Streetlight Retrofits

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StreetlightTempe received $377,000 in Energy Efficiency and Conservation Block Grant funds and a $432,500 Community Development Block Grant through the American Recovery and Reinvestment Act for streetlight retrofits.

More than 2,000 high pressure sodium streetlights in the downtown and in neighborhoods will be converted to induction lighting to help reduce energy use and greenhouse gas emissions and well as save money. Tempe will continue to seek additional funds to expand the program citywide.


Better lighting and visibility

  • The induction lamps produce a crisper, white light than the yellow cast of traditional sodium lights
  • This provides greater visibility for pedestrians, bicyclists and drivers.
  • In the event of crime on a neighborhood street, it allows for more accurate witness accounts
Reduce energy use
  • The induction lamps will use 30-50% less energy than the current lamps
  • This is anticipated to result in 30-35% reduced energy use in residential areas and 50% reduced energy use in the downtown area.
Reduce environmental impact
  • 726 metric tons of carbon emissions will be eliminated
  • The induction lamps will last for 20-plus years before needing to be replaced, compared to about 3 years for the current lamps
  • The induction lamps contain 1/10 as much mercury as the current lamps, and the mercury in induction lamps is easier to recover and recycle than the material in the current lamps.
Save money
  • The estimated annual energy and maintenance savings is more than $70,000 in the downtown alone.