Decision-making for renovating the Mediterranean social housing: a practical approach through an interactive open access tool

To achieve 2050 Climate Neutrality, building stock requires a multidimensional renovation process. This is particularly urgent in most vulnerable households, with higher exposure to climate change, where this procedure should focus on cost-controlled passive measures. Given the complexity of identif...

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Bibliographic Details
Authors: Calama-González, Carmen María, Escandón Ramírez, Rocío, Suárez, Rafael, Ascione, Fabrizio
Format: article
Status:Published version
Publication Date:2025
Country:España
Institution:Universidad de Sevilla (US)
Repository:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/170961
Online Access:https://hdl.handle.net/11441/170961
https://doi.org/10.1016/j.enbuild.2025.115629
Access Level:Open access
Keyword:Parametric building stock modelling
Multi-objective optimization
Investment costs
Adaptive thermal comfort
Clustering retrofit strategies
Deep vs partial renovation
Description
Summary:To achieve 2050 Climate Neutrality, building stock requires a multidimensional renovation process. This is particularly urgent in most vulnerable households, with higher exposure to climate change, where this procedure should focus on cost-controlled passive measures. Given the complexity of identifying optimal strategies, it is imperative to improve the retrofitting process of the social housing stock to enhance its energy performance guaranteeing health and comfort. For this, an interactive tool was developed focused on the case of southern Spain. Able to provide optimized combinations of energy retrofit strategies, using NSGA-II genetic algorithms and setting two optimization objectives: minimizing thermal discomfort and economic costs. The freely accessible tool was designed with practical and didactic approach to facilitate decision-making. The results obtained suggest the feasibility of implementing phase actions instead of a single large-scale intervention and show the tool’s ability to quantify the percentage of thermal comfort improvement achieves at each phase.