LED conversion helps Roads do its part this Earth Day

LED photo 2Did you hear about a recent project we did that is saving King County energy, money and freeing up staff time? Last year, King County Road Services (Roads) replaced nearly 700 streetlights along various roadways with Light-Emitting Diode (LED) bulbs, a move that makes this year’s Earth Day on April 22 shine brighter. Compared to the old High Pressure Sodium Vapor lights we used, these new LED’s are an ideal choice because they last about 10 times longer, have a whiter light so colors are more visible at night, shine brighter and are easier to maintain.

The nearly 700 LED lights we installed throughout King County are expected to:

  • Reduce energy costs by 54 percent or more than $57,300 every year
  • Save more than 510,000 kilowatt hours of electricity, enough to power 84 homes annually
  • Free up approximately 1,170 hours of maintenance staff time so they can focus on other Roads priorities
  • End up paying for themselves in less than eight years
  • Reduce light trespass on adjacent properties and up-light impacting visibility of stars in the night sky

The nearly $550,000 conversion was completed last fall, and we’ve already seen energy costs cut nearly in half at 20 of the busiest roadways and intersections, like Novelty Hill Road and Woodinville-Duvall Road. We’re happy to do our part to help assure that our roadways will be well-lit and sustainable for years to come.

For more information about Roads visit: http://www.kingcounty.gov/depts/transportation/roads.aspx Follow Roads on Twitter: https://twitter.com/kcroads

3 thoughts on “LED conversion helps Roads do its part this Earth Day

  1. Hi! These are great numbers and it seems like a win-win upgrade. Does KC plan to roll out the LED upgrades to all managed utility poles in the future? Will contract cities such as Burien receive these upgrades in the next few years? Thanks!

    • Hi,
      Thank you for your feedback and questions. Street lights on utility poles are owned and maintained by several local power companies, such as Seattle City Light and Puget Sound Energy. King County owns and maintains very few street lights and is not legally able to fund work that will provide an asset to another entity. Seattle City Light has begun replacing street lights in some areas on their own. Information about their work can be found on their website at: http://www.seattle.gov/light/atwork

      Puget Sound Energy is also taking steps to replace street lights in smaller communities. Information can be found on their website at: https://pse.com/aboutpse/PseNewsroom/NewsReleases/Pages/PSE-Launches-'Relight-Washington‘;-Massive-LED-Street-Lights-Upgrade.aspx

      Thank you again,
      DOT Staff

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