The solution that covers all three aspects of the problem, i.e. energy efficiency, environmental aspect and light distribution, is the implementation of LED technology in the public lighting system. In fact, LED technology is the most energy efficient technology that consumes several times less electricity than the older generation lamps, and for the same level of illumination, thus by implementing LED technology it is possible to achieve up to 80% savings as well as to minimize maintenance costs and ensure very long lifetime of the lamp. Furthermore, LED technology reduces the light pollution to the minimum and reduces CO2 emission. Additionally, LED technology does not require the disposal of hazardous waste, which generates high costs, since it does not use sodium, mercury and other hazardous substances. In this way, the implementation of LED technology in public lighting contributes to the protection of the environment, while ensuring compliance with all national and EU regulations related to ecology and environmental protection. Finally, by using LED technology in public lighting sytems it is possible to meet all lighting requirements, since each lamp can be adapted for the specific lighting configuration and thus achieve optimal illumination of the specific area.
In short, LED technology enables:
In addition to the implementation of energy-efficient LED technology, which by itself saves energy, additional benefit for Local government is the possibility of public lighting reconstruction and the implementation of LED technology through the ESCO model and the use of the non-refundable grant from the Environmental Protection and Energy Efficiency Fund. In this way LGU’s are able to reconstruct public lighting without initial costs and investing their own resources.
By applying the most up to date LED technology in public lighting system it is possible to achieve energy savings of up to 80% compared to the reference conditions while preserving the environment, since LED street lamps produce minimum light pollution and reduce CO2 emission.
Public lighting consumes significant amounts of energy and is consequently a significant burden on the budgets of local and regional government.
Recently rising costs, but also other EU directives and national legislation, impose the urgent reconstruction of the current outdated public lighting by new technologies.
LED (Light Emitting Diode) technology is no longer just a technology of the future but also the present one.
LED light sources have been launched since 50 years ago, but then, till recently were only marginally used, certainly not in the public lighting
The technology is developing rapidly, the efficiency of LEDs has increased in the last 10 years from 50lm/W in 2004 to 180lm/W in 2016, with a projection of increasing to 200 lm/W in 2018.
This makes LED absolutely the most efficient light source of today and tomorrow.
In contrast to high intensity discharge bulbs (HID-High Intensity Discharge) based on mercury vapours VTF, which have efficiency about 50lm/W or sodium VTNa with efficiency 80-120lm/W, LED significantly superceeds those efficiencies.