Optimizing Energy Renovation in Building Portfolios: Approach and Decision-Making Platform

Marco Castagna (), Olga Somova, Cristian Pozza, Giuseppe De Michele, Federico Garzia, Daniele Antonucci and Roberta Pernetti
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Marco Castagna: Institute for Renewable Energy, EURAC Research, Viale Druso/Drususallee 1, 39100 Bolzano, Italy
Olga Somova: Institute for Renewable Energy, EURAC Research, Viale Druso/Drususallee 1, 39100 Bolzano, Italy
Cristian Pozza: Institute for Renewable Energy, EURAC Research, Viale Druso/Drususallee 1, 39100 Bolzano, Italy
Giuseppe De Michele: Institute for Renewable Energy, EURAC Research, Viale Druso/Drususallee 1, 39100 Bolzano, Italy
Federico Garzia: Institute for Renewable Energy, EURAC Research, Viale Druso/Drususallee 1, 39100 Bolzano, Italy
Daniele Antonucci: Institute for Renewable Energy, EURAC Research, Viale Druso/Drususallee 1, 39100 Bolzano, Italy
Roberta Pernetti: Department of Public Health, Experimental and Forensic Medicine, Università degli Studi di Pavia, Via Forlanini 2, 27100 Pavia, Italy

Energies, 2024, vol. 17, issue 22, 1-17

Abstract: The building sector contributes significantly to energy consumption and greenhouse gas emissions, with many buildings being energy inefficient. In response, the European Green Deal promotes improving energy efficiency to support decarbonization goals. However, managing energy consumption and integrating data from multiple sources presents challenges, especially for large building portfolios. This study introduces a novel methodology designed to optimize energy renovation strategies, balancing technical, financial, and maintenance considerations. The methodology is implemented in CERPlan 1.0, a web-based decision-support platform that combines data on building energy performance, renovation costs, and maintenance needs. Through simulations, CERPlan 1.0 helps decision-makers prioritize retrofit interventions based on economic criteria while leveraging synergies between energy improvements and regular maintenance. Application of this methodology to real estate portfolios reveals opportunities to enhance cost-effectiveness and energy savings. The results show that integrating maintenance into renovation planning reduces payback times and allows for more comprehensive renovation strategies. The conclusions highlight CERPlan 1.0’s potential to improve decision-making, making building renovations more efficient and sustainable.

Keywords: energy renovation; building portfolio management; cost-effective retrofit; decision-support platform (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: 2024
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