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LED street lighting project cuts energy consumption in half

Technology News |
By eeNews Europe


In the scope of the project, street lanterns used in the historic town centre of Arraiolos were replaced completely by new luminaires that use energy-efficient LED-technology in combination with an intelligent lighting management system (LMS).

Working together with the Regensburg-based semiconductor manufacturer Osram Opto Semiconductors, Schréder lighting solutions realised the first conversion to sustainable street lighting in Portugal: 400 straight-lined “Rivara” Schréder luminaires, developed by the design office ECLIPz, now illuminate the streets in Arraiolos. Each one has been equipped with 36 warm-white (3000K) Golden Dragon Plus-LEDs from Osram. Their broad radiation angle of 170° facilitates a balanced and even illumination, at a consistently low power consumption compared to conventional sodium-halide lamps.

The LEDs also comply with the particular prerequisites of historical cities, as their natural color rendering – with a CRI of 82 – ensures a pleasantly warm color impression.

An important component of the installation is the intelligent lighting management system, by means of which the street lights can be centrally controlled via Power Line Communication (PLC). Hence, not only can the lighting intensity of every single luminary be programmed, the light is also only provided where it is really needed. Thanks to the combination of this light control and the efficient LED-technology, the community of Arraiolos can attain a significant reduction of their energy consumption by approximately 50 percent as well as of their CO2 emissions.


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