Sensitivity analysis as support for reliable life cycle cost evaluation applied to eleven nearly zero-energy buildings in Europe

Pernetti, Roberta; Garzia, Federico; Oberegger, Ulrich Filippi

doi:10.1016/j.scs.2021.103139

Cited by 21 publications

(5 citation statements)

References 49 publications

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“…The methodology for an LCC evaluation of green building projects builds on commonly used figures on the LCC of buildings (Li et al , 2020; Islam et al , 2015; Biolek et al , 2019). The end-life costs are estimated at 5% of the total LCC (Vázquez-López et al , 2020), as there is no standard approach on how to treat end-of-life costs in the recent literature (Pernetti et al , 2021; Moncaster and Song, 2012). The significant costs, including the initial investment, water consumption and energy consumption, are accounted for [equation (5)]: …”

Section: Methodology Data and Limitationsmentioning

confidence: 99%

Cost efficiency of municipal green bonds’ measures: a marginal abatement cost curves approach

Piseddu,

Vanhuyse

2023

SEF

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PurposeWith more cities aiming to achieve climate neutrality, identifying the funding to support these plans is essential. The purpose of this paper is to exploit the present of a structured green bonds framework in Sweden to investigate the typology of abatement projects Swedish municipalities invested in and understand their effectiveness.Design/methodology/approachMarginal abatement cost curves of the green bond measures are constructed by using the financial and abatement data provided by municipalities on an annual basis.FindingsThe results highlight the economic competitiveness of clean energy production, measured in abatement potential per unit of currency, even when compared to other emerging technologies that have attracted the interest of policymakers. A comparison with previous studies on the cost efficiency of carbon capture storage reveals that clean energy projects, especially wind energy production, can contribute to the reduction of emissions in a more efficient way. The Swedish carbon tax is a good incentive tool for investments in clean energy projects.Originality/valueThe improvement concerning previous applications is twofold: the authors expand the financial considerations to include the whole life-cycle costs, and the authors consider all the greenhouse gases. This research constitutes a prime in using financial and environmental data produced by local governments to assess the effectiveness of their environmental measures.

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Section: Methodology Data and Limitationsmentioning

confidence: 99%

Cost efficiency of municipal green bonds’ measures: a marginal abatement cost curves approach

Piseddu,

Vanhuyse

2023

SEF

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“…13 To remain consistent with the end of life treatment without recycling and reuse of materials, the residual value of a house is assumed to be of 0€ after 60 years. HVAC system costs are also excluded from computations (see: Table 4) because of their high volatility in prices and performances (Pernetti et al, 2021) and lack of available data. Finally, prices include work of assembly and VAT is excluded from all cost's computations.…”

Section: Life Cycle Cost Analysismentioning

confidence: 99%

The Cost of Sustainability in the Construction Sector – the Case of Family Houses in Belgium

VAN POTTELSBERGHE,

Douhard

2024

Preprint

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Section: Introductionmentioning

confidence: 99%

“…Sensitivity analysis is used to identify key input parameters that significantly impact model outcomes [21][22][23][24][25][26][27][28][29]. It has been applied to factors like occupancy data [21][22][23]25,28,29], building geometry [23][24][25]28], construction details [21,22,[24][25][26][27], and heating and ventilation [21,[24][25][26]29]. This method assists in prioritising these parameters, allowing engineers and decision-makers to focus on critical aspects that influence the overall performance of a building.…”

Section: Introductionmentioning

confidence: 99%

A Heat Loss Sensitivity Index to Inform Housing Retrofit Policy in the UK

Tsang,

Parker,

Glew

2024

Buildings

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A substantial number of dwellings in the UK have poor building fabric, leading to higher carbon emissions, fuel expenses, and the risk of cold homes. To tackle these challenges, domestic energy efficiency policies are being implemented. One effective approach is the use of energy models, which enable sensitivity analysis to provide valuable insights for policymakers. This study employed dynamic thermal simulation models for 32 housing archetypes representative of solid-walled homes in the UK to calculate the heat loss and the sensitivity coefficient per building fabric feature, after which a metric Heat Loss Sensitivity (HLS) index was established to guide the selection of retrofit features for each archetype. The building fabric features’ inputs were then adjusted to establish both lower and upper bounds, simulating low and high performance levels, to predict the how space heating energy demand varies. The analysis was extended by replicating the process with various scenarios considering climates, window-to-wall ratios, and overshadowing. The findings highlight the external wall as the primary consideration in retrofitting due to its high HLS index, even at high window-to-wall ratios. It was also established that dwelling type is important in retrofit decision-making, with floor and loft retrofits having a high HLS index in bungalows. Furthermore, the analysis underlines the necessity for Standard Assessment Procedure assessors to evaluate loft U-value and air permeability rates prior to implementing retrofit measures, given the significance of these factors in the lower and upper bounds analysis. Researchers globally can replicate the HLS index approach, facilitating the implementation of housing retrofit policies worldwide.

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Sensitivity analysis as support for reliable life cycle cost evaluation applied to eleven nearly zero-energy buildings in Europe

Cited by 21 publications

References 49 publications

Cost efficiency of municipal green bonds’ measures: a marginal abatement cost curves approach

Cost efficiency of municipal green bonds’ measures: a marginal abatement cost curves approach

The Cost of Sustainability in the Construction Sector – the Case of Family Houses in Belgium

A Heat Loss Sensitivity Index to Inform Housing Retrofit Policy in the UK

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