Next Article in Journal
Hydraulic Hybrid Excavator—Mathematical Model Validation and Energy Analysis
Next Article in Special Issue
Equivalence of Primary Control Strategies for AC and DC Microgrids
Previous Article in Journal
Wind Turbines’ End-of-Life: Quantification and Characterisation of Future Waste Materials on a National Level
Previous Article in Special Issue
Investigation the Influence of Different Salts on the Degradation of Organic Dyes Using Non-Thermal Plasma
Article Menu
Issue 12 (December) cover image

Export Article

Open AccessArticle
Energies 2016, 9(12), 998;

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
Author to whom correspondence should be addressed.
Academic Editor: Rodolfo Araneo
Received: 28 September 2016 / Revised: 5 November 2016 / Accepted: 21 November 2016 / Published: 27 November 2016
Full-Text   |   PDF [2832 KB, uploaded 29 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

Figure 1

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).

Share & Cite This Article

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.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top