Energy-environmental and cost assessment of a set of strategies for retrofitting a public building toward nearly zero-energy building target

Ferrari, Simone; Beccali, Marco

doi:10.1016/j.scs.2017.03.010

Cited by 106 publications

(40 citation statements)

References 12 publications

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“…The increase in thermal performance of buildings with regard to roof and facade would diminish the emission proportionally. Also, the reduction in the energy consumption is found in the range of 2 and 6% depending on the thickness of thermal insulations [23].…”

Section: Nearly Zero Energy Buildingsmentioning

confidence: 98%

“…The law embraces both energy performance of buildings in terms of particularly thermal features and HVAC systems (nZEB). For the new public buildings, the starting date is considered to be 2019, but the nonpublic buildings are planned to be built as nZEB from 2021 [23].…”

Section: Building Sectormentioning

confidence: 99%

“…Along with improving energy performance of the building, the economic growth and the life quality also increase proportionally [5]. It is widely believed that the application of retrofitting the existing buildings will comprise a wide range of developments including thermal insulation of building facade and roofs, upgrading the space heating and cooling systems, renovation of electrical and electronic appliances, and utilizing RETs on-site or nearby [23]. Looking at the report presented by European Commissions, it is predicted that minimum energy saving can be targeted by 2020 and the amount saved would be in the range of 60-80 Mtoe/year [37].…”

Section: Nearly Zero Energy Buildingsmentioning

confidence: 99%

See 2 more Smart Citations

Low/Zero-Carbon Buildings for a Sustainable Future

Cüce¹,

Besir²,

Cüce³

2018

Low Carbon Transition - Technical, Economic and Policy Assessment

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Fossil fuel-based energy consumption is still dominant in the world today, and there is a consensus on the limited reserves of these energy resources. Therefore, there is a strong stimulation into clean energy technologies to narrow the gap between fossil fuels and renewables. In this respect, several commitments and codes are proposed and adopted for a low energy-consuming world and for desirable environmental conditions. Sectoral energy consumption analyses clearly indicate that buildings are of vital importance in terms of energy consumption figures. From this point of view, buildings have a great potential for decisive and urgent reduction of energy consumption levels and thus greenhouse gas (GHG) emissions. Among the available retrofit solutions, greenery systems (GSs) stand for a reliable, cost-effective and eco-friendly method for remarkablemitigation of energy consumed in buildings. Through the works comparing the thermal regulation performance of uninsulated and green roofs, it is observed that the GS provides 20°C lower surface temperature in operation. Similar to green roofs, vertical greenery systems (VGSs) also reduce energy demand to approximately 25% as a consequence of wind blockage effects in winter. Therefore, within the scope of this chapter, GSs are evaluated for a reliable and effective retrofit solution toward low/zero carbon buildings (L/ZCBs).

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Section: Nearly Zero Energy Buildingsmentioning

confidence: 98%

Section: Building Sectormentioning

confidence: 99%

Section: Nearly Zero Energy Buildingsmentioning

confidence: 99%

See 1 more Smart Citation

Low/Zero-Carbon Buildings for a Sustainable Future

Cüce¹,

Besir²,

Cüce³

2018

Low Carbon Transition - Technical, Economic and Policy Assessment

View full text Add to dashboard Cite

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“…Analysis concerning renovation towards nZEB buildings-independently of the programmatic function-can also be found and clearly show not only the relationship between the concept of nZEB and economic performance [13] but also the applicability of the concept in terms of differences in geographical and national contexts [8,[14][15][16], as well as the advantages of renovating buildings up to this level in terms of resilience to future climates [17].…”

Section: Introductionmentioning

confidence: 99%

Relevance of Embodied Energy and Carbon Emissions on Assessing Cost Effectiveness in Building Renovation—Contribution from the Analysis of Case Studies in Six European Countries

2018

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Abstract:The construction sector is facing increasingly strict energy efficiency regulations. Existing buildings have specific technical, functional and economic constraints, which, in fulfilling regulations, could lead to costly and complex renovation procedures and also lead to missed opportunities for improving their energy performance. In this article, the methodology for comparing cost-optimality in building renovations, developed in the International Energy Agency (IEA)-Energy in Buildings and Communities (EBC) Annex 56 project, is extended with a life cycle assessment by including embodied primary energy and carbon emissions in the calculations. The objective is to understand the relevance of embodied energy and carbon emissions in the evaluation of the cost effectiveness of building renovation solutions towards nearly zero energy buildings, as well as the effect of the embodied values in the achievable carbon emissions and primary energy reductions expected in an energy renovation. Results from six case studies, representative of different regions in Europe, suggest that embodied values of energy and carbon emissions have a decreasing effect-ranging from 2 to 32%-on the potential reductions of energy and emissions that can be achieved with renovation measures in buildings. In addition, the consideration of the embodied energy and carbon emissions does not affect the ranking of the renovation packages.

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“…Kampelis et al [11] analyzed the gap between actual building energy use and predictive numerical modelling by simulating various building services systems and envelope components. Ferrari and Beccali [12] evaluated alternative retrofit options required to turn an existing office building into an nZEB office building, in terms of their relative technical and economic performances. Harkous et al further evaluated the optimal combination of passive and active strategies and systems that contribute to the zero energy use in nZEBs [13].…”

Section: Introductionmentioning

confidence: 99%

The Social, Educational, and Market Scenario for nZEB in Europe

et al. 2018

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Nearly Zero Energy Buildings (nZEB) are a significant part of the energy efficiency strategy of the European Union. As buildings represent approximately 40% of the final energy use in Europe, the reduction of their energy demand is key for a sustainable future. This paper takes a qualitative approach and presents data about professional and market barriers, as well as the educational market in relation to the implementation of nZEB policies for new and retrofit buildings in 11 European countries. Different levels of policy enactments and market penetration are reported and are generally found to be more advanced in western and central European countries. Furthermore, gender equality is examined in the building sector in relation to nZEB and presents significant gaps, with a more balanced situation reported in southern Europe. The accreditation and targeted education of nZEB experts is still almost non-existent in the examined countries, and the need for training of building professionals is highlighted as a critical missing component of current policy. This research aims to be the first step towards the creation of educational material and programmes as a mean to accelerate the transition to nZEB.

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Energy-environmental and cost assessment of a set of strategies for retrofitting a public building toward nearly zero-energy building target

Cited by 106 publications

References 12 publications

Low/Zero-Carbon Buildings for a Sustainable Future

Low/Zero-Carbon Buildings for a Sustainable Future

Relevance of Embodied Energy and Carbon Emissions on Assessing Cost Effectiveness in Building Renovation—Contribution from the Analysis of Case Studies in Six European Countries

The Social, Educational, and Market Scenario for nZEB in Europe

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