Sustainability in Public Lighting: The Methodology for Identifying Environmentally Optimal Solutions in Replacement Planning—A Case Study

The urban public lighting system plays a fundamental role in enhancing safety and shaping the nocturnal identity of the city. Efficient lighting is also a key factor in reducing energy consumption and lowering atmospheric emissions. In the context of sustainable development goals, increasing attenti...

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Main Authors: Fabrizio Cumo, Elisa Pennacchia, Adriana Scarlet Sferra
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/18/3/535
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author Fabrizio Cumo
Elisa Pennacchia
Adriana Scarlet Sferra
author_facet Fabrizio Cumo
Elisa Pennacchia
Adriana Scarlet Sferra
author_sort Fabrizio Cumo
collection DOAJ
description The urban public lighting system plays a fundamental role in enhancing safety and shaping the nocturnal identity of the city. Efficient lighting is also a key factor in reducing energy consumption and lowering atmospheric emissions. In the context of sustainable development goals, increasing attention is being directed towards the energy, social, economic, and environmental benefits associated with the adoption of LED lighting systems. This paper aims to assess the environmental impacts of two different public outdoor lighting replacement planning scenarios. The methodology employed in this study calculates the environmental impacts using a life cycle approach, incorporating data from the Environmental Product Declarations (EPDs) of the lighting systems. It involves a systematic census and categorization of lighting fixtures based on their installation year to determine both their quantity and average efficiency. This methodology, applied to a case study, demonstrates that it is possible to reduce the CO<sub>2</sub>-equivalent emissions by approximately 7% depending on the technical and environmental performance of the fixtures and the timing of their replacements. These results provide a scientific foundation for supporting both the preparation of planning tools by governance entities and the technical and economic feasibility of designing and implementing interventions aimed at improving the environmental performance of public lighting. These efforts could contribute to achieving climate neutrality, conserving biodiversity, and mitigating the effects of climate change.
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spelling doaj-art-4e39dcbd740341e3a753baca7fcd9c6f2025-08-20T03:12:35ZengMDPI AGEnergies1996-10732025-01-0118353510.3390/en18030535Sustainability in Public Lighting: The Methodology for Identifying Environmentally Optimal Solutions in Replacement Planning—A Case StudyFabrizio Cumo0Elisa Pennacchia1Adriana Scarlet Sferra2Interdepartmental Research Centre Territory, Building, Restoration and Environment, Sapienza University of Rome, Via A. Gramsci, 53, 00197 Rome, ItalyInterdepartmental Research Centre Territory, Building, Restoration and Environment, Sapienza University of Rome, Via A. Gramsci, 53, 00197 Rome, ItalyInterdepartmental Research Centre Territory, Building, Restoration and Environment, Sapienza University of Rome, Via A. Gramsci, 53, 00197 Rome, ItalyThe urban public lighting system plays a fundamental role in enhancing safety and shaping the nocturnal identity of the city. Efficient lighting is also a key factor in reducing energy consumption and lowering atmospheric emissions. In the context of sustainable development goals, increasing attention is being directed towards the energy, social, economic, and environmental benefits associated with the adoption of LED lighting systems. This paper aims to assess the environmental impacts of two different public outdoor lighting replacement planning scenarios. The methodology employed in this study calculates the environmental impacts using a life cycle approach, incorporating data from the Environmental Product Declarations (EPDs) of the lighting systems. It involves a systematic census and categorization of lighting fixtures based on their installation year to determine both their quantity and average efficiency. This methodology, applied to a case study, demonstrates that it is possible to reduce the CO<sub>2</sub>-equivalent emissions by approximately 7% depending on the technical and environmental performance of the fixtures and the timing of their replacements. These results provide a scientific foundation for supporting both the preparation of planning tools by governance entities and the technical and economic feasibility of designing and implementing interventions aimed at improving the environmental performance of public lighting. These efforts could contribute to achieving climate neutrality, conserving biodiversity, and mitigating the effects of climate change.https://www.mdpi.com/1996-1073/18/3/535lighting public systemenergy efficiencyenvironmental product declarationenvironmental cost-effectiveness
spellingShingle Fabrizio Cumo
Elisa Pennacchia
Adriana Scarlet Sferra
Sustainability in Public Lighting: The Methodology for Identifying Environmentally Optimal Solutions in Replacement Planning—A Case Study
Energies
lighting public system
energy efficiency
environmental product declaration
environmental cost-effectiveness
title Sustainability in Public Lighting: The Methodology for Identifying Environmentally Optimal Solutions in Replacement Planning—A Case Study
title_full Sustainability in Public Lighting: The Methodology for Identifying Environmentally Optimal Solutions in Replacement Planning—A Case Study
title_fullStr Sustainability in Public Lighting: The Methodology for Identifying Environmentally Optimal Solutions in Replacement Planning—A Case Study
title_full_unstemmed Sustainability in Public Lighting: The Methodology for Identifying Environmentally Optimal Solutions in Replacement Planning—A Case Study
title_short Sustainability in Public Lighting: The Methodology for Identifying Environmentally Optimal Solutions in Replacement Planning—A Case Study
title_sort sustainability in public lighting the methodology for identifying environmentally optimal solutions in replacement planning a case study
topic lighting public system
energy efficiency
environmental product declaration
environmental cost-effectiveness
url https://www.mdpi.com/1996-1073/18/3/535
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AT elisapennacchia sustainabilityinpubliclightingthemethodologyforidentifyingenvironmentallyoptimalsolutionsinreplacementplanningacasestudy
AT adrianascarletsferra sustainabilityinpubliclightingthemethodologyforidentifyingenvironmentallyoptimalsolutionsinreplacementplanningacasestudy