City Light Continues Arterial LED Streetlight Installations

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Posted: Monday, August 17, 2015 8:20 pm

SEATTLE, Wash. -- Seattle City Light is continuing to improve customer safety, reduce carbon emissions and conserve resources by converting streetlights on arterial roadways from high-pressure sodium lights to energy-efficient LEDs. The new LED lights will make arterial streets safer by increasing visibility at night.

City Light installed about 40,000 LED streetlights throughout residential neighborhoods in the utility’s service territory. The utility’s work is now focused on converting the remaining arterial streetlights to LED fixtures. By the end of 2015, the utility expects to convert about 12,000 HPS lights to LED fixtures and save about 9 million kWh of electricity per year. It will also save more than $1.8 million dollars for the city of Seattle and the utility’s suburban franchise cities.

The city of Seattle sets regulations based on national standards for how much light should be provided on roadways to maintain safe driving conditions and ensure pedestrian safety. City Light has a responsibility to follow those standards. As a result, arterial classified roadways require a higher wattage LED than residential street lighting.

Arterial conversion work began in late March 2015. City Light’s contractor, Potelco, is working on Seattle’s arterial roadways between Denny Way and 65th Street. Minimal traffic and parking impacts are expected in the immediate work area. Depending on the progress, this phase of work may extend north to 145th Street. It is expected that all city of Seattle arterial roadways will be completed within two to three years.

SOURCE: City of Seattle

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