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Article

The Energy Audit Activity Focused on the Lighting Systems in Historical Buildings

Lighting and Acoustic Laboratory (LIA), Department of Energy, Systems, Territory and Constructions Engineering, University of Pisa, Largo Lucio Lazzarino, Pisa 56122, Italy
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Academic Editor: Rodolfo Araneo
Energies 2016, 9(12), 998; https://doi.org/10.3390/en9120998
Received: 28 September 2016 / Revised: 5 November 2016 / Accepted: 21 November 2016 / Published: 27 November 2016
The energy audit for a building is a procedure designed mainly to obtain adequate knowledge of the energy consumption profile, identify, and quantify opportunities for energy savings by a cost-benefit analysis and report, clearly and comprehensively, about the obtained results. If the audit is referred to a building with a significant historical and artistic value, a compatibility evaluation of the energy saving interventions with the architectural features should also be developed. In this paper, analysing the case study of a historical building used as public offices in Pisa (Italy), the authors describe how it is possible to conduct an energy audit activity (especially dedicated to the lighting system) and they show how, for this type of buildings, it is possible to obtain significant energy savings with a refurbishment of the lighting system. A total number of seven interventions on indoor and outdoor lighting sub-systems were analysed in the paper. They are characterised by absolute compatibility with the historical and artistic value of the building and they show short payback times, variable between 4 and 34 months, allowing a reduction of the electrical energy consumption for the artificial indoor and outdoor lighting variable from 1.1 MWh/year to 39.0 MWh/year. The followed methodology and the evaluation results described in the paper, although based on a case study, can be extended to numerous historical buildings used as public offices, a recurring situation in the centres of Italian historical cities. View Full-Text
Keywords: energy saving; energy audit; historical buildings; lighting systems; lamps replacement energy saving; energy audit; historical buildings; lighting systems; lamps replacement
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MDPI and ACS Style

Salvadori, G.; Fantozzi, F.; Rocca, M.; Leccese, F. The Energy Audit Activity Focused on the Lighting Systems in Historical Buildings. Energies 2016, 9, 998. https://doi.org/10.3390/en9120998

AMA Style

Salvadori G, Fantozzi F, Rocca M, Leccese F. The Energy Audit Activity Focused on the Lighting Systems in Historical Buildings. Energies. 2016; 9(12):998. https://doi.org/10.3390/en9120998

Chicago/Turabian Style

Salvadori, Giacomo, Fabio Fantozzi, Michele Rocca, and Francesco Leccese. 2016. "The Energy Audit Activity Focused on the Lighting Systems in Historical Buildings" Energies 9, no. 12: 998. https://doi.org/10.3390/en9120998

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