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Converting the City's Streetlights to LEDs

What are LED Streetlights?

LED stands for light-emitting diode. LED streetlights are extremely energy efficient, have a long life span, and produce better color and light quality compared to high-pressure sodium streetlights.

Why did the City of Alameda change to LED streetlights?

The city made the switch to reduce energy consumption, lower GHG emissions, and improve safety.

What kind of streetlights did the City of Alameda have?

High-pressure sodium vapor streetlights

How many streetlights were replaced with the LED streetlights?

Over 3,000 streetlights were installed around the city.

What types of streetlights were installed?

There are two different types of lights that have been installed: shoebox and cobrahead.

How did the City of Alameda pay for the LED streetlight conversion project?

From funds by the short-term sale of the utility’s renewable energy credits that were not needed to reach California’s new Renewable Portfolio Standard compliance.

GHG, Energy Efficiency, and Savings

  • The approximate GHG reduction from the LED street light retrofit is 312 metric tons of CO2e (*based upon the CA grid average GHG emissions factor).
  • The estimated energy savings from the street light project is 919,503 kWh or about $214,207 per year in electric costs.
  • Over the lifetime of the LED fixtures, the greatest savings will be in maintenance costs.
  • The existing high pressure sodium lights have a lifetime of 18,000 hours (4 years), while LEDs have a warranty of 10 years and an expected lifetime of about 12 years.

The Benefits of LED Streetlights

  • More even and efficient distribution of light
  • Reduced energy consumption resulting in energy savings and reduced GHG emissions
  • Reduced outages with longer lasting bulbs
  • Reduced maintenance costs
  • Better quality of light and increased safety
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