Why district renovation is not leading the race?: critical assessment of building renovation potential under different intervention levels

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dc.contributor.authorHusiev, Oleksandr
dc.contributor.authorCampos Celador, Álvaro
dc.contributor.authorÁlvarez Sanz, Milagros
dc.contributor.authorTerés Zubiaga, Jon
dc.date.accessioned2025-06-13T11:25:11Z
dc.date.available2025-06-13T11:25:11Z
dc.date.issued2023-09-15
dc.date.updated2025-06-13T11:25:11Z
dc.description.abstractBuilding is one of the main sectors in which significant energy savings can be achieved with a consequent reduction in emissions. This paper assesses the large-scale renovation of buildings, exploring the quantitative and qualitative factors that determine their replicability potential from three different perspectives, namely dwelling, building and district intervention level. Different passive and active measures are assessed, covering energy saving measures, the improvement of energy supply systems and the integration of renewable energy sources. Different scenarios are defined for each intervention level, which are evaluated using the methodology developed in the IEA-EBC Annex 75 project. The methodology is applied to a residential district located in Bilbao (Northern Spain). The analysis is based on the results obtained from the simulation of 41 combinations of different renovation options, obtained by simulation in the Design Builder software. The assessment is carried out from the evaluation of different key performance factors, including annualised cost and annual primary energy consumption, as well as the CAPEX and OPEX requirements. The results show that energy renovation of buildings offers a great opportunity for energy reduction at affordable investment costs, obtaining the cost optimal values when the intervention focus on the energy system and reaching net NRPE values close to zero when the intervention is carried out in a comprehensive way, considering energy systems and thermal improvement of the envelope. Additionally, the different energy reduction scenarios show that, while interventions at district level offer the greatest potential for minimising annual costs and primary energy consumption levels, intervening at building level offers only slightly worse results. However, there are other issues which can better explain the current low rate of renovation works in the urban environment. Thus, if the additional existing social, material and legal barriers and constraints are included in the analysis, it becomes clear why renovation from a district perspective is not actually leading the race. Given this situation, some measures and policies are proposed to realise the true potential of large-scale building renovation.en
dc.description.sponsorshipThe project leading to these results has received funding from “La Caixa” Foundation under the project code LCF/PR/SR20/52550013en
dc.identifier.citationHusiev, O., Campos-Celador, A., Álvarez-Sanz, M., & Terés-Zubiaga, J. (2023). Why district renovation is not leading the race?: critical assessment of building renovation potential under different intervention levels. Energy and Buildings, 295. https://doi.org/10.1016/J.ENBUILD.2023.113288
dc.identifier.doi10.1016/J.ENBUILD.2023.113288
dc.identifier.issn0378-7788
dc.identifier.urihttp://hdl.handle.net/20.500.14454/3047
dc.language.isoeng
dc.publisherElsevier Ltd
dc.rights© 2023 The Author(s)
dc.subject.otherCost-effective assessment
dc.subject.otherEnergy renovation
dc.subject.otherLarge-scale building renovation
dc.subject.otherNearly zero energy districts
dc.subject.otherRenewable integration in buildings
dc.subject.otherUrban energy transition
dc.titleWhy district renovation is not leading the race?: critical assessment of building renovation potential under different intervention levelsen
dc.typejournal article
dcterms.accessRightsopen access
oaire.citation.titleEnergy and Buildings
oaire.citation.volume295
oaire.licenseConditionhttps://creativecommons.org/licenses/by-nc-nd/4.0/
oaire.versionVoR
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