Sustainable street lighting with LEDs

Guzzini designs OSRAM Opto Semiconductors LEDs into highly efficient streetlamps

With iGuzzini’s new Archilede, designed and manufactured by iGuzzini for Enel Sole, LEDs are being used on a large scale for the first time for street lighting in Italy. Several hundred of these innovative LED luminaires are now installed in various Italian cities. OSRAM Opto Semiconductors’ durable and highly efficient LEDs with a light output of 100lm/W illuminate the northern Italian cities of Piacenza, Lodi and Alessandria and are already reducing energy costs and eliminating large amounts of CO2.

New Archilede, iGuzzini by ENEL Sole, street luminaire shine with OSRAM Opto Semiconductors’ Golden DRAGON Plus LEDs with a color temperature of 6,000K. The color rendering of the LEDs provides a natural color impression which can enhance safety and security. Due to their directional nature, LEDs eliminate stray light and reduce overall light pollution. In additional to their high efficiency this LED also provides long life (between 60,000 and 100,000 hours depending on operating conditions) which translates to lower maintenance costs.

The light-emitting diodes have given iGuzzini’s designers considerable creative freedom due to their small dimensions. The luminaire itself was developed specifically for street lighting requirements and has its own individual, contemporary design. The Archilede has been designed for use on any type of roadway.

With its intelligent control system and various programming options these LED street luminaires are capable, for example, of automatically shining more light in one direction depending on the volume of traffic or of shining more light on a roadway crossing than other areas of the road. It is also possible to customize the lighting for different “user groups”, for example, pedestrians, cyclists or motor vehicles – and adapt lighting specifically for them.

LED as an efficient and economical alternative to conventional technologies

Compared with the sodium vapour and mercury vapour lamps widely used in street lighting, LED luminaires achieve energy savings of 40–60 percent. Extrapolated to 1,000 lamps with 84 LED each, this equates to savings in CO2 uptake of more than 6,600 trees compared with conventional sodium vapour lamps.

Markus Klein, Senior Director SSL at OSRAM Opto Semiconductors, says, “Even though the initial investment costs of an LED street lighting system is higher than a conventional lighting system, over a few years time the LED system will end up costing less due to the high efficiency, long operating life and low maintenance costs of the LED system.”

“With OSRAM Opto Semiconductors’ high-performance LEDs we are able to provide local authorities with street luminaires that are attractive looking on the one hand and represent a sustainable solution on the other; as well as electricity costs they also drastically reduce CO2 emissions and maintenance requirements”, says Adolfo Guzzini, iGuzzini President.

The Archilede can be seen at the OSRAM booth on Light+Building 2010, together with LED streetlamps from Hess, Siteco and Leipziger Leuchten.