Abstract

Street lighting has a big impact on the energy consumption of Spanish municipalities. To decrease this consumption, the Spanish government has developed two different regulations to improve energy savings and efficiency, and consequently, reduce greenhouse-effect gas emissions. However, after these efforts, they have not obtained the expected results. To improve the effectiveness of these regulations and therefore to optimize energy consumption, a study has been done to analyze the different devices which influence energy consumption with the intention of better understanding their behavior and performance. The devices analyzed were lamps, ballasts, street lamp globes, control systems and dimmable lighting systems. To improve their performance, they have been analyzed from three points of view: changes in technology, use patterns and standards. Thanks to this study, some aspects have been found that could be taken into account if we really wanted to use energy efficiently.

Highlights

  • Street lighting is an integral part of the municipal environment, promoting comfort, as well as enhancing the safety and security of its users [1]

  • The related work is divided into two parts: the first part analyses the different proposals to measure energy efficiency and the second part shows the strengths of some foreign street lighting standards

  • A good example is the research done by Dolora [33], who studied the savings for high pressure sodium (HPS) 150 W lamps

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Summary

Introduction

Street lighting is an integral part of the municipal environment, promoting comfort, as well as enhancing the safety and security of its users [1]. The average lamp power used in Spain, with an average of 157 W per lamp, is one of the highest in the European Union, well above the United Kingdom (76 W) or The Netherlands (61 W) [3] This is perhaps due to the fact that 20% of street lighting lamps are based on outdated and inefficient technologies [4]. To help with this issue, the aim of this manuscript is to detect any aspects that the previous regulations might have overlooked These aspects have been analysed form the point of view of energy efficiency and energy consumption. The remainder of this paper is organized as follows: Section 2 presents the related work, Section 3 describes the main elements of our study and Section 4 contains the conclusions

Related Work
Main Elements
Ballast
Street Lamp Globes
Hours of Operation
Lighting Level Control Devices
Renewable Energies
Conclusions
Findings
Background
Full Text
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