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Heating Energy Performance Gap in Vulnerable Households: Identification and Impact of Associated Variables

Author

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  • Sebastián Seguel-Vargas

    (Department of Construction Sciences, Faculty of Architecture, Construction and Design, Universidad del Bío-Bío, Concepción 4081112, Chile)

  • Carlos Rubio-Bellido

    (Department of Architectural Constructions II, University of Seville, 41012 Sevilla, Spain)

  • Lucía Pereira-Ruchansky

    (Climate and Comfort Area, Faculty of Architecture, Design and Urbanism, University of the Republic, Montevideo 11200, Uruguay)

  • Alexis Pérez-Fargallo

    (Escuela de Arquitectura, Facultad de Ingeniería, Arquitectura y Diseño, Universidad San Sebastián, Concepción 4090762, Chile)

Abstract

Reducing energy consumption in the construction sector is urgently needed. In Chile, where income distribution is unequal and the cost of energy is high, energy demand is seriously affected, especially in vulnerable households. Hence, it is essential to establish public policies with more realistic energy-saving goals to address this situation. However, reliably predicting the energy performance of buildings remains a challenge. For this reason, this study aims to identify and evaluate the impact of the variables associated with energy performance in vulnerable households in Central-Southern Chile and propose values that would reduce the gap. A sensitivity analysis was conducted to achieve this, adjusting the energy performance parameters in a base model with data analyzed using local standards. In addition, field information was collected in 93 households to obtain the actual energy consumption. The main results show that the variables that most impacted performance were infiltration, COP, heating setpoints, and schedules, which generated a 60% difference between the theoretical and actual consumption.

Suggested Citation

  • Sebastián Seguel-Vargas & Carlos Rubio-Bellido & Lucía Pereira-Ruchansky & Alexis Pérez-Fargallo, 2024. "Heating Energy Performance Gap in Vulnerable Households: Identification and Impact of Associated Variables," Energies, MDPI, vol. 17(19), pages 1-21, October.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:19:p:4995-:d:1493778
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    References listed on IDEAS

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    1. Menezes, Anna Carolina & Cripps, Andrew & Bouchlaghem, Dino & Buswell, Richard, 2012. "Predicted vs. actual energy performance of non-domestic buildings: Using post-occupancy evaluation data to reduce the performance gap," Applied Energy, Elsevier, vol. 97(C), pages 355-364.
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