Tuesday, January 2, 2018

Energy saving auto dimming street lights

Cool! A five-mile stretch of road near Hole - just outside Oslo, Norway - uses hundreds of radars to detect cars, bikes and pedestrians...
At highway 155 in Nes i Hole, 220 radars have been installed on each light pole. They detect oncoming traffic and adjust the strength of the light. By doing this, the 9 km/5.5 mi stretch saves a whopping 2100 kWh per week. The extra investment will break even after just 4.5 years.

Bjørn Nyland 

Source(s): cetusnews

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