An energy saving potential analysis of lighting retrofit scenarios in outdoor lighting systems: A case study for a university campus

Görgülü, Sertaç; Kocabey, Süreyya

doi:10.1016/j.jclepro.2020.121060

Cited by 58 publications

(26 citation statements)

References 24 publications

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“…Nowadays, the most extended method to accomplish this goal is to execute a renewal of the point of lights from conventional technologies toward LED emitters. The analysis of several upgrades of outdoor lighting installations with LED technology carried out by Gorgulo and Kocabey [21] shows how values of reduction of the electricity consumption of the same are achieved, conserving or increasing the lighting results, between 36 and 90%, depending on the technologies of origin of the replaced systems and the degree of maintenance of the same. The most repeated usual savings values are between 50 and 60%.…”

Section: Methodsmentioning

confidence: 99%

Adaptation of an Insulated Centralized Photovoltaic Outdoor Lighting Installation with Electronic Control System to Improve Service Guarantee in Tropical Latitudes

Ocana-Miguel¹,

Díaz²,

Gálvez³

et al. 2021

Sustainability

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Sustainability and energy prices make the energy production from renewable sources necessary and photovoltaic energy is ideal on an urban scale and on isolated facilities. However, when the demand for energy is at night, as in lighting installation, the use of accumulative systems is necessary. The use of batteries can account for more than 70% of the budget of these systems and have a critical impact in the project. This problem increases when the installation’s location moves away from the equator, as the variation between the duration of days and nights increases. This implies that the system must be oversized to almost triple its generation and storage capacity to guarantee operation. This paper proposes the use of a robust and affordable electronic centralized management system that can regulate the consumption based on the energy available in the batteries. To test this system, a real case of outdoor lighting nanogrid has been used. The facility has been powered by a grouped photovoltaic battery system dimensioned for the average year solar conditions with and without consumption management. When used without regulation, in winter or cloudy days, there have been repetitive crashes of the system. On the other hand, with the use of the electronic control proposed, the shutdowns have been avoided, regulating the lighting level when necessary. Thus, more efficient and economically affordable systems can be designed which can help to spread the installation of isolated photovoltaic lighting.

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Section: Methodsmentioning

confidence: 99%

Adaptation of an Insulated Centralized Photovoltaic Outdoor Lighting Installation with Electronic Control System to Improve Service Guarantee in Tropical Latitudes

Ocana-Miguel¹,

Díaz²,

Gálvez³

et al. 2021

Sustainability

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“…Based on the audit report, up to 50% reduction of energy cost could be achieved by using energy efficient lamps with payback period less than 10 years. Another potential energy saving project has been studied by [22] for outdoor lighting applications including the roads, footpaths, and garden lights. As a result, 762 MWh of electricity could be saved per year by implementing combination of retrofitting the lighting and dimming control systems.…”

Section: Literature Reviewmentioning

confidence: 99%

Performance analysis of smart lighting control system for sustainable campus operation

Mansur¹,

Ali²,

Baharudin³

et al. 2021

IJATEE

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Global warming is a growing issue today due to the concerns of carbon emissions to the environment. Meanwhile, learning institutions such as university could play a significant role in promoting energy conservation and sustainable campus operations. The objective of this paper is to highlight the performance of smart lighting control system for restrooms where the project has been carried out at the Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis. The methodology processes include the initial study and field measurement of the energy consumption for lighting system during pre-retrofit condition, design, and development of the lighting control system and lastly analysis of the designed system in post-retrofit condition after installation. On the overall, 58 motion sensors have been installed at 30 restrooms where the result shows that in average 77.5% of reduction in energy consumption per day for each restroom. This situation has given tremendous benefits to the university operation where the university could save 9377 kWh per year and reduced RM 3423 from electricity bill per annum. In addition, this project also contributes to the environmental sustainability where the amount of electrical energy that has been successfully reduced is equivalent to 6508 kg of CO 2 avoidance to the environment.

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“…Although the schools were from different regions, they mostly had fluorescent lights installed (17 out of 20 studies). All the light replacements at schools were done with LED lights except for one study from Turkey, [43], where LED lights were too expensive and fluorescent lights were used instead to the replace incandescent lights.…”

Section: Lighting Interventions In Schoolsmentioning

confidence: 99%

“…Gorgulu and Kocabey [43] analysed outdoor campus lighting energy saving using retrofit scenarios. A constant lighting profile was used excluding the control light system EEM.…”

Section: Turkeymentioning

confidence: 99%

LED there be light: The impact of a lighting efficiency campaign at poor schools in South Africa

Booysen¹,

Samuels²,

Grobbelaar³

2020

Preprint

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South Africa’s private sector - under significant pressure to become energy efficient and employ sustainability principles - has long been implementing energy saving mechanisms. Unfortunately, there seems to exist many misplaced incentives in South Africa's public sector that prevent it from embracing energy-efficient technology. With the falling cost of LED lighting and the rising cost of electricity, however, conversions are increasingly cost efficient. Effecting these changes are increasingly urgent given the national utility-imposed rolling blackouts and climate change concerns. The primary education sector is a particularly attractive test case, since money saved on utilities can be allocated to desperately needed value-adding services in schools. From a technical perspective, however, the cost-benefit of replacements and the range of options facing decision makers could be overwhelming. To assess the impact of replacing fluorescent lights with LED lights at schools in South Africa, we propose a model that draws on smart metering data, a bench-test assessment of available LED lights and tariff rates. The model was validated with field tests at three schools and used to assess the impact at seven local schools. The results show that the setup cost differs substantially from the life-cycle cost, and that buying the cheapest lights could prove to be the costliest decision over the light's life cycle. The results also show that lights contribute from 42% to 57% of electricity expenditure, and that monetary savings of 21% to 39% are achievable by replacing fluorescent tubes with the most efficient LED lighting option available.

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An energy saving potential analysis of lighting retrofit scenarios in outdoor lighting systems: A case study for a university campus

Cited by 58 publications

References 24 publications

Adaptation of an Insulated Centralized Photovoltaic Outdoor Lighting Installation with Electronic Control System to Improve Service Guarantee in Tropical Latitudes

Adaptation of an Insulated Centralized Photovoltaic Outdoor Lighting Installation with Electronic Control System to Improve Service Guarantee in Tropical Latitudes

Performance analysis of smart lighting control system for sustainable campus operation

LED there be light: The impact of a lighting efficiency campaign at poor schools in South Africa

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