Cost optimality assessment of a single family house: Building and technical systems solutions for the nZEB target

Becchio, Cristina; Dabbene, Paolo; Fabrizio, Enrico; Monetti, Valentina; Filippi, Marco

doi:10.1016/j.enbuild.2014.12.050

Cited by 88 publications

(35 citation statements)

References 28 publications

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“…This is, however, contradicted by another study where a bio-boiler solution is most cost optimal [13]. In [14], one of the conclusions was that a large PV system is needed to achieve the NZE building requirements with and without a heat pump.…”

Section: Earlier Researchcontrasting

confidence: 41%

An Analysis of Different Solar-Assisted Heating Systems and Their Effect on the Energy Performance of Multifamily Buildings—A Swedish Case

Thygesen

2017

Energies

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Today, the household sector in the European Union and in Sweden accounts for approximately 25% and 22% of the final energy demand, respectively, and the sector will continue to grow in the next decades. To limit the impact on the energy demand of buildings, the European Union has introduced the Energy Performance of Building Directive. In Sweden, a proposal for building regulations adapted to the Energy Performance of Buildings Directive has been released, but no decision on implementation of it has been made. In this article, a real building is simulated to evaluate how different combinations of heating and decentralized energy generation systems are affecting the specific energy demand of the building. Also, an analysis on how the Swedish incentive schemes affect the choice of decentralized energy generation systems is conducted. Furthermore, it is investigated if it is necessary to adopt the incentive schemes to steer towards systems that reduce the specific energy demand of the building. The conclusion in this article is that the current incentive system is ineffective in terms of specific energy demand reduction of buildings. It needs to be adapted so it steers towards a reduction of the specific energy demand of buildings.

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Section: Earlier Researchcontrasting

confidence: 41%

An Analysis of Different Solar-Assisted Heating Systems and Their Effect on the Energy Performance of Multifamily Buildings—A Swedish Case

Thygesen

2017

Energies

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“…Recently, Becchio et al [31] obtained different cost best results of buildings and technical arrangements for NZEBs in Italy. There are no rules for defining the features of ZEBs in Italy, while buildings for which these features are pertinent have been developing in the market [32,33].…”

Section: Literature Reviewmentioning

confidence: 99%

An Environmentally-Friendly Tourist Village in Egypt Based on a Hybrid Renewable Energy System––Part Two: A Net Zero Energy Tourist Village

et al. 2015

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Abstract:The main objective of this study is to discuss the economical and the environmental analysis of a net zero energy (NZE) tourist village in Alexandria, Egypt, by maximizing the renewable energy fraction and minimizing the greenhouse gases (GHG) emissions. The hybrid photovoltaics (PV)/wind/diesel/battery system is found to be the optimum hybrid renewable energy system (HRES) for the proposed tourist village under the study. The optimum HRES consists of 1600 kW of PV panels (58.09% solar energy penetration), 1000 kW of wind turbines (41.34% wind energy penetration), 1000 kW of power converters, 200 kW diesel generator (only 0.57% diesel generator penetration) in addition to 2000 batteries with the capacity of 589 Ah each. The levelized cost of energy (COE) from the optimum HRES is $0.17/kWh and the total net present cost (NPC) of this system is $15,383,360. Additionally, the maximum renewable energy fraction is 99.1% and the amount of GHG emitted from the optimum HRES is only 31,289 kg/year, which is negligible in comparison with the other system configurations, therefore the optimum HRES can be considered as a green system. In addition to this, the achieved percentage of the capacity shortage and the unmet load in the optimal HRES is only 0% for both. OPEN ACCESS

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“…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. Becchio et al [16] analyze 40 economically and technically feasible energy efficiency measures for a high performing single family house. They demonstrate that, without proper financial subsides, net ZEB solutions are still far for being the cost optimal ones.…”

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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Cost optimality assessment of a single family house: Building and technical systems solutions for the nZEB target

Cited by 88 publications

References 28 publications

An Analysis of Different Solar-Assisted Heating Systems and Their Effect on the Energy Performance of Multifamily Buildings—A Swedish Case

An Analysis of Different Solar-Assisted Heating Systems and Their Effect on the Energy Performance of Multifamily Buildings—A Swedish Case

An Environmentally-Friendly Tourist Village in Egypt Based on a Hybrid Renewable Energy System––Part Two: A Net Zero Energy Tourist Village

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

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