Lighting system slashes energy use
The city of Oslo needed a street lighting solution to satisfy directives to reduce energy use and CO2 emissions. New electronic ballasts can communicate over existing power lines using power line technology.
AN OUTDOOR LIGHTING SYSTEM can account for as much as 38 percent of a city’s total energy use. To save energy, a European law requires street lighting systems use electronic ballasts. The city of Oslo, Norway, sought a solution to satisfy this law, along with European and worldwide directives to reduce energy use and CO2 emissions, reduce streetlight operating costs, ensure driver and pedestrian safety, and allow remote monitoring and control.
Oslo chose an Echelon intelligent street lighting system based on LONWORKS. The project was the first large-scale implementation of a LONWORKS-based control network in a street lighting application, and included replacing older, mechanical ballasts in the city’s 55,000 streetlights with electronic ballasts over existing power lines.