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| NEW - LED Traffic Light Case Study - click here to view. |
LED Traffic Lights
Current Fairfield figures
13 signaled intersections
470 traffic lights/bulbs at 69-150 watts each
Bulbs replaced 1-2 times per year
Lens over bulb gets burned and must be replaced every 1-2 years
Upgrade to LED lights, or Light Emitting Diodes
LED replacements use 5-19 watts
Bulbs replaced every 6-10 years
Lenses never burn
LEDs are brighter than incandescent bulbs
Why switch?
Total savings is nearly $18,000 per year.
Less work for public works - $6,500 savings per year in labor and materials
Lights are brighter
Less energy
$11,164.94 in energy savings per year
85%, or 129,082 kWh reduction in energy use per year
= taking 18.4 cars off the road
= saving 11,391 gallons of gas (or $40,882 worth at $3.59/gallon)
= taking 13.3 houses off the electric grid*
Alliant program:
Alliant pays for materials and labor for replacing all traffic lights
All work to be completed in one night
City of Fairfield pays for new lamps through energy savings over 4 years
Alliant to cease giving incentives next year - we got in under the wire
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