European Commission is working to update the regulatory framework. Specifically, it is necessary to achieve the great unrealized potential for energy savings in existing buildings. With this aim, the nearly zero-energy building (NZEB) target was introduced, and a comparative methodology framework to calculate cost-optimal levels of minimum energy performance requirements was proposed. This study focuses on the issue of building renovation, and it presents the results obtained with the application of a cost-optimal calculation method for identifying proper retrofit measures to reach costoptimal levels and NZEB levels. The assessment takes into account an exhaustive set of passive and active renovation options and it was extended to various building types of 60s-70s (residential and non-residential) in a wide range of representative European climatic conditions. A very relevant energy-saving potential was found for all cost-optimal benchmarks, and in many cases, the obtained NZEB refurbishments have resulted interesting also from an economic point of view.

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Section: Literature Reviewmentioning

confidence: 99%

Identification of cost-optimal and NZEB refurbishment levels for representative climates and building typologies across Europe

et al. 2017

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“…Barthelems et al [12] and Becchio et al [13] describe a methodology to support designers and architects in the selection of the best scenario in cost optimal terms, both for a new project and for an energy retrofit project. 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.…”

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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“…Furthermore, it is necessary to know financial input data, such as: inflation rate, real interest rate, market interest rate, energy costs inflation rate, etc. [44][45][46]. Formally, the Global Cost method considers the initial investment and the sum of annual and disposal costs.…”

Section: Phase 2-economic Indicators With Lcc Analysismentioning

confidence: 99%

Economic-Environmental Indicators to Support Investment Decisions: A Focus on the Buildings’ End-of-Life Stage

et al. 2017

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Abstract:The aim of this paper is to propose a methodology for supporting decision making in design activities; in case of new projects or retrofitting of existing buildings. A multidisciplinary approach is adopted; involving Real Estate Appraisal and Economic Evaluation of Project and Building Environmental Design. It is proposed a methodology for selecting the preferable solutions among technological options; considering both economic and environmental aspects; in terms of global performance. Assuming the principles of Life Cycle Thinking and Circular Economy focus is posed at the end-of-life stage. Attention is paid on disposal costs and residual value as relevant items enable to orient investment decisions. This is done through an approach for quantifying environmental indicators related to Life Cycle Assessment (Standard ISO 14040:2006); and economic indicators adopting the Life Cycle Costing (Standard ISO 15686:2008). The paper proposes a conjoint "economic-environmental indicator". An application of Global Cost calculation is illustrated; including monetized environmental impacts (Embodied energy and Embodied carbon); disposal/dismantling costs and residual value. The result of the Global Cost calculation is expressed through a "synthetic economic-environmental indicator" in order to select; between two different technologies; the most viable solution for a multifunctional building glass façade project; in Northern Italy. The study demonstrates that the initial investment decisions depend on the design solutions; since the early stages; related to the whole building life cycle considering conjointly the construction-management phases and the end-of-life stage.

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The cost-optimal methodology for the energy retrofit of an ex-industrial building located in Northern Italy

Cited by 42 publications

References 13 publications

Identification of cost-optimal and NZEB refurbishment levels for representative climates and building typologies across Europe

Identification of cost-optimal and NZEB refurbishment levels for representative climates and building typologies across Europe

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

Economic-Environmental Indicators to Support Investment Decisions: A Focus on the Buildings’ End-of-Life Stage

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