Energy-Efficient Solutions: A Multi-Criteria Decision Aid Tool to Achieve the Targets of the European EPDB Directive

Fabrizio Cumo (), Elisa Pennacchia and Claudia Zylka
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Fabrizio Cumo: Department of Planning, Design, Technology of Architecture, Sapienza University of Rome, Via Flaminia, 72, 00196 Rome, Italy
Elisa Pennacchia: Department of Architecture and Design, Sapienza University of Rome, Via Flaminia, 359, 00196 Rome, Italy
Claudia Zylka: Department of Astronautical, Electrical and Energy Engineering, Sapienza University of Rome, Via Eudossiana, 18, 00184 Rome, Italy

Energies, 2023, vol. 16, issue 17, 1-18

Abstract: The building and construction sector has a significant impact on the CO 2 emissions and pollutants released into the atmosphere, which contribute to climate change. The EPDB Directive mandates the achievement of minimum energy class E for all residential buildings by 2030 and energy class D by 2033. Particularly, in Italy, about 86% of the existing building stock predates the enactment of any energy laws or regulations, making it imperative to apply the energy efficiency interventions. This paper provides a support decision tool for the identification of the standardized interventions in the building envelope, the air conditioning system, and domestic hot water production. This study is focused on a specific construction period class (1976–1990) in six different climatic zones. The methodological approach is based on a cataloguing phase and the definition of ante operam energy classes as well as on case study identification, energy requalification intervention identification, solution simulations, and cost estimation. By simulating the standardized interventions for each climatic zone, a range of possible combinations is identified. The most advantageous ones are determined based on a cost–benefit analysis considering the potential class jump achieved. The research result is a matrix of energy efficiency interventions that is applicable to each climatic zone and can be extended to the existing housing stock.

Keywords: energy requalification; standardized efficiency solutions; cost–benefit analysis; existing building stock; building energy performance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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