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Energies 2016, 9(7), 522; doi:10.3390/en9070522

Cost-Benefit Analysis for Energy Management in Public Buildings: Four Italian Case Studies

1
DIAEE—Department of Astronautic, Electric and Energetic Engineering, Sapienza University, Corso Vittorio Emanuele II 244, 00186 Rome, Italy
2
CITERA—Interdisciplinary Centre for Housing, Heritage and Environment, Sapienza University, Via Gramsci 53, 00197 Rome, Italy
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Mashrur (Ronnie) Chowdhury
Received: 27 January 2016 / Revised: 30 June 2016 / Accepted: 4 July 2016 / Published: 8 July 2016
View Full-Text   |   Download PDF [3703 KB, uploaded 8 July 2016]   |  

Abstract

Improving energy efficiency in public buildings is one of the main challenges for a sustainable requalification of energy issues and a consequent reduction of greenhouse gas (GHG) emissions. This paper aims to provide preliminary information about economic costs and energy consumption reductions (benefits) of some considered interventions in existing public buildings. Methods include an analysis of some feasible interventions in four selected public buildings. Energy efficiency improvements have been assessed for each feasible intervention. The difference of the building global energy performance index (EPgl) has been assessed before and after each intervention. Economic costs of each intervention have been estimated by averaging the amount demanded by different companies for the same intervention. Results obtained show economic costs and the EPgl percentage improvement for each intervention, highlighting and allowing for the comparison of energy consumption reduction and relative economic costs. The research results come from data gathered from four public buildings, and as such they could not be used to generically identify cost-beneficial energy efficiency interventions for every context or building type. However, the data reveals useful cost based considerations for selecting energy efficiency interventions in other public buildings. View Full-Text
Keywords: cost-benefit analysis; energy efficiency; public buildings; trigeneration plant; thermostatic valves; geothermal plant; building envelope; retrofitting; energy demand savings cost-benefit analysis; energy efficiency; public buildings; trigeneration plant; thermostatic valves; geothermal plant; building envelope; retrofitting; energy demand savings
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Astiaso Garcia, D.; Cumo, F.; Tiberi, M.; Sforzini, V.; Piras, G. Cost-Benefit Analysis for Energy Management in Public Buildings: Four Italian Case Studies. Energies 2016, 9, 522.

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